20
3-90-233R24_11/13
Installation with A hot Air System
EXISTING HEA
T PUMP C
ONTR
OLS
LOW VOLTAGE 24 VAC COIL
O/A sensor terminals
in control cover
Through grommet
R2 RELAY
R1 RELAY
fac
tor
y wir
ing
to cir
cula
tor outlet
The top three screws only
on the 5 pole terminal strip
1
6
4
5
3
8
7
LOW VOLTAGE
( by installer )
New T'stat Wire
3
4
1
6
5
8
7
C
ompr
essor
Fan C
on
tr
ol
24 V
A
C
hot
24 V
A
C
com.
fac
tor
y wir
ing
HIGH VOLTAGE ( ORANGE) from control board
HIGH VOLTAGE ( N )
SPLICE
( by installer )
( by installer )
HIGH VOLTAGE ( L1 )
( by installer )
N
L
set 3° above existing t'stat
( by installer )
New T'stat Wire
Existing T'stat
set 3° below new t'stat
Existing T'stat
Wiring
( by installer )
LOW VOLTAGE
SPLICE
R
G
C
R
G
C
New T'stat
W1 O/B
Y
L
C
hange-o
ver v
alv
e
A
UX H
ea
t
Emer
genc
y H
ea
t
SPLICE
( by installer )
RED
WHITE
GREEN
1
5
3
L
O/B
W1
Y
( by installer )
L
Y
C
G R
O/B
W1
Grainger# 2XC01- Omron LY2F 24V
Grainger#2XC02-Omron LY2F 120V