is continuing its heat pump strategy

Vattenfall is continuing its heat pump strategy focusing on system efficiency, environmental benefit and economy for both the customer and the company.
Energy and environment Why heat pumps? Energy efficiency and environmental benefit are the key drivers for heat pump application and further research and development. A simple projection of world energy consumption and dwindling energy sources in the next decades shows that society faces a major challenge. There is a general awareness of this rapidly approaching problem, but society as a whole does not seem to be responding accordingly, assuming that there is sufficient time to find solutions. However, it is

The forthcoming

The forthcoming EU 6th Framework Programme contains several new major elements compared to previous programmes. A major new feature of FP6 is the aim to bring together a critical mass of resources and skills. New means of participating, with Networks of Excellence and Integrated projects will help to pool resources and increase focus on a reduced number of priority areas. This should help to create the European research area (ERA), which is an integral part of FP6. Universities, companies and research centres have responded to a call for Expressions of Interest and submitted more than 15,000 research ideas, including at least 4 on heat pumps. In an effort to promote partnering and collaboration, the commission will publish all expressions of interest over the summer on their web site http://www.cordis.lu/fp6/eoi-instruments/ home.html. An analysis of ideas received will be made public in September 2002 and will be used as input for drafting the detailed work programmes, which form the basis for the calls for proposals to be published at the end of 2002.

Program compliance

Program compliance of all subcontractors and making customers aware when work will be subcontracted • Customer approval of any changes from original estimate or installation design • Installing improvements to meet minimum program requirements for the installation of a heat pump; also, the QCN member is responsible for installing weatherization improvements in conjunction with the heat pump installed under the program to meet minimum requirements.  If an inspector determines that more than the minimum requirements were pre-existing, additional installed improvements will not be financed. • Providing quality workmanship performed in a workman-like manner in compliance with all specifications listed in the program guidelines • Submitting a detailed invoice of the heat pump installation, which separates costs for the heat pump, ductwork, weatherization, extended warranty, programmable thermostat(s), electrical upgrades, and/or other applicable and acceptable costs • Practicing good business ethics and ensuring customer satisfaction to best of their ability, including leaving the premises in a “broom clean” condition after the installation • Honoring all service and warranty commitments made to customers
Customer Responsibilities. Customers participating in the energy right Heat Pump Plan are responsible for: • Providing a copy of a deed or other evidence of ownership of the dwelling to meet a condition of financing eligibility under the program • Entering into an agreement with a member of the QCN for the installation of a heat pump  • Notifying the distributor to arrange for the loan closing or inspection • Ensuring that the heat pump is installed to the customer’s satisfaction • Signing the Work Completion Form after the work is completed to the customer’s satisfaction

A suitable, unobjectionable means

A suitable, unobjectionable means of disposal of the ground water source heat pump discharge water shall be utilized. This may include a natural stream bed, dry well, body of water, or a recharge system. The discharge cannot enter a septic tank, drainage field, sewer system, or flow onto the property of others. − The ground water source heat pump refrigeration system heating capacity, exclusive of resistance heaters, may be sized to meet not more than 100 percent of the heating requirements of the structure at the heating indoor design conditions stated in Equipment Requirements subsection, item 2, utilizing the manufacturer's published capacities for an entering water temperature (EWT) within 10 percent of the ground water temperature of the local area. The ground water source heat pump shall also be sized to provide a minimum of 100 percent of the sensible and latent load requirements at the cooling indoor design conditions stated in Equipment Requirements section, item 2; however, the total cooling capacity shall not be more than two times the total cooling load. The gallon per minute flow rate shall be within the range as specified by the manufacturer. A suitable means shall be provided by the contractor to determine the flow rate of the installed heat pump (i.e., flow meter or pressure/temperature test ports at the heat pump). 2. Earth Coupled Heat Pumps (ECHP) − The earth coupled heat pump refrigeration system heating capacity, exclusive of resistance heaters, may be sized to meet not more than 100 percent of the heating requirements of the structure at the heating indoor design conditions stated in Equipment Requirements section, item 2, utilizing the manufacturer's published capacities for an entering water temperature of 40°F (heating). − The earth coupled heat pump shall also be sized to provide at least 100 percent of the sensible and latent load requirements at the cooling indoor design conditions stated in Equipment

Heat Pump Plan Weatherization Standards for Existing Homes

Heat Pump Plan Weatherization Standards for Existing Homes
Attic Insulation
Applicability. Attic and ceiling insulation shall be installed when the existing effective insulation value is less than R-19 or when vertical walls surrounding conditioned rooms in the attic area do not have effective existing insulation.
Material Specifications for Blocking Materials. The following materials shall be used to provide any required blocking around heat-dissipating objects, attic accesses, pull-down stairways, chimneys, vent pipes from gas- or oil-fired appliances, etc.: • Mineral fiber batts • Sheet metal • Gypsum board (sheetrock) • Wood • Other materials approved by TVA prior to their installation

Support Materials for Floor Insulation.

Support Materials for Floor Insulation. In general, support materials shall be rot-proof, rust-proof, stretch-free and strong enough not to break when affixed to the underfloor structure. • When netting and staples are used as support, netting shall be knotted, looped, woven, or heat fused at all junctions; staples shall be the type commonly used to support insulation batts.  • Wire staves shall be made of a single piece of 13-gage (0.087 inch diameter) or larger “hard drawn” steel wire, pointed at both ends. Staves shall be manufactured especially for the purpose of supporting underfloor batt or blanket insulation.
Section 2C   01/16/2007
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• Staves shall be of good quality steel with sufficient spring to return to their original shape with little or no deformation when released.  • Wire staves shall have a length between 1/2 inch to 2 inches longer than the inside joist spacing on which the staves are used.  • When the wire staves are cut to a shorter length to fit smaller joist spacings, the cut shall be on a diagonal in such a way to produce a barb that will more easily secure the wire stave into the joist.  • Wire, nylon string, or other equivalent permanent materials of sufficient strength shall be used to support the insulation material.  • Nails with small heads, such as brads or casing and finishing nails shall not be used.
Installation Requirements. The QCN member for each weatherization item covered under Floor Insulation shall be responsible for ensuring that all materials used and work done comply with the installation procedures and criteria outlined in these standards. • Preparation Work—Work identified as preparation work shall be completed prior to, or in conjunction with, installing floor insulation.

Using manufacturer's

Using manufacturer's performance data, determine the water flow rate (GPM) and the heating capacity of the installation using the measured PD and the measured EWT.
e) Determine heating capacity by using the following formula: Btuh = TD x 1.1 x CFM TD =  temperature difference between supply air and return air 1.1 =  air properties constant CFM =  Cubic feet per minute air calculated, from funnel, temperature rise, or return air method
f) Verify that system capacity is + 10% of the equipment manufacturer's rating at the test conditions.
3) Check system cooling capacity as follows: (Major)
a) Allow system to operate for at least 15 minutes
b) Measure water pressure drop (PD) between water-in and water-out test plugs at heat pump. (Use same instrument to measure both to reduce error).
c) Measure entering water temperature at water-in test plug.
d) Using manufacturer's performance data, determine the water flow rate (GPM) and the cooling capacity of the installation using the measured PD and the measured EWT

Responsibilities Distributor

Responsibilities Distributor Responsibilities. Distributors participating in the energy right Heat Pump Plan are responsible for the following: • Arranging for all program-required inspections • Coordinating QCN member participation with TVA Customer Service Center personnel. If the distributor believes a QCN member participating in the program in their area has violated program criteria, the distributor may collect any evidence to support the claim, and may present such evidence to the appropriate Customer Service Center TVA personnel • Notifying all QCN members participating in the program in their service area of how the heat pump program will operate in their area, if any incentives or rebates are available and what percentage of inspections will be performed Contractor (QCN) Responsibilities. TVA will maintain a list of heat pump contractors who apply and qualify for membership in the Quality Contractor Network (a group of contractors listed by TVA). Only QCN members shall participate in the energy right Heat Pump Plan. If a QCN member, or representative, has any questions about weatherization measure(s), installation criteria, inspection procedures, or forms, the inspector should be notified prior to installation.

Switching

Switching off indoor fan during defrost (for units with a single compressor) This module provides the option of stopping the indoor fan during the defrost cycle. The option is only for cases where it is not possible to fit an auxiliary electric heater. - With the JP-19 bridge in place (as sent out from the factory) the indoor fan will continue operating during defrost. - With the JP-19 bridge open (jobsite modification) the indoor fan is switched off. Switch-off delay of the indoor fan (for single compressor units) The indoor fan will continue functioning for one minute more after the stop order. This uses up the energy accumulated in the inside interchanger and saves energy. This option can be deactivated at the jobsite, if preferred, by leaving the module JP-20 bridge open. Miscellaneous. - Connector for computer switching. - Possibility of lowering timer to 2 minutes. - Buttons