- User Manual For Iphone
- User Manual Pdf
- Pro Thermostat 855 User Manual Heat Pump Thermostat With Emergency Heat
- Pro Thermostat 855 User Manual Heat Pump Troubleshooting
- Pro 855 Thermostat Reset
- Pro Thermostat 855 User Manual Heat Pump Parts
- Pro 1 Thermostat Manual
Apr 15, 2018 This thermostat is capable of controlling a number of different types of heating and cooling systems, from a simple gas furnace and air conditioner, to a more complex heat pump system.
4
3
2
1
Power supply
Factory-installed jumper. Remove only when installing on 2-transformer systems
Use either O or B terminals for changeover valve
A 24 VAC common connection is required with this thermostat.
5
4
2
1
COMPRESSOR
RELAY
FAN RELAY
HEAT RELAY
C
R
L2
L1 (HOT)
Typical 2H/2C system: 1 transformer
Typical 2H/2C system: 2 transformer
COMPRESSOR
RELAY
FAN RELAY
HEAT RELAY
4
2
1
C
R
L2
L1 (HOT)
1
C
R
L2
L1 (HOT)
REMOVE JUMPER
Typical heat-only system
HEAT RELAY
4
2
1
C
R
L2
L1 (HOT)
FAN RELAY
4
2
1
C
R
L2
L1 (HOT)
COMPRESSOR
RELAY
Typical cool-only system
Typical heat-only system with fan
FAN RELAY
4
2
1
C
R
L2
L1 (HOT)
HEAT RELAY
Typical 3H/2C heat pump system
FAN RELAY
1
C
R
L2
L1 (HOT)
COMPRESSOR
RELAY
COOL CHANGE OVER
VALVE
4
O
B
COMPRESSOR
RELAY 2
HEAT RELAY 2
COMPRESSOR
RELAY 2
HEAT RELAY 2
HEAT CHANGE OVER
VALVE
COMPRESSOR
RELAY 2
AUXILIARY
User Manual For Iphone
2
3
NOTE:
In many heat pump systems with no emergency heat relay a jumper can be installed between E and W2.
WIRING
EMERGENCY HEAT
RELAY
User Manual Pdf
INSTALLATION MANUAL
4
5-6
7-11
12-15
16
Installation Tips
Themostat Quick Reference
Subbase Installation
Wiring
Technician Setup Menu
Features and Specifications
2
3
Thermostat Applications Guide
Table of Contents
Page
Description
Gas or Oil Heat
Electric Furnace
Heat Pump (No Aux. or Emergency Heat)
Heat Pump (with Aux. or Emergency Heat)
Multi-stage Systems
Heat Only Systems
Cool Only Systems
Millivolt
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Hardwire (24 VAC Common Wire)
Power Type
1
Programming
Pro Thermostat 855 User Manual Heat Pump Thermostat With Emergency Heat
Rev. 1429
A trained, experienced technician
must install this product.
Carefully read these instructions. You
could damage this product or cause a
hazardous condition if you fail to follow
these instructions.
Pro Thermostat 855 User Manual Heat Pump Troubleshooting
Patents and Trademarks pending.
Pro 855 Thermostat Reset
Copyright © 2013. All rights reserved.
Una versión en español de este
manual se puede descargar en la
página web de la compañía.
Pro Thermostat 855 User Manual Heat Pump Parts
T855
i
MENU AUTO HEAT
Upstairs
Heat
Cool
Off