Model 3105 wired 24V two stage programmable air conditioner thermostat

Wired Thermostat 24V Wired Thermostat Air Conditioner Thermostats Electric and Gas Thermostat Programmable Thermostat

2023 New Wired 24V Digital HVAC Programmable Air Conditioner Room thermostat

Name: 2023 New Wired 24V Digital HVAC Programmable Air Conditioner Room thermostat
Brand: Smart Therm

Model 3105 is a wired 24V thermostat controlling 2 heat and 2 cool on a 5/1/1 programme, with a large clear LCD and selectable backlight. It sits between the single stage 3205 and the universal STN800 range: enough staging for two stage plant, without the cost of a universal platform. Power comes from batteries or 24V, and sensing is by NTC with +/-1 C accuracy at 20 C.

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Key Benefits

2 heat and 2 cool staging at a lower cost than a universal platform
5/1/1 programme separates weekdays, Saturday and Sunday
Battery or 24V power keeps retrofits straightforward
RoHS, CE and ISO documentation for import compliance
500 pcs carton packing suits container quantities

Problems It Solves

Single stage stats short cycling two stage plant
Universal platforms costing more than the project needs
Weekend patterns handled badly by a simple programme
Loose packing on volume orders

Who It Is For

Hotel and apartment developers buying at volume
HVAC distributors needing a mid-range two stage stat
Contractors on staged plant
OEM buyers ordering full cartons

Technical Features

Wired 24V control, 2 heat and 2 cool
5/1/1 programmable schedule
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
Power supply batteries or 24V
Large clear LCD with selectable backlight colours
ABS and PC housing in white
RoHS, CE and ISO, 500 pcs carton box packing, 1 year warranty

Specifications

Model	3105
Programmability	5/1/1 Programmable
Power Supply	24V or Battery
Temperature Range	32℉-99℉ (1℃-40℃)
Display accuracy	±1°C (at 20°C)
Sensor	NTC
Color	White
Material	ABS+PC
Application	Hotel
Function	Adjustable Thermostat
Feature	Energy Saving
Certification	RoHS CE ISO
Warranty	1 Year Specification
After-sale Service	Online technical support, Return and Replacement
MOQ	500pcs Package Carton Box

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

Application Scenarios

Hotel rooms on two stage heating and cooling plant
Apartments with staged air conditioning
Commercial spaces needing weekday and weekend patterns
Volume projects buying at container quantities

Quality Control

All four staging outputs exercised on the line
Programme timing verified against a reference clock
Carton count and packing checked before shipment

Customisation Options

Default schedule preset for the buyer's building type
Backlight colour from the standard options
Front label, logo and carton artwork
Graphic design support for manuals

Comparison

How It Compares

Model 3205 single stage thermostat

3105 adds a second heating and second cooling stage for plant that sequences.

STN615 multi stage thermostat

3105 is fixed to 5/1/1, where STN615 also offers 7 day and non-programmable modes and an Omron relay.

Use guide

Installing And Commissioning

Step 1

Isolate the 24V control circuit before starting

Step 2

Land the staging conductors on the marked terminals

Step 3

Fit batteries or connect 24V power

Step 4

Enter the weekday, Saturday and Sunday periods

Step 5

Call each stage and confirm the plant sequences correctly

Answers