Rheem 55027500 Service Instructions Manual page 24

Component Tests 10 - 12
Ensure power is isolated before conducting this test
Ensure power is isolated before conducting this test
Ensure power is isolated before conducting this test
TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C
Date of Issue: 5/11/05
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Test 10
Test 11
Test 12
23
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled".
550 Series only
Using a multimeter set on the x1
resistance scale,
between terminal 5 and terminal
6 of the terminal strip.
Normal resistance should be
open circuit when the evaporator
temperature is above 3 degrees
550 Series only
Using a multimeter set on the x1
resistance scale,
between terminal 5 and terminal
6 of the terminal strip.
Normal resistance should be
less than 1 ohm when the
evaporator temperature is below
–3.5ºC degrees.
550 Series only
Using a multimeter set on the
x1000 resistance
measure between terminal 6
and neutral of the terminal strip.
Normal resistance is 2 kilo-
ohms
measure
measure
scale,