103904-UIM-B-0505
Unitary Products Group
13
“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
FIGURE 20: Control Wiring-N1VS & New UPG HP Systems
FIGURE 21: Control Wiring-N1VS & New UPG HP Systems
CONTROL WIRING - N1VS & NEW UPG HP SYSTEMS
1
Single Stage H/P with York Guard VI Board & Copeland “Ultra Tech”
Conventional Application - Not Hot Heat Pump
THERMOSTAT
AIR HANDLER
BOARD
2-STAGE SCROLL
HEAT PUMP
HUMIDISTAT
C
Y
O
G
E
W
R
X/L
C
Y
(O)
G
W2
W1
R
HUM
(X/L)
Y1
(Y2)
C
Y1
O
BS
W2 OUT
W1 OUT
W
R
BS
X/L
Y2 OUT
Y2
CONTROL WIRING - N1VS & NEW UPG HP SYSTEMS
Two Stage H/P with York Guard VI Board & Copeland “Ultra Tech”
’
THERMOSTAT
AIR HANDLER
BOARD
2-STAGE SCROLL
HEAT PUMP
HUMIDISTAT
1
C
O
G
E
W
R
X/L
Y1
Y2
C
Y
(O)
G
W2
W1
R
HUM
(X/L)
Y1
(Y2)
C
Y2 OUT
O
BS
W2 OUT
W1 OUT
W
R
BS
X/L
Y1
Y2
CFM BOARD
