Icm2 Motor With Vsp3−1 - Lennox G32V Series Service Literature

120V to the motor must not be interrupted. All connections for check out will be from the volt-
age source below (battery or 24V) to plug J46, after disconnecting from blower control board.
CHECK−OUT PROCEDURE USING BATTERY
An ordinary 9 volt battery with maximum DC
20volts is recommended. A 9 volt battery will
last for about one day of normal operation.
LOW COOL SPEED
1 2 3 4 5 6 7 8 9 10 11 12 13
J46
1 Disconnect power to unit.
2 Disconnect plug J46 from P46 located on the
blower control board.
3 Connect voltage source as shown above.
4 Turn on power to unit. Blower should operate
at low cool speed.
HIGH COOL SPEED
1 2 3 4 5 6 7 8 9 10 11 12 13
5 Disconnect power to unit.
6 Connect voltage source as shown above.
7 Disconnect Y" on ignition control AND re-
move connection from Y2" on TB1 in control
box. Connect a separate wire between the −
side of the battery and BOTH Y" on the igni-
tion control and Y2" on TB1.
8 Turn on power to unit. Blower should operate
at high cool speed.
LOW HEAT SPEED
1 2 3 4 5 6 7 8 9 10 11 12 13
J46
To W" on ignition control board. !
9 Disconnect power to unit.
10 Connect voltage source as shown above.
11 Disconnect W" terminal on ignition control
board and connect a separate wire between
W" and + side of battery.
12 Turn on power to unit. Blower should operate
at low heat speed.
HIGH HEAT SPEED
1 2 3 4 5 6 7 8 9 10 11 12 13
J46
To W2" on TB1 !
13 Disconnect power to unit.
14 Connect voltage source as shown above.
15 Disconnect W2" on TB1 in control box and
connect a separate wire between W2" and +
side of battery.
16 Turn on power to unit. Blower should operate
at high heat speed.
ICM−2 WITH VSP3
CHECK−OUT PROCEDURE USING 24V SOURCE
Unit transformer T1 with a maximum AC 30 volts
may be used in lieu of a battery. If transformer T1
is used, double check all wiring connections be-
fore placing unit back in operation.
To Y2" on TB1.!
To Y" on ignition control. !
Page 84
LOW COOL SPEED
1 2 3 4 5 6 7 8 9 10 11 12 13
J46
C
R 1− Disconnect power to unit.
2− Disconnect plug J46 from P46 located on the
blower control board.
3− Disconnect C and R from ignition control
board.
4− Disconnect Y" from ignition control and con-
nect a separate wire between R" on the
transformer and Y" on the ignition control.
5− Connect voltage source as shown above.
6− Turn on power to unit. Blower should operate
at low cool speed.
HIGH COOL SPEED
1 2 3 4 5 6 7 8 9 10 11 12 13
J46
C
R
7− Disconnect power to unit.
8− Connect voltage source as shown above.
9− Disconnect Y2" on TB1 in control box and
connect a separate wire between R" on
transformer and Y2" on TB1.
10− Turn on power to unit. Blower should oper-
ate at high cool speed.
LOW HEAT SPEED
1 2 3 4 5 6 7 8 9 10 11 12 13
J46
To W" on on ignition control. !
C
R
11− Disconnect power to unit.
12− Connect voltage source as shown above.
13− Disconnect W" from ignition control and
connect a separate wire between R" on
transformer and W" on the ignition control.
14− Turn on power to unit. Blower should operate
at low heat speed.
HIGH HEAT SPEED
1 2 3 4 5 6 7 8 9 10 11 12 13
J46
C
R
15− Disconnect power to unit.
16− Connect voltage source as shown above.
17− Disconnect W2" from TB1and connect a
separate wire between R" on transformer
and W2" on TB1.
18− Turn on power to unit. Blower should operate
at low heat speed.
To Y" on ignition control. !
To Y2" on TB1.!
To W2" on TB1 !