Aerco KC Series Operation And Maintenance Manual

MAINTENANCE
6-4
3. Shut the water inlet, outlet and recirculation valves to the unit.
4. Open the drain valve on the unit.
5. Slowly open the pressure relief valve to allow air-flow into the unit.
6. Fully drain the unit.
7. Disconnect electrical power from the unit.
8. Remove the 4 screws holding the BTU transmitter pump to the impeller housing. Remove and set the
pump aside, (See Fig. 6.3).
NOTE:
It is not necessary to disconnect the electrical wires to the pump.
Figure 6.3
BTU Transmitter Pump Disassembly
9. Using a 5/8” and 9/16” wrench, loosen the 4 compression fittings holding the lower tubing assembly in
place, (See Fig. 6.4).
COMPRESSION
FITTINGS
LOWER TUBING ASSEMBLY

Aerco KC Series Specifications

General

Brand	Aerco
Model	KC Series
Category	Water Heater
Language	English