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

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Overview

Details for 346

Power Manager - Three Auxiliary Pumps, Four Demands

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.

Features

CSA C US certified for use in the USA and Canada
Converts demands to tekmarNet^® 4 communication
Internal 50 VA transformer
Four on-off demand inputs
Four tekmarNet^® 4 buses
Provides power to tekmarNet^® 4 reset module
tekmarNet^® 4 compatible
Three 115 V powered auxiliary pump outputs

Specifications

Item Number	346
Brand	Tekmar
Category	tekmarNet Controls
Agency Approvals	CSA C US, meets Class B: ICES & FCC Part 15
Ambient Conditions	Indoor use only, 32 to 117 degrees F (0 to 47 degrees C), RH plus / minus 80 percent to 88 degrees F (31 degrees C), down to 50 percent above 104 degree F (40 degrees C), Altitude less than 6560 ft. (2000 m), Installation Category II, Pollution Degree
Auxiliary Pump Inputs	24 V (ac), less than 0.1 VA
Auxiliary Pump Relay	115 V (ac) 5 A
Bus Demands	20 to 260 V (ac) 2 VA
Combined Load	All loads using input power 11.5A max
Control Type	Microprocessor control, this is not a safety (limit) control
Dimensions	8-1/16" H x 11-1/8" W x 2-15/16" D (204 x 282 x 74 mm)
Enclosure Material	Blue PC+ABS plastic with metal top and bottom conduit connection walls
Enclosure NEMA Rating	NEMA 1
Max Low Voltage Load	24 V (ac) 2.1 A 50 VA, fuse: T2.5 A 250 V
Power Supply	115 V (ac) plus / minus 10 percent, 60 Hz, 12 A
Relay Power	115 V (ac) plus / minus 10 percent, 60 Hz, 10 A
Wire Rating	Installations up to 104 degrees F (40 degrees C) only require 90 degrees C supply wiring, whereas environments of 105 to 117 degrees F (41 to 47 degrees C) require 105 degrees C rated wiring