Multi Variable Air Conditioners Cassette Type Indoor Unit
12
should be less than 300mm.
4.3.3 Test of Drainage System
(1) Please test drainage system after electric work is finished.
Inject approximately 1L purified water to drain pan from air vent, ensure that not to splash the
water over the electrical components (e.g. water pump. etc).
1) In case of commissioning finished, please energize the IDUs and switch to cooling or dry
mode, meanwhile, the water pump operates, you can check the draining through the
drain socket.
2) If communication wire is not connected, communication malfunction “C0” will occur after
60s of energizing. In this case, the water pump operates automatically. Check if the
water pump drains normally through drainage port. The water pump will stop
automatically after running for 10mins.
(2) During the test, please carefully check the drainage joint, make sure no any leakage
occur.
(3) It’s strongly recommend to do the drain test before ceiling decoration.
Fig 4.3.5
4.4 Panel installation
4.4.1 Notices for installation
(1) Improper decorative panel installation could cause the following problems.
Fig 4.4.1
(2) Ensure that its clearance-free between decoration panel and ceiling board after
installation, if not, please adjust the body position.
Fig 4.4.2
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