T-D2-IN / T-D2-OS Service Manual
Ver. 1.00
53
CONFIDENTIAL
12-5. Dipswitch settings
The T-D2-IN shares the computer board with the T-D2-OS. The
computer board has two bank of dipswitches: “upper” and
“lower”. The upper bank has certain special functions as shown on
the following table and generally should not need adjustment.
Carefully verify the functions of each dipswitch before changing
any settings.
The functions of the upper bank of dipswitches
No.
Functions
ON position
OFF position
1
Gas type
Propane
Disable
2
Natural gas
Disable
3
Allow adjustments of fan motor speed
(Changing the FM speed is similar to changing the
manifold pressure. See section 12-13)
Enable
Disable
(Default)
4
5
FM+, FM++ and FM+++
(FM speed is increased automatically. See section 12-10)
No. 4
OFF position
ON position
No. 5
OFF position
0 %
+6 %
ON position
+12 %
+18 %
No. 5
OFF position
ON position
No. 6
OFF position
0 %
+4 %
ON position
+8 %
+12 %
6
N/A
N/A
N/A
(Default)
Upper bank of dipswitches
Lower bank of dipswitches
T-D2-IN
T-D2-OS
