STN615 multi stage 2 heat 2 cool programmable room thermostat

Air Conditioner Thermostats HVAC Thermostat Electric and Gas Thermostat Programmable Thermostat Non-Programmable Thermostat

Multi Stage 5+2 Days Programmable Digital Room Air Conditioner Thermostat for HVAC System

Name: Multi Stage 5+2 Days Programmable Digital Room Air Conditioner Thermostat for HVAC System
Brand: Smart Therm

STN615 is a multi stage room thermostat for central air conditioning, controlling 2 heat and 2 cool. The same unit can be set to 7 day, 5/1/1 or fully non-programmable, so a distributor can cover three specifications with one part number. It uses an Omron relay, has a Fahrenheit and Celsius switch for export flexibility, and draws 2W.

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Key Benefits

One part number covers 7 day, 5/1/1 and non-programmable specifications
2 heat and 2 cool staging sequences central plant properly
F and C switch means the same stock serves several export markets
Omron relay gives a documented contact specification
White, blue or green backlight to suit the room

Problems It Solves

Three separate part numbers for the same hardware
Single stage stats short cycling two stage plant
Display units fixed to the wrong scale for the destination market
Unspecified relays making contact life unpredictable

Who It Is For

Distributors consolidating stock across several specifications
HVAC contractors on central air conditioning projects
Exporters shipping into both F and C markets
OEM buyers needing a multi stage programmable platform

Technical Features

Multi stage control, 2 heat and 2 cool
7 day, 5/1/1 programmable or non-programmable, selected in setup
Easy menu driven programming with wake, leave, return and sleep icons
Fahrenheit and Celsius switch
Display accuracy +/-1 C, 2 square inch display
Power supply battery or 24V hardwired, 2W consumption
Omron relay
Anti-flammable ABS housing in white, backlight white, blue or green

Specifications

Model	STN615
Programmability	7 day, 5/1/1 programmable or Non-programmable
Stages	2 Heat / 2 Cool
Power Supply	Battery or 24V hardwired power
Display accuracy	±1 ℃ Power Consumption 2W Dispaly 2 Square Inches
Relay	Omron
Backlight	White/Blue/Green
Color	White
Material	Anti-flammable ABS
Consumption	2W
Application	Central Air Conditioning
Type	Other Home Appliance Parts
Feature	Save Energy

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

Application Scenarios

Central air conditioning in offices and apartment blocks
Buildings with two stage heating and cooling plant
Mixed export orders needing both F and C markets served
Projects where some rooms are scheduled and others are not

Quality Control

All four staging outputs exercised on the line
Programme mode switching verified across the three settings
Omron relay tested at rated load

Customisation Options

Delivered preset to 7 day, 5/1/1 or non-programmable
Display default set to F or C for the destination
Backlight white, blue or green
Logo, manual and carton to the buyer's artwork

Comparison

How It Compares

STN605 single stage thermostat

STN615 adds a second heating and second cooling stage, which is what central plant needs to sequence correctly.

Fixed specification stats

STN615 switches between 7 day, 5/1/1 and non-programmable in setup, so one stock item covers three tender specifications.

Use guide

Installing And Commissioning

Step 1

Isolate the 24V supply and land the staging conductors

Step 2

Choose 7 day, 5/1/1 or non-programmable in the setup menu

Step 3

Set the display to Fahrenheit or Celsius for the market

Step 4

Enter the schedule if a programmable mode was selected

Step 5

Call each stage in turn and confirm the plant sequences

Answers