Heat & Glo MLT-GEMB Installation Instructions
Figure A
MLT-GEMB
- Installation Instructions -
For use with the following controls:
WSK-ML T or other wall thermostats
SCREWS
Disconnecting the Wall Switch Module
1. Remove and discard control panel by removing 2 screws
(see Figure A).
The following step numbers are referenced within
Figures B through E.
2. Unplug 3V adapter from the wall switch module (see
Figure B).
3. Unplug wire harness from ignition module (see Figure B).
4. Unplug the IPI wire assembly from the wall switch module
(see Figure B).
5. Unplug the wall switch module power cable from Junction
box (see Figure B).
6. Unplug fan from the wall switch module (see Figure B).
7. Unplug black battery back-up wire from the wall switch
module (see Figure B).
Disconnecting the IPI wire harness
9. Unplug green wire from valve (see Figure B).
10. Unplug orange wire from valve (see Figure B).
11. Unplug red battery back-up wire from the IPI wire
assembly (see Figure B).
12. With a 1/4" nut driver, disconnect black ground wire
from firebox leg (see Figure B).
13. Discard old IPI wire harness.
14. Disconnect red, green and white wall switch wires and
remove wall switch module.
8. Unplug black wire on IPI harness from the wall switch
module (see Figure B).
Printed in U.S.A. Copyright 2005
Heat & Glo, 20802 Kensington Boulevard, Lakeville, MN 55044
370-931D 12/05
1
IGNITION MODULE 3 VAC
WIRE HARNESS
BLK
Z
INTERMITTENT PILOT IGNITOR
ORG
WHT
BLOWER
RED
BLK
11
^
IPI BAT T E RY PACK
_
[
ORG
a
VALVE
13
12
GROUND TO
FIREPLACE
LEG
`
GRN
Y
14
WALL SWITCH MODULE
TRANSFORMER
3 VAC
WALL SWITCH
GROUND TO
FIREPLACE
CHASSIS
Figure B. IPI Wiring Diagram - Current
]
\
JUNCTION BOX
2
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