29
IOM, XT Models
Enertech Global
Figure 10: Water Heater Connection Kit Assembly for
Bottom of Water Heater
Connection to Hot
Water Tank
Brass Tee
Adapter to Unit
Water Line
Drain
Copper Tee
For Domestic
Cold Water In Line
(installed within 12”
from top of tank)
NOTE:
Drawing shown vertically for detail. Fitting installs horizontally into hot water tank.
Desuperheater circuits are NOT to be connected to gas water heaters!
Section 6: Desuperheater Installation
13. Install an air vent fitting at the highest point of
the line from step 13 (assuming it’s the higher of
the two lines from the heat pump to the water
heater).
14. Shut off the valve installed in the desuperheater
line close to the tee in the cold water line. Open
the air vent and all shut off valves installed in the
“hot water hot”.
15. Turn the water supply to the water heater on. Fill
water heater. Open highest hot water faucet to
purge air from tank and piping.
16. Run interconnecting ½” copper pipe from the
HOT WATER IN on the heat pump, to the copper
tee in the cold water line.
17. Flush the interconnecting lines, and check for
leaks. Make sure air vent is shoutoff when water
begins to drip steadily from the vent.
18. Loosen the screw on the end of the
despuerheater pump to purge the air from the
pump’s rotor housing. A steady drip of water
will indicate the air is removed. Tighten the
screw and the pump can be connected to the
contactor or teminal block.
19. Install 3/8” closed cell insulation on the lines
connecting the heat pump to the water heater.
20. Reconnect electricity to water heater.