White Rodgers 1F95-71 User Manual

The White Rodgers 1F95-71 is a premium 5+1+1 day programmable electronic digital thermostat from the Comfort-Set 90 Series for multi-stage heat/cool or heat pump systems with electric or fossil fuel auxiliary. It features 5+1+1 day programming with 4 periods per day, automatic/manual changeover, Computed Energy Management Recovery (EMR), and battery backup with 3 AA batteries. Powered by 24 VAC (requires hot and common); compatible with systems up to 1.5A per terminal, 2.5A max total. Below are the key specifications, installation, operation, programming, and troubleshooting instructions.

Preparations

Assemble tools: hand or power drill with 3/16 inch drill bit (if needed), flat blade screwdriver, wire cutter/stripper, level, voltmeter. Shut off electricity at main fuse box until installation complete. Label wires before disconnecting. This thermostat is for 24V systems only; not for line voltage. Install away from drafts, direct sunlight, or heat sources for accurate sensing. Install 3 AA alkaline batteries before programming.

WARNING! Failure to read and follow all instructions carefully before installing or operating this control could cause personal injury and/or property damage. Save these instructions.

Description

The thermostat uses solid-state microcomputer technology to provide precise time/temperature control. Features 5+1+1 day programming with four time/temperature settings per day, simultaneous heat/cool programs, up to 2 stages heat/1 stage cool, EMR, automatic changeover (selectable), compressor protection, lockout bypass (technician only), fan auto/continuous, emergency heat mode. LCD display alternates time/room temp/setpoint, up/down arrows, SYSTEM switch (HEAT/OFF/COOL/AUTO/EMER), FAN switch (ON/AUTO). Terminals: R (hot), C (common), G (fan), O/B (changeover), Y1/Y2 (compressor stages), W1/W2 (aux heat stages).

Applications: Multi-Stage Heat Pump: Yes; Heat Pump with Aux/Emergency: Yes; Multi-Stage Conventional: Yes; Single-Stage Heat/Cool: Yes; Heat Only: Yes; Cool Only: Yes; Gas/Oil/Electric/Hydronic: Yes; Millivolt: No.

Precautions

CAUTION! To prevent electrical shock/equipment damage, disconnect power at main fuse/circuit breaker until installation complete. Label wires prior to disconnection. If in doubt about wiring, consult qualified heating/air conditioning contractor.

WARNING! Do not use on circuits exceeding 20-30 VAC 50/60 Hz (0.05-1.5A per terminal, 2.5A max total); higher voltage damages control/causes shock/fire. Do not short terminals on gas valve/primary control to test; short/incorrect wiring burns out components/causes injury/property damage. Conform to NEC Class II circuits. Do not operate cooling below 50°F (compressor damage).

ATTENTION! This product does not contain mercury but may replace one that does. Do not open mercury cells; if damaged, wear non-absorbent gloves, clean up spilled mercury, place in sealed container. Refer to www.thermostat-recycle.org for disposal. Turn to OFF before battery replacement. Use alkaline only. Handle to avoid static discharge.

Specifications

• Electrical: 20-30 VAC 50/60 Hz, NEC Class II; Terminal Load 0.05-1.5A per terminal, 2.5A max total (requires R and C).
• Batteries: 3 AA alkaline (backup ~1 year).
• Setpoint Range: 45°F to 99°F (7°C to 37°C).
• Operating Ambient: 32°F to 110°F (0°C to 43°C).
• Humidity: 90% non-condensing max.
• Shipping: -4°F to 149°F (-20°C to 65°C).
• Dimensions: Approx. 3-1/2”H x 5-1/2”W x 1-1/8”D.
• Other: Compressor lockout 5 min; 5+1+1 day programming with 4 periods/day; EMR; Auto changeover.

Removing Old Thermostat

A standard heat/cool thermostat consists of three basic parts: 1) Cover; 2) Base; 3) Subbase. Label each wire with terminal designation before disconnecting. Disconnect wires one at a time; do not let fall into wall.

Installation

Remove old thermostat. Mount new base level on wall, connect wires to terminals. For single transformer systems, install red jumper between RH and RC. Push excess wire into wall, secure base, attach thermostat body. Power up and configure.

Batteries: Install 3 AA alkaline before programming; low battery flashes "BATTERY". Replace if flashing; program retained.

Wiring Diagrams

Terminal Designations: R (24V hot), C (common), Y1/Y2 (compressor stages), G (fan), W1/W2 (aux heat stages), O/B (changeover), L (fault).

Single Stage Heat/Cool: R to hot, C to common, Y to compressor, G to fan, W to heat.

Multi-Stage (MS2): Add Y2 compressor 2, W2 heat 2.

Heat Pump (HP1/HP2): Y1/Y2 compressor, O/B changeover (O cool, B heat), W1/W2 aux heat, E/W1 emer.

CAUTION! RED jumper wire must be connected between RH and RC for single transformer systems. Refer to equipment manuals for specifics.

Check Operation

Restore power. Set SYSTEM to HEAT/COOL, FAN to ON/AUTO, adjust setpoint to test.

Fan Operation

1. FAN ON: Blower runs continuously.
2. FAN AUTO: Blower runs on call for heat/cool.

Heating System

1. SYSTEM HEAT.
2. Setpoint above room temp: Heat activates.
3. Setpoint below: Heat stops.

Emergency System

1. SYSTEM EMER ("EMER" flashes).
2. Setpoint above: Aux operates ("STG1" "EMER").
3. Setpoint below: Stops.

Cooling System

CAUTION! Do not operate below 50°F.

1. SYSTEM COOL.
2. Setpoint below room temp: Cool activates (5-min delay first time).
3. Setpoint above: Cool stops.

Operating Features

• Home Screen: LCD shows time/temp, alternates; icons for system on, hold, filter, etc.
• Key Features: Automatic changeover, preprogrammed schedules, short-cycle protection, programmable fan, filter indicator, temporary override, vacation hold, remote sensing, daylight savings, power loss recovery.
• Compressor Protection: 5-min lockout.
• Remote Sensors: Up to 3 indoor, 1 outdoor; averages or selects.
• Range Limits: Heat/Cool 45-99°F.

Programming

5+1+1 day; 4 periods (MOR/DAY/EVE/NHT). Factory preprogrammed; press PROGRAM + RUN to start.

1. Set Time/Day: Press PROGRAM, TIME ± for hour/min, DAY for day.
2. Program: Select HEAT/COOL, press PROGRAM for period, TIME/TEMP ± to set.
3. Copy: Hold COPY to duplicate day/period.
4. Review: Press PROGRAM to cycle through.
5. Run: Press RUN.
6. Hold: Press HOLD for permanent; VACATION for timed hold.

Factory Heat: M-F 6AM 70°F, 8AM 62°F, 5PM 70°F, 10PM 62°F; Sa/Su 6AM 70°F, 10PM 62°F. Cool: M-F 6AM 78°F, 8AM 85°F, 5PM 78°F, 10PM 82°F; Sa/Su 6AM 78°F, 10PM 82°F.

Installer Configuration

Press PROGRAM + DOWN arrow for 5 seconds to enter menu. Use UP/DOWN to adjust, PROGRAM to advance.

Troubleshooting