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COMFORT-SET 90
®
SERIES
HEAT PUMP INSTALLATION/CONFIGURATION
This White-Rodgers Automatic Setback
Digital Thermostat uses microcomputer
technology to provide precise time and
1F94-371: 7 Day programming; residen-
tial applications
ELECTRICAL DATA
Electrical Rating:
20 to 30 VAC, 50/60 Hz with common
0.05 to 1.5 Amps per terminal
2.5 Amps maximum total load (all
terminals combined)
INSTALLATION
WHITE-RODGERS
Part No. 37-6186B
Replaces 37-6186A
0121
DESCRIPTION
SPECIFICATIONS
temperature control. This thermostat offers
the flexibility to design heating and cooling
programs that fit building needs. This
Standard Systems:
Single-stage or two-stage compressor
heat pump.
THERMAL DATA
Setpoint Temperature Range:
45° to 99°F (7° to 37°C)
Operating Ambient Temperature:
32° to 110°F (0° to 43°C)
Operating Humidity Range:
90% non-condensing max.
Shipping Temperature Range:
-4° to 149°F (-20° to 65°C)
PRECAUTIONS
Do not short out terminals on gas valve
or primary control to test. Short or
incorrect wiring will damage thermostat
and could cause personal injury and/or
property damage.
Do not use on circuits exceeding
specified voltage. Higher voltage will
damage thermostat and could cause
shock or fire hazard.
Thermostat installation and all compo-
nents of the system shall conform to
Class II circuits per the NEC code.
To prevent electrical shock and/or
equipment damage, disconnect electric
power to system at main fuse or circuit
breaker box until installation is
complete.
Read all instructions thoroughly before
beginning installation.
CAUTION
!
WARNING
!
This thermostat is intended for use with a
low voltage system. Do not use on a line
voltage system.
Do not exceed ratings shown in the Specifi-
cations section, above. If in doubt about the
electrical ratings of your heating/cooling
system, have it inspected by a qualified
heating and air conditioning contractor or
licensed electrician.
All wiring must conform to local and
national electrical codes and ordinances.
This control is a precision instrument, and
should be handled carefully. Rough handling
or distorting components could cause the
control to malfunction.
NOTE
thermostat is adaptable to most 24 volt
residential forced air heat pump systems with
electric or fossil fuel auxiliary.