Thermostats & Controls
ITEM NUMBER : SR502-4 | Thermostats & Controls
Taco’s Enhanced Switching Relays are the best choice for all your zoning needs, with advanced timer and boiler functions, external diagnostic lights, switchable priority and contractor friendly PC board layouts.
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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| SR503-EXP-4 | 3 Zone Expandable 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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