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© 2011  

D 315 - 04/11

Installation Location

When choosing the location for the control, consider the 
following:
Keep dry. Avoid potential leakage onto the control.
RH   90% to 122°F (50°C) in a non-condensing 
environment.
Do not expose to operating temperatures beyond 32-
122°F (0-50°C).
Provide adequate ventilation.
Keep away from equipment, appliances or other sources 
of electrical interference.


Locate the control near zone valves if possible.
Provide easy access for wiring and viewing the 
control.
Mount approximately 5 ft. (1.5 m) off the finished floor.
Install to wall using #10 x 1” wood screws. Wall anchors 
are recommended when mounting to sheet rock, wall-
board or masonry.



Rough-In Wiring

Line Voltage Wiring

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In most cases, the control can be mounted directly to a wall 
without the need for any line voltage connections.

As an option, the control may be mounted to a 4” x 4” 
electrical junction box so that the high voltage electrical 
connections for the transformer are safely contained.

For ease of service, the circuit breaker or power disconnect 
should be located in reasonably 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 codes for 
your jurisdiction. 

Each cable must be pulled to the electrical junction box. It 
is recommended to label each cable for easy identification. 
All line voltage wires should be stripped to a length of 1/2” 
(13 mm).

Pull a three conductor 14 AWG cable for the following 
equipment:

Circuit Breaker or Power Disconnect (if applicable)
Zone Group Pump (if applicable)


Physical Dimensions

5–1/2”

(140 mm)

5–1/2”

(140 mm)

1–1/8” (30 mm)

7/8”

(22 mm)

CL

Front View

1/2” Knock-out (x 4)

31

5

Zone P

ow

er L

Zone Gr

oup Pump

Strip wir

es1/2 inch (1

3 mm).

Ins
talled wir

es ar

e no

t r

emo

vable.

12

-1

8 A
W

G

Ø 1/8” (3 mm)

7/8” x 1/2” (23 mm x 12 mm)

Knock-out (x 4)

1/2” x 5/8”

(12 mm x 16 mm)

Knock-out (x 4)

2–1/4”

(57 mm)

Power

Zone 1

Zone 2

Zone 3

Zone 4

Zone 5

Zone 6

End Switch/ Zone Group 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

Ct

N

4

CX

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

XC

Input P

ow

er

R

R

Wt

N

4

C

Zone 5

R

Wt

N

4

C

Zone 6

R

H8001B

End Switch

Use at leas

t 1

67°F

(7

5°C) conduct

ors

Side View

Back View

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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