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Installation & Operation Manual
tN2 Wiring Center 314
Introduction
®
The tekmarNet
2 Wiring Center 314 is designed to operate up
to four zone pumps in a hydronic heating system. It provides a
convenient location to wire both thermostats and zone pumps
while only requiring two wires to be run back to the mechanical
room. When combined with tekmarNet
devices communicate to provide a synchronized end switch
that reduces cycling of equipment.
Power
End Switch
tN2 Wiring Center 314
Four Zone Pumps
®
2 Thermostats, all
For use with
tN2 thermostats only
tN2
Features
•
Four 115 V (ac) powered zone outputs
•
For use with tekmarNet
•
Supports two-stage tekmarNet
•
tN4 expansion terminals
•
Isolated end switch
•
Outdoor sensor input
•
External diagnostic LEDs
•
CSA C US Certified for use in USA and Canada
Benefi ts
•
Simple, convenient wiring location
•
Compact enclosure for flexible installation
•
Reduce equipment cycling through the use of
®
tekmarNet
2 Thermostats
Notes
•
Not for use with tekmarNet
1 of 12
D 314
05/11
Zoning
Replaces: 11/10
®
2 Thermostats
®
2 Thermostats
®
4 Thermostats
© 2011
D 314 - 05/11
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Summary of Contents for Tekmar tekmarNet2 314
- Page 1 Installation & Operation Manual D 314 05/11 tN2 Wiring Center 314 Zoning Replaces: 11/10 Introduction ® The tekmarNet 2 Wiring Center 314 is designed to operate up to four zone pumps in a hydronic heating system. It provides a convenient location to wire both thermostats and zone pumps while only requiring two wires to be run back to the mechanical room.
-
Page 2: Table Of Contents
• 14 AWG solid wire (line voltage connections) • (2) Wire nuts • tekmar 009K (24 V (ac) transformer with 4” x 4” junction box) • 18 AWG LVT solid wire (low voltage connections) • Cable or conduit connectors Power Required -- -- - ------ - ----- - --- -- - - -- -- - - -- - -- -- - --- -- -- - --- -- - -- --- -- - -- --- -- - - -- --- -- -- - - -- - -- - - --- --- ----- ---- ----- ---- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - •... -
Page 3: Physical Dimensions
Physical Dimensions Front View Side View Back View 1/2” Knock-out (x 4) tN2 tN2 tN2 tN2 tN2 tN2 tN2 tN2 H8004C Zone 1 Zone 2 Zone 3 Zone 4 For use with Power tN2 thermostats only End Switch 5–1/2” (140 mm) tN2 Wiring Center 314 Four Zone Pumps 7/8”... -
Page 4: Sizing The Transformer
The control requires an external transformer with 20 VA VA, and includes an in-line fuse to protect the transformer capacity or greater. A tekmar Transformer 009 (or 009K and control. which includes a 4” x 4” electrical box) can supply up to 40... - Page 5 T-T (or R-W) terminals on the boiler. and R terminals marked “Input Power” on the 314. • If required, use the X X End Switch terminals to switch 24 V (ac) to power a demand on a tekmar outdoor reset tekmarNet ® 2 Thermostats control.
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Page 6: Testing The Control Wiring
314. on and off, there may be a fault on the thermostat. 6. Replace the damaged wires, test, and reconnect them If a fault is suspected, contact your tekmar sales representative to their proper terminals. for assistance. -
Page 7: Applications
® 4 Expansion to House Control A314-1 Description: tN2 Wiring Center 314, four tekmarNet ® 2 Thermostats, and four zone pumps wired into a tekmar tN2 House Control 401 which controls the boiler and DHW pump. tekmarNet ® tekmarNet ®... - Page 8 Description: tN2 Wiring Center 314, four tekmarNet ® 2 Thermostats, and four zone pumps wired into a powered boiler demand input on a device such as a tekmar Boiler Control 260 which controls the boiler and DHW pump. tekmarNet ®...
- Page 9 End Switch (X-X) To Boiler Enable (T-T) A314-3 Description: tN2 Wiring Center 314, four tekmarNet ® 2 Thermostats, and four zone pumps wired into the T-T terminals on the boiler to give an enable. tekmarNet ® 2 Thermostats tekmarNet ® 2 Thermostats Outdoor Sensor 070 tN2 tN2 tN2 tN2 tN2 tN2 tN2 tN2...
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Page 10: User Interface
This can provide a boiler demand on. Power is then supplied to the appropriate zone output to a tekmar reset control, or provide a boiler enable to a as indicated by the LED. boiler’s TT terminals. -
Page 11: Energy Saving Features
Energy Saving Features Section C Network Schedules---- -------- - ------ --- - -- - - - ---------- --------- ---- - - - - - Zone Synchronization -- -- ------- -- -- --- -- --- -- -- -- -- -- --- -- -- -- -- -- --- - ®... -
Page 12: Technical Data
Representative. tekmar Control Systems Ltd., Canada, tekmar Control Systems, Inc., U.S.A. Head Offi ce: 5100 Silver Star Road, Vernon, B.C. Canada V1B 3K4, 250-545-7749, Fax. 250-545-0650 Web Site: www.tekmarcontrols.com Product design, software and literature are Copyright ©...
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