103904-UIM-B-0505
Unitary Products Group
11
WIRING DIAGRAMS
“Y” Terminal on Air Handler Control Board must be connected for full CFM and applications
requiring 60 Second Blower Off Delay for SEER enhancement.
1
Optional Dehumidification Humidistat contacts open on rise
Remove Humidistat Jumper on CFM selection board, Refer to CFM Selection Graphic
( ) Indicates convenience terminal - Not functional in this application.
“Y” Terminal on Air Handler Control Board must be connected for full CFM and applications
requiring 60 Second Blower Off Delay for SEER enhancement.
1
Optional Dehumidification Humidistat contacts open on rise
Remove Humidistat Jumper on CFM selection board, Refer to CFM Selection Board Graphic
( ) Indicates convenience terminal - Not functional in this application.
“Y” Terminal on Air Handler Control Board must be connected for full CFM and applications
requiring 60 Second Blower Off Delay for SEER enhancement.
1
Optional Dehumidification Humidistat contacts open on rise
Remove Humidistat Jumper on CFM selection board, Refer to CFM Selection Board Graphic
( ) Indicates convenience terminal - Not functional in this application.
For Heat Pump Applications - Remove Heat Pump Jumper on CFM selection board, Refer to
CFM Selection Board Graphic.
To change quantity of heat during HP defrost cycle - Reverse connections at W1 & W2 on
Air Handler Control Board
“Y” Terminal on Air Handler Control Board must be connected for full CFM and applications
requiring 60 Second Blower Off Delay for SEER enhancement.
1
Optional Dehumidification Humidistat contacts open on rise
Remove Humidistat Jumper on CFM selection board, Refer to CFM Selection Board Graphic
( ) Indicates convenience terminal - Not functional in this application.
For Heat Pump Applications - Remove Heat Pump Jumper on CFM selection board, Refer to
CFM Selection Board Graphic.
To change quantity of heat during HP defrost cycle - Reverse connections at W1 & W2 on
Air Handler Control Board
2
S1 & S2 Bonnet Sensor connection for add-on system.
FIGURE 12: Control Wiring-N1VS Air Handler
FIGURE 13: Control Wiring-N1VS Air Handler
N1VS AIR HANDLER CONTROL WIRING
1
C
C
C
Y
Y
Y
R
R
W1
W1
W2
W2
G
G
CFM BOARD
(O)
(X/L)
HUM
HUMIDISTAT
Y1
(Y2)
THERMOSTAT
AIR HANDLER
BOARD
1-STAGE
AIR CONDITIONING
Typical A/C - Cooling Only Applications
N1VS AIR HANDLER CONTROL WIRING
1
C
C
C
Y
Y
Y
R
R
W1
W1
W2
W2
G
G
CFM BOARD
(O)
(X/L)
HUM
HUMIDISTAT
Y1
(Y2)
THERMOSTAT
AIR HANDLER
BOARD
1-STAGE
AIR CONDITIONING
Typical A/C with Electric Heat Applications
FIGURE 14: Control Wiring-N1VS & 10, 12, 14 SEER UPG Heat Pump FIGURE 15: Control Wiring-N1VS & E4FH York UPG Heat Pump
C
Y
O
G
E
W
R
X / L
C
Y
(O)
G
W1
W2
R
HUM
(X / L)
Y1
(Y2)
C
Y
O
W1 / 66
W
R
X / L
HUMIDISTAT
1
CFM BOARD
Jumper may
be required
*
*
THERMOSTAT
AIR HANDLER
BOARD
1-STAGE
HEAT PUMP
CONTROL WIRING - N1VS & 10, 12, & 14 SEER UPG HEAT PUMP SYSTEMS
Single Stage H/P with Time Temp Defrost Board
Single Stage H/P with Demand Defrost Board
C
Y
O
G
E
W
R
X / L
C
Y
(O)
G
W2
W1
R
HUM
(X / L)
Y1
(Y2)
Y
O
W2 / 60
HUMIDISTAT
1
CFM BOARD
THERMOSTAT
AIR HANDLER
BOARD
1-STAGE
HEAT PUMP
CONTROL WIRING - N1VS & E4FH YORK UPG HEAT PUMP SYSTEMS
Single Stage H/P with York Guard V - Demand Defrost Board
S1
S2
2
2
B or C
W1 / 66
W
R
X or L