ELECTRIC RADIANT FLOORS

ELECTRIC RADIANT FLOORS

Electric radiant floors typically consist of electric cables built into the floor. Systems that feature mats of electrically conductive plastic mounted on the subfloor below a floor covering such as tile are also available.

Because of the relatively high cost of electricity, electric radiant floors are usually only cost-effective if they include a significant thermal mass such as a thick concrete floor and your electric utility company offers time-of-use rates. Time-of-use rates allow you to "charge" the concrete floor with heat during off-peak hours (approximately 9 p.m. to 6 a.m.). If the floor's thermal mass is large enough, the heat stored in it will keep the house comfortable for eight to ten hours without any further electrical input, particularly when daytime temperatures are significantly warmer than nighttime temperatures. This saves a considerable number of energy dollars compared to heating at peak electric rates during the day.

Despite its name

Despite its name, radiant floor heating depends heavily on convection, the natural circulation of heat within a room as air warmed by the floor rises. Radiant floor heating systems are significantly different from the radiant panels used in walls and ceilings. For this reason, the following sections discuss radiant floor heat and radiant panels separately.

RADIANT FLOOR HEAT

There are three types of radiant floor heat -- radiant air floors (air is the heat-carrying medium), electric radiant floors, and hot water (hydronic) radiant floors. You can further categorize these types by installation. Those that make use of the large thermal mass of a concrete slab floor or lightweight concrete over a wooden subfloor are called "wet installations,” and those in which the installer "sandwiches" the radiant floor tubing between two layers of plywood or attaches the tubing under the finished floor or subfloor are called "dry installations."

Radiant heating

Radiant heating systems supply heat directly to the floor or to panels in the wall or ceiling of a house. The systems depend largely on radiant heat transfer -- the delivery of heat directly from the hot surface to the people and objects in the room via infrared radiation. Radiant heating is the effect you feel when you can feel the warmth of a hot stovetop element from across the room. When radiant heating is located in the floor, it is often called radiant floor heating or simply floor heating.

Radiant heating has a number of advantages. It is more efficient than baseboard heating and usually more efficient than forced-air heating because it eliminates duct losses. People with allergies often prefer radiant heat because it doesn’t distribute allergens like forced air systems can. Hydronic (liquid-based) systems use little electricity, a benefit for homes off the power grid or in areas with high electricity prices. Hydronic systems can use a wide variety of energy sources to heat the liquid, including standard gas- or oil-fired boilers, wood-fired boilers, solar water heaters, or a combination of these sources.

CONTROL SYSTEMS

CONTROL SYSTEMS

All types of electric resistance heating are controlled through some type of thermostat. Baseboard heaters often use a line-voltage thermostat (the thermostat directly controls the power supplied to the heating device), while other devices use low-voltage thermostats (the thermostat uses a relay to turn the device on and off). Line-voltage thermostats can be built into the baseboard heater, but then they often don't sense the room temperature accurately. It's best to instead use a remote line-voltage or low-voltage thermostat installed on an interior wall. Both line-voltage and low-voltage thermostats are available asprogrammable thermostats for automatically setting back the temperature at night or while you're away.

Baseboard heaters supply heat to each room individually, so they are ideally suited to zone heating, which involves heating the occupied rooms in your home while allowing unoccupied area (such as empty guest rooms or seldom-used rooms) to remain cooler. Zone heating can produce energy savings of more than 20% compared to heating both occupied and unoccupied areas of your house.

Zone heating is most effective when the cooler portions of your home are insulated from the heated portions, allowing the different zones to truly operate independently. Note that the cooler parts of your home still need to be heated to well above freezing to avoid freezing pipes

Some storage systems

Some storage systems attempt to use the ground underneath homes for thermal storage of heat from electric resistance cables. However, this requires painstaking installation of insulation underneath concrete slabs and all around the heating elements to minimize major heat losses to the earth. Ground storage also makes it difficult for thermostats to control indoor temperatures.

Any type of energy storage systems suffers some energy loss. If you intend to pursue an electric thermal storage system, it would be best for the system to be located within the conditioned space of your home, so that any heat lost from the system actually heats your home, rather than escaping to the outdoors. It would also be best to know how quickly heat will escape from the system. A system that leaks too much heat could cause control problems, such as the accidental overheating of your home

Baseboard heaters

Baseboard heaters should sit at least three-quarters of an inch (1.9 centimeters) above the floor or carpet. This is to allow the cooler air on the floor to flow under and through the radiator fins so it can be heated. The heater should also fit tightly to the wall to prevent the warm air from convecting behind it and streaking the wall with dust particles.

The quality of baseboard heaters varies considerably. Cheaper models can be noisy and often give poor temperature control. Look for labels from Underwriter's Laboratories (UL) and the National Electrical Manufacturer's Association (NEMA). Compare warranties of the different models you are considering.

ELECTRIC WALL HEATERS

Electric wall heaters consist of an electric element with a reflector behind it to reflect heat into the room and usually a fan to move air through the heater. They are usually installed on interior walls because installing them in an exterior wall makes that wall difficult to insulate.

ELECTRIC BASEBOARD HEATERS

ELECTRIC BASEBOARD HEATERS

Electric baseboard heaters are zonal heaters controlled by thermostats located within each room. Baseboard heaters contain electric heating elements encased in metal pipes. The pipes, surrounded by aluminum fins to aid heat transfer, run the length of the baseboard heater's housing, or cabinet. As air within the heater is warmed, it rises into the room, and cooler air is drawn into the bottom of the heater. Some heat is also radiated from the pipe, fins, and housing.

Baseboard heaters are usually installed underneath windows. There, the heater's rising warm air counteracts falling cool air from the cold window glass. Baseboard heaters are seldom located on interior walls because standard heating practice is to supply heat at the home's perimeter, where the greatest heat loss occurs.

ELECTRIC FURNACES

ELECTRIC FURNACES

Electric furnaces are more expensive to operate than other electric resistance systems because of their duct heat losses and the extra energy required to distribute the heated air throughout your home (which is common for any heating system that uses ducts for distribution). Heated air is delivered throughout the home through supply ducts and returned to the furnace through return ducts. If these ducts run through unheated areas, they lose some of their heat through air leakage as well as heat radiation and convection from the duct's surface.

Blowers (large fans) in electric furnaces move air over a group of three to seven electric resistance coils, called elements, each of which are typically rated at five kilowatts. The furnace's heating elements activate in stages to avoid overloading the home's electrical system. A built-in thermostat called a limit controller prevents overheating. This limit controller may shut the furnace off if the blower fails or if a dirty filter is blocking the airflow.

ELECTRIC THERMAL STORAGE

ELECTRIC THERMAL STORAGE

Some electric utilities structure their rates in a way similar to telephone companies and charge more for electricity during the day and less at night. They do this in an attempt to reduce their "peak" demand.

If you are a customer of such a utility, you may be able to benefit from a heating system that stores electric heat during nighttime hours when rates are lower. This is called an electric thermal storage heater, and while it does not save energy, it can save you money because you can take advantage of these lower rates.

The most common type of electric thermal storage heater is a resistance heater with elements encased in heat-storing ceramic. Central furnaces incorporating ceramic block are also available, although they are not as common as room heaters. Storing electrically heated hot water in an insulated storage tank is another thermal storage option

compared

compared with electric resistance heating. The exception is in dry climates with either hot or mixed (hot and cold) temperatures (these climates are found in the non-coastal, non-mountainous part of California; the southern tip of Nevada; the southwest corner of Utah; southern and western Arizona; southern and eastern New Mexico; the southeast corner of Colorado; and western Texas). For these dry climates, there are so few heating days that the high cost of heating is not economically significant.

Electric resistance heating may also make sense for a home addition if it is not practical to extend the existing heating system to supply heat to the new addition.

System limits

System limits Heat pump data is taken from tests according to EN14511, therefore the head losses from heat source fans or liquid pumps are taken into account in the heat capacity and COP data. This model also includes the heat sink liquid pump.
The model takes into account the net space heating demand, Lh, of the house. The heat demand of the house is a consequence of the choice of the load profile and the so-called system losses Lsys. The size of Lsys depends on the characteristics of the boiler and the installation characteristics. The system losses include fluctuation losses, stratification losses, distribution losses, buffer losses and timer losses, which are set as a percentage that is depending on the heat demand.  
The model also includes losses from control, auxiliary equipment and system buffer standing losses.  
A back up heater is used to cover up the energy demand that the heat pump cannot deliver.  
The electricity use in the model is accounted with the primary energy factor 2.5

Input to the calculations

Input to the calculations The test method for testing the heat pump refers to best testing practice e.g. EN 14511 (see document 7) except for some deviations. The test points are similar to the test points in EN14511:2007, but the temperatures of the return/feed temperature differs, se table IV.2 in the standard. In LOT 1 the temperature difference between Treturn and Tfeed gets larger the higher temperature of the Tfeed. Only three test points are necessary to calculate the seasonal energy efficiency by using this model.  
The calculation uses a temperature bin method to evaluate the seasonal energy efficiency, etas. There are three different climates to chose among, warmer (+2°C), average (-10°C) and colder (-22°C), see table I.1, LOT 10.  Each bin describes the equivalent number of hours corresponding to the bin temperature with a resolution of one bin/K. Input data

The maximum heating capacity,

The maximum heating capacity, Pmax, at the different climates is calculated from the heating capacity data obtained in the test. It is not possible to choose the size of the required heat load for the building, but is given by the model for each bin level based on the capacity of the heat pump. To meet the lower heat load requirements at the different bin levels, the heat pump is assumed to work in part load condition. The heat pump does not have to be tested in part load operation; instead the model uses a degradation factor, Cd, to calculate the COP when working in part load condition. Cd can either be obtained from tests or a default value, Cd=0.15, can be use

For fixed capacity units

For fixed capacity units the default is COPmin= 0.89*COP at power output Phpmin=0.5*Php. For staged capacity units the default is COPmin= 0.975*COP at power output Phpmin=0.5*Php.  For variable capacity units the default is COPmin= COP at power output Phpmin=0.4*Php.
It is optional to choose whether the heat pump operates with night set back or not. The bin assumes constant night temperatures during night set back to +1°C, +6°C and 0°C for each climate respectively.  
Other inputs to the calculations is type of heat pump, type of operation of the heat pump, type of control of the heat pump, type of heating (floor heating or radiator heating), minimum source operating temperature, the effect of auxiliary equipment and backup electricity heater.  
Other possible energy sources can also be chosen, but this chapter only treats the heat pumps.

Output from the calculations

Output from the calculations The model calculates the energy use and losses based upon constant fractions. The fraction of the energy use and the different losses is displayed by the model. A diagram shows the energy supply per temperature bin and how it is covered from different energy sources.  The seasonal energy efficiency, etas, is calculated.  
Etas = Lh/Qtot+cctrl where Qtot=Lh + Lsys + Qgen + Qel
etas is the net space heating demand of the house over the sum of the generated heat of the system. Qtot is the sum of the space heating demand (Lh), the losses from the heating system (Lsys), the primary energy losses of the energy input to the system (Qgen) and the energy needed by the auxiliary equipment such as control and heat sink pumps (Qel).  
All electricity used by the heat pump and the backup heater is multiplied by a primary energy factor of 2.5. The model is not transparent. It is tricky to follow the outputs of the model since it consists from several excel-sheets and the information turns up all over. It is also difficult to understand all steps of the calculations. To be able to compare the results with field measurements and prEN14825 a value of SPF, the so called “average COP” (see the system boundaries) is calculated without the system losses. Average COP corresponds to SCOPnet in prEN14825.

is a calculation program

SP-method A3 528 SPA3 528 is a calculation program that is used to calculate the seasonal performance factor and energy saving over the year for houses having a defined heating requirement. It can be used for air/air heat pumps, air source heat pumps and ground source heat pumps. The heat loss from the house is defined in the program and given as the total loss factor, k-value, of the house [W/K]. The method can be used to calculate the energy requirement of a building with a k-value of either 109 W/K or 199W/K. A duration diagram of the outdoor temperature can be calculated from the mean annual temperature and together with the loss factor, the area under the duration curve gives the actual power requirement.
The heat pump is tested in accordance to EN 14511 at outdoor temperatures of -15°C, - 7°C, +2°C and +7°C with an indoor temperature of +20°C. The heat pump is also tested in part load conditions according to CEN/TS 14825 at +7°C (75% and 50%) and at +2°C (50%). The lowest ambient temperature is assumed to be -15 °C and no heating is assumed to be required for ambient temperatures above +17 °C. The output data from the tests, thermal heat capacity and electrical input power, is used as input to the calculation

The model is not completely clear

Strenghts A strength of standard prEN14825 is that it includes all kinds of heat pumps (except exhaust air heat pumps). The model treats heat pumps both in heating and cooling operation. The fact that the heat pump is tested in exactly part load should result in more sufficient results compared to degradation coefficient etc. The model is foreseeable and quite easy to follow.  
Weakness The model is not completely clear with its definitions of part loads. The part load ratio for which the heat pump is to be tested is the part load energy demand of the building at the corresponding temperature bin. To perform the SPF calculations according to prEN14825 the heat pump is tested at a certain climate (A,W or C) and a certain heat load profile for the building. This means that the test data might not be suitable for another climate or another heat load

HVAC Contamination Type

HVAC Contamination Type
Cleaning methods, project specifications, environmental
engineering controls, and cleanliness verification
methods may vary depending on the type of
contaminants found within a building and its HVAC
system. Recognizing the type of contaminants present
and the type of HVAC system(s) within the building are
important parts of the overall project evaluation.
The HVAC systems, including air-handling units and
representative areas of the HVAC system components
and ductwork, must be evaluated for contamination type
and levels.
An HVAC system component is considered
contaminated when evidence of significant particulate
debris and/or visual microbial growth exists. A system is
considered to have microbial contamination when the
HVAC cleanliness evaluation identifies microbial growth
through visual inspection and/or analytical verification.
An HVAC system that is part of a building that has been
classified as having Condition 3 mold contamination
does not require further evaluation of the contaminants
by an IEP for restoration to commence.
It is highly recommended that any individual taking and
interpreting samples from the interior of HVAC systems
be an IEP with specific training in taking samples from
within such systems.

The HVAC contamination type and the environmental

The HVAC contamination type and the environmental
impact survey must include a visual evaluation of
representative sections of the HVAC components and
the occupied spaces served by the HVAC system. This
evaluation serves to visually inspect conditions within the
HVAC system and verify the overall physical integrity of
system components and surfaces.
Information collected from the project evaluation should
be used to define the scope of the cleaning and
restoration project, cleaning techniques to be employed,
the environmental engineering controls required for the
workspace, and any unique project requirements.

4.1 Building Use Classification
Classifying the type of building and its uses is an
important part of project evaluation. Cleaning methods,
project specifications, environmental engineering
controls, and cleanliness verification methods may vary
among different buildings. Building classifications are
listed in Sections 4.1.1 to 4.1.8 of this standard. If the
HVAC system restoration project is being conducted as
part of a larger mold remediation project, it is
recommended the building’s usage classification be
determined by an IEP to assess the overall impact of the
contamination present and the corrective cleaning
actions specified to remediate the contamination.

design inadequate for the current needs of the

design inadequate for the current needs of the
building and its occupants;
• The system may not have been installed as
designed, or commissioned so as to assure that its
operation met the design objectives; and
• Mechanical deterioration and/or physical damage to
system components may have degraded their
performance to the point where they cannot provide
the necessary level of air flow or capacity.
The description of what constitutes an adequate
engineering evaluation of HVAC system condition and
capacity is beyond the scope of this standard. It is
recommended that qualified engineering professionals or
HVAC contractors be consulted for such an evaluation.
4 Project Evaluation and Recommendation
When contamination is identified or other criteria
triggering cleaning in Section 3 are met, it is highly
recommended a project evaluation take place prior to
initiating cleaning work. The project evaluation includes
three steps: 1) determining the building usage by
classification; 2) identifying the type of contamination
present in the HVAC system; and 3) conducting an
indoor environmental impact survey.

HVAC System Engineering Assessment

HVAC System Engineering Assessment
It is highly recommended that in addition to an HVAC
cleanliness inspection, a complete engineering
assessment of the design and condition of the entire
HVAC system be considered depending on the
conditions that exist in the project. This is especially
important if temperature and/or relative humidity
conditions cannot be maintained within the spaces in
compliance with the requirements of ASHRAE
Standards 62.1 or 62.2; if temperatures, relative humidity
or airflow varies between different areas of the building;
or, if the mechanical components are not in good
condition and/or repair. There are four primary reasons
this HVAC System Engineering Assessment is important
to the success of a remediation project:
• The original system design may not have been
adequate to maintain optimal indoor environmental
(or psychrometric) conditions in the building;
• Expansions, renovations or changes of use of the
original space may have rendered the HVAC system

If the HVAC system

If the HVAC system discharges visible particulate into
the occupied space, or a contribution of airborne
particles from the HVAC system into the indoor ambient
air is confirmed, then cleaning is highly recommended.
See the guideline to this standard for discussion of the
Particle Profiling (PP) procedure, which may be used to
confirm if non-visible contaminants are being introduced
into the indoor environment via the HVAC system.
3.5.2 Compromised Performance
Cleaning is highly recommended for heat exchange
coils, cooling coils, air flow control devices, filtration
devices, and air-handling equipment determined to have
restrictions, blockages, or contamination deposits that
may cause system performance inefficiencies, air flow
degradation, or that may significantly affect the design
intent of the HVAC system.
3.5.3 Indoor Air Quality Management
Indoor air quality management plans that include
periodic cleaning and maintenance are highly
recommended to minimize recurring contamination
within HVAC systems. It is highly recommended that
special consideration be given to buildings or residences
with sensitive populations such as individuals with
compromised immune systems, and specialized
environments or buildings with sensitive building
contents or critical processes.

HVAC Inspector Qualifications

HVAC Inspector Qualifications
It is highly recommended that a qualified HVAC
inspector be used to determine the preliminary state of
HVAC system cleanliness. At minimum, such personnel
should have a verifiable working knowledge of basic
HVAC system design, fundamental HVAC engineering
practices, current industry HVAC cleaning and
restoration techniques, and applicable industry
standards. Individuals who are inspecting for microbial
contamination should be qualified to determine
Conditions 1, 2 and 3.
3.5 Conditions Requiring Cleaning
It is highly recommended HVAC system cleaning be
performed when any of the following conditions are
found during the HVAC Cleanliness Inspection.
3.5.1 HVAC System Contamination
If significant accumulations of contaminants or debris are
visually observed within the HVAC system, then cleaning
is necessary. Likewise, if evidence of active fungal
colonization is visually observed or confirmed by
analytical methods, then cleaning is required. If the
system has been confirmed by an IEP to be at Condition

Preliminary Determination for Mold

Preliminary Determination for Mold
After the initial HVAC system component inspection, a
preliminary determination must be made by the person
performing the inspection regarding potential mold
contamination. Making a determination involves the
collection, analysis and summary of information to
identify areas of moisture accumulation and potential
mold growth. A preliminary determination may indicate
the need for further assessment by an IEP and/or other
appropriate professionals (See IICRC S520).
3.3.2 Surface Mold Growth
If the preliminary determination indicates a small,
isolated area of mold growth on a surface layer of
condensation on painted walls or non-porous surfaces,
and mold growth has not occurred in concealed areas,
the use of an IEP generally is not necessary and the
mold usually can be removed as part of a regular HVAC
maintenance program (See IICRC S520).
3.3.3 Limited Mold Growth
If the preliminary determination indicates a limited
amount of visible mold confined to a specific area, (e.g.
a small area of a mechanical system that is not in the
path of the major air circulation system of the structure),
the use of an IEP may or may not be necessary and the
restorer or remediator’s professional judgment is needed

Indoor climate

Indoor climate
The indoor climate is expected to reach 20°C for all models. In the calculation models the heat pump is used to reach a temperature of 16°C. Internal gains are expected to contribute to the last temperature increase.
The actual indoor temperature has not been measured in the Fraunhofer field measurements. Thereby it is not possible to compare the real indoor temperatures with the temperatures estimated in the calculation models.

heat requirement

Weakness The model takes only air to air heat pumps into account. In accordance to prEN14825 the test points for the heat pump has to be chosen specifically to fit the chosen climate and heat profile of the house.  In accordance to LOT 1 the model does not include an effect balance at each temperature bin. This results in that the heat demand of a house at a specific temperature bin is different at different climates and that the heat requirement of a backup heater is misleading.  The model does not seem to be entirely consistent, partly it is contradicting itself.

Possibility

Possibility To make the model usable at other spots it would be better to make it possible to use other climates. Now the model only provides a number of specified heat loads of the house. It would be useful to be able to freely choose the heat demand of the house. There is a risk though, that since the heat pump has to be tested in part load, it has to be tested at each specific heat requirement.  
Other types of heat pumps could be included in the model. The model only provides the SPF (SCOP) with the backup heater included. For comparable reasons, it would be useful to include a SPF with backup heater excluded

Even though

Even though the program is transparent  in the sense that all equations are  reported in the model, it is very hard to understand and follow the calculations, and the program cannot be said to be transparent in the general sense. The interface of the program is not very friendly and can easily confuse the user. The model does not include tap water.
Possibility Making the ground water and borehole temperature climate dependent might lead to results more sufficient to its actual installation spot.  
Risk The model is not adjusted to fit heat pumps and is disadvantaging heat pumps. Despite this the COP and capacity of water to water heat pumps can be overestimated since they are tested at +10°C at the cold side (this can also happen to ground source heat pumps, but probably not to the same extent

The night set

The night set back function uses the same night temperature all year around, which is not the case in reality.
It is not possible to choose the energy requirement of the house; instead the energy demand is an outcome of the capacity of the heat pump. If the heat pump is not monovalent also the fraction of backup heat is needed to decide the energy demand of the house.  
GSHP’s are treated unfairly when recalculating the operation data to part load operation. The ground source heat pumps are degraded by a factor 0.89 at 50 % of the delivered capacity. (The Cd factor, i.e. the on/off control, is overestimated for water borne systems

Weakness Unfortunately

Weakness Unfortunately the model still contains bugs and technical mistakes in the equations and the way of thinking. It seems to be adjusted to boilers and bio boilers instead of heat pumps.  
The model does not include a power balance, but is doing a temperature balance instead. This makes the distribution of the energy need and the required amounts of backup heat differ from the theoretical needed.  
The model includes a decided fraction of heat loss that cannot be escaped from. For example if the heat pump does not use night set back a default penalty loss of 12% from the total delivered energy is subtracted. The losses from the apparatus and system operation are also decided in percentages.  
At part load operation there is no change in the system flows. This does not seem right with controlled radiators. (Should the radiators be controlled or is it enough with a displacement/adjustment of the radiator curve?)

FIGURE 4

FIGURE 4
In addition to a reversing valve, a heat pump is equipped
with an expansion device and check valve for the inside coil,
and similar equipment for the outside coil. It is also provided
with a defrost control system.
The expansion device performs the same function on the
heating cycle as on the cooling cycle. The check valves are
required due to the reverse flow of refrigerant when changing
from cooling to heating or vice versa.
When the heat pump is on the heating cycle, at which time
the outdoor coil is functioning as an evaporator, the
temperature of the refrigerant in the outdoor coil must be
below the temperature of the outdoor air in order for the
refrigerant in the outdoor coil to extract heat from the air.
Thus, the greater the difference in outdoor temperature and
outdoor coil temperature, the greater the heating capacity of
the heat pump. Since this is characteristic of heat pumps, it

This study

This study is focused on heat pumps for indoor heating. The study is made in houses with different heat demand. The ground source heat pumps in this study are considered monovalent, but it is difficult to determine the actual energy demand of the house. When using the calculation models the required heat load of the house is decided by the capacity of the heat pump.
The studied air to air heat pump is not monovalent. The energy demand of the house with the heat pump installation was estimated in the field study. When using the calculation models the energy demand of the house were tried to be the same as in the field study.

is good practice

is good practice to provide supplementary heat for all heat
pump installations in areas where the temperature drops
below 45°F. It is also good practice to provide sufficient
supplementary heat to handle the entire heating requirements
if there should be a failure of heat pump, such as a
compressor failure, or refrigerant leak, etc.
Since the temperature of the liquid refrigerant in the outdoor
coil on the heating cycle is generally below the freezing point,
frost forms on the surfaces of the outdoor coil under certain
weather conditions of temperature and relative humidity,
Therefore, it is necessary to reverse the flow of the refrigerant
to provide hot gas in the outdoor coil to melt the frost
accumulation. This is accomplished by reversing the heat
pump to the cooling cycle. At the same time, the outdoor fan
stops to hasten the temperature rise of the outdoor coil and
lessen the time required for defrosting. The indoor blower
continues to run and the supplementary heaters are
energized

MAINTENANCE

MAINTENANCE
General
Outdoor units do not require a planned prevenative
maintenance program under normal operating conditions, but
not less than once each cooling season, it is recommended
that the unit be inspected and, if necessary, cleaned.
Particular attention should be given to the air inlet side of the
outdoor coil to insure that leaves, grass, etc., are not being
drawn into the unit. Restriction to air flow across the coil will
result in loss of system capacity, high operating pressures
and excessive operating costs. If the outdoor unit is installed
adjacent to a grassy area, it is suggested that lawn mowers
be routed in such a manner that the discharge of the mower
will be directed away from the unit. There must be air filters
installed in the system at some point upstream to the indoor
coil. Air filters should be inspected and, if necessary, replaced
and/or cleaned AT LEAST once a month

Disconnect outdoor

Disconnect outdoor fan by removing the purple lead from
"DF2" on defrost control.
E. Restart unit and allow frost to accumulate.
F. After a few minutes of operation, the defrost thermostat
should close. To verify this, check for 24 volts between
"DFT" and "C" on board. If the temperature at the
thermostat is less than 28°F and the thermostat is open,
replace the thermostat as it is defective.
G. When the defrost thermostat has closed, short the "test"
pins on the board until the reversing valve shifts,
indicating defrost. This could take up to 21 seconds
depending on what timing period the board is set on.
After defrost initiation, the short must instantly be removed
or the defrost period will only last 2.3 seconds.
H. After the defrost has terminated, check the defrost
thermostat for 24 volts between "DFT" and "C". The
reading should indicate 0 volts (open sensor).
I. Shut off power to unit.
J. Replace outdoor fan motor lead and turn on power

General Explanation and Guidance

General Explanation and Guidance
The heat pump is a relatively simple device. It operates exactly
as a Summer Air Conditioning unit when it is on the cooling
cycle. Therefore, all the charts and data for service that apply
to summer air conditioning apply to the heat pump when it is
on the cooling cycle, and most apply on the heating cycle
except that "condenser" becomes "evaporator", "evaporator"
becomes "condenser" and "cooling" becomes "heating".
When the heat pump is on the heating cycle, it is necessary
to redirect the refrigerant flow through the refrigerant circuit
external to the compressor. This is accomplished with a
reversing valve. Thus, the hot discharge vapor from the
compressor is directed to the inside coil (evaporator on the
cooling cycle) where the heat is removed, and the vapor
condenses into liquid. It then goes through a capillary tube,
or expansion valve, to the outside coil (condenser on the
cooling cycle) where the liquid is evaporated, and vapor goes
to the compressor.

OPERATION - DEFROST CONTROL

OPERATION - DEFROST CONTROL
Timing
When operating, the power to the circuit board is controlled
by a temperature sensor which is clamped to a return bend
on the outdoor coil. Timing periods of 30, 60, or 90 minutes
may be selected by connecting the circuit board jumper wire
to 30, 60, 90 respectively. Accumulation of time for the timing
period selected starts when the sensor closes (approximately
28°F) and when the wall thermostat is calling for heat. At the
end of the timing period, a defrost cycle will be initiated,
provided the sensor remains closed. When the sensor opens
(approximately 65°F), the defrost cycle is terminated. If the
defrost cycle is not terminated due to the sensor temperature,
a 10 minute override interrupts the defrost period.
Field Testing / Trouble Shooting
A. Run unit in heat mode.
B. Check unit for proper charge. Note: Bands of frost indicate
low refrigerant charge
C. Shut off power to unit

If unit operates

 If unit operates properly on the heating cycle, raise the
heating temperature setting high enough until the heating
second-stage mercury bulb (lower) makes contact.
13. Supplementary resistance heat, if installed, should now
come on. Make sure it is operating correctly. If outdoor
thermostats are installed, the outdoor ambient must be
below the set point of these thermostats for heaters to
operate. It may be necessary to jumper these thermostats
to check heater operation if outdoor ambient is mild.
14. For thermostats with emergency heat switch, return to
startup (Step #9). The emergency heat switch is located
at the bottom of the thermostat. Move this switch to
emergency heat. The heat pump will stop, the indoor
blower will continue to run, all heaters will come on and
the thermostat emergency heat light will come on.
15. If checking the unit on the heating cycle in the wintertime,
when the outdoor coil is cold enough to actuate the defrost
control, observe at least one defrost cycle to make sure
the unit defrosts properly.

Problem

The UCIAQ Committee discourages the use of chemical sanitizers or biocides to treat building supply and return duct work. Although many antimicrobial products are EPA approved for use on hard, non-porous surfaces, these products were not specifically designed for use in HVAC systems and have not been evaluated for potential occupant health exposure issues. Any use of chemical sanitizers or biocides in duct work should be carefully reviewed by a health and safety professional prior to treatment. Problems involving visible fungal growth inside duct work must be addressed by first determining the source of moisture and correcting this problem. Following correction of the moisture problem, the system can be cleaned using mechanical techniques and detergents. Porous HVAC system materials such as insulation or fabric filters contaminated with visible fungal growth should be discarded and replaced.

Chemical

Chemical Sanitizers and Biocides  The use of chemical sanitizers or biocides may be necessary to clean certain HVAC system components such as heating or cooling coils. Following the use of chemical cleaners, all residues should be completely rinsed from the coil surfaces and removed from the HVAC system. Chapter 3, HVAC Operation and Maintenance, discusses the importance of routine sanitizing and use of biocides in cooling towers to reduce the number of microorganisms including Legionella spp.

When using

When using mechanical cleaning techniques, care must be taken to avoid damaging insulated or lined duct work. Fiber glass insulated components should be cleaned using HEPA filtered exhaust equipment while the system is maintained under negative pressure. Fibrous glass insulated materials identified as damaged prior to or following system cleaning should be identified and replaced. Potential damage to fibrous glass insulation materials includes delaminating, friable material, fungal growth, or damp, wet material. If fiber glass insulation material must be replaced, all replacement materials and repair work must conform to applicable industry standards and codes.

Mechanical

Mechanical Cleaning Techniques  Mechanical techniques are useful to clean certain HVAC components including duct work, fan components, diffusers, dampers, and internal surfaces of the air handling unit. When using mechanical cleaning methods, strict controls such as physical barriers, devices equipped with HEPA filtered exhaust, and system negative pressure must be used to contain and collect debris. Mechanical cleaning methods incorporate techniques to agitate and dislodge material as well as contain and remove it. Agitation devices may include power brushes, pressurized air and water systems, as well as hand tools such as brushes. Collection of dislodged particulate debris is achieved by vacuums. A vacuum collection device with an appropriate capture velocity should be connected to a service opening and operated continuously to collect material as it is dislodged. In certain areas of the HVAC system, direct contact vacuuming with a brush may be used to remove material from contaminated surfaces

HVAC

HVAC System Cleaning  For cleaning purposes, the HVAC system includes any interior surface of the air distribution system. This includes all components from where the air enters the system to all points of discharge in the facility. Methods to clean HVAC systems involve both mechanical techniques and chemical sanitizers or biocides. The preferred method of cleaning depends on the system component, type of debris or contamination, and access to the area. In no case should encapsulants or coatings be used prior to or instead of appropriate cleaning

Determining

Determining the Need for Cleaning  HVAC systems should be cleaned when a visual inspection indicates excessive particulate debris or microbiological growth on any interior surfaces. A fiber optic system or video inspection system is recommended to document the condition of the system both before and after any cleaning. A limited amount of adhered dust is expected on the inside surfaces of HVAC systems and may not indicate a problem. Obvious problems that require cleaning and restoration would include visible microbiological contamination, significant amounts of particulate debris coming out of supply ducts, or deteriorated fiberglass insulation that was contaminating the supply air. In all cases, the source or cause of particulate contamination or microbiological proliferation must be determined and corrected prior to system cleaning

Committee

The UCIAQ Committee recommends hiring a certified and trained contractor to perform HVAC system cleaning. Contractors should use accepted industry standards such as those outlined by the Association of Specialists in Cleaning and Restoration (ASCR), the National Air Duct Cleaners Association (NADCA), and the North American Insulation Manufacturers Association (NAIMA). Although in-house facilities or custodial services may perform limited HVAC system cleaning activities (ie. removal of particulate debris from diffusers, cleaning and repairing small localized duct damage), specialized expertise, skill and experience is required to properly clean and restore an entire HVAC system to optimal performance.

Many HVAC

Many HVAC 

Contractors are 

looking for ways to 

expand and grow 

your business. It 

makes sense to 

consider a service 

that have good long 

term potential, a 

service that 

compliments your 

existing services, a 

service that is not 

difficult to enter and 

a service that offers 

good profitability. 

The indoor air quality 

market in general and 

air duct cleaning in 

particular is just such 

a service. 

The concern and 

need for good indoor 

air quality will 

probably never go 

away so the market 

for air duct cleaning 

should remain strong 

for a long time. Air 

duct cleaning is a 

natural partner or 

extension of HVAC 

system installation 

and servicing. Air 

duct cleaning offers 

many benefits to the 

HVAC Contractor 

including: 

• Excellent gross 

margins (40% to 

60%) 

• Significant add-on 

revenues with 

existing customers. 

• Identifying potential 

HVAC retrofit 

customers and 

generate new 

equipment and 

service sales. 

• Help sell other IAQ 

related products 

• Generate revenues 

during slow times 

of the year. 

Qualifications 

There is probably no 

one more qualified 

then the HVAC 

Contractor to perform 

air duct cleaning 

services. They 

already have 

extensive knowledge 

of the HVAC

Indoor Air Quality Services

Indoor Air Quality Services

As your HVAC system draws in more air, it also draws in contaminants. These contaminants tend to collect on smoke and fire dampers inside the ductwork. This can create a safety issue. As the debris worsens, the damper could stop operating. This would cause the ductwork to convey the smoke and/or fire to other occupied areas of the building. Therefore, it is imperative that the dampers be cleaned and serviced regularly with professional HVAC duct cleaning and HVAC vent cleaning.

Air duct systems could easily convey fire and/or smoke throughout your structure if the damper systems are not functioning properly. Due to budget crunches and other circumstances, it is not always possible for your maintenance staff to attend to the inspection and service of the damper systems.

This can pose several potential problems:

This can pose several potential problems:
1. EPA studies show that a buildup of just .42" on the coil surface can reduce the efficiency of
that system by at least 21%. That means that over time, you are increasing heating and
cooling costs, while reducing the amount of heating and cooling you are actually creating.
2. Increased particulates inside the ductwork increase the amount of vacuuming and dusting
that are needed in your facility. Have you ever come in after your area was dusted and still
see a fine layer of dust? That happens when the ductwork acts as a "dust distribution
device."
3. Increased particulates inside the ductwork also mean increased allergens. Have you heard
of "Building Related Illness", and "Sick Building Syndrome"? These medical conditions are
greatly contributed to by having ductwork that has not been cleaned in years, sometimes
never cleaned.
Cleaning the ductwork in your facility is just plain good sense! It saves time and money in the long
run by increasing system efficiency and reducing the amount of custodial work that must be done.
It also increases the quality of air, contributing to a healthier working environment.
At Lamunyon Cleaning and Restoration, we look forward to assisting you in improving your indoor
air quality, increasing your efficiency, and ultimately helping the "lungs" of your building last a lot
longer!

Commercial Air Duct Cleaning

Commercial Air Duct Cleaning
How many times have you thought "I need to step outside to get a breath of fresh air?"
Unfortunately, according to the EPA, that is almost exactly what you would need to do. Even with
high levels of allergens, pollutants and debris in the air outside, it is still 70% cleaner than the air
we filter and circulate in our buildings!
We have our facilities vacuumed and dusted at least once a week and yet may not address the
"lungs" of our buildings for years, even decades. The HVAC or air conditioning system carries the air
that we breathe from its central unit throughout ductwork into our workspaces. This air is
saturated with contaminants that build up in our buildings over time. Hair, skin cells, ink, paper,
dirt, bugs, bacteria, and mold are commonly found inside even relatively clean ductwork. However,
as the filters in the system get loaded, many particles start bypassing the filtration, and over time
can accumulate on surfaces of the air handling units themselves, as well as the ductwork
throughout the building

While we may

While we may spend time and money on vacuums, dusters, even air cleaners for individual rooms,
one of the best ways we can immediately improve the indoor air quality in our homes is with air
duct cleaning and restoration. When making the decision to clean the air ducts in your home, it is
important to keep several factors in mind. One, does the company cleaning your air ducts conform
to accepted standards of cleaning? Namely, do they clean in accordance with NADCA Standard ASC-
2006? That standard states that in order to clean ductwork, the system must be placed under
negative air pressure and then physically agitated with cables and brushes and/or compressed air.
Some duct cleaning systems do not allow for this to take place. Some are not much more than a
glorified shop vacuum.

At Lamunyon

At Lamunyon Cleaning and Restoration, we use a truck mounted vacuum collection system that
provides over 10,000 CFM of suction! We will remove the debris and contaminants from your air
ducts, and ensure that it leaves your home for good.
Another factor to consider is what does the price reflect? At Lamunyon Cleaning and Restoration,
the price we quote reflects the total job price. We include cleaning all supply and return ductwork,
registers, and the actual air handling unit itself. In other words, wherever the air goes, we clean! We
also clean your dryer vent at no additional cost to you. This removes compacted dryer lint from the
system that could potentially be a fire hazard. It also increases the efficiency of your dryer.
If you would like to know more about having your residential air ducts professionally cleaned,
please give us a call or request more information.

Residential Air Duct Cleaning

Residential Air Duct Cleaning
What a wonderful thing air conditioning is! We can have cool air in the summer and warm air in the
winter, and always feel comfortable in our home. All thanks to the HVAC system and its ductwork.
But, because of this modern convenience, it is less common for us to open all the windows and "air
out" the house. The EPA states that the air indoors can be 70% more polluted than the air outside.
Yet we spend up to 90% of our time indoors. That means that we are constantly polluting our lungs
by breathing in contaminants from the air in our homes.

The Big Foot Systems

The Big Foot Systems versatile range offers an array of solutions to support a variety of air handling units and ventilation systems. Many larger air-handling units are made up of several sectional components that can be individually crane lifted directly onto rooftops. Frame kits for most major manufacturer’s VRV/ VRF units are available from stock.
With the main plant positioned upon the roof, there is generally a need to install the associated auxiliary services. M&E containment such as ductwork, pipe and cable tray can be supported from a number of auxiliary support product

The make-up air supply

The make-up air supply. Outside air is delivered around the house, with one supply point in each bedroom and at least one in the living area. The suction created by the exhaust fan pulls air through the house from supply points to the pick-up points. By properly locating the pick-up and supply points, outside air will travel throughout the entire house.

Our HVC Series

Our HVC Series DD Double Deflection Grilles are recommended for supply in a huge variety of  applications.
The two rows of blades are set at 90 degrees to each other, with one row set just behind the front most row. Gaps between the blades are sufficient to allow easy adjustment of blades, enabling custom blow patterns to be created. Whether these be targeted towards one area or fanned out to affect a wide area

A consistently

A consistently popular product, ceiling diffusers are effective supply units suited perfectly to modular ceiling systems.
Normally used in commercial installations requiring an air change rate up to about 10 times per hour. Our louvre faced ceiling diffusers are especially suitable where people are working for long periods of time, and draughts need to be avoided.
Ceiling diffusers are designed to integrate into lay in T bar ceilings as standard. However should you require it, we can fit your CD into burgess tiles or other tile system

he standard Egg

he standard Egg Crate extract grille has now been joined by the Egg Crate 45 degree grille, giving the same performance .
Egg Crate Core is made from thin aluminium strips arranged into a lattice. The square holes in the core are sized 12.5mm x 12.5mm, resulting in a free area of over 90%. This core is held within a one of two available frames. Designed to integrate with the wider range of grille frames, you can be sure of design consistency whatever grille you buy from us.

Principally

Principally designed for our natural ventilation range, our plastic volume control dampers have a shut off level far surpassing that of regular volume control dampers and even some shut off dampers.
Independent tests show no leakage below 10Pa; the pressure most likely to be found in natural ventilation installations.
With even 10Pa rarely being exceeded in natural ventilation situations, it is clear how uPVC volume control dampers can enhance the efficiency of your new natural ventilation system.

Volume Control Dampers

Our Volume Control Dampers have numerous features designed to give maximum performance. We use an aerofoil blade, shaped to provide exceptionally low resistance to air travelling over it.
The standard out of airstream linkage is also fitted, protecting the precise gears from dust and moisture. This linkage system uses nylon gears and wearing parts, coming together to produce a damper with exceptionally low operating torque. Not only does this make it easier for you to adjust your damper manually, but, if motorised, it means dramatically reduced loading on actuators and therefore an extended working life

The ventilation system

The ventilation system ductwork is manufactured and installed to incorporate cleaning and maintenance access doors to fully comply with DW /144 ductwork standards.
Ductwork selection can vary dependant on our clients’ criteria; the options include for spirally wound, galvanised with or without the required for mezz flanges or even 1mm thick stainless steel. All ductwork can be powder coated internally and externally to any colour within the BS or RAL colour rang

A ventilation system

A ventilation system will maintain overall indoor-air quality. A basic ventilation system expels stale air (containing water vapour, carbon dioxide, airborne chemicals and other pollutants), draws in outside air (containing fewer pollutants and less water vapour), and distributes outside air throughout the house.
There are two elements in a basic ventilation system:
A fan to extract stale air. Pick-up points for stale air are generally in high moisture areas, such as the kitchen, utility and bathrooms.

Installing ventilation

Installing ventilation will get rid of excess moisture.
Kitchen, bathroom and basement exhaust fans are a good beginning for those specific trouble spots, providing spot ventilation to expel moisture and odours from limited areas. With spot ventilation, you can manually flip a switch and solve the problem.

Altering splits

Altering splits, sodden sealing or enhancing seepage will help right dampness issues. In the event that water is spilling in from outside, its amazingly paramount that it is remedied.

So as to accomplish successful ventilation inside a room, the openings through which air retreats the house ought to be bigger than those where it enters. Ventilation openings ought to be in overabundance of 10 for every penny of the carpet region of each one room.

The sum, style

The sum, style, and size of windows are basic, while the situation of most windows relies on upon development of air because of outside weight contrasts.

In particular

In particular, viable ventilation guarantees you and your family are existing inside a the earth. Lessening the measure of dust in your home will help everybody inhale less demanding, while molds are presumably the most widely recognized wellspring of indoor air contamination, creating anaphylaxes, cerebral pains, and respiratory issues.

stains in your lavatory,

Are there stains in your lavatory, discolouration around window scarves and layers of dust on the highest point of shelves and closets? A general absence of ventilation can result in a development of dampness and stale air, inescapably prompting shape, dust and awful smells. Forestalling indoor air quality issues can be moderate and simple, and you'd be shocked the amount less demanding it will make cleaning your home.

DRYER FIRE PREVENTION IN YOUR HOME

DRYER FIRE PREVENTION IN YOUR HOME

In addition to air duct cleaning, our certified technicians also clean dryer vents. having your dryer vents professionally cleaned regularly not only saves you money in energy efficiency, it can help prevent a dryer fire in your home.

Watch for the following signs that an air duct cleaning is overdue:

• Dirty supply and return vent covers.
• Dark filtration lines on the walls, ceiling or carpet that surround the vents.
• Excessive dust in the home.
• Variance in temperature or air flow throughout the house.
• An increase in the energy needed to operate the HVAC system at desired settings. This may indicate that dirt and debris are blocking coils and/or ductwork, restricting flow and spiking utility bills.
• New furnace or ductwork.
• A recent remodel/construction project.
• Water damage or flooding that occurred in the ductwork, which could cause sediment build-up in the system.

When it comes to air duct cleaning, Stanley Steemer never cuts corners. We don’t take what we do for granted. That's why we're proud to be NADCA certified. And we know that a cleaner, healthier home starts in your air ducts. We’re Stanley Steemer. We go beyond carpet cleaning.

WHEN IT COMES TO ALLERGEN REDUCTION, WE GO BEYOND CARPET CLEANING

WHEN IT COMES TO ALLERGEN REDUCTION, WE GO BEYOND CARPET CLEANING

In an effort to offer customers additional options for alergen reduction, Stanley Steemer has partnered with Lysol® Air Filters to offer the first certified asthma & allergy friendlyTM HVAC/Furnace Filter. Based on rigorous testing with actual allergens at independent accredited laboratories, AAFA found these filters to remove at least 95% pollen, 92% dust mite allergen, and 85% pet dander. This remarkable filter features Lysol® Triple ProtectionTM designed to trap pollutants and allergens, neutralize odors, and features a built-in antimicrobial to inhibit the growth of some bacteria on the filter*. The result is a cleaner, fresher indoor air. Ask our technicians in-home about this product, and get even more effective results by using this AAFA Certified air filt

LET’S CLEAR THE AIR

LET’S CLEAR THE AIR

According to the national Air Duct Cleaners Association (NADCA), the average six-room house collects 40 pounds of dirt, dust and allergens in its air ducts each year. That’s a big problem, considering that 40,000 dust mites can thrive in only one ounce of dust. Those little dust “bunnies” contain a host of unhealthy bacteria, fungi and mold. The EPA estimates indoor air can be two to five times more polluted than outdoor air. Even worse, the contaminated air circulates throughout your house every time the heating or cooling system kicks on.

Advanced 3-Stage Filtration Technology

Advanced 3-Stage Filtration Technology - TrueCLEAN uses an unique three-step process that cleans the air in your home like never before. The Charge-Capture-Destroy process not only captures more particles than traditional media filters, but also deactivates up to 99% of those particles - keeping your home and family safe

Highly Effective - Captures a wide range of particles including airborne dust, pollen, smoke, mold spores and other bacteria

Replace Less Often - Lasts up to four times longer than a standard one-inch furnace filter. Replace every 6-12 months

Brief History of the Clean Air Act

Brief History of the Clean Air Act
The Clean Air Act is a federal law covering the entire country. However, states, tribes and local governments do a lot of the work to meet the Act's requirements. For example, representatives from these agencies work with companies to reduce air pollution. They also review and approve permit applications for industries or chemical processes

Brief History of the Clean Air Act

Brief History of the Clean Air Act

In October 1948, a thick cloud of air pollution formed above the industrial town of Donora, Pennsylvania. The cloud which lingered for five days, killed 20 people and caused sickness in 6,000 of the town's 14,000 people. In 1952, over 3,000 people died in what became known as London's "Killer Fog." The smog was so thick that buses could not run without guides walking ahead of them carrying lanterns.

Events like these alerted us to the dangers that air pollution poses to public health. Several federal and state laws were passed, including the original Clean Air Act of 1963, which established funding for the study and the cleanup of air pollution. But there was no comprehensive federal response to address air pollution until Congress passed a much stronger Clean Air Act in 1970. That same year Congress created the EPA and gave it the primary role in carrying out the law. Since 1970, EPA has been responsible for a variety of Clean Air Act programs to reduce air pollution nationwide.

The Clean Air Act

The Clean Air Act requirements are comprehensive and cover many different pollution sources and a variety of clean-up methods to reduce common air pollutants. Many of the clean-up requirements for particle pollution and ground-level ozone involve large industrial sources (power plants, chemical producers, and petroleum refineries), as well as motor vehicles (cars, trucks, and buses). Also, in nonattainment areas, controls are generally required for smaller pollution sources, such as gasoline stations and paint shops.

Axial Flow Fan

Axial Flow Fan

The svs manufacure fan covering a wide range of air quantities and preesure from 1000 CMH to 100000 CMH up to 5mm to55m static pressure.The cost alloy aluminium /PVC impeller are statically and dynamically balanced the are available for wall mounted & duct mountaded application.

Axial flow fans are designed to force the air to flow parallel to the blades in the shaft. These fans are used for various purposes such as small cooling fans to giant fans in wind tunnels; primarily used for air conditioning and industrial process applications. This type of fans are most commonly used as ceiling fan, in automobiles for engine cooling, in computers as cooling fan preventing the machine to overheat or as a variable pitch fan where control of air pressure within the duct is required.

We at Space Ventilation Systems manufacture a wide range of axial flow fans with various air quantities and pressure ranging from 1000 CHM to 100000 CHM having 5mm to 55mm static pressure. The impellers used in these fans are made of cast alloy aluminum/ PVC which are statically and dynamically balanced. Our range of axial fans is mostly available for wall mounted and duct mounted applications. These fans are designed to maintain excellent balance between air quantity, pressure and power consumption. Axial flow fans are highly useful for the purposes such as general ventilation, fume extraction and air conditioning or other special industrial applications. Our axial fans are designed to reduce your operating costs to the minimum. We provide the most economical and efficient axial flow fans to various customers across different industries such as fertilizers, thermal power stations, textile, pharmaceuticals etc.

IMPROVED ENERGY EFFICIENCY AND INDOOR AIR QUALITY

IMPROVED ENERGY EFFICIENCY AND INDOOR AIR QUALITY

Your wallet takes a hit as well. The build-up of dirt and debris prevents the air from flowing freely throughout the ventilation system. That means it works harder and costs more to operate. Over time, the problem only gets worse. Clear the air in your home with air duct cleaning and air vent cleaning services from the NADCA certified professionals at Stanley Steemer.

It’s also important to realize that many companies limit ventilation system cleaning to the air ducts. Not Stanley Steemer. We clean your entire ventilation system, including the HVAC unit, blower, evaporator coil and accessible components, as well as the individual air ducts, from the vent covers to the main trunk line. We also remove the vent covers, clean them, and then put them back in place. From duct cleaning to vent cleaning, we clean every part of your ventilation system.

MULTI-UNIT RESIDENTIAL BUILDINGS

 MULTI-UNIT RESIDENTIAL BUILDINGS

Compact, quiet, efficient, and cost-effective, Enerboss integrated fan coils are set to transform small and multi-unit residential construction. With these units, everybody wins: Designers can plan less complicated and costly mechanical systems,  Developers will pay less per square foot and offer move livable space to buyers,  Contractors can access a suite's mechanical system in one place,  Building Owners will not have to pay to condition pressurized hallways (i.e. the entire building), and Suite Owners will not have to endure  noise and odours from hallways, but will have complete control over their own comfort AND save hundreds of dollars per year from the same energy efficient features as the Enerboss EN Series.

Enerboss Integrated Air Handlers & Fan Coils

THE RIGHT AIR HANDLER FOR ANY APPLICATION

The award-winning Enerboss sets the standard in mechanical system comfort, efficiency and versatility. With features like quiet ECM fan technology, and optional integrated H/ERV, the Enerboss saves you money and mechanical room space--avaialble in hydronic and electic versions. Also available are the less-featured PCAH and ECAH air handlers which offer the choice of PSC or ECM fans, and the design to suit any space or dollar budget! 

AIR COOLING UNIT

AIR COOLING UNIT

(CAPACITY OF UNIT 2000CHM TO 150000 CMH)
For creating comfortable working conditions for men ,machine and materials inside electrical controls rooms .CCR building ,sub station building .office areas ,Administrative buildings ,cements ,steel & other industries and also power houses.

For increasing productivity which ultimately leads to higher business, it is very important that there is comfortable atmosphere for men, machines and materials. From control rooms to office areas, cement or steel industries to power houses or cold storages, every building demands an air cooling system. We at Space Ventilation Systems are the most promising air cooling system manufacturers in India, offering humidity free and climate control technologies. We cater to a wide range of customers across different commercial or industrial applications. With a wide industrial experience and cutting edge technology we offer very high quality range of cooling units according to the diverse requirements and needs of our clients. 

Our systems are available in capacity ranging from 2000 CHM to 15000 CHM. They are highly durable and demand very low maintenance. Our air cooling units help in saving electricity as the compressors need to run for lesser time in comparison to those with bunker coils. They are compact and thus save a lot of space. This along with innovative system designs, help in saving a large quantity of ammonia gas. Air cooling unit benefits you in maintaining a uniform temperature throughout the place though increased air circulation. These systems have a strong control over the levels of humidity and the temperature of the room and fulfill the dehumidification requirements of our clients. We can confidently claim that our systems are economical, highly efficient and reliable.