White Rodgers UP300 User Manual

The White Rodgers UP300 is a non-programmable thermostat with Home/Sleep/Away presets for single-stage or two-stage heat pumps, gas, oil, and electric furnaces. It includes manual temperature control, auto/manual changeover, cycle rate adjustment, keypad lockout, and filter reminder. Powered by 24 VAC; compatible with systems up to 1.5A per terminal, 1.5A max total. Below are the key specifications, installation, operation, configuration, and troubleshooting instructions.

1. Preparations 2. Description 3. Precautions 4. Specifications 5. Installation 5.1 Wiring Diagrams 6. Check Operation 6.1 Fan Operation 6.2 Heating System 6.3 Emergency System 6.4 Cooling System 7. Operating Features 8. Programming 9. Installer Configuration 10. Troubleshooting

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 power to the heating and cooling system at the main fuse or circuit breaker box until installation complete. Label wires before disconnecting. Verify package contents include thermostat, wallplate, mounting screws, and 2 AA batteries. This thermostat is for low voltage systems only; not for line voltage. Install away from drafts, direct sunlight, or heat sources for accurate sensing.

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 is a non-programmable device with Home/Sleep/Away presets for single-stage or two-stage heat pumps, gas, oil, and electric furnaces. It includes manual temperature control, auto/manual changeover, cycle rate adjustment, keypad lockout, and filter reminder. LCD display shows room temperature, setpoint, and status icons. Terminals: R (hot), W (heating), Y (cooling), G (fan), C (common).

Applications: Gas or Oil-Burning Furnaces: Yes; Hydronic Heating Systems: Yes; Central Air Conditioning Systems: Yes; Single-Stage Heating and Cooling Systems: Yes; Two-Stage Heat Pumps: Yes.

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 24 VAC 50/60 Hz (1.5A per terminal, 1.5A 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).

Specifications

Removing Old Thermostat

Shut off power to the heating and cooling system. Remove the front cover of the old thermostat. Label each wire using the terminal labeling reference chart (e.g., R, W, Y, G, O/B). Disconnect wires one at a time. Remove the old thermostat base from the wall.

Installation

Attach the new thermostat's wallplate to the wall using supplied screws and anchors if needed. Connect labeled wires to corresponding terminals on the wallplate. Set the ELEC/GAS switch based on the system type. Set the cycle rate (Fast or Slow for hydronic systems). Install 2 AA batteries and attach the thermostat cover. Restore power.

Wiring Diagrams

Wire ColorTerminalFunction
RedR24V Power
WhiteWHeating
YellowYCooling
GreenGFan
OrangeO/BChangeover Valve

Note: For heat pumps, set O/B switch: O for cool, B for heat. Refer to old thermostat wiring for exact matches.

Check Operation

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

Fan Operation

  1. Set FAN to ON; fan should run continuously.
  2. Set FAN to AUTO; fan should run on call for heat/cool.

Heating System

  1. Set SYSTEM to HEAT.
  2. Adjust setpoint above room temperature; heating should activate.
  3. Adjust below; heating should stop.

Emergency System

  1. For heat pumps: Set SYSTEM to EMER.
  2. Adjust setpoint above room temperature; emergency heat should operate.
  3. Adjust below; emergency heat should stop.

Cooling System

CAUTION! Do not operate below 50°F.

  1. Set SYSTEM to COOL.
  2. Adjust setpoint below room temperature; cooling should activate.
  3. Adjust above; cooling should stop.

Operating Features

Programming

Non-programmable thermostat. Setpoints are manually adjusted using up/down arrows. Use Home, Sleep, and Away presets for quick temperature settings.

Installer Configuration

Set ELEC/GAS switch (GAS for gas/oil, ELEC for electric). Select cycle rate: Fast (default) or Slow (SL) for hydronic systems. Configure filter reminder and keypad lockout via menu.

OptionDefaultDescription
Cycle RateFastSet to Slow for hydronic heating
ELEC/GASGASGAS for gas/oil, ELEC for electric
O/BOO for cool, B for heat (heat pumps)

Troubleshooting

SymptomPossible CauseCorrective Action
Display blank or erraticVoltage spike/static dischargeReset: Move SYSTEM to OFF, press all three buttons, then move to HEAT while holding buttons
Heating/cooling not workingIncorrect wiring or switch settingsVerify wire connections and switch settings (FAN, SYSTEM, ELEC/GAS, O/B)
Fan not operatingFAN switch set to OFFSet FAN switch to AUTO
Filter reminder appearsFilter needs replacementReplace air filter in HVAC system
Temperature display inaccurateFactory calibration driftAdjust displayed temperature using calibration feature
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