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WIRING
Low ambient pressure switch S11 is wired in series with
outdoor fan relay or compressor contactor (single-stage
or speed units).
TO R" LOW
D
VOLT
TERM STRIP
K4
1
DEFROST
4
RELAY
7
TO O" LOW
VOLT TERM
STRIP
S11 LOW AMBIENT CONTROL SWITCHES
OUTDOOR FAN DIRECTLY (LINE VOLTAGE)
2
3
5
6
8
9
TO K1-1
K31 PIN 5
COMP C"
TO 24V COM
L1
REVERSING
VALVE
SEE SCHEMATIC FIGURE 4
Low ambient kits are shown with optional arrows on unit
wiring diagrams. If unit wiring diagram is not available or
does not show the low ambient kit, refer to appropriate
wiring diagram in figures 3 through 13 for wiring
connections.
REMOVE THIS WIRE
K58 LOW
AMBIENT
RELAY
1
3
4
6
7
9
FIELD WIRING
FACTORY WIRING
FIGURE 3
Page 3
S11
LOW AMBIENT
PRESSURE
SWITCH
1
REMOVE THIS
4
B4
OUTDOOR
FAN MOTOR
TO C12
TERMINAL F
WIRE
TO C12 TERM C
TO K1-1
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