tekmar 422 Universal Reset Module - Manual (Page 10)

© 2007 D 422 - 08/07 10 of 32
Item Field Range Access Description
40 to 100°F
(4.5 to 38.0°C)
Default = 70°F
(21.0°C)
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BOILER INDOOR SECTION B
The design indoor air temperature used in the heat
loss calculation for the boiler zones. Typically set to
70°F (21.0°C).
Note: This item is only available when the Boiler
Sensor Sup / Ret DIP switch is set to Sup and the
tN4 DIP switch is set to Boiler.
70 to 220°F
(21.0 to 104.5°C)
Default = 180°F
(82.0°C)
InS
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BOILER DESIGN SECTION B
The supply water temperature required for boiler
zones on the typical coldest day of the year.
Note: This item is only available when the Boiler
Sensor Sup / Ret DIP switch is set to Sup and the
tN4 DIP switch is set to Boiler.
OFF, 80 to 180°F
(OFF, 26.5 to 82.0°C)
Default = 140°F
(60.0°C)
InS
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BOILER MINIMUM SECTION C
The minimum allowed boiler target temperature and
boiler return protection temperature. Check the boiler
manufacturer’s manual for recommend supply water
temperatures.
120 to 225°F, OFF
(49.0 to 107.0°C, OFF)
Default = 200°F
(93.5°C)
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BOILER MAXIMUM SECTION C
The maximum allowed boiler target temperature.
Note: This item is only available when the Boiler
Sensor Sup / Ret DIP switch is set to Sup and the
tekmar stager DIP switch is set to OFF.
0:00 to 3:00 min
Default = 0:10 min
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FIRE DELAY SECTION C
The time delay the control can expect between the
time that the relay contact closes to fire the boiler
and when the burner actually fires.
Note: This item is only available when the Boiler
Sensor Sup / Ret DIP switch is set to Sup and the
tekmar stager DIP switch is set to OFF.
Au, 2 to 42°F
(Au, 1 to 23.5°C)
Default = Au
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BOILER DIFFERENTIAL SECTION C
The temperature differential that the control is to use
when it is operating the boiler.
Note: This item is only available when the Boiler
Sensor Sup / Ret DIP switch is set to Sup and the
tekmar stager DIP switch is set to OFF.
10 to 230 seconds
Default = 30 seconds
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BOILER MOTOR SECTION C
The amount of time required for the modulating
actuating motor to fully open the gas valve or operate
the fan speed from a stopped position to full speed
on a modulating boiler.
Note:
This item is only available when the Boiler
Sensor Sup / Ret DIP switch is set to Sup, the Boiler
On-Off / Mod DIP switch is set to Mod and the tekmar
stager DIP switch is set to OFF.
Adjust Menu (3 of 5)
Continued on next page.
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