21
W415-0547 / B / 05.08.06
OPTIONAL SWITCH / WIRING DIAGRAM
The on/off switch is located on the back of the
GDS25 at the top right corner. For ease of acces-
sibility, an optional remote wall switch or millivolt
thermostat may be installed in a convenient location.
The recommended maximum lead length depends on
wire size:
WIRE SIZE
MAX. LENGTH
14
gauge
100
feet
16 gauge
60 feet
18 gauge
40 feet
Route 2-strand (solid core) wire through the electri-
cal hole located at the bottom left side of the unit.
Connect the wires from the wall switch / thermostat
to the two brown wires extending from the fi replace
mounted ignition control box.
Purge all gas lines with the glass door of the fi replace open.
Assure that a continuous gas fl ow is at the burner before closing the door.
B
URNER
S
WITCH
/ W
ALL
T
HERMOSTAT
B
ATTERY
H
OLDER
G
AS
V
ALVE
P
ILOT
A
SSEMBLY
I
GNITION
M
ODULE
P
ILOT
G
AS
L
INE
Orange
(I)
[through
independent
conduit]
Yellow
(S)
[through
Gas line
conduit]
AC A
DAPTOR
B
ATTERY
R
ELAY
Red (3 Volt)
Red
Black
W
IRE
H
ARNESS
N
OTE
: W
IRE TAGS
ARE BRACKETED
Brown
(SWI)
Black
(-)
Red
(+)
Green x2
(TH)
Orange x2
(THTP)
Black
Yellow
Blue
Black
(TP)
M
ODULE
P
LUG
R
ELAY
P
LUG
Black
Green
Orange
Black (12 Volt)
To Accent Light &
Accent Light Switch