Trane RT-SVU010A-GB Thermostat Operation Manual

The Trane RT-SVU010A-GB is a versatile thermostat available in programmable and non-programmable models for controlling residential heating and cooling systems, including conventional and heat pump configurations. It features an LCD display for temperature, setpoints, and modes, with programmable options supporting up to four periods per day for energy-efficient scheduling. Compatible with single- and multi-stage systems, it includes automatic changeover, fan control, and optional remote sensors. Below are the key specifications and operation instructions.

Key Specifications

• Type: Programmable and non-programmable thermostats for residential HVAC
• Compatibility:
  • Conventional 1H/1C, 2H/1C, 2H/2C; Heat pump 1H/1C, 2H/1C, 2H/2C, 3H/2C with auxiliary heat
  • Fan control; economizer/TOD; remote temperature sensor
  • Single/dual transformer systems
• Power:
  • 24 VAC; maximum wire resistance 2.5 ohms
• Temperature Range: Heat: 55°F-85°F; Cool: 65°F-99°F; Deadband: 2-9°F
• Dimensions: Programmable: 4.7" H x 3.25" W x 1.08" D; Non-programmable: 4.7" H x 3.07" W x 1.1" D
• Features:
  • LCD display with symbols for modes, time, day, occupancy
  • 7-day/5+1+1/5+2 scheduling with 2/4 periods; timed override (TOV)
  • Automatic changeover; compressor off time; fan extension
  • Cycling rates: Heat 1-10 CPH, Cool 1-5 CPH
• Compliance: UL listed; professional installation required

Operation Instructions

Initial Setup

1. Power On: Apply power; thermostat runs power-up test (displays firmware version).
2. Set Time/Date: For programmable: Hold arrows + Mode + Fan + Prog for 3s; adjust hour/minute.
3. System Mode: Press Mode to cycle Off/Heat/Cool/Auto/Em Heat.
4. Fan Mode: Press Fan for Auto/On.

Home Screen Navigation

1. Display: Current temp, setpoint, mode, fan, time/day (programmable), period.
2. Toggle Views: Hold arrows for 3s to cycle temp/setpoint/outdoor (if sensor).
3. Adjust: Arrows for setpoints; Mode/Fan buttons to change.

Scheduling and Presets

(Programmable Only) 1. Enable: Press Prog; select days/periods.
2. Periods: 2 or 4 per day (e.g., morning 70°F heat/78°F cool; defaults vary).
3. TOV Override: Adjust arrows, then set duration (up to 4 hrs), fan, occupancy.
4. Non-Programmable: Manual setpoints only.

Settings Screen

1. Access: Hold config button 3s; scroll with arrows.
2. Key Settings: Temp resolution, clock format, deadband (2-9°F), CPH rates, lockouts.
3. Lock: Hold arrows 4s (icon shows).
4. Exit: Press config or wait 10 min.

Advanced Features

1. Remote Sensor: Config to display/use outdoor temp for lockouts (e.g., compressor below 45°F).
2. Aux Heat: Comfort/economy mode (non-programmable).
3. Economizer: A terminal for TOD/cool calls.
4. Extended Fan: 90s post-heat, 40s post-cool.
5. Emergency Heat: Manual activation; L terminal indicator.

Troubleshooting

• Error E0: Thermistor fault (<14°F or >122°F); check sensor, cycle power.
  
• Error E4: Voltage out of range; verify 18-32 VAC.
  
• No Operation: Check wiring, config options, CPH settings.
  
• Schedule Issues: Verify time/date; reset defaults if needed.
  
• Erratic Display: Cycle power; contact support at 1-833-298-3493.

Installation Instructions

Warning: Only qualified personnel should install. Disconnect power before wiring. Max wire resistance 2.5 ohms.

Pre-Installation

• Mount 48-54 in. above floor, away from drafts/sun/heat.
• Wire: 18-22 AWG; max length per Table (e.g., 385 ft 18 AWG).
• Tools: Level, drill, screwdriver.

Wiring Diagrams

For 3H/2C Heat Pump with Aux (jumper Rc/R if single transformer):

Terminal	Connection
Rc/R	24V Power
Y/Y2	Compressor Stages 1/2
O/B	Changeover Valve (O in Cool)
W/Aux	Aux Heat
W2/E	Emergency/Aux Heat
G	Fan
C	Common
L	Emergency Indicator
A	Economizer/TOD
S1/S2	Remote Sensor

Note: Programmable has two terminal blocks; see manual figures for dual transformer.

Configuration Options

1. Enter config mode post-install.
   
2. Set system: 11 (programmable 3H/2C HP w/aux).
   
3. Adjust CPH: e.g., Stage 1 Heat 5, Compressor 3.
   
4. Deadband: 3°F default; lockouts as needed.
   
5. Save and exit.

Calculation Tool

Estimate stage 1 runtime percentage based on temperature difference (ΔT) and cycles per hour (CPH). Assumes duty cycle = ΔT / 20 (capped at 100%); runtime % = duty cycle * 100.