White Rodgers 1F80-41 User Manual

The White Rodgers 1F80-41 is a 5-Day/2-Day programmable digital thermostat for heat/cool systems. It features simultaneous programming, 12/24-hour clock, °F/°C. Battery powered with 3 AA. Compatible with standard heat/cool, electric, gas/oil, hydronic, single-stage heat pump, millivolt. Below are the key specifications, installation, operation, programming, and troubleshooting instructions.

Preparations

FAILURE TO READ... INJURY/DAMAGE.

• CAUTION: Disconnect power.
• WARNING: Low voltage only, no exceed, no short, codes.

Thermostat Details

Features: LCD set/time/temp, override, HOLD, 12/24 clock, °F/°C, 45-90°F, 5 terminals single/two-transformer, 5/2 day, simultaneous storage, B/O heat pump/damper, preprogrammed, 4 periods, 3 AA batteries.

Buttons: Up/down, SET TIME, VIEW PRGM, RUN PRGM, HOLD TEMP, FAN, SYSTEM.

Display: Time/temp, day, AM/PM, HEAT/COOL, BATTERY, HOLD.

Removing Old Thermostat

Disconnect. Label/remove wires.

Mounting and Wiring

Wiring Diagrams

Figure 3: Heat only 2-wire RH/RC jumper, W heat.

Figure 4: 3-wire Series 10 Jumper at furnace.

Figure 5: Heat only 3-wire RH/RC jumper, W/G.

Figure 6: Cool only 3-wire RH/RC, Y/G.

Figure 7: Heat/cool 4-wire RH/RC, W/Y/G.

Figure 8: Heat/cool 5-wire two-trans Separate RH/RC.

Figure 9: Heat pump COOL active O changeover.

Figure 10: Heat pump HEAT active B changeover.

1. Connect.
2. Mount.
3. Secure.

Check Operation

Service if issues.

Fan Operation

1. ON, blower.
2. AUTO, off.

Heating System

1. HEAT, pilot.
2. Up above.
3. Down below.

Cooling System

CAUTION <50°F no. COOL flashes lockout.

1. COOL.
2. Down below, blower/cool.
3. Up above.

Operating Features

• Storage: Simultaneous.
• Override: Until next.
• HOLD: Indefinite.
• F/C: SET TIME + HOLD TEMP.
• 12/24 Clock: SET TIME + RUN PRGM.
• Battery: Replace low.
• Adjust: VIEW PRGM + HOLD TEMP, ±4°.

Programming

5/2 day, 4 periods. Factory heat 6AM 68F etc.

Set Time: SET TIME adjust hour/min/AMPM.

Enter: VIEW PRGM for periods, adjust time/temp heat/cool.

Run: RUN PRGM.

Specifications

• Electrical: 8-30 VAC/DC, 0.05-1.5 A, 1.5 A total
• Setpoint: 45-90°F
• Ambient: 32-105°F
• Humidity: 0-90% RH
• Shipping: -40-150°F

Troubleshooting