Trane Z-Wave TZEMT400AB32MAA Thermostat Operation Manual

The Trane Z-Wave TZEMT400AB32MAA is a communicating thermostat for controlling heating and cooling HVAC systems, featuring Z-Wave RF communications for remote control. It includes a large backlit graphical LCD display, soft key navigation, scheduling up to 4 periods per day, energy usage graphs, filter/maintenance alerts, and compatibility with standard gas/electric and heat pump systems up to 2 stages compressor and 3 stages aux heat. Below are the key specifications and operation instructions.

Key Specifications

• Power: 24 VAC from HVAC system; RH/RC internally jumpered (cut for split transformers)
• Operating Conditions: Setpoints: Heat 55°F-90°F (12°C-32°C), Cool 60°F-99°F (15°C-37°C); Staging deltas 1-3°F
• Storage Conditions: Not specified
• Sensor: Internal; Calibration ±7°F
• Setpoint Ranges:
  • Cooling: 60°F to 99°F
  • Heating: 55°F to 90°F
• Temperature Range (Display): Not specified
• Dimensions: 5.7” W x 4.0” H x 1.2” D
• Compatibility: Gas/electric (1-2 stages), Heat pump (1-2 compressor stages, 1-3 aux heat); Z-Wave V2 for remote control
• Features:
  • Graphical LCD (2.75” x 1.5”, 64x128 pixels); Backlit with timeout; 4 LEDs (3 green, 1 red); Soft keys
  • 7-day scheduling (4 periods); Usage graphs; Filter/maintenance alerts; Z-Wave inclusion/exclusion
  • Min run/off times (1-9 min run, 5-15 min off); Clock (12/24 hr); F/C selection; Display lock
• Compliance: 1-year limited warranty; National codes

Operation Instructions

Initial Setup

1. Power On: Connect 24 VAC; display activates.
2. Set Time/Date: Menu > User Settings > Set Clock; adjust with +/-; press SET.
3. Set Mode/Fan: Press MODE (Off/Heat/Cool/Auto/Em Heat), FAN (Auto/On).
4. Z-Wave: Press learning button on back for inclusion/exclusion; follow controller instructions.

Home Screen Navigation

1. Display: Temp, setpoint, clock, mode/fan; LEDs for status (Sys Off/WAIT/Heat/Cool).
2. Controls: Soft keys for functions; Up/Down for setpoints; MENU for options.
3. Indicators: LEDs (green system/fan, red alerts); Backlight timeout adjustable.

Operating Modes

1. Off: No operation.
2. Heat: Activates stages below setpoint; LED on.
3. Cool: Activates stages above setpoint; LED on.
4. Auto: Changeover between heat/cool.
5. Em Heat: Aux heat for heat pumps.
6. Fan: Auto or On.

Settings Screen

1. Access: Press MENU > User Settings.
2. Options: Clock, sensor calibration (±7°F), backlight/contrast, filter/maintenance timers, F/C.
3. Schedules: Enable in installer; set 4 periods/day.
4. Alerts: Filter/Maint based on runtime; reset after service.

Advanced Features

1. Scheduling: 7-day, 4 periods; copy days; heat/cool setpoints.
2. Z-Wave: Remote mode/setpoint/fan control; node ID in info screen.
3. Usage Graph: Weekly heat/cool runtime.
4. Staging: Auto based on deltas/MRT/MOT.
5. Display Lock: Installer option.

Troubleshooting

• No Display: Check 24 VAC wiring.
  
• No Heat/Cool: Verify mode/setpoint, delays (MOT 5-15 min); check installer setup.
  
• Z-Wave Issues: Retry inclusion; check node ID.
  
• Alerts: Red LED/Filter/Maint—reset timers after service.
  
• Calibration: Adjust sensor offset.
  
• Persistent: Contact Trane service.

Installation Instructions

Warning: Qualified personnel only. Disconnect power. Follow lockout/tagout.

Pre-Installation

• Location: Interior wall, away from drafts/heat.
  
• Tools: Wire strippers, screwdriver.
  
• Wire: 18-22 AWG.

Wiring Diagrams

Terminal Designations (Heat Pump Example):

Terminal	Description
24COM	24V Common
24RC	24V Hot (Cooling)
24RH	24V Hot (Heating)
W1	Aux/Em Heat Stage 1
W2	Aux Heat Stage 2
G	Fan
Y1	Compressor Stage 1
Y2	Compressor Stage 2
O/B	Reversing Valve

Notes: Jumper RC/RH default; cut for dual transformers. Set system type in installer menu.

Configuration Options

1. Mount and wire per diagram.
   
2. Power up; access Installer Settings: System type, stages, deltas, MRT/MOT.
   
3. Z-Wave inclusion.
   
4. Test modes/setpoints.
   
5. Set schedules/clock.

Calculation Tool

Estimate monthly energy savings from scheduling (assumes 3°F setback saving 0.12 kWh per hour unoccupied; 30 days/month).