Climatic; Powering The Unit - Lennox FLEXY II Series Installation, Operating And Maintenance

COMMISSIONING
STARTING THE UNIT
At this point the unit circuit breakers should be open
Y ou will need a DS50 maintenance controller or Adalink
with appropriate Interface.
The jumpers are factory set and the configuration switches
are adjusted depending on the option the type of unit.
Connecting the CLIMATIC displays
Close the 24V Control Circuit breakers.
The CLIMATIC 50 starts after 30s
Reset the DAD photo (If f itted)
IOM – FLEXY II – 1007 – E
Check and adjust the control settings.
Ref er to the control section in this manual to adjust the
different parameters.

POWERING THE UNIT

- Power up the unit by closing the isolator switch (if
f itted). - At this point the blower should start unless the
climatic does not energise the contactor. In this particular
case the blower can be f orced by bridging the port NO7
and C7 on connector J14 on the Climatic. Once the f an
is running, check the rotation direction. Ref er to the
rotation arrow located on the fan.
- The f ans and compressors direction of rotation is
checked during the end of line test. They should
theref ore all turn in either the right or wrong direction.
NOTE: A compressor rotating in the wrong direction will
f ail.
- If the fan turns in the wrong direction (the right direction
is shown on f igure n° 11), disconnect the main power
supply to the machine at the building's mains switch,
rev erse two phases and repeat the abov e procedure.
- Close all circuit breakers and power up the unit, remov e
the bridge on connector J14 if f itted.
- If now only one of the components rotates in the wrong
direction, disconnect the power supply at the machine's
isolator switch (if fitted) and rev erse two of
component's phases on the terminal within the electrical
panel.
- Check the current drawn against the rated v alues, in
particular on the supply fan (ref. page 33).
- If the readings on the f an are outside the specif ied
limits, this usually indicates excessive air f low which will
affect the lif e expectancy and the thermody namic
perf ormances of the unit. This will also increase the risks
of water ingress into the unit. Ref er to the "Air Flow
Balancing" section to correct the problem.
At this point attach the manometers to the refrigerant
circuit
Fig. 11
the
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