Sakura COOLING ONLY Installation, Operation & Maintenance Manual - Warning
MAINTENANCE
Warning
- Disconnect from the main power supply before servicing the air conditioner unit.
- Do Not pull out the power cord when the power is ON. This may cause serious electrical shocks which
may result in fire hazards.
Caution
Before turning off the power supply, set the remote controller’s ON/OFF switch to the “OFF” position to
prevent the nuisance tripping of the unit.
If this is not done, the unit’s fans will start turning automatically when power resumes, posing a hazard to
service personnel or the user.
Air Filter
Remove any dust adhering to the filter by using a vacuum cleaner or wash in lukewarm water (below
40°C) with a neutral cleaning detergent.
-
Rinse the filter well and dry before placing it back onto the unit.
-
Do not use gasoline, volatile substances or chemicals to clean the filter.
-
Clean the filter at least once every 2 weeks. Or more frequently if necessary.
V-Belt
V-Belts tend to elongate during operation. Be sure to adjust the tension of the belts so that the
belts have adequate tension. However, after the first twenty four hours of operation the belt should be
checked and adjusted. If the tension is in more than is normally acceptable. Motor and blower bearings
receive undue strain and, as a consequence, the unit will create vibration and noise problem. The belt
should be read justed to the recommended tension as per the table of tensioning force V-drive belt.
Uneven length of V-belts could occur after long time running, In the case totally replace all belts.
Do not used old and new belts together. When replacing belts, be sure that all belts selected have an even
length before fitting then on to the unit.
When adjusting the tension and/or replacing the belts, motor level may be adjusted slightly by bolts
on the motor base.
Adjusting the belt drive using the nuts of the fan motor base.
Table of tensioning forces
Belt Section
Force required to deflect belt 16 mm. Per metre of span
Small Pulley Diameter
(mm)
Newton (N)
Kilogram force (Kgf)
SPB
112 – 224
236 - 315
45 – 65
65 - 85
4.6 – 6.6
6.6 – 8.7
B
125 - 200
20 - 30
2.0 – 3.1
20
SAKURA - Total Air Conditioning Solution