306P

The Switching Relay 306P connects up to six thermostats and operates circulators to provide heating to a zoned hydronic heating system. Zone 1 has optional priority over zones 2 through 6 and can be used to provide heat to an indirect domestic hot water tank. The 306P includes optional exercising to prevent circulator seizure when not in use, and optional post purge operation of the last operating zone to maximize energy savings. The 306P provides a RoomResponse™ signal to modulating-condensing boilers to optimize comfort while improving boiler efficiency.

RoomResponse™ signal, compatible with all low voltage thermostats
Unlimited zone expansion, zone priority
Priority override, pump exercising
Post purge, LED for each zone, priority, end switch and RoomResponse™
Away signal shared between tekmar thermostats, four ground screws
Top, bottom and back conduit knockouts
Fuses protect transformers and pumps
Two spare fuses included
CSA approved

$ 319.09

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Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days

Dimensions: 8-3/16" H x 10-11/16" W x 2-3/8" D (208 x 271 x 60 mm)

Ambient conditions: Indoor use only, 32 to 122°F (0 to 50°C), RH ?90% non-condensing

Approvals: CSA C US

Enclosure: Cover: ABS plastic, Base: galvanized steel, NEMA type 3

Control: Microprocessor control. This is not a safety (limit) control.

Warranty: Limited 3 Year Warranty

Packaged weight: 5.0 lb. (2250 g)

Pump relays: 230 V (ac), 5 A, 1/3 hp

Mod boiler output: 0-10 V (dc) 500 ? min load impedance / 4-20 mA 1 k? max load impedance

DHW end switch: 24 V (ac), 5 A

Boiler XX end switch: 24 V (ac), 5 A

Power supply: 115 V (ac) ±10%, 60 Hz, 20 A

Transformer: 40 VA, expandable to 80 VA with additional transformer M3069 (sold separately)

Fuses: T5A 250 V slow blow, two spare fuses included