tekmar 423 Universal Reset Module - Manual (Page 11)

11 of 36 © 2007 D 423 - 08/07
Item Field Range Access Description
Au (Auto)
OFF
Default = Au
InS
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BOILER 2 SECTION C
Selects whether Boiler 2 is operational or not.
Note: This item is only available when the Boil Sensor
Sup / Ret DIP Switch is set to Sup, and the tekmar
stager DIP switch is set to OFF.
1 HRF1
2 HRF2
3 Fancoil
4 Fin-tube Convector
5 Radiator
6 Baseboard
Default = 4
InS
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BOILER TERMINAL SECTION B
The type of heating terminal units that are being
used in boiler zones.
Note: This item is only available when the Boiler
Sensor Sup / Ret DIP switch is set to Sup.
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.
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.
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.
90 to 225°F, OFF
(32.0 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.
Au (Auto), 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
to cycle the boiler On and Off.
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 (Auto), 0.5 to
20.0 minutes
Default = Au
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STAGE DELAY SECTION C
The minimum time delay between the operation of
stages.
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.
Adjust Menu (4 of 7)
Continued on next page.
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