Residential Hybrid Electric Heat Pump Water Heater Use and Care Guide
•
19
INS
TALLA
TION
Temperature Unit
Indication Light
°F
°C
DAYS
Display Segment
Operational Mode
Indication Light
Temperature Up
(Increase) Button
Temperature Down
(Decrease) Button
Mode/Enter
Button
Vacation Time Indication
Figure 26 - User Interface Module (UIM) Display
xxxxx
xxxxx
xxxxx
xxxxx
Vacuum Relief Valve
(when required by local code)
Cold Water
Inlet Valve
Cold Water
Inlet
Pressure Reducing Valve (PRV)
should be installed where the water
supply enters the residence.
When installed PRVs create a
closed water system, a thermal
expansion tank must be installed.
*** If an adequate drain is not available for the condensate drain lines then a condensate pump must be used. DO NOT discharge the condensate drain
lines into the metal drain pan.
In a closed system, use a
thermal expansion tank.
See “Water Pressure/
Thermal Expansion”
section.
12 in/300 mm
Maximum Air Gap
Shut-off Valve
(Cold)
***Primary Condensate Drain (3/4” PVC)
Tempered Water to Fixtures
**Optional Mixing Valve - Follow the
Mixing Valve’s Manufacturer’s Installation
Instructions. (Set to 120°F / 48°C)
Untempered Water Outlet
Shut-off Valve (Hot)
*Union
Drain Line 3/4”
ID Minimum
Metal Drain Pan
2.5 in/64 mm
Depth Maximum and
2 in/50 mm wider than
the water heater.
Discharge Pipe
(Do Not Cap or Plug)
Temperature and
Pressure Relief Valve
Union
Drain
Cold
(Inlet)
Hot
(Outlet)
Optional Heat Trap Piping
1/2” Flexible
Secondary
Condensate
Tubing
*Union
**Use a heat trap when installing a mixing valve near the water heater.
*If copper piping is used, unions must be dielectric at inlet and outlets.
Union
Figure 27 - Completed Water System Piping
INSTALLATION
