– 34 –
All Zoneline heat pump models have two outdoor
thermistors.
One outdoor thermistor is attached to the outdoor
coil, and one outdoor thermistor is set into the
base assembly, enabling it to monitor outdoor air
temperature.
Outdoor Thermistors Resistance (ohms)
All 265 volt Zoneline models have two indoor
thermistors which are attached to the indoor coil,
and an outlet air thermistor attached to the air
GHÀHFWRU
The indoor air thermistor is mounted on the front of
the coil to sample the incoming room air.
The indoor coil thermistor is mounted on the right
side of the coil in a copper well to sample the coil
temperature.
The outlet air thermistor is mounted on the air
GHÀHFWRUWRVDPSOHWKHRXWJRLQJDLUWHPSHUDWXUH
°F
AIR
COIL OUTLET
10
63,260
94,900
296,800
30
34,620
51,940
169,800
32
32,860
49,330
161,500
50
19,970
29,960
99,480
70
11,950
17,930
59,700
90
7,320
10,970
36,990
°F
AIR
COIL
10
28030
28030
30
15340
15340
32
14570
14570
50
8850
8850
70
5300
5300
90
3280
3280
Thermistors Indoor
Indoor Thermistor Resistance (ohms)
Thermistors Outdoor