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PAGE 5
NEP04/03
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Control Equipment
PTC
C
0
F
0
p
m
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t
V
0
2
3
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4
3
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4
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temp: vdc:
programming:
All of the programming of the ptc is carried out at the thermostat. No program-
ming tool is required, and the programming sequences are all menu driven.
Description of all programming steps is done in the order in which they appear
while actually programming the thermostat. Please look at fig. #3 for the
locations of up, down, menu, and enter buttons.
In many cases you will never need to program the ptc thermostat. The standard
factory settings are suitable for most applications. A list of the standard factory
settings are shown below. If you want to change any of these settings, follow
the directions in the next section.
ptc thermostat function and factory settings
functions
standard factory setting
setpoint maximum
30
0
C - 86
0
F
setpoint minimum
15
0
C - 59
0
F
contact A
close for >50% cooling demand
contact B
close for >50% heating demand
night set back deadband
10
0
C - 18
0
F
proportional band
2
0
C - 3.5
0
F
soft start ramp time
00 minutes (off)
display type
0
C
calibration
0
fig. #5
