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IMPORTANT SAFETY INFORMATION
WARNING:
•Always turn off power at the main power source by unscrewing
fuse or switching circuit breaker to the OFF position before installing,
removing, cleaning, or servicing thermostat.
• Read all of the information in this manual before installing or pro-
gramming this thermostat
• This is a 24V AC low-voltage thermostat. Do not install on voltages
higher than 30V AC.
• All wiring must conform to local and national building and electrical
codes and ordinances.
• Do not short (jumper) across terminals on the gas valve or at the
system control to test installation. This will damage the thermostat
and void the warranty
1
2 Heat / 2 Cool
W
A
R
R
A
N
T
Y
INTEGRATED COMFORT SOLUTIONS
™
DIGITAL
NON-PROGRAMMABLE
THERMOSTAT
9520
User’s Manual
Quick Start
Installation
110-733D
®
HEAT PUMP
H
!