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Ecr

Item SKU - ARM3-P

EDP - 935719

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3 zones for circulators - Expandable to 15 zones with plug in expansion modules - 5 second time delay for boiler shut-off - Priority safety timer ensures other zones get heat every 30 minutes to prevents freeze ups - Electronic fuse with auto reset - 30 VA Transformer handles up to 15 zones (7.2 Amp, 1/3 hp relay rating) - Relay diagnostic light can be seen through enclosure cover - Premium plug in relays can be replaced - Clearly marked terminals with clamping plates - Switchable priority - 24 Volt transformer terminals