The Switching Relay 301P connects to one thermostat and operates a circulator and boiler to provide heating to a hydronic heating system. The 301P includes optional exercising to prevent circulator seizure when not in use, and optional post purge operation maximize energy savings.
Technical Information
Tekmar 301p Installation & Operation
Tekmar 301p Submittal
Features
- 20 VA transformer
- 3-year warranty
- CSA approved
- Compatible with all low voltage thermostats
- Fuse protects pump
- Hinged cover
- LED for power and zone
- Post purge
- Pump exercising
- Spare fuse included
- Thermal circuit breaker protects transformer
- Top, bottom and back conduit knockouts
Specifications
Control |
Microprocessor control. This is not a safety (limit) control. |
Packaged weight |
2.5 lb. (1125 g) |
Dimensions |
6-11/16″ H x 4-15/16″ W x 2-7/16″ D (169 x 123 x 62 mm) |
Enclosure |
Cover: ABS plastic, Base: galvanized steel, NEMA type 1 |
Approvals |
CSA C US |
Ambient conditions |
Indoor use only, 32 to 122°F (0 to 50°C), RH ≤90% non-condensing |
Power supply |
115 V (ac) ±10%, 60 Hz, 5 A |
Transformer |
24 V (ac), 20 VA |
Control load |
7.5 VA |
Fuse |
T5A 250 V slow blow, spare fuse included |
Pump relay |
230 V (ac), 5 A, 1/3 hp |
Boiler XX end switch |
24 V (ac), 5 A |
Warranty |
Limited 3 Year Warranty |
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