52
TC5-1N5FAB rev.06
TC5-1N5FAB
1
Making Parameter Adjustments for Zoned Heaters
Offset:
The heater offset can provide substantial energy savings if correctly
adjusted 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.
Differential:
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 selection knob to
HEAT 1-
2 — OFFSET/DIFF.
The cur-
rent heating offset for Heater 1
is displayed, alternating with
the letters "
OFT
" and "
Ht.1
".
n
Use the adjustment knob to ad-
just the offset to the desired
value.
n
Press the push-button. The current heating differential for Heater 1 is
displayed, alternating with the letters "
DIF
" and "
Ht.1
".
n
Use the adjustment knob to adjust the differential to the desired value.
n
Press the push-button. The current heating offset for Heater 2 is dis-
played, alternating with the letters "
OFT
".
n
Use the adjustment knob to adjust the offset to the desired value.
n
Press the push-button. The current heating differential for Heater 2 is
displayed, alternating with the letters "
DIF
" and "
Ht.2
".
n
Use the adjustment knob to adjust the differential to the desired value.
21
TC5-1N5FAB rev.06
TC5-1N5FAB
2
Activating Temperature Curve
If you have just finished specifying the points on the curve:
n
Press the push-button once again. The word
OFF
flashes on the
display.
n
Turn the adjustment knob clockwise one notch. The word
ON
flashes
on the display, indicating that the temperature curve is now activated.
n
Set the selection knob to
ROOM TEMPERATURE
.
If you have previously defined the points on the curve:
n
Set the selection knob to
SET POINT / T
o
CURVE
. The current value
of the temperature set point flashes on the display.
n
Press the push-button. The word
OFF
is displayed.
n
Press the push-button to display the points of the curve currently
defined until the word
OFF
appears (thirteen clicks).
n
Turn the adjustment knob clockwise one notch. The word
ON
flashes
on the display, indicating that the temperature curve is now activated.
n
Set the selection knob to
ROOM TEMPERATURE
.
