tekmar 360 Mixing Control User Manual

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Test The Outputs

System Pump (Sys Pmp)

If a system pump is connected to the Sys Pmp terminal (5) and N
terminal (6), make sure that power to the terminal block is off, and
install a jumper between the Power L and the Sys Pmp terminals (3
and 5). Install a second jumper between the Power N and N termi-
nals (4 and 6). When power is applied to the Power L and Power N
terminals (3 and 4), the system pump should start. If the pump does
not turn on, check the wiring between the terminal block and pump,
and refer to any installation or troubleshooting information supplied
with the pump. If the pump operates properly, disconnect the power
and remove the jumpers.

Boiler

If the boiler circuit is connected to the Boiler terminals (7 and 8), make sure power to the boiler circuit is off, and install a jumper
between the terminals. When the boiler circuit is powered up, the boiler should fire. If the boiler does not turn on, refer to any
installation or troubleshooting information supplied with the boiler (The boiler may have a flow switch that prevents firing until
the boiler loop pump is running). If the boiler operates properly, disconnect the power and remove the jumper.

Connecting The Control

Make sure all power to the devices and terminal blocks is off, and remove any remaining
jumpers from the terminals.

Reconnect the terminal blocks to the control by carefully aligning them with their respec-
tive headers on the control, and then pushing the terminal blocks into the headers. The
terminal blocks should snap firmly into place.

Install the supplied safety dividers between the unpowered sensor inputs and the pow-
ered 120 V (ac) or 24 V (ac) wiring chambers.

Apply power to the control. The operation of the control on power up is described in the
Sequence of Operation section of this brochure.

Mixing Valve Actuator

If a floating action actuating motor circuit is connected to the R Opn, R Cls, and C terminals (9, 10 and 11), the control’s Test
Sequence can be used to check the motor circuit. Once the Test button is pressed, the valve should move to the fully open
position. If the motor closes instead of opening, the wiring of the actuating motor must be reversed. Next, the valve should
move to the fully closed position. If it does not, check the wiring between the terminals and the actuating motor. Refer to any
installation or troubleshooting information supplied with the motor.

Boil

UnO

Com

Mix

Com

13 14 15 16

Power

Sys

Pmp

120 V (ac)