Thermostat Installation - Emerson 1F75P-21NP Installation And Operating Instructions Manual

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WIRING
Refer to equipment manufacturer's instructions for specific system wiring information. After
wiring, see INSTALLER MENU for proper thermostat configuration. Wiring table shown are
for typical systems and describe the thermostat terminal functions.
Terminal Designations
Precautions
• Do not exceed the specification ratings.
• All wiring must conform to local and national electrical codes and ordinances.
• This control is a precision instrument, and should be handled carefully. Rough handing or
distorting components could cause the control to malfunction.
!
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could
cause shock or fire hazard.
Do not short out terminals on gas valve or primary
control to test. Short or incorrect wiring will burn
out thermostat and could cause personal injury
and/or property damage.
2

THERMOSTAT INSTALLATION

GL
R
O/B
Y
GH
W
C
WARNING
Terminal Function
Low Speed Fan Relay
Power (24V)
Changeover Terminal-Energized in Cool (O) or Heat (B)
for Heat Pump.
Heat and Cool Mode 1st Stage Compressor
High Speed Fan Relay
Heat Mode – 2nd stage (Electric)
Common wire for 24V
Leveling Thermostat
Leveling is for appearance only and
will not affect thermostat operation.
!
To prevent electrical shock and/or equipment
damage, disconnect electrical power to system
at main fuse or circuit breaker box until
installation is complete.
CAUTION

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