tekmar 362 Mixing Control Installation - Manual (Page 17)

17 of 36 Copyright © D 362 -
12/08
8 9
Pwr
Mix
Opn Cls /
Var
10
24 or 120 V (ac)
Com
C
R
17 18
Com Mix Boil
19 20
Out
17 18
Com Mix Boil
19 20
Out
Boiler
sensor
17 18
Com Mix
Mixing
sensor
14 15
Com 10K
14 15
10K Com Com
Sen Zo
Out
tekmar 362 Zone Control
11 12
Com Mix
Ret
tN1/
tN2
13
Item Menu
UnOcc 1
°F
View
Heat
11 12
Com Mix
Ret
Mixing
Return
Sensor
Mixing Valve Actuator
Connect one side of the 24 V (ac) power to the Pwr Mix terminal (8)
on the control. The output relay Opn (9) is then connected to the
open terminal of the actuating motor and the output relay Cls / Var
(10) is connected to the close terminal of the actuating motor.
Connect the second side of the 24 V (ac) circuit to the common
terminal of the actuating motor.
Sensor and Unpowered Input Connections
Do not apply power to these terminals as this will damage the
control.
Outdoor Sensor
Connect the two wires from the Outdoor Sensor 070 to the Com and
Out terminals (17 and 20). The Outdoor Sensor is used by the 362
to measure the outdoor air temperature.
Boiler Sensor
Connect the two wires from the Boiler Sensor 071 to the Com and
Boil terminals (17 and 19). The Boiler Sensor is used by the 362 to
measure the supply (outlet) water temperature from the boiler.
Mixing Sensor
Connect the two wires from the Mixing Sensor 071 to the Com and
Mix terminals (17 and 18). The Mixing Sensor is used by the 362 to
measure the supply water temperature after the mixing device.
Normally the sensor is attached to the pipe downstream of the
mixing pump.
Mixing Return Sensor
Connect the two wires from the Mixing Return Sensor 071 to the
Com and Mix terminals (11 and 12). The Mixing Return Sensor is
used by the 362 to measure the fluid return temperature from the
snow melting slab.
10K Sensor
Either an Indoor Sensor, Slab Sensor, or Zone Control can be
connected to the
10K input. If a sensor is used, connect the two
wires from the sensor to the Com and 10K terminals (14 and 15).
Zone Control Input
If an external tekmar Zone Control is used, connect the wire from the
Com Sen terminal on the Zone Control to the Com terminal (14) on
the 362. Connect the
Zo Out terminal on the Zone Control to the 10K
terminal (15) on the 362.
Note: The wires from the Zone Control are polarity sensitive. The
communication does not operate correctly if the wires are reversed.
tekmar Net TM Device (tN1 / tN2)
A Room Temperature Unit (RTU) 062 or 063, Remote Display
Module (RDM) 040, or a Remote Start / Stop Module 039 can be
connected to the tekmar Net
TM (tN1 / tN2) input. Connect the Com
terminal from the appropriate device to the Com terminal (11) on the
362. Connect the tN1 or tN2 terminal from the appropriate device to
the
tN1 / tN2 terminal (13) on the 362.
Note: The wires from the RTU, the RDM, and Remote Start / Stop
Module are polarity sensitive. The tN1/tN2 device does not operate
correctly if the wires are reversed.