Robertshaw 8625 - Manuals - manualsarea.com

Page 2 - Wiring Table; Old Terminal

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. • DO NOT CONNECT TO 120 VAC. This is a 24 VAC low-voltage thermostat. Do not install on ...

Page 3 - Figure 1; Installing Item 8625 Thermostat; Figure 2

WARNING: In heat pump applications, do not connect anything to the W1terminal. When switched to HP mode, W1 is connected internallyto Y1 on the thermostat. Connect AUX heat to the W2/E terminal. 1. Turn off power to heating and cooling system. 2. Remove cover of old thermostat to expose wires. Do no...

Page 4 - To Test Thermostat; Figure 3

6. Mark placement of mounting holes (see Figure 3). Set base aside. 7. Drill the marked holes using a 3/16” (5mm) drill bit. NOTE: Enclosed plastic anchors do not require a drilled hole for drywall. 8. Tap plastic anchors into the wall. 9. Align base with plastic anchors and feed wires through openi...

Page 5 - Wiring Diagrams

Wiring Diagrams The following is just a sample of the most common types of HVACsystems. Refer to your system’s installation manual for wiring information. 5 Hot Heating Control Cooling Control Transformer T H E R M O S T A T W1 C R Y1 G O B 24 VAC 120 VAC HEAT/COOL 4-WIRE SINGLE TRANSFORMER Fan Cont...

Page 6 - HEAT PUMP WIRING DIAGRAMS

6 Hot Compressor Contactor Transformer 24 VAC 120 VAC HEAT PUMP WITH COOL ACTIVE REVERSING VALVE W1 Y1 B G O T H E R M O S T A T NOTE: Make sure the HP switch is in the HP position.When switched to HP mode, W1 is connected internally to Y1. Reversing Valve Fan Relay C R Y2 W2/E HEAT PUMP + AUX COOL ...

Page 7 - CAUTION: DO NOT SWITCH SYSTEM TO COOL OR LEAVE IN COOL MODE

7 To Test Thermostat WARNING: DO NOT SHORT (JUMPER) ACROSS TERMINALS OF GAS VALVE OR SYSTEM CONTROL TO TEST OPERATION. THIS WILLDAMAGE THE THERMOSTAT AND VOID YOUR WARRANTY. CAUTION: DO NOT SWITCH SYSTEM TO COOL OR LEAVE IN COOL MODE IF THE TEMPERATURE IS BELOW 50°F (10°C). THIS CANDAMAGE THE AIR CO...

Page 8 - Programming Guide; AM; PROGRAMMING YOUR THERMOSTAT; Cursor

Programming Guide SETTING TIME OF DAY ANDDAY OF WEEK 1. Press SELECT until the cursor is over SET CLOCK. Press SET. TheHOURS segment will be blinking.Use the or button to adjust the HOURS setting. NOTE: The AM or PM indicator will change as the HOURS display rollsthrough a 24 hour cycle. 2. Press SE...

Page 9 - CUSTOMIZING THE THERMOSTAT

6. After pressing SET for the 4th event, the day of the week along the top will switchto SAT SUN and AM1 will be displayed. Repeat steps 2-4 to program theweekend settings. 7. With the weekend settings programmed, place the HEAT-OFF-COOL switch in the COOL position. Repeat steps 2-6 to program theco...

Page 10 - EER; Begin Programmed Operation

6. Press SET. The display will switch to the differential setting for 2 nd stage heating and cooling. 7. The display will read diF2 . Press the or button to adjust the differential up or down. 8. Press SET. The display will switch to the differential delay. 9. The display will read dLY2 . The differ...

Page 11 - CHECK FILTER; Backlit Display

Another way to select a temporary hold is: 1. Press SELECT until the cursor is over TEMP HOLD. Press SET. The temperature will be blinking. Use the or button to change the temperature. 2. Press SET. To cancel a temporary hold, press SELECT until the cursor is aboveRUN/SET PROG. Press SET. Vacation H...

Page 12 - Troubleshooting; Symptom; If problems with thermostat cannot be resolved, call:; automated help line is available.

Troubleshooting Symptom Remedy Thermostat does not turn Check wiring. on system. (See Installing Item 8625 Thermostat ) Thermostat turns on and off too Increase temperature differential. frequently. (See Programming Guide ) System fan does not operate Move the Electric/Gas switch to properly. either...

Page 13 - TWO-YEAR LIMITED WARRANTY

13 ©2005 Invensys Controls Americas 110-1101B Controls Americas 191 E. North AvenueCarol Stream, Illinois 60188United States of America TWO-YEAR LIMITED WARRANTY Invensys Controls Americas warrants to the original contractor installer or to the original consumer user, each new Robertshaw thermostat ...

Page 14 - Notes