T-H2-DV/T-H2-OS Service Manual
Ver. 1.01
66
CONFIDENTIAL
12-5. Dipswitch settings
The computer board in the T-H2-DV is the same as one in
the T-H2-OS. There are two banks of dipswitches (right
and left bank) on the computer board. The left 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 right bank of dipswitches
No.
Functions
ON position
OFF position
1
Changes unit of displayed temperature
˚
C
˚
F
(Default)
2
3
N/A
N/A
N/A
(Default)
4
Activation of Individual operation mode
See Section 12-11
Enable
(Default)
Disable
5
6
Pump mode
7
The number of priority unit in a T-H2-DV or T-H2-OS
Two
priority units
One
priority unit
(Default)
8
Deactivation of the freeze protection firing system
Enable
Disable
(Default)
9
Deactivation of the exhaust temperature control
(This switch is for a specialized purposes only)
Enable
Disable
(Default)
10
Parent/Child setting on Easy-link systems
Parent
Child
(Default)
Right bank of dipswitches
Left bank of dipswitches
LP
1
2
3
4
5
6
7
8
MODE
N O
STORAGE
Recirculation
Control
Storage Tank
Circulation
Control
Normal
Control
(Default)
Energy
Conserving
Recirculation
9
1
0
RE-CIR
LP
1
2
3
4
5
6
7
8
MODE
N O
STORAGE
9
1
0
RE-CIR
LP
1
2
3
4
5
6
7
8
MODE
N O
STORAGE
9
1
0
RE-CIR
LP
1
2
3
4
5
6
7
8
MODE
N O
STORAGE
9
1
0
RE-CIR