Models 3021 and 3221 non-programmable heat pump builder thermostat

Wired Thermostat 24V Wired Thermostat HVAC Thermostat Heat Pump Thermostat Electric and Gas Thermostat Non-Programmable Thermostat

Digital Smart Heat Pump 2Heat 1Cool Room Temperaute Calibration Adjustment Non-Programmable Wired Thermostat

Name: Digital Smart Heat Pump 2Heat 1Cool Room Temperaute Calibration Adjustment Non-Programmable Wired Thermostat
Brand: Smart Therm

3021 and 3221 are the non-programmable heat pump models in the builder series, controlling 2 heat and 1 cool. They keep the separate B and O terminals, the second stage swing adjustment and the filter change indicator, but remove the schedule entirely. For a developer handing units to first-time occupants, that removes the single biggest source of early service calls.

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Key Benefits

No schedule, which removes the main cause of handover service calls
Separate B and O terminals for either reversing valve convention
Second stage swing adjustment controls auxiliary heat
Filter change indicator prompts the occupant at the right time
PP housing in the builder series specification

Problems It Solves

Handover service calls caused by schedule confusion
Reversing valve wiring restricted to one convention
Auxiliary heat running longer than necessary
Filters left unchanged because nothing prompts the occupant

Who It Is For

House builders and developers
Housing associations and rental operators
Heat pump equipment suppliers
OEM buyers needing a builder specification non-programmable model

Technical Features

Heat pump control, 2 heat and 1 cool, non-programmable
Electric or gas configurable
Separate B and O terminals
Separate heating and cooling swing adjustments including second stage
Filter change indicator, selectable on or off
Power supply battery or 24V
White, blue or green backlight
PP housing, 400 g, supplied as one wired builder thermostat with one instruction sheet

Specifications

Model	3021/3221
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

New build housing handed over to first-time occupants
Rental apartments on heat pump systems
Developments where the operator sets a fixed policy
Heat pump systems with auxiliary electric heat

Quality Control

Both heating stages and the cooling stage exercised on the line
Filter indicator verified during the functional test
Backlight colour checked against the approved sample

Customisation Options

Backlight white, blue or green
Filter indicator interval preset to the buyer's specification
Front label, logo and housing marking
Builder pack quantities and carton artwork

Comparison

How It Compares

Models 3025 and 3225

3021 and 3221 remove the schedule from the same heat pump platform, which is what developers choose for handover units.

Models 3001 and 3201

This pair controls a heat pump with 2 heat and 1 cool, where 3001 and 3201 are single stage conventional.

Use guide

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

Step 4

Set the second stage swing so auxiliary heat does not overrun

Step 5

Enable the filter change indicator and test both heating stages

Answers