Robertshaw 9620 Operation & User’s Manual

3, TABLE 1 Old Terminal New Label Description R, V-VR or VR-R R 24 VAC Y, Y1 or M Y1 Stage 1 Cooling/Heating Circuit O or R O Reversing Valve (Cooling Mode) BBReversing Valve (Heating Mode) G or F G Fan Contactor Circuit Y2 Y2 2nd Stage Cooling Circuit W1 or W2 or W-U W2 2nd Stage Heatin…

11, 11 > > ET PROG/MAN C PROG MAN PROG MAN SET PROG/MAN COOL-OFF-HEAT-EM AUX CHECK EMER AUTO - ON > > > > PROG MAN SET PROG/MAN COOL-OFF-HEAT-EM AUX CHECK EMER AUTO - ON > > PROG MAN SET PROG/MAN COOL-OFF-HEAT-EM AUX CHECK EMER AUTO - ON > > AUTO - O…

4, Robertshaw 9620 3. Place AUTO-ON switch into AUTO position. 4. Remove the cover using a coin or screwdriver (Figure 2). 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 (Figure 3). Set …

13, 13 If problems with thermostats cannot be resolved, call: Technical Support: (800) 445-8299 Monday-Friday 7:30-5:30 CST Troubleshooting SYMPTOM REMEDY Thermostat does not turn on system. Check wiring. (See Installing Model 9620 Thermostat) Check fuse. Replace with 3 amp fuse if fuse…

6, 6 12. Install two AA ENERGIZER ® brand batteries or equivalent into battery compartment. Be sure to match positive (+) ends of batteries with positive (+) battery terminals in the battery compartment. 13. Replace cover on thermostat by snapping into place. 14. Turn on power to sys…