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240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial
Ver. 1.00
CONFIDENTIAL
The desired level can be specified at the Lower bank of
DIPswitches (No.2, No.3 and No.4) on the computer board.
See the table below.
<Using these functions>
540 (T-H3) models
computer board
Lower bank of
DIPswitches
Indoor models of 540 (T-H3) : Propane
Level
Elevation
Output
reduction
Fan motor
speed change
DIPswitch settings
No.2
No.3
No.4
0
0 (DEFAULT)
N/A
N/A
OFF
OFF
OFF
1
Up to
2,500 ft
N/A
3 %
OFF
ON
OFF
2
Up to
5,000 ft
-8 %
5 %
ON
ON
OFF
-11 %
7 %
OFF
OFF
ON
3
Up to
7,500 ft
-14 %
9 %
ON
OFF
ON
-18 %
12 %
OFF
ON
ON
4
Up to
10,100 ft
-22 %
15 %
ON
ON
ON
Special function
N/A
-7%
ON
OFF
OFF
Indoor models of 540 (T-H3) : Natural gas
Level
Elevation
Output
reduction
Fan motor
speed change
DIPswitch settings
No.2
No.3
No.4
0
0 (DEFAULT)
N/A
N/A
OFF
OFF
OFF
1
Up to
2,500 ft
N/A
6%
OFF
ON
OFF
2
Up to
5,000 ft
-6 %
10 %
ON
ON
OFF
-9 %
14 %
OFF
OFF
ON
3
Up to
7,500 ft
-12 %
18 %
ON
OFF
ON
-15 %
22 %
OFF
ON
ON
4
Up to
10,100 ft
-18 %
26 %
ON
ON
ON
Special function
N/A
-7 %
ON
OFF
OFF
