Pro Thermostat 855 User Manual Heat Pump

Posted : admin On 12/20/2021

T855

  1. Pro Thermostat 855 User Manual Heat Pump Parts
  2. Instruction Manual
  3. Carrier Heat Pump Thermostat Manual
  4. Pro Thermostat 855 User Manual Heat Pump Thermostat With Emergency Heat

Pro1 products are designed to maximize the comfort in your home while saving you money and energy. Our products are designed to be simple to use with years of reliable performance.

Universal
Residential/Light Commercial

Up to 2 Heat, 2 Cool Conventional
Up to 3 Heat, 2 Cool Heat Pump
Battery or Hardwire

7 Day, 5/1/1 or Non-Programmable

The display range of temperature
41˚F to 95˚F (5˚C to 35˚C)
The control temperature range
44˚F to 90˚F (7˚C to 32˚C)
Load rating
1 amp per terminal, 1.5 amp maximum all terminals combined
Display accuracy
± 1 °F
Swing (cycle rate or differential)
Heating is adjustable from 0.2°F to 2.0°F - Cooling is adjustable from 0.2°F to 2.0°F
Power source
18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire (common wire)
Battery power from 2 AA Alkaline Energizer batteries
Operating ambient
32° to +105° (O° to + 41°C)
Operating humidity
90% non-condensing maximum
Dimensions of thermostat
4.7'W x 4.4'H x 1.1'D
  • 7 Day or 5/1/1 progammable

  • Auto Changeover

  • Easy menu driven programming

  • Intuitive wake, leave, return, sleep programming icons

  • 8 sq. inch display

  • Blue backlight

  • Glow in the dark light button

  • Programmable fan

  • Electric or Gas configurable

  • Room temperature calibration adjustment

  • Separate heating and cooling swing (cycle rate) adjustments

  • Keypad lockout

  • Heating and cooling setpoint limits

  • 5 minute compressor delay protection (selectable on or off)

  • Filter change indicator(selectable on or off)

  • Simple private label badge system

  • Easy wire color coded terminal blocks

  • Universal sub-base

  • Mounts on wall or junction box

  • Battery or 24v power

  • 5 year warranty

We Are Here For You.

ABOUT

At Pro1, we put people first in everything
we do. We do everything we can to make
every customer, partner, and employee a
lifelong member of the Pro1 family.
Read More...

EVENTS

Come Visit Us At:

AHR EXPO 2020
2.3.20 – 2.5.20
Orange County Convention Center
Orlando, FL
Visit Us

LOCATIONS

Management Office
Boulder, CO

Distribution Center
Springfield, MO

Quality Control
Springfield, MO

CONTACT

[email protected]

1-888-PRO1-IAQ
(1-888-776-1427)

Toll Number (outside the US):
417-720-1435

Terms and Conditions Warranty Policy Sitemap Wi-Fi Privacy Policy Wi-Fi Terms & Conditions
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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

Pro Thermostat 855 User Manual Heat Pump Parts

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

Instruction Manual

1

C

R

L2

L1 (HOT)

Heat

COMPRESSOR

RELAY

COOL CHANGE OVER

VALVE

Pro Thermostat 855 User Manual Heat Pump

4

O
B

COMPRESSOR

RELAY 2

HEAT RELAY 2

COMPRESSOR

RELAY 2

HEAT RELAY 2

HEAT CHANGE OVER

VALVE

COMPRESSOR

RELAY 2

AUXILIARY

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

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