RS.8D.M1.22 AK2-SC 255 Reference Manual 71
Num of aux heat stages (0 to 5) The number of auxiliary heating stages in this
HVAC unit.
Target temp. for stage (0.0 to 99.9) A separate field for each of the stages in
the unit.
Range +/- (0.0 to 9.9) The range selected creates a dead band.
Heat will cut in at target minus range, and cut out at
target plus range.
Pre delay for stage (0 to 60) The number of minutes that must elapse
after target plus range is reached before the stage will
come on. There is one field for each stage.
Post delay for stage (0 to 60) The number of minutes that must elapse
after target minus range is reached before the stage
will be turned off. There is one field for each stage.
Lockout aux ht. in setbk (List box: Yes, No) Whether or not auxiliary heat is to
be locked out during hours when setback is effective.
Ambient heat lockout (List box: Yes, No) Whether or not heat is to be
locked out based on ambient temperature.
No heat above (0.0 to 100.0) Auxiliary heat will be locked out above
this temperature plus range (next line). Heat will be
allowed on again when ambient temperature has fallen
to lockout minus range.
Range +/- (0.0 to 9.9) The range selected creates a dead band
around the lockout temperature. Heat will be locked
out at lockout temperature plus range, and once locked
out will be allowed on at ambient lockout minus range.
RTU Heating auxiliary
heat configuration, p2:
analog valve strategy With an analog gas valve selected, the second heating page looks instead like this:
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