Tekmar Universal Reset Module 422 User Manual

© 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.
ADJUST MENU

Tekmar Universal Reset Module 422 Specifications

General

Brand	Tekmar
Model	Universal Reset Module 422
Category	Control Unit
Language	English