36
C16e.
Relay, SPDT (single pole/
double throw) is used on Mod-
els 39424.601, 39115.626,
39125.601, 39335.601 and
39335.636.
On Model 39424.601 it is used to complete 115 volt AC
circuit to Circuit 2 compressor. On Models
39115.626
,
39125.601
,
39335.601
and
39335.636
it is a furnace blower
relay.
The relay has a 115 volt AC coil.
Terminals 1 and 3 are the coil terminals. When the coil
(terminals 1 and 3) is NOT energized (no power to termi-
nals 1 and 3), continuity should exist between terminals 4
to 5; and no continuity between terminals 2 to 4.
When the coil (terminals 1 and 3) is energized (power to
terminals 1 and 3), continuity should exist between termi-
nals 2 to 4 and no continuity between terminals 4 to 5.
Section C - Components, cont’d.
C16f.
Relay, SPDT (single pole/
double throw) is used on
Models 39325.XXX and
39335.XXX.
On Model 39325.XXX it is used to complete the 115 volt
AC circuit to the reversing valve.
On Model 39335.XXX is used to complete the 115 volt AC
circuit to the reversing valve and to the furnace blower re-
lay coil. The relay has a DC volt coil.
Terminals 1 and 3 are the coil terminals. When the coil
(terminals 1 and 3) is NOT ener-
gized (no power to terminals 1 and
3), continuity should exist between
terminals 4 to 5; and no continuity
between terminals 2 to 4. When the
coil (terminals 1 and 3) is energized
(power to terminals 1 and 3), conti-
nuity should exist between
terminals 2 to 4 and no continuity
between terminals 4 to 5.
FIG. C27
C16g.
Relay, SPDT (single pole/
double throw) is used on
Models 39115.XXX, 39325.XXX,
39335.XXX and 39424.601.
On Models 39115.XXX, it controls HIGH and LOW FAN
speeds. On Models 39325.XXX, 39335.XXX and
39424.601, it opens the control circuit for the fan motor
when the coil is energized.
Note:
Incorrect wiring to the thermostat can energize the
relay coil on heat pump models 39325.XXX, 39335.XXX
and 39424.601.
The relay has a DC volt coil. To check the relay, first verify
all AC volts have been turned off to the unit.
Next, remove the wires from COM and NC terminals. Verify
the relay coil is not energized (no DC power). Continuity
should exist between terminals COM and NC and no con-
tinuity between terminals COM and NO. Next, energize the
relay coil with DC volts (10 to 16). Continuity should exist
between terminals COM and NO and no continuity between
COM and NC. If the above checks are correct, the relay is
good - DO NOT replace it. If the above checks are not
correct, the relay is defective and should be replaced.
FIG. C28
C16h.
Relay (9T91/120V)(SPDT)
The relay is used on basement air conditioner Model 39224
and basement heat pump Model
39424 ONLY
.
The relay has five terminals. Two terminals are not identi-
fied; they are the coil terminals. When the coil is not ener-
gized (no power to the coil terminals), continuity should
exist between COM and NC and no continuity between
COM to NO.
When the coil is energized (power to the coil terminals),
continuity should exist between COM to NO and no conti-
nuity between COM to NC.
FIG. C29
FIG. C26
Manual
Compliments
of
Northwest
RV
Supply
Printed
From
http://www.nwrvsupply.com
