Adjus t menu – tekmar 423 Universal Reset Module User Manual
Page 13
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© 2007
D 423 - 08/07
Item Field
Range
Access
Description
OFF, 70 to 190°F
(OFF, 21.0 to 87.5°C)
Default = OFF
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DHW (UnOccupied)
SECTION H
The temperature of the DHW tank during the Sleep
and Unoccupied periods.
Note: This item is only available when DHW Mode
is set 1 through 4, the Off / DHW Sensor DIP Switch
is set to DHW Sensor, and the Schedule Setting is
set to Member 1, 2, 3 or 4.
1 to 42°F
(0.5 to 23.5°C)
Default = 6°F (3.0°C)
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DHW DIFFERENTIAL
SECTION H
The temperature differential (swing up and down) of
the DHW tank from the DHW setting.
Note: This item is only available when the DHW
Sensor DIP switch is set to DHW, and the DHW
Mode is set 1 through 4 and the DHW Sensor DIP
is set to OFF.
100 to 220°F
(38.0 to 104.5°C)
Default = 180°F
(82.0°C)
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DHW EXCHANGE (Occupied)
SECTION H
The boiler supply temperature to the DHW heat exchanger
during the Occupied and Wake periods.
Note: This item is only available when DHW Mode
is set 1 through 4 and the DHW Sensor DIP is set
to OFF.
OFF, On
Default = OFF
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DHW EXCHANGE (UnOccupied)
SECTION H
Selects whether the control should respond to
DHW Demands during the Sleep and Unoccupied
periods.
Note: This item is only available when DHW Mode
is set 1 through 4 and the Schedule Setting is set
to Member 1, 2, 3 or 4 and the DHW Sensor DIP is
set to OFF.
OFF,
1 (parallel, no priority)
2 (parallel, priority)
3 (pri-sec, no priority)
4 (pri-sec, priority)
Default = 1
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SETPOINT MODE
SECTION J
Selects the Setpoint mode of operation. This determines
the operation of the primary pump and whether or
not priority is required.
60 to 220°F
(15.5 to 104.5°C)
Default = 180°F
(82.0°C)
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SETPOINT (Occupied)
SECTION J
The minimum boiler target temperature when a
Setpoint Demand is present during the Wake and
Occupied periods.
Note: This item is only available when Setpoint Mode
is set 1 through 4.
Adjust Menu (6 of 7)
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