47
TC5-2V2SA.rev.05
TC5-2V2SA
1
Adjusting Heater Offsets
s
The heater offset can provide substantial energy savings if correctly ad-
justed according to the outside temperature. It is the number of degrees
below the set point at which the heating units turn off (see diagram above).
The heater 1 and 2 offsets can be adjusted between -10
o
F and 20.0
o
F
(-5.6
o
C and 11.1
o
C). If the heater offset is negative, the heating units will turn
off at temperatures above the set point. If cascading heating is used, only
Heater 1 offset is used.
n
Set selection knob to
HEATER
1 — OFF./DIFF.
or
HEATER 2
— OFF./DIFF
. The current
heating offset is displayed, al-
ternating with the letters "
OFT
".
n
Use the adjustment knob to ad-
just the offset to the desired
value.
2
Adjusting Heater Differentials
The heating differential is the temperature difference between the moment
the heater units turn on and the moment they turn off (see diagram above).
The differential can be adjusted between 0.5
o
F and 20.0
o
F (0.3
o
C and 11.1
o
C).
n
Set the selection knob to
HEATER 1 — OFF./DIFF.
or
HEATER 2 —
OFF./DIFF
. The current heater offset is displayed, alternating with
the letters "
OFT
".
n
Press the push-button. The heater differential is displayed, alternat-
ing with the letters "
DIF
".
n
Use the adjustment knob to adjust the differential to the desired value.
