2 Heat 1 Cool Heat Pump Thermostat
STN1320 is the non-programmable member of the same heat pump platform as STN2320. It drives 2 heat and 1 cool stages, keeps the separate B and O terminals and the compressor protection, but removes the schedule from the user interface. That makes it the right choice for rentals, holiday lets and social housing where a fixed setpoint causes fewer service calls than a schedule nobody understands.
Key Benefits
- No schedule means no mis-programmed setbacks and fewer tenant call backs
- Separate B and O terminals cover both reversing valve conventions
- Second stage swing adjustment keeps auxiliary heat from running longer than needed
- White, blue or green backlight matches the rest of a building's control fit-out
- Battery or 24V power, so it drops into wiring that has no common conductor
Problems It Solves
- Tenants overriding schedules and driving up energy use
- Service visits caused by clock and schedule confusion
- Reversing valve miswiring on mixed equipment estates
- Compressor damage from rapid restart after a power cut
Who It Is For
- Housing associations standardising heat pump controls across a portfolio
- Hotel groups specifying a simple guest facing control
- HVAC distributors serving the replacement market
- OEMs shipping a basic controller with an entry level heat pump
Technical Features
- Heat pump control with 2 heat and 1 cool stages, non-programmable
- Temperature range 32 F to 99 F (1 C to 40 C), control range 44 F to 90 F (7 C to 32 C)
- Measurement accuracy +/-1 C at 20 C with room temperature calibration adjustment
- Electric or gas configurable with separate B and O terminals
- Separate heating and cooling swing adjustment including second stage
- Heating and cooling setpoint limits to cap tenant adjustment
- Filter change indicator, selectable on or off
- 5 minute compressor delay protection, selectable on or off
Specifications
| Programmability | Non Programmable |
| Power Source | DC 2 x AAA 1.5V Alkaline batteries 24VAC (18~30VAC), 50/60 Hz for hardwire (common wire) |
| Temperature Range | 32˚F-99˚F (1°C-40°C) |
| Control Temp.Range | 44˚F-90˚F (7°C-32°C) |
| Temp.Meas.Accuracy | ±1°C (at 20°C) |
Specifications are taken from the manufacturer data for this model. Confirm the exact configuration with us before you order.
Application Scenarios
- Rental apartments where the landlord sets the temperature policy
- Hotel guest rooms on packaged heat pump units
- Social housing retrofits replacing failed mechanical stats
- Small offices that run one comfort setpoint through the working day
Quality Control
- Functional test of heat, cool and fan outputs on every unit
- Backlight and display segment check before packing
- Sample units pulled from each batch for a temperature accuracy audit
Customisation Options
- Setpoint limits preset at the factory to the buyer's policy
- Backlight colour fixed to white, blue or green
- Logo printing on housing, instruction sheet and carton
- Custom carton and barcode for retail channels
How It Compares
Installing And Commissioning
Step 1
Switch off the 24V supply and photograph the existing wiring before removal
Step 2
Land the conductors on the colour coded terminal block, using B or O as the system requires
Step 3
Select electric or gas configuration in the installer menu
Step 4
Set heating and cooling setpoint limits if occupant adjustment must be capped
Step 5
Fit batteries where there is no common wire and check both heat and cool calls
2 Heat 1 Cool Heat Pump Thermostat: Buyer Questions
Can the STN1320 be locked to a temperature band?
Yes. Heating and cooling setpoint limits are set in the installer menu, so occupants can only adjust within the range you allow.
Does it support auxiliary or emergency heat?
It controls 2 heat stages, so the second stage can be wired to auxiliary heat with its own swing adjustment.
What power supply does it need?
Battery or 24V power. Both options are on the same board, so the installer chooses on site.
Can we order it with our own brand on the front?
Yes. We provide OEM and ODM service including housing marking, instruction sheets and packaging.
What is the delivery time?
Samples ship within 30 days and bulk orders take 15 to 45 days depending on quantity and customisation.
Is a wiring diagram available before we order?
Yes. Message us on WhatsApp with the model and we will send the wiring diagram and the installation manual.
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Quote The 2 Heat 1 Cool Heat Pump 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.