Features
Features Amperage Rating: 7.2 A Frequency Rating: 60 Hz 30 VA transformer voltage Separate (isolated switch) and ZC/ZR relays protect boiler aquastat Double-sided printed circuit board construction: 100 % factory tested for reliability 30 VA transformer: robust enough to handle up to 15 zones Auto reset electronic fuse Priority safety timer: ensures other zones get heat every 30 min and prevents freeze-ups 5 sec time delay for boiler shut-off Premium plug-in replaceable relays 24 VAC transformer terminals Plug-in, add-on zone modules (AD-1 or AD-4) Switchable priority High relay load rating: 1/3 hp Clearly marked terminals with clamping plates Relay diagnostic light: easily seen through window on cover

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