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Installation procedures
(2) Water trap on condensing pipe
refer to right figure to instal trap.
per indoor unit instals one trap.
many indoor units use one trip isn't permit.
when insalling the trip,take future cleleanrance
into condition.
4.installation attention
1)Take note of unit left/right side when assembing the unit on site.
2)The base of unit must be level.otherwise,will occur water leakage leading by condensing water not smoothly,and fan
motor's dynamic balance will be destroyed leading that bearing's malfunction and vibration.
3)when select installation location,should obligate necessary maintenance space and space of future water pipe,duct.unit
around,especially one side of check door and exterior connectng pipe should obligate 0.7m~1m maintenance space,ceiling
unit should preseve check hole on the top.and consider space size when detaching filter,maintenance equipment will
use.
4)Power supply to the unit is 3 phase,380V,50Hz,Check if o voltage comforms to requirement prior to connecting motor
to the power supply.The unit enclosure must be properly grounded.
5)after unit installation is completed and before energization and operation,turn
the fan blade with hand to test if it can run free of obstruction.If everything is normal,it is appropriate to entergize and
operate the unit.First,start the and check if fan runs in the correct direction.If negative,it is necessary to shut down the
unit and change the phase sequence.Then,proper connect the power cord of motor.It is prohibited to run the unit in the
absence of load to aviod burn of motor/
5.running and starting
check before unit start
before start the unit,the following check are essential:
1)unit is completely hoisted on girder.
2)duct connection is good
3)drainage pan is connected tightly
4)electric connecting well.refer wiring diagram to connect wire correctly,and wire gronded well.
5)check and fix motor
6)turn fan with hand,ensuring that it runs free of obsturction.
7)check and fix drive and bearing bolt
8)check and ensure strap tray is in the same level,and upright with axis.
9)check strap's degree of tightness.
process of unit start
after finishing all preset,unit will check as followed steps,adjust and start.
1)measure motor's voltage and current on every phase,ensure it running normally,and contrast this data with nameplate's
parameter.
2)without load,start the motor and check if fan runs in the correct direction.If negative,it is necessary to shut down the
unit and change the phase sequence.
3)after laden,motor should start quickly and run smoothly.if abnormal,it is necessary to shut down the power supply
and all connect wire.check first and restart after electrified again.
4)During running,if much viration occurs or abnormal noise is sound,It may be produced by reason that motor be connected
badly,parallel degree badly,bolt loose,etc.
strap tray
bearing
impeller.
motor bolt
A
50mm or more
drain stopper
shock absorber bolt.
21
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