Robertshaw 9520 User Manual

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
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INTEGRATED COMFORT SOLUTIONS
™
DIGITAL
NON-PROGRAMMABLE
THERMOSTAT
9520
User’s Manual
Quick Start
Installation
110-733
®
HEAT PUMP
H
110-733C

Robertshaw 9520 Specifications

General

Temperature Range	40°F to 90°F
Power Source	Battery or Hardwired
Display	Digital
Programming	7-Day Programmable
Stages	1 Heat / 1 Cool
Temperature Control	±1°F
Backlight	Yes
Hold Function	Yes
Compatibility	Heat Pump
Battery	2 AA

Summary

Important Safety Information

General Safety Warnings

Always turn off power before servicing; read manual before installation or programming; use only on 24V AC systems.

Installing Model 9520 Thermostat

Mounting and Initial Setup

Instructions on turning off power, setting switches, and removing the cover.

Thermostat Placement Guidelines

Finalizing Installation and Testing

Connecting Wires and Setting Display

Guidance on connecting wires to the terminal strip and selecting Fahrenheit or Celsius display.

System Power-Up and Initial Test

Testing Thermostat Operation

Cooling System Test

Procedure to test the cooling mode, including temperature setting and system response.

Heating System Test

Procedure to test the heating mode, including temperature setting and system response.

Fan Operation Test

Steps to test the blower fan operation in both ON and AUTO modes.

Operation

Setting or Changing the Setpoint Temperature

Changing Temperature Differential

Troubleshooting Common Issues

Thermostat Not Turning On

Remedies for a thermostat that fails to power on or operate the system.

Frequent Cycling or Blank Display

Fan or Temperature Display Issues

Five Year Limited Warranty

Warranty Coverage and Limitations

Details Maple Chase Company's five-year warranty, exclusions, and remedies.