ST27 230V 7 day programmable room thermostat with large LCD

Wired Thermostat 230V Wired Thermostat Programmable Thermostat

230V 7 Days Programmable Room Temperature Control Smart Heating Thermostat

Name: 230V 7 Days Programmable Room Temperature Control Smart Heating Thermostat
Brand: Smart Therm

ST27 in this configuration is the general purpose wired 230V programmable room thermostat, running 7 day, 5/2 day and 24 hour modes. What distinguishes it from the simpler models in the family is adjustable switching sensitivity, which lets the installer slow the cycle rate on underfloor and water heating, plus keypad lockout and a factory pre-set programme.

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Key Benefits

Adjustable switching sensitivity matches the cycle rate to the system
Three programme modes cover domestic, commercial and continuous use
Factory pre-set programme means the unit works from first power-up
Keypad lockout protects settings in shared buildings
Anti-flammable ABS housing with a large clear LCD

Problems It Solves

Underfloor slabs overshooting on a fixed switching differential
Commissioning time multiplied across a large building
Occupants altering a schedule the operator set
Displays too small to read in a hallway

Who It Is For

Underfloor and electric heating suppliers
Hotel and apartment developers
Heating contractors on scheduled installations
OEM buyers needing a pre-programmed wired stat

Technical Features

Wired 230V, 7 day, 5/2 day and 24 hour programmable
Heating and cooling operation
Switching sensitivity adjustable
Room temperature calibration adjustment
Keypad lockout
Factory pre-set programme
Large clear LCD with blue or orange backlight and low battery indicator
Anti-flammable ABS housing, 400 g, one instruction sheet per box

Specifications

Model	ST27
Backlight	Blue/
Material	Anti-Flammable ABS
Weight	400g
Package Included	1Wired thermostat 1Instruction

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

Application Scenarios

Underfloor and water heating needing a slower cycle rate
Bedrooms, hotel rooms and kitchens on scheduled heating
Offices with weekday and weekend patterns
Buildings where installers should not have to programme each unit

Quality Control

Pre-set programme verified on every unit
Switching sensitivity range checked during the functional test
High voltage insulation test on the 230V section

Customisation Options

Pre-set programme written to the buyer's specification
Backlight blue or orange
Front label, logo and housing marking
Manual and carton in the buyer's language

Comparison

How It Compares

The ST27 configuration with 8(2)A switching

This version emphasises adjustable switching sensitivity and a factory pre-set programme for underfloor and water heating work.

ST2301 non-programmable thermostat

ST27 adds scheduling, lockout and sensitivity adjustment, which is what slow responding heating systems need.

Use guide

Installing And Commissioning

Step 1

Isolate the 230V supply and mount the backplate clear of the emitter

Step 2

Land the switched conductor on the marked terminal

Step 3

Check the factory pre-set programme against the building's occupancy

Step 4

Raise switching sensitivity on underfloor and water heating

Step 5

Enable keypad lockout in shared spaces before handover

Answers