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// CODE SNIPPET

A5.207.2.4.7 Hydronic Heat Pump (WLHP) Controls

Los Angeles Green Building Code > A6.1 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4] > A5.207 [OSHPD 1, 2 & 4] HVAC Design, Equipment and Installation > A5.207.2 Space Conditioning Systems > A5.207.2.4 Hydronic System Measures > A5.207.2.4.7 Hydronic Heat Pump (WLHP) Controls
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Hydronic heat pumps connected to a common heat pump water loop with central devices for heat rejection and heat addition shall have controls that are capable of providing a heat pump water supply temperature dead band of at least 20°F between initiation of heat rejection and heat addition by the central devices.

Exception: Where a system loop temperature optimization controller is used to determine the most efficient operating temperature based on real-time conditions of demand and capacity, dead bands of less than 20°F shall be allowed.

Related Code Sections


A5.207.2.4.7 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4], Hydronic Heat Pump (WLHP) Controls
Hydronic heat pumps connected to a common heat pump water loop with central devices for heat rejection and heat addition shall have controls ...
Los Angeles Green Building Code > A6.1 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4] > A5.207 [OSHPD 1, 2 & 4] HVAC Design, Equipment and Installation > A5.207.2 Space Conditioning Systems > A5.207.2.4 Hydronic System Measures > A5.207.2.4.7 Hydronic Heat Pump (WLHP) Controls
A5.207.2.4.7 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4], Hydronic Heat Pump (WLHP) Controls
Hydronic heat pumps connected to a common heat pump water loop with central devices for heat rejection and heat addition shall have controls ...
Los Angeles Green Building Code > A6.1 — Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4] > A5.207 [OSHPD 1, 2 & 4] HVAC Design, Equipment and Installation > A5.207.2 Space Conditioning Systems > A5.207.2.4 Hydronic System Measures > A5.207.2.4.7 Hydronic Heat Pump (WLHP) Controls
1214.0 Hydronics, Pressure and Flow Controls
with the manufacturer's instructions. A means for balancing and flow control shall include the piping design, pumping equipment, or balancing devices ...
Los Angeles Mechanical Code > 12 Hydronics > 1214.0 Pressure and Flow Controls
1208.0 Hydronics, Circulators and Pumps
Circulators and pumps shall be selected for their intended use based on the heat transfer fluid, intended operating temperature range and pressure ...
Los Angeles Mechanical Code > 12 Hydronics > 1208.0 Circulators and Pumps
1214.2 Hydronics, Low-Water Control
a low-water control is integral with the heat source as part of the appliance's integrated control and is listed for such use, a separate low-water ...
Los Angeles Mechanical Code > 12 Hydronics > 1214.0 Pressure and Flow Controls > 1214.2 Low-Water Control
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