Install Instructions

Programmable Touchscreen Thermostat
1
Specifications
2
Installation and Wiring
3
Quick Reference
4
Installer Settings
5
System Testing
To prevent damage to the thermostat, never use a sharp instrument
to press the touchscreen keys. Always press keys with your fingers.
Attention
• Possible electric shock or damage to equipment can occur.
• Disconnect power before beginning installation.
Caution
This thermostat requires 24 Volt AC Power or 2 properly installed “AA Alkaline batteries for proper
operation.
When connecting 24 Volt AC Power the batteries may be installed as a backup. Thermostat
installation and all components of the system shall conform to Class II Circuits per NEC code.
For use only as described in this manual. Any other use will void warranty.
6425
Up to 4 Heat / 2 Cool Heat Pump
Up to 3 Heat / 2 Cool Conventional
with Humidity Control
Warning
For installation by experienced service technicians only.
®
6425-100-01
Installer Guide
Touchscreen
®
This thermostat is compatible with:
Single stage heat / cool conventional and heat pump systems
Conventional systems up to 3 stages of heating and 2 stages of cooling
Heat pump systems up to 4 stages of heating and 2 stages of cooling
250 – 750 millivolt heating only systems
Electrical and control specifications:
Electrical Rating: 24 Volt AC
1 amp maximum load per terminal
AC Power: 18 – 30 Volts AC
DC Power: 3.0 Volt DC (2 “AAAlkaline
Batteries Included)
Control Range: 45° – 90° F (7° – 32° C)
Temperature Accuracy: +/- 1° F (+/- .5° C)
Outdoor Temperature Display Range:
-40° - 120° F (-40° - 49° C)
Humidification Specifications
Humidification Control Range: 10% - 50% RH
Dehumidification Control Range: 40% - 80% RH
1
Specifications
Terminations
Rc, Rh, G, W1/E/AUX1, W2/AUX2, W3/O/B, Y1, Y2, C,
L, H, A/D, S1, S2

Summary of content (16 pages)