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ST-3E Control Panel
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ST-3E has been discontinued
Discontinued December 18, 2025
This product was discontinued by the manufacturer.
MANUALS (1)
This item replaces: ST-3, ST-2E
Suggested Alternative:
Product Highlights
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3
1 Heat/1 Cool
10" Length
9" Width
1-9/16" Depth
24V
Description
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Model ST series panels are for single stage heating and cooling with manual changeover. Zone 1 is the "master" zone which controls the heating and cooling mode and also the fan operation. The ST-2 is a 2 zone panel. Zone 2 will only operate in the same mode that the zone 1 thermostat is in. Each thermostat can turn the system "on" and "off ", but only in the same mode. It is recommended that zone 2 has no switching subbases for the thermostats. The ST panels can be used with mechanical or digital programmable thermostats that are non-power stealing.
Open-Close switches on the control panels near the damper terminal blocks allow for continuous air circulation. This switch controls the damper position when the heating and air conditioning system is at rest. The ST panels can be wired together to create larger zoning systems up to 6 zones.
Open-Close switches on the control panels near the damper terminal blocks allow for continuous air circulation. This switch controls the damper position when the heating and air conditioning system is at rest. The ST panels can be wired together to create larger zoning systems up to 6 zones.
Specs
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| Product Type: | Control Panel |
|---|---|
| Number of Zones: | 3 |
| Stages: | 1 Heat/1 Cool |
| Changeover: | Manual |
| Length (Inches): | 10" |
| Width (Inches): | 9" |
| Depth (Inches): | 1-9/16" |
| Voltage: | 24V |
| VA Rating: | 40 |
| Hertz: | 60 |
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Product Reviews
5 out of 2 reviews
100% would recommend this product
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Showing 1-2 of 2 reviews
Best customer service!
The first item was damaged during transit. Not an issue of SupplyHouse, but on contacting them, they shipped a new part out the same day, provided a return label, and made the process as painless as possible. Fantastic service!!
Jon
Maine
9 months ago
Verified Buyer
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First heat pump zone control I used
Ewc makes the best zoning products and customer support is excellent
Burnt wires
Brewster New York
4 years ago
Verified Buyer
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