Common use of Use of Heat Recovery from Cooling Clause in Contracts

Use of Heat Recovery from Cooling. 1. Developers that plan to employ cooling systems within their buildings may wish to utilize heat recovery systems. This practice is considered suitable under the following conditions:  Passive heat recovery systems (i.e. systems that do not use heat pumps) may be used continuously;  Active heat recovery systems (i.e. systems that use heat pumps to recover heat) should be used only when the building is in cooling mode;  Use of heat pump compressors in heating-only configurations is not acceptable;  Use of heat recovery systems should not result in changes to the standard approach to servicing buildings from the NDES; and  Heat recovery systems should be used only to improve overall building energy performance, and not to displace heat that would otherwise be purchased from the district energy utility.

Use of Heat Recovery from Cooling. 1. Developers that plan to employ cooling systems within their buildings may wish to utilize heat recovery systems. This practice is considered suitable under the following conditions:  • Passive heat recovery systems (i.e. systems that do not use heat pumps) may be used continuously;  • Active heat recovery systems (i.e. systems that use heat pumps to recover heat) should be used only when the building is in cooling mode;  • Use of heat pump compressors in heating-only configurations is not acceptable;  • Use of heat recovery systems should not result in changes to the standard approach to servicing buildings from the NDES; and  • Heat recovery systems should be used only to improve overall building energy performance, and not to displace heat that would otherwise be purchased from the district energy utility.