tekmar 314 tN2 Wiring Center Installation - Manual (Page 5)

5 of 12 © 2011 D 314 - 05/11
External Power Supply
It is strongly recommended that a transformer with an in-line
fuse be used in order to protect the transformer from high
currents. The tekmar Transformer 009 includes a fuse.
Connect the 24 V (ac) leads from the transformer to the C
and R terminals marked “Input Power” on the 314.
tekmarNet ® 2 Thermostats
The 314 is designed to operate with tekmarNet ® 2 Thermostats.
They provide the heating and cooling control for each zone,
and communicate with any other tekmarNet
® device on
the system.
Connect the tN2 terminals from each thermostat to the
corresponding tN2 terminals for each zone on the 314.
tN4 Expansion Terminals
The 314 uses the Expansion tN4 and C terminals to
communicate with additional Wiring Centers, House
Controls, and other tekmarNet
® devices.
Connect the tN4 and C Expansion terminals on the 314
to the corresponding tN4 and C Expansion terminals of
the additional external device.
•
•
•
Low Voltage Wiring ----------------------------------------------------------------------------------- -----------------------------------------------------------------------------------
Ensure that the high voltage wires are neatly tucked
inside the electrical box.
Using 2 of the 4 holes in the back of the enclosure,
securely fasten it to the electrical junction box with 2 #10
screws as shown in Figure 5. •
•
Install The Enclosure --------------------------------------------------------------------------------- ---------------------------------------------------------------------------------
Figure 5
Wiring the End Switch
The 314 can operate a single on-off boiler or provide a
demand to a tekmar control.
Connect the X X End Switch terminals on the 314 to the
T-T (or R-W) terminals on the boiler.
If required, use the X X End Switch terminals to switch
24 V (ac) to power a demand on a tekmar outdoor reset
control.
Wiring the Outdoor Sensor
The 314 has an optional outdoor sensor input.
Wire the outdoor sensor to the Out and Com terminals
on the 314.
The outdoor temperature will be displayed on all ther-
mostats connected to the 314.
•
•
•
•
R
C
115 V (ac)
L N G
(red)
(black)
(black)
(black)
(black)
to pump
grounds
Zone 2
Zone 3
Zone 4
Zone 1
Zone Power (L)
Zone 1
Zone 2
Zone 3
Zone 4
Strip wires
1/2 inch (13 mm).
Installed wires are
not removable.
12-18 AWG
314
Rear Line Voltage Wiring Diagram -------------------------------------------------------------------- --------------------------------------------------------------------