Robertshaw 9420 - Manuals - manualsarea.com

Page 2 - IMPORTANT SAFETY INFORMATION WARNING:; Step 1: Replacing Existing Thermostat; Old Terminal; Figure 1

IMPORTANT SAFETY INFORMATION WARNING: • Always turn off power at main fuse or circuit breaker panel before installing, removing, cleaning, or servicing thermostat. • Read all the information in this manual before installing this thermostat. • This is a 24 VAC low-voltage thermostat. Do not install o...

Page 3 - NOTE: FOR NEW INSTALLATIONS, MOUNT THERMOSTAT ON; Turn power off to the heating and cooling systems.; TM

Recycling Thermostat If this thermostat is replacing a thermostat that contains mercuryin a sealed tube, do not place your old thermostat in the garbage.Contact your local waste management authority for instructionsregarding proper disposal of the thermostat. If you have any ques-tions, call Roberts...

Page 4 - Wiring Diagrams; Mounting Holes; Figure 4; Figure 5

5. Place thermostat against the wall at desired location. Make sure wires will feed through opening (Figure 4) on base of thermostat. 6. Mark placement of mounting holes (Figure 4). Set base aside. 7. If mounting on drywall, tap plastic anchors into wall. NOTE: ENCLOSED PLASTIC ANCHORS DO NOT REQUIR...

Page 6 - Step 3: Testing the Thermostat; CAUTION: DO NOT SWITCH SYSTEM TO COOL IF THE TEMPERATURE; TERM

15. Replace thermostat cover by snapping into place. 16. Turn on power to system. Test thermostat as described in the following section. Step 3: Testing the Thermostat WARNING: DO NOT SHORT (JUMPER) ACROSS TERMINALS OF GAS VALVE OR SYSTEM CONTROL TO TESTOPERATION. THIS WILL DAMAGE THE THERMOSTAT AND...

Page 8 - System; Figure 7

Step 4: Customizing the Thermostat ◆ Settings System Cool: The thermostat controls the cooling.Off: The heating and cooling systems are off. Heat: The thermostat controls the heat.Emer: The thermostat controls the second stage emergency heat.Used only when the primary stage of heat is not functionin...

Page 9 - Temperature Differential 2; Stage Delay; Stage Delay

9 ◆ Temperature Differential 2 nd Stage Delay The temperature differential is factory set at 1.0°F (.5°C) for the 1st stagedifferential and 2°F (1°C) for the 2nd stage. This means that whenever theroom temperature changes by one degree Fahrenheit from the tempera-ture setting, the system will turn o...

Page 10 - Reset Switch; Reset; Symptom; Display shows CHECK; Changing Fahrenheit; Thermostat does not turn on system.; Installation; If problems with thermostat cannot be resolved, call:

10 WIRINGOPENING Reset Switch ◆ Reset To reset the thermostat press the RESET button located just below thelower left corner of the display. Step 5: Troubleshooting Symptom Remedy Display shows CHECK Monitors system status. Call yourlocal HVAC service provider. Check F/C (Fahrenheit/Celsius)setting....

Page 11 - Two Year Limited Warranty; warrants to the original contractor; Invensys Climate Controls Americas; Warranty Claims Department

Two Year Limited Warranty Climate Controls Americas warrants to the original contractor installer, or to the original consumer user, each new Robertshaw thermo-stat to be free from defects in materials and workmanship under normaluse and service for a period of two (2) years from date of purchase. T...

Page 12 - NOTES