T-K3 Service Manual
Ver. 1.05
47
CONFI DENTIAL
12-4. Dipswitch settings
There are tw o banks of dipsw itches (upper and low er
bank) on the T-K3 computer board. The upper bank
has certain special functions as show n on the
follow ing table and generally should not need
adjustment. Carefully verify the functions of each
dipsw itch before changing any settings.
The functions of the upper bank of dipswitches
No. Functions ON position OFF position
1 Gas type Propane Natural gas
2 Allow adjustments of fan motor speed
(Chang ing the FM speed is similar to changing the manifold pr essure.)
Enable Disable
(Default)
3 Changing the T-K3’s ON/OFF mode
(See Section 12-6 for details)
Continuous
mod e
Inter mittent
mode (Default)
4 FM+
(FM speed is i ncreas ed aut omatic ally b y 6 %)
+6% fan motor
speed
Dis ab le
(Default)
5 Deactivation of the freeze protection firing
system
Enable Disable
(Default)
6 Freeze protection mode using circulation pump
(f or T-K3’s installe d in recirculatio n
systems)
Enable Disable
(Default)
The functions of the lower bank of dipswitches
No. Functions ON position OFF position
1 Master/Slave setting for Easy-Link systems Master Slave
(Default)
2 Direct vent setting Enable
Direc t v ent mode
Dis ab le
(Default)
3 Outdoor setting Enable
Outdoor mode
Dis ab le
(Default)
4
5
6
Output temperature settings
(See table to the right)
(Default 122°F)
Lower bank
Upper bank
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