tekmar 346 User Manual
- Data Brochure
Power Manager 346
D 346
04/08
1
Information
Brochure
Choose controls
to match
application
2
Application
Brochure
Design your
mechanical
applications
3
Rough-in
Rough-in
instructions
Wiring
wiring
4
Wiring
Brochure
Wiring and
installation of
specific control
5
Data
Brochure
Control settings
and sequence of
operation
6
Job
Record
Record settings &
wiring details for
future reference
Introduction
The Power Manager 346 has an internal transformer that powers a tekmarNet®4 (tN4) System Control 420, 421, 422,
or 423. The 346 also includes four on-off demand inputs that can be used to provide a tN4 communication message to
activate the reset module. This allows a mixture of non-communicating and tN4 communicating controls to use a tN4
System Control.
Features:
tN4 Compatible
•
Four tN4 Buses
•
Four On-Off Demand Inputs
•
Converts Demands to tN4 Communication
•
Three Auxiliary Pumps
•
Internal 50 VA Transformer
•
CSA C US Certified for use in USA and Canada
•
Power Manager 346
tektra 1019-01
For product instructions, see brochure
Input Power: 115 V (ac) ±10% 60 Hz, 12 A
All Loads Using Input Power: 11.5 A
Relay Ratings: 115 V (ac) 5 A
Relay Power: 115 V (ac) ±10% 60 Hz, 10 A
Demands: 20 to 260 V (ac) 2 VA
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Boiler Bus 0 Demand Power
Bus 1 Demand
Bus 2 Demand
Bus 3 Demand
Aux Pump 1
Aux Pump 2
Aux Pump 3
tN4
For product literature:
www.tekmarcontrols.com
Caution! Disconnect All
Power before Opening
Table of Contents
Sequence of Operation .................................................2
Application 1 - On/Off Demand ................................ 2
Application 2 - Power for Modules ............................3
On-Off Demand to tN4 Conversion ..........................4
Room Occupied and Unoccupied Settings...............4
Room Unoccupied .................................................... 5
Schedules ................................................................5
LED Status Indicators ................................................... 6
Flashing LED Indicated Error Message ........................ 7
Cleaning the Control ..................................................... 7
Schedules ................................................................4
Auxiliary Pumps .......................................................4
Warranty ....................................................................... 8
Switch Settings .............................................................5
Room Occupied .......................................................5
Sequence of Operation
Application 1 - On/Off Demands
One application is to provide a method to convert on-off demands into a tN4 message for an outdoor reset water temperature
and send this message to a tN4 reset module. tN4 reset modules include the 420, 421, 422 and 423.
Reset
Module
Optional
Mixing
On/Off
Demands
346
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Application 2 - Zoning at Remote Manifolds
The other application is to use the 346 to provide power to a reset module and mixing expansion modules. This allows the
reset module, 346, and mixing expansion modules to be located in the mechanical room while the zone managers can be
remotely located at the manifold locations.
Reset
Module
2 Conductors
346
Mixing
Expansion
Module
tN4
Zone
Manager
Optional
Mixing
Mechanical Room Manifold Location
OR
2 Conductors Thermostats
End
Reset
Module
346
Switch
Zone Valve Control
Mixing
Expansion
Module
Optional
Mixing
Mechanical Room Manifold Location
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