Easy Menu Driven Programmable Heat Pump 2Heat 1Cool Room Temperaute Calibration Adjustment Wired Thermostat (STN625/STN725)
STN625 and STN725 are the programmable heat pump models in the STN builder series, controlling 2 heat and 1 cool. They can be set to 7 day, 5/1/1 or non-programmable, keep separate B and O terminals, and offer swing adjustments that include the second stage so auxiliary heat only runs when the first stage cannot hold the room.
Key Benefits
- Second stage swing adjustment limits auxiliary heat running time
- Three programme modes from one part number
- Separate B and O terminals for either reversing valve convention
- Filter change indicator and selectable 5 minute compressor delay
- Builder series PP housing with white, blue or green backlight
Problems It Solves
- Auxiliary heat running longer than the building needs
- Separate part numbers for scheduled and unscheduled units
- Reversing valve wiring limited to one convention
- Compressor restarts too soon after a supply interruption
Who It Is For
- House builders and developers
- Heat pump equipment suppliers
- HVAC contractors on residential projects
- OEM buyers needing a builder specification heat pump model
Technical Features
- Heat pump control, 2 heat and 1 cool
- 7 day, 5/1/1 or non-programmable
- Easy menu driven programming with wake, leave, return and sleep icons
- Electric or gas configurable with separate B and O terminals
- Separate heating and cooling swing adjustments including second stage
- Room temperature calibration adjustment
- Filter change indicator and 5 minute compressor delay protection, both selectable
- Battery or 24V power, PP housing, white, blue or green backlight, 400 g
Specifications
| Model | STN625/STN725 |
| Programmability | 7 Day,5/1/1 or |
| 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
- Heat pump systems with auxiliary electric heat
- New build housing and apartment developments
- Buildings mixing scheduled and unscheduled units
- Retrofits replacing failed builder grade heat pump stats
Quality Control
- Both heating stages and the cooling stage exercised on the line
- Second stage swing range verified during the functional test
- Compressor delay timing checked on batch samples
Customisation Options
- Default programme mode preset at the factory
- Backlight white, blue or green
- Swing defaults set for the buyer's heat pump equipment
- Builder pack quantities and carton artwork
How It Compares
Installing And Commissioning
Step 1
Isolate the 24V control circuit before removing the existing control
Step 2
Land the conductors, using B or O as the reversing valve requires
Step 3
Select electric or gas configuration and the programme mode
Step 4
Set the second stage swing so auxiliary heat does not overrun
Step 5
Enable the compressor delay and filter indicator, then test each stage
Easy Menu Driven Programmable Heat Pump 2Heat 1Cool Room Temperaute Calibration Adjustment Wired Thermostat: Buyer Questions
What is the difference between STN625 and STN725?
They are the two variants of the same builder series heat pump model. Tell us your market and we will confirm which part number applies.
Can they be supplied non-programmable?
Yes. 7 day, 5/1/1 and non-programmable are all selectable.
How is auxiliary heat controlled?
Through the second stage swing adjustment, which is set separately from the first stage.
What is the housing material?
PP.
What power supply do they take?
Battery or 24V power.
What is in the box?
One wired builder thermostat and one instruction sheet.
Related Products
Wired Thermostat
LCD Gas Boiler 230V Non-programmable Digital Wired Gas Boiler Heating Thermostat for HVAC System
View specification
Wired Thermostat
230V Electronic Weekly Programmable Gas Boiler Room Thermostat for Underfloor Heating Control
View specification
Wired Thermostat
220V Non-Programmable Digital Heating Wired Gas Boiler Thermostat with Battery Supply
View specification
Wired Thermostat
230V Dial Button Wired Non-programmable Gas Boilers Room Thermostat for Heating
View specificationWhere This Product Fits
Quote The Easy Menu Driven Programmable Heat Pump 2Heat 1Cool Room Temperaute Calibration Adjustment Wired Thermostat
Send us the quantity, the destination market and any branding or firmware changes you need. Samples ship within 30 days and bulk orders in 15 to 45 days.