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Resources Specifications Overview Parts & accessories Replacement products
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| Application | Add up to 4 zones to an HZ432 panel for a maximum of 32 zones |
|---|---|
| Approvals and Standards | Complies with FCC Class B, part 15 requirements |
| Product Height | 13.42|341 |
| Product Length | 8|203 |
| Product Weight | 1.86 |
| Color | Gray |
| Checkout Procedure | Yes |
| Display Type | LCD Screen |
| LED Functions | Zones |
| Number of Expanded Zones | 4 for each panel up to 32 zones |
| Ambient Operating Temperature (Max) | 165° F|74° C |
| Ambient Operating Temperature (Min) | -40° F|-40°C |
| Shipping and Storage Temperature (Min) | -20° F|-29° C |
| Shipping and Storage Temperature (Max) | 150° F|66° C |
| Operating Voltage | 24 VAC |
| Supply Voltage | 18-30 VAC|Transformer 40 VA or more |
| Terminal Connection | Push in Terminals|18 or 20 gauge solid |
| Expandable | Yes |
- Flexible mounting options with mounting holes for return duct, wall, or stud
- Easy wiring with Push terminals
- Easy checkout with LCD and buttons
- Easy troubleshooting with Checkout mode, zone lights, and contacts to measure voltage
- Same profile as HZ432 for clean installation
- Connections for tying wires for neat installation
- Each zone has thermal fuse protection
- Compatible with most 24 volt thermostats
- Resideo makes a full line of Zoning products (Zone panels, zone dampers, bypass dampers, thermostats, etc.)
Accessories (3)
| Image | SKU | Name | |
|---|---|---|---|
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s-at140a1042-u | Universal mount transformer | Sign In to View Pricing |
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s-at175a1008-u | General Purpose Transformer with Foot Mounting | Sign In to View Pricing |
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s-sdcr-u | Secondary Damper Control Relay | Sign In to View Pricing |
Replacement Parts (3)
| Image | SKU | Name | |
|---|---|---|---|
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s-at140a1042-u | Universal mount transformer | Sign In to View Pricing |
![]() |
s-at175a1008-u | General Purpose Transformer with Foot Mounting | Sign In to View Pricing |
![]() |
s-sdcr-u | Secondary Damper Control Relay | Sign In to View Pricing |
Direct Replacement (3)
| Image | SKU | Name | |
|---|---|---|---|
![]() |
s-at140a1042-u | Universal mount transformer | Sign In to View Pricing |
![]() |
s-at175a1008-u | General Purpose Transformer with Foot Mounting | Sign In to View Pricing |
![]() |
s-sdcr-u | Secondary Damper Control Relay | Sign In to View Pricing |
Functional Replacement (3)
| Image | SKU | Name | |
|---|---|---|---|
![]() |
s-at140a1042-u | Universal mount transformer | Sign In to View Pricing |
![]() |
s-at175a1008-u | General Purpose Transformer with Foot Mounting | Sign In to View Pricing |
![]() |
s-sdcr-u | Secondary Damper Control Relay | Sign In to View Pricing |
Universal Replacement (3)
| Image | SKU | Name | |
|---|---|---|---|
![]() |
s-at140a1042-u | Universal mount transformer | Sign In to View Pricing |
![]() |
s-at175a1008-u | General Purpose Transformer with Foot Mounting | Sign In to View Pricing |
![]() |
s-sdcr-u | Secondary Damper Control Relay | Sign In to View Pricing |


