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© 2011

D 315 - 04/11

2 of 12

 Table of Contents 

 Getting Started 

  

 Caution 

   

Installation ......................................................................2

Preparation .................................................................2
Physical Dimensions ..................................................3
Installation Location ...................................................3
Rough-In Wiring .........................................................3
Sizing the Transformer ...............................................4
Control Wiring ............................................................4
Testing the Control Wiring ..........................................6

Applications ....................................................................7

User Interface ............................................................... 10

LEDs ........................................................................ 10

Sequence of Operation ................................................ 10

tekmarNet

®

 System .................................................. 10

Relay Outputs ........................................................... 11
Energy Saving Features ........................................... 11

Troubleshooting ............................................................ 11

Frequently Asked Questions .................................... 11

Technical Data .............................................................. 12

Limited Warranty and Product Return Procedure ........ 12

Congratulations on the purchase of your new tekmarNet

® 

Wiring Center!

This manual covers the complete installation, programming and sequence of operation for this control. You will also find 
instruction on testing, commissioning, and troubleshooting the control and system that it operates. 

Improper installation and operation of this control could 
result in damage to the equipment and possibly even 
personal injury or death. It is your responsibility to ensure 
that this control is safely installed according to all applicable 
codes and standards. This electronic control is not intended 
for use as a primary limit control. Other controls that are 
intended and certified as safety limits must be placed into 

the control circuit. Do not attempt to service the control. 
Refer to qualified personnel for servicing. There are no 
user serviceable parts. Attempting to do so voids warranty 
and could result in damage to the equipment and possibly 
even personal injury or death.

Installation

The installer must ensure that this control and its wiring are 
isolated and/or shielded from strong sources of electromagnetic 
noise. Conversely, this Class B digital apparatus complies 
with Part 15 of the FCC Rules and meets all requirements of 
the Canadian Interference-Causing Equipment Regulations. 
However, if this control does cause harmful interference 
to radio or television reception, which is determined by 
turning the control off and on, the user is encouraged to try 

to correct the interference by re-orientating or relocating 
the receiving antenna, relocating the receiver with respect 
to this control, and/or connecting the control to a different 
circuit from that to which the receiver is connected.

Cet appareil numérique de la classe B respecte toutes 
les exigences du Règlement sur le matériel brouilleur du 
Canada.

 Radio Frequency Interference 

Preparation

Tools Required

 ---------------------------------------------------------------------------------------

 ---------------------------------------------------------------------------------------

tekmar or jeweller screwdriver
Phillips head screwdriver


Needle-nose pliers
Wire stripper


Materials Required

 -----------------------------------------------------------------------------------

 -----------------------------------------------------------------------------------

(2) #10 x 1” wood screws
(2) wire nuts
18 AWG LVT solid wire (low voltage connections)



14 AWG solid wire (line voltage connections)
tekmar 009 (24 V (ac) transformer)
Cable or conduit connectors



Power Required

 --------------------------------------------------------------------------------------

 --------------------------------------------------------------------------------------

120 V (ac), 1-phase, 15 A service from circuit breaker 
panel

Power disconnect (optional)

Summary of Contents for D 315

Page 1: ...tats and zone valves while only requiring two wires to be run back to the mechanical room When combined with tekmarNet 4 Thermostats all devices communicate to provide a synchronized end switch that r...

Page 2: ...nnel for servicing There are no user serviceable parts Attempting to do so voids warranty and could result in damage to the equipment and possibly even personal injury or death Installation The instal...

Page 3: ...nably close proximity to the equipment All line voltage wire connections are recommended to be pulled inside a flexible or solid conduit Always follow proper wiring practices building and electrical c...

Page 4: ...utral wires to the 115 V ac side of the transformer Use a wire nut or approved connector See Figure 1 Wire the Power L Connect the 115 V ac line voltage L wire to the 115 V ac side of the transformer...

Page 5: ...W ter minals on the 315 Low Voltage Wiring The enclosure may be mounted directly to a wall or to an electrical junction box Ensure that the high voltage wires are neatly tucked inside the electrical...

Page 6: ...oltage through the ther mostat See the thermostat installation manual for details Testing the Zone Output 1 Use an electrical test meter to measure the ac voltage between the C and the Vlv terminals f...

Page 7: ...C Zone 5 R W tN4 C Zone 6 R H8001B End Switch Use at least 167 F 75 C conductors Description tN4 Wiring Center 315 six tekmarNet 4 Thermostats and six zone valves wired to a tekmar System Control 420...

Page 8: ...ne 3 W tN4 R C Zone 4 W tN4 R tN4 Wiring Center 315 Six Zone Valves W tN4 C tN4 C X Zone 1 Expansion Vlv C Zone 1 Vlv C Zone 2 Vlv C Zone 3 Vlv C Zone 4 Vlv C Zone 5 Vlv C Zone 6 X C Input Power R R W...

Page 9: ...Pump C Zone 2 W tN4 R C Zone 3 W tN4 R C Zone 4 W tN4 R tN4 Wiring Center 315 Six Zone Valves W tN4 C tN4 C X Zone 1 Expansion Vlv C Zone 1 Vlv C Zone 2 Vlv C Zone 3 Vlv C Zone 4 Vlv C Zone 5 Vlv C Zo...

Page 10: ...ations and holidays tN4 Setpoint Control 161 162 Control hot tubs pools and more ZONE 1 The zone 1 thermostat is calling for heat and the 24 V ac output is energized ZONE 2 The zone 2 thermostat is ca...

Page 11: ...ng on each thermostat Zone Synchronization Another feature of the Wiring Center is Zone Synchronization In typical zoned systems the thermostats operate on a stand alone basis This means that a zone t...

Page 12: ...y Purchaser to its customers which are different from or in excess of the tekmar Lim ited Warranty are the Purchaser s sole responsibility and obligation Pur chaser shall indemnify and hold tekmar har...

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