Robertshaw 9405 User Manual Page 1

DIGITAL NON-PROGRAMMABLE THERMOSTAT9405ELECTRICEGASGMILLIVOLTM®NeW1 HeatUser's ManualQuick StartInstallationApplicationThe Robertshaw 9405 is a s

Step 5: TroubleshootingSymptom Remedy Thermostat does not turn on system.Check wiring (see Installationsection). If problems with thermostat cannot be

Two Year Limited WarrantyMaple Chase warrants to the original contractor installer, or to the original consumer user, each new Robertshaw thermostat t

NOTES12

IMPORTANT SAFETY INFORMATIONWARNING:• Always turn off power at main fuse or circuit breaker panel beforeinstalling, removing, cleaning, or servicing t

Recycling ThermostatIf this thermostat is replacing a thermostat that contains mercuryin a sealed tube, do not place your old thermostat in the garbag

5. Place thermostat against the wall at desired location. Make sure wireswill feed through opening (Figure 4) on base of thermostat. 6. Mark placemen

5RWGTHERMOSTAT120 VAC24 VACTransformerHotHEATINGCONTROLRWGTHERMOSTATFANCONTROLHEATINGCONTROL120 VAC24 VACTransformerHotRWGTHERMOSTATTT PPPPT NGas valv

15. Set the GAS/ELEC switch to either GAS for a gas/oil heating system or ELEC for an electric heating system (Figure 6).16. Install two AA Energizer

7Step 3: Testing the ThermostatWARNING: DO NOT SHORT (JUMPER) ACROSS TERMINALS OF GAS VALVE OR SYSTEM CONTROL TO TEST OPERATION. THIS WILLDAMAGE THE T

4. Put the -ON-AUTO switch into the ON position. The blower fan should turn on.The display will show a and ON.5. Put the -ON-AUTO switch into the A

9◆ Temperature DifferentialThe temperature differential is factory set at 1.0°F (.5°C). This meansthat whenever the room temperature changes by one de