Thermostats & Controls
ITEM NUMBER : SR502-4 | Thermostats & Controls
The Taco Enhanced Switching Relays are ideal for zoning applications, providing advanced timer and boiler functions with external diagnostic lights. These thermostats and controls simplify HVAC systems with switchable priority and contractor-friendly PC board layouts. The Taco Enhanced Switching Relays are perfect for contractors looking for reliable and efficient zoning solutions.
FEATURES
- Probe Style LWCO uses the boiler’s water to complete an electrical circuit
- The plug n’ play wiring harness for 24 VAC or tri-barrier terminals for 120 VAC wiring makes meeting code, including CSD-1, a snap
- Pairs perfectly with the Taco Electric Water Feeder to maintain safe water content in the boiler
| PART NUMBER | ZONES | ||
| SR501-4 | 1 Zone |
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| SR502-4 | 2 Zone w/ Priority |
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| SR504-EXP-4 | 4 Zone Expandable w/ Priority |
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| SR506-EXP-4 | 6 Zone Expandable w/ Priority |
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RELATED PRODUCTS
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