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PRO1 IAQ Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/7 Day, Horizontal, Rectangle - Standard Thermostats
PRO1 IAQStandard Thermostats

PRO1 IAQ Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/7 Day, Horizontal, Rectangle

The PRO1 IAQ T855SH is a low-voltage thermostat for heat and cool applications, featuring a rectangular shape and push-button control. It supports 2H/3C conventional and 5H/3C heat pump staging with automatic…

SKU 3G-OTH-70518

Brand
PRO1 IAQ
Item
Low Voltage Thermostat: Heat and Cool, Auto, 5-1-1/7 Day, Horizontal, Rectangle
Category
Standard Thermostats
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Technical Specifications

PRO1 IAQ
Manufacturer Part Number
T855SH
Type
Auto, Horizontal, Rectangle, Horizontal
Day
5-1-1/7
Shape
Rectangle
Stages
2H/3C Conventional, 5H/3C Heat Pump
Application
Heat and Cool
Control Type
Push Button
Changeover Type
Automatic
Mounting Direction
Horizontal
Terminal Designations
D
Humidification Control
Yes
Programming Capability
5-1-1
Temperature Control Range
44° to 90°F
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PRO1 IAQ Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PRO1 IAQ T855SH is a low-voltage thermostat for heat and cool applications, featuring a rectangular shape and push-button control. It supports 2H/3C conventional and 5H/3C heat pump staging with automatic changeover, a 5-1-1 programming capability, and a temperature control range of 44° to 90°F. This model includes humidification control and is designed for horizontal mounting with terminal designation D.

Frequently Asked Questions

What is the PRO1 IAQ T855SH thermostat used for?

The PRO1 IAQ T855SH is a low-voltage thermostat for residential or light-commercial heat and cool applications. It supports 2H/3C conventional and 5H/3C heat pump staging with automatic changeover, making it suitable for multi-stage HVAC systems requiring precise temperature control from 44° to 90°F.

What are the specifications of the PRO1 IAQ T855SH thermostat?

The PRO1 IAQ T855SH is a rectangular, push-button thermostat with 5-1-1 programming capability. It supports 2H/3C conventional or 5H/3C heat pump staging, automatic changeover, and a temperature range of 44° to 90°F. It includes humidification control, terminal designation D, and is designed for horizontal mounting.

Where to buy the PRO1 IAQ T855SH thermostat worldwide?

3G Electric supplies the PRO1 IAQ T855SH thermostat to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this model to meet your project needs.

How to install the PRO1 IAQ T855SH thermostat?

Install the PRO1 IAQ T855SH thermostat on a horizontal wall surface, away from direct sunlight or drafts. Connect wires to terminal designation D per the system’s wiring diagram. Ensure power is off before installation. For multi-stage systems, verify compatibility with 2H/3C conventional or 5H/3C heat pump staging.

Used in

Common applications for PRO1 IAQ
Commercial HVAC maintenance — PRO1 IAQ T855SH thermostat for multi-stage heat pump control in office buildings
Facility energy management — PRO1 IAQ T805 programmable thermostat for 7-day scheduling in retail spaces
Light commercial retrofit — PRO1 IAQ T501M analog thermostat for simple heat/cool control in small shops
Indoor air quality monitoring — PRO1 IAQ R751WO wireless sensor for temperature and motion detection in conference rooms
Heat pump system replacement — PRO1 IAQ T625-2 thermostat for 2H/1C heat pump staging in residential units
Thermostat guard replacement — PRO1 IAQ T150K replacement keys for securing T150 plastic guards in public areas

PRO1 IAQ Products

3G Electric supplies PRO1 IAQ standard thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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