Rheem MPi 551 Series Owner's Manual And Installation Instructions page 33

Position Heat Pump Module: Position the heat pump module against the tank.
19.
Engage the tab at the bottom of the heat pump module, on the wall side of the module, into the slot

in the tank.
Align the holes in the side of the heat pump module over the three studs.

Flange Nuts: Screw the three flange nuts onto the studs to connect the wall side of the heat pump
20.
module to the storage tank.
align heat pump module over studs and screw on flange nuts
Tab: Engage the tab at the bottom of the heat pump module, on the front side of the module, into the
21.
slot in the tank.
22. Fixing Bolts: Screw in the three fixing bolts to connect the front side of the heat pump module to the
storage tank.
screw in fixing bolts to connect heat pump module to storage tank
Steps 19 and 20
Step 22
33
HEAT PUMP AND TANK ASSEMBLY