The Power Manager 346 is designed to allow non-tekmar products to interface with a tekmarNet® 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 tekmarNet® 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 the 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 | 3.5 lbs (1610 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 |
In most cases the current version of literature will work, otherwise use the piece of literature most closely matching the date code of your product.
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Product Submittal |
Jan 2011 - Present |
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Installation & Operation Manual |
Apr 2008 - Present |
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Job Record |
Aug 2009 - Present |
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Wiring Brochure |
Dec 2008 - Present |