Fig. 10—control connections – Carrier 50NQ User Manual
Page 8
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THERMOSTAT
8 SUBBASE
(SEE BELOW)
&
&
0-
0
-
B-
[£>
0-
UNIT
CONTROL WIRING
TERMINAL BOARD
0
)
-<D
0
)
<8>
-B)
COOLING AND ONE-STAGE HEATING
(without Electric Heater)
THERMOSTAT
a SUBBASE
UNIT
CONTROL WIRING
TERMINAL BOARD
ODT — Outdoor Thermostat
HR — Heater Relay
COOLING AND TWO-STAGE HEATING
(Unit equipped with Electric Heater, Supplemental
Heat, One Outdoor Thermostat)
THERMOSTAT
a
SUBBASE
UNIT
CONTROL WIRING
TERMINAL BOARD
THERMOSTAT
a SUBBASE
UNIT
CONTROL WIRING
TERMINAL BOARD
COOLING AND TWO-STAGE HEATING
(Unit equipped with Electric Heater, Supplemental
Heat, No Outdoor Thermostats)
HR — Heater Relay
ODT — Outdoor Thermostat
COOLING AND TWO-STAGE HEATING
(Unit equipped with Electric Heater, Supplemental
Heat Relay, Two Outdoor Thermostats)
Fig. 10—Control Connections