302P

302P

Part of the Zone Controls Series

Ordering Code: 302P

UPC: 779655030204

Switching Relay, Two Zones with Priority

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tekmar Home

The Switching Relay 302P connects up to two thermostats and operates circulators to provide heating to a zoned hydronic heating system. Zone 1 has optional priority over zone 2 and can be used to provide heat to an indirect domestic hot water tank. The 302P 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 302P provides a RoomResponseTM signal to modulating-condensing boilers to optimize comfort while improving boiler efficiency.

Features

RoomResponse (TM) signal, compatible with all low voltage thermostats
Unlimited zone expansion, zone priority
Priority override, pump exercising
Pump exercising, post purge
LED for each zone, priority, end switch and RoomResponse (TM), 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

Specifications
Agency Approvals	CSA C US
Ambient Conditions	Indoor use only, 32 to 122 degrees F (0 to 50 degrees C), RH less than or equal to 90 percent non-condensing
Control Load	7 VA
Control Type	Microprocessor control, this is not a safety (limit) control
Dimensions	8-3/16" H x 10-11/16" W x 2-3/8" D (208 x 271 x 60 mm)
Enclosure Material	Cover: ABS plastic, Base: galvanized steel
Enclosure NEMA Rating	NEMA 1
Power Supply	115 V (ac) plus / minus 10 percent, 60 Hz, 11 A
Pump Relay	115 V (ac), 5 A, 1/3 hp, 17.3 A combined

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