STN731W universal PTAC thermostat with base module and backlit LCD

Wireless Thermostat 24V Wireless Thermostat Air Conditioner Thermostats Non-Programmable Thermostat

24 V AC General Electric Wireless Air Conditioner Thermostat

Name: 24 V AC General Electric Wireless Air Conditioner Thermostat
Brand: Smart Therm

STN731W is a wired PTAC thermostat supplied with its own base module, aimed at hotel rooms running packaged terminal air conditioners. It is universal across 2 heat and 1 cool heat pump systems and 1 heat and 1 cool conventional systems, keeps separate B and O terminals, and enforces heating and cooling setpoint limits. Power consumption is 2W from 24 V AC or batteries.

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Key Benefits

Supplied as a thermostat and base module set, so a PTAC room is one order line
Universal across heat pump and conventional PTAC equipment
Setpoint limits stop guests running the unit outside its design range
Separate heating and cooling swing adjustment tunes cycle rate per mode
Fireproof PC and ABS housing with four backlight colours

Problems It Solves

Sourcing thermostat and base module separately for each PTAC room
Guests setting temperatures the packaged unit cannot hold
Separate part numbers for heat pump and conventional PTACs
Cycle rates that suit heating but not cooling

Who It Is For

Hotel groups refurbishing PTAC rooms
PTAC equipment distributors
Facility teams standardising one control across mixed units
OEM buyers needing a thermostat plus base module set

Technical Features

Universal, 2 heat and 1 cool heat pump or 1 heat and 1 cool conventional
Wired PTAC thermostat supplied with base module and universal sub-base
Temperature range 32 F to 99 F (1 C to 40 C), setpoint range 44 F to 90 F (7 C to 32 C)
Display accuracy +/-1 C at 20 C, NTC sensor
Separate B and O terminals, separate heating and cooling swing adjustments
Heating and cooling setpoint limits, room temperature calibration
Load rating 1 amp per terminal, 1.5 amp maximum all terminals combined, 2W consumption
Power supply 24 V AC or batteries, PC and ABS fireproof housing, 120 x 98 x 28 mm

Specifications

Model	STN731W
Programmability	Non-programmable
Stages	1 HEAT & 1COOL
Power Supply	24 VAC or Batteries Power
Switchable Voltage	24 V AC & Batteries
Load rating	1 amp per terminal, 1.5 amp maximum all rerminal combined
Temperature Range	32℉ to 99℉ (1℃ to 40℃)
Setpoint Range	44℉ to 90℉ (7℃ to 32℃) Power Consumption 2W
Display accuracy	±1°C (at 20°C)
Sensor	NTC
Backlight	Blue/Green/White/Orange
Material	PC+ABS (Fireproof)
Dimension	120 x 98 x 28 MM
Installation	Mounts on wall or junction box Dispaly 4.5 sq.Inch Operating ambient 32℉ to +105℉ (1℃ to +41℃)
Consumption	2W
Operating Humidity	90% non-condensing maximum
Application	Hotel
Warranty	2 years
After-sale Service	Online technical support, Onsite Installation, Onsite Training, Onsite Inspection, Free spare parts, Return and Replacement, NONE

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

Application Scenarios

Hotel rooms on packaged terminal air conditioners
Motel and serviced apartment refurbishments
Care and student accommodation with through-wall units
Estates mixing 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
Housing flammability grade recorded against the production batch

Customisation Options

Setpoint limits preset to the hotel's policy
Backlight blue, green, white or orange
Front label, logo and housing marking
Swing defaults set for the buyer's PTAC equipment

Comparison

How It Compares

Standard room thermostats

STN731W ships with a matched base module for PTAC equipment, which is not something a general purpose wall stat provides.

Separate heat pump and conventional stats

One universal unit covers both, so a mixed hotel estate carries a single spare part.

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 hotel's policy

Step 5

Adjust heating and cooling swing separately, then test each stage

Answers