tekmar 421 Mixing Reset Module - Manual (Page 7)

7 of 20 © 2007 D 421 - 08/07
Item Field Range Access Description
-60 to 45°F
(-51.0 to 7.0°C)
Default = 10°F
(-12.0°C)
InS
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OUTDOOR DESIGN SECTION B
The design outdoor air temperature used in the heat
loss calculations for the heating system. Typically set
to the temperature of the coldest day of the year.
VAr, FLt
Default = VAr
InS
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MIX MODE
Select the type of mixing device to be used for mixing.
Options are variable speed injection pump (VAr) or
floating action (FLt).
1 HRF1
2 HRF2
3 Fancoil
4 Fin-tube Convector
5 Radiator
6 Baseboard
Default = 1
InS
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MIX TERMINAL SECTION B
The type of heating terminal units that are being
used in the mix temperature zones.
40 to 100°F
(4.5 to 38.0°C)
Default = 70°F (21.0°C)
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MIX INDOOR SECTION B
The design indoor air temperature used in the heat
loss calculation for mix zones. Typically set to 70°F
(21.0°C).
70 to 220°F
(21.0 to 104.5°C)
Default = 120°F
(49.0°C)
InS
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MIX DESIGN SECTION B
The supply water temperature required for the mix
temperature zones on the typical coldest day of the
year.
OFF, 40 to 150°F
(OFF, 4.5 to 65.5°C)
Default = OFF
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MIX MINIMUM SECTION C
The minimum allowed mix target temperature.
80 to 220°F, OFF
(26.5 to 104.5°C, OFF)
Default = 140°F
(60.0°C)
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MIX MAXIMUM SECTION C
The maximum allowed mix target temperature.
Adjust Menu (1 of 2)
The Adjust Menu items are the programmable settings
used to operate the mechanical equipment.
Continued on next page.
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