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295421-YTG-B-0707
12 Unitary Products Group
FIELD WIRING CONNECTIONS - COOLING MODELS WITH ELECTRIC HEAT WIRING
FIELD WIRING CONNECTIONS - SINGLE STAGE HEAT PUMP
NOTES:
1. “Y” Terminal on Air Handler Control Board must be connected for full CFM and applications requiring 60 second Blower Off Delay
for SEER enhancement.
2.
1
Optional Dehumidification Humidistat contacts open on rise.
3. For F4FV model - Remove Humidistat Jumper on CFM Selection Board - if used.
4. For F4FV model - For Heat Pump Applications - Remove Heat Pump Jumper on CFM Selection Board.
5. To change quantity of heat during HP defrost cycle - Reverse connections at W1 and W2 on Air Handler Control Board.
THERMOSTAT
AIR HANDLER
BOARD
1-STAGE
AIR CONDITIONING
RR
W1
W2
C
W2
Y
C
HUMIDISTAT
Air Handler Control Wiring
Typical A/C - Cooling only Applications
Y
Y
G
G
W1
O
C
HUM
X
Y1
Y2
CFM selection
board only on
F4FV model
1
Air Handler Control Wiring
Typical A/C with Electric Heat Applications
THERMOSTAT
AIR HANDLER
BOARD
1-STAGE
AIR CONDITIONING
RR
W1
W2
C
W2
Y
C
HUMIDISTAT
Y
Y
G
G
W1
O
C
HUM
X
Y1
Y2
CFM selection
board only on
F4FV model
1
Field
Installed
Jumper -
If Required
NOTE:
Dehumidification
control connection
(”Humidistat” jumper on
CFM selection board
tb d)
1
NOTE:
Dehumidification
control connection
(”Humidistat” jumper on
CFM selection board
tb d)
1
F* SERIES F* SERIES
THERMOSTAT
AIR HANDLER
BOARD
HEAT PUMP
HUMIDISTAT
1
R
R
R
Y
Y
Y
G
G
E
W1
W1 Out
W2
W2
O
O
O
C
C
C
L
X/L
W1
W
HUM
X
Y1
Y2
CFM selection board
only on F4FV model
NOTE:
Dehumidification control connection
(”Humidistat” jumper on CFM selection
board must be removed)
1