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  Tekmar Power Manager- Three Auxiliary Pumps, Four Demands
Tekmar Power Manager- Three Auxiliary Pumps, Four Demands
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Tekmar Power Manager- Three Auxiliary Pumps, Four Demands

The Power Manager 346 is designed to allow non-tekmar products to interface with a tekmarNetĀ® 4 communicating heating system. It can be used in applications that use 3rd party thermostats, zoning devices, or mechanical equipment that requires a hot water demand from the boiler system. This product provides demand inputs for up to 4 different reset water temperatures (high temp, low temp 1, low temp 2, low temp 3). It has the capability of switching 3 pump outputs and provides wiring for up to 3 tekmarNetĀ® 4 devices, as well as the 4 separate demand inputs to create a heat call on one of up to 4 possible reset water temperatures.


  • CSA C US certified for use in USA and Canada
  • Converts demands to tekmarNet® 4 communication
  • Four On-Off demand inputs
  • Four tekmarNet® 4 buses
  • Internal 50 VA transformer
  • Provides power to tekmarNet® 4 Reset Module
  • Three 115 V powered auxiliary pump outputs
  • tekmarNet® 4 compatible


Control Microprocessor control. This is not a safety (limit) control
Packaged weight 4.9 lb. (2220 g)
Dimensions 8-1/16" H x 11-1/8" W x 2-15/16" D (204 x 282 x 74 mm)
Enclosure Blue PC+ABS plastic with metal top and bottom conduit connection walls, NEMA type 1
Approvals CSA C US, meets class B: ICES & FCC Part 15
Ambient conditions Indoor use only, 32 to 117°F (0 to 47°C), RH ≤80% to 88°F (31°C), down to 50% above 104°F (40°C), Altitude <6560 ft. (2000 m), Installation Category II, Pollution Degree
Power supply 115 V (ac) +/- 10%, 60 Hz, 12 A
Combined load All loads using input power 11.5A max
Relay power 115 V (ac) +/- 10%, 60 Hz, 10 A
Wire rating Installations up to 104°F (40°C) only require 90°C supply wiring, whereas environments of 105 to 117°F (41 to 47°C) require 105°C rated wiring
Max low voltage load 24 V (ac) 2.1 A 50 VA, fuse: T2.5 A 250 V
Auxiliary pump inputs 24 V (ac), < 0.1 VA
Auxiliary pump relays 115 V (ac) 5 A
Bus demands 20 to 260 V (ac) 2 VA
Warranty Limited 3 Year Warranty

Current Literature

Product Submittal

Jan 2011 - Present


Installation & Operation Manual

Apr 2008 - Present


Job Record

Aug 2009 - Present


Wiring Brochure

Dec 2008 - Present


Part Number: 346

2 +$511.04

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