Robertshaw 9520 User Manual
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Robertshaw 9520 User Manual

Digital non-programmable thermostat
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I N T E G R A T E D C O M F O R T S O L U T I O N S
110-733D
!

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
9520
®
™
1
DIGITAL
NON-PROGRAMMABLE
THERMOSTAT
H
HEAT PUMP
2 Heat / 2 Cool
User's Manual

Quick Start

Installation

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Summary of Contents for Robertshaw 9520

  • Page 1: Quick Start

    9520 DIGITAL NON-PROGRAMMABLE THERMOSTAT ® ™ I N T E G R A T E D C O M F O R T S O L U T I O N S HEAT PUMP 2 Heat / 2 Cool User’s Manual...
  • Page 2 Features • Multi-stage heating and cooling control • Zone system compatible as a master thermostat • Multi-colored LED indicators for system status • Low battery indicator. • Fahrenheit/Celsius display option. • Adjustable from 45°F (4°C) to 90°F (32°C). • Accuracy within ± 1 degree. •...
  • Page 3 Contact your local waste management authority for instructions regarding proper dis- posal of the thermostat. If you have any questions, call Robertshaw tech- nical support at 1-800-445-8299. Step 2: Installing Model 9520 Thermostat NOTE: F , 4-5 OR NEW INSTALLATIONS...
  • Page 4 3. Place AUTO-ON switch into AUTO position. 4. Remove the cover using a coin or screwdriver Figure 2 5. Place thermostat against the wall at desired location. Make sure wires will feed through opening on base of thermostat. 6. Mark placement of mounting holes. See Figure 3. Set base aside.

  • Page 5: Wiring Diagrams

    (Figure 4) matching the label to the corresponding terminal (see Wiring Diagrams below). Tighten screws. FIGURE 4 9520 WIRING SAMPLE #1 Typical heat pump with cool active reversing valve and auxiliary/emergency heat. 9520 WIRING SAMPLE #2 Typical heat pump with heat active reversing valve and auxiliary/emergency heat.

  • Page 6: Terminal Function

    TERMINAL LEGEND - 9520 TERM EQUIPMENT TO CONNECT REQ? TERMINAL FUNCTION 24VAC common connection For input of 24VAC common side of transformer System fault indicator connection For connection of system fault indicator (if present) 24VAC hot connection For input of 24VAC hot side...

  • Page 7: Step 3: Testing The Thermostat

    12. Put the °F/°C switch to either °F for Fahrenheit display or °C for Celsius display (see Figure 5). °F/°C Switch Batteries NOT Required. Figure 5 13. Replace cover on thermostat by snapping into place. 14. Turn on power to system . Test thermostat as described in the following section.

  • Page 8: Step 4: Customizing Your Thermostat

    5. Press the button until the temperature setting is at least 3 degrees above room temperature. The heating system should turn on. The fan may not turn on immediately, depending on the fan delay built into the furnace. COOL-OFF-HEAT-EM 6. Put the COOL-OFF-HEAT-EM switch into the OFF position.

  • Page 9: Changing Fahrenheit (F) To Celsius (C)

    Changing Temperature Differential IMPORTANT: The temperature differential is factory set at 1 (1°). This means that whenever the room temperature changes by one half of a degree from the temperature setting, the system will turn on. If the system turns on too often, increase the temperature differential. 1.

  • Page 10: Troubleshooting

    Troubleshooting Symptom Remedy Thermostat does not turn Check wiring. on system. (See Installing Model 9520 Thermostat) Check fuse. Replace with 2 amp fuse if fuse has opened. Thermostat turns on and Increase temperature differential. off too frequently. (See Changing Temperature...

  • Page 11: Five Year Limited Warranty

    Five Year Limited Warranty Maple Chase Company warrants to the original contractor installer or to the original consumer user, each new Robertshaw thermostat to be free from defects in materials and workmanship under normal use and service for a period of five (5) years from date of purchase. This warranty and our liability does not apply to batteries or the merchandise that has been damaged, caused by misuse, neglect, mishandling, alterations, improper installation, or use in a way other than in accordance with...
  • Page 12 NOTES...

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