STN731 wired PTAC thermostat and base module with universal sub-base

Wired Thermostat 24V Wired Thermostat PTAC Thermostat Non-Programmable Thermostat

Affordable Wall Mounted Heating And Cooling Room Temperature Calibration Adjustment Non-Programmable Wired Thermostat

Name: Affordable Wall Mounted Heating And Cooling Room Temperature Calibration Adjustment Non-Programmable Wired Thermostat
Brand: Smart Therm

STN731 is the wired PTAC control in the builder series, supplied as a thermostat and base module with a universal sub-base. It is universal across 2H/1C heat pump and 1H/1C conventional equipment, non-programmable, and keeps separate B and O terminals plus heating and cooling setpoint limits. It mounts on a wall or a junction box and runs from battery or 24V power.

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Key Benefits

Thermostat and base module supplied together for PTAC equipment
Separate B and O terminals for either reversing valve convention
Setpoint limits cap guest and tenant adjustment
Universal sub-base mounts on a wall or a junction box
Builder series PP housing with white, blue or green backlight

Problems It Solves

Sourcing thermostat and base module from different suppliers
Reversing valve wiring restricted to one convention
Occupants setting temperatures the unit cannot hold
Cycle rates that suit heating but not cooling

Who It Is For

Hotel and accommodation operators
PTAC equipment distributors
Contractors on volume PTAC refurbishments
OEM buyers needing a wired PTAC set

Technical Features

Wired PTAC thermostat supplied with base module, non-programmable
Universal 2H/1C heat pump or 1H/1C conventional
Heating and cooling setpoint limits
Separate B and O terminals
Separate heating and cooling swing (cycle rate) adjustments
Room temperature calibration adjustment
Mounts on wall or junction box with a universal sub-base
Battery or 24V power, PP housing, white, blue or green backlight, 400 g

Specifications

Model	STN731
Color	White/Blue/
Material	PP
Weight	400g
Package Included	1Wired Builder Thermostat 1Instruction

Specifications are taken from the manufacturer data for this model. Confirm the exact configuration with us before you order.

Application Scenarios

Hotel and motel rooms on packaged terminal air conditioners
Student and care accommodation with through-wall units
Volume refurbishments of PTAC estates
Mixed heat pump and conventional PTAC equipment

Quality Control

Thermostat and base module tested as a matched set
Setpoint limit enforcement verified during the functional test
Both reversing valve conventions exercised on the line

Customisation Options

Setpoint limits preset to the operator's policy
Backlight white, blue or green
Front label, logo and housing marking
Builder pack quantities and carton artwork

Comparison

How It Compares

STN731RF wireless version

STN731 is the wired set, for installations where the control cable to the PTAC already exists.

STN731W

STN731 has no network connection, so it suits sites where remote access is not wanted or permitted.

Use guide

Installing And Commissioning

Step 1

Isolate the PTAC control supply before removing the existing control

Step 2

Fit the base module to the unit and the thermostat to the universal sub-base

Step 3

Land the conductors, using B or O as the reversing valve requires

Step 4

Set heating and cooling setpoint limits to the operator's policy

Step 5

Adjust heating and cooling swing separately and test each mode

Answers