Fig. 6—control circuit connections, Fig. 6—control circuit connections 5 – Carrier 38QN User Manual
Page 5
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THERMOSTAT
SUBBASE
HH93AZIT3
OR HH93AZI75
40AQ OR 40QB FAN COIL
COOLING CONTROL KIT
TERMINAL BOARD
38QN
TERMINAL
BOARD
(38QN/40AQ 0R40QB WITHOUT ELECTRIC HEATER)
THERMOSTAT
SUBBASE
HH93AZI73 OR
HH93AZI75
40AQ OR 40QB
ELECTRIC HEATER
TERMINAL BOARD
38QN
TERMINAL
BOARD
COOLING AND TWO-STAGE HEATING
(38QN WITH 40FS/28HQ.VQ
EQUIPPED WITH ELECTRIC HEATER;
SUPPLEMENTAL HEAT, TWO OUTDOOR THERMOSTATS)
A87154
THERMOSTAT
SUBBASE
HH93AZI73
ORHH93AZI75
40AQ OR 40QB
ELECTRIC HEATER
TERMINAL BOARD
38QN
TERMINAL
BOARD
COOLING AND TWO-STAGE HEATING
(38QN WITH 40AQ,40QB OR 40FS/28HQ,VQ
EQUIPPED WITH ELECTRIC HEATER;
SUPPLEMENTAL HEAT, NO OUTDOOR THERMOSTATS)
B
TH ERMOSTAT H H07AT17I
40DQ ELEC. HEATER
WITHHH93AZI73(AUT0. (ALL MODELS)
38QN
CHANGEOVER) OR HH93AZI75 LOW VOLTAGE TERM.
TERMINAL
(MAN. CHANGEOVER) SUBBASE. SPLICE CONNECTIONS BOARD
SUPPLEMENTAL HEAT, NO OUTDOOR THERMOSTATS)
A87152
A87156
THERMOSTAT
SUBBASE
HH93AZI73
OR HH93AZI75
40AQ OR 40QB
ELECTRIC HEATER
TERMINAL BOARD
380N
TERMINAL
BOARD
(38QN WITH 40AQ,40QB OR 40FS/28HQ.VQ
EQUIPPED WITH ELECTRIC HEATER;
SUPPLEMENTAL HEAT, ONE OUTDOOR THERMOSTAT)
ODT — Outdoor Thermostat
SHR — Supplemental Heat Relay
------------ Factory Wiring
------------ Field Wiring
'Transformer (60 va) located in cooling control kit or electric
heater.
fRemove factory-installed jumper (Connection B) when
installing outdoor thermostats (ODT).
A87155
Fig. 6—Control Circuit Connections
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