Rheem 325 II Series Service Instructions Manual page 50

Component Tests 6 and 7
300 kPa
TM077: 325 & 410 Series II Heat Pump Service Instructions
Rev 00: Issued April 2014
This document is stored and maintained electronically by
Test 6
Disconnect the element wire from
terminal 5 of the thermostat and using
a multimeter set on the resistance
(ohms) scale, measure between the
two element wires.
Normal resistance for the element is:
1.8kW: 29Ω – 35Ω
2.4kW: 22Ω – 26Ω
3.6kW: 15Ω – 17Ω
Test 7
Fit gauges to the suction (low) side
access valve and observe the suction
pressure.
The suction pressure is dependent on
ambient
suction pressure range is typically
between 200 – 600kPa:
200kPa @ 10°C ambient
600kPa @ 45°C ambient
A suction pressure of less than
200kPa may indicate a refrigerant
leak or a malfunctioning TX valve.
Note: Refer to the Refrigerant Charge
section on
information on refrigerant charge and
refrigerant charge fault indications.
Service. All printed copies are deemed uncontrolled.
conditions, however
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