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English
FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE DURING CONSTRUCTION AND
CHECK AFTER INSTALLATION IS FINISHED.
a. Items to be checked after completion of work
3. SELECTING INSTALLATION SITE
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When moving the unit while removing it from the carton box, be sure to lift it by holding on to the
four lifting lugs without exerting any pressure on other parts, especially, the refrigerant piping.
When it may exceed 30
°°°°
C and RH80% in the ceiling or fresh air is inducted into the ceiling, an addi-
tional insulation (Thickness 10mm or more of glasswool or polyethylene form) is required.
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(1) Select an installation site where the following conditions are fulfilled and that meets your customer’s approval.
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Where is resistible against weight of BEV unit.
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Where the false ceiling is not noticeably on an incline.
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Where there is no risk of flammable gas leakage.
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Where sufficient clearance for maintenance and service can be ensured.
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Where the total piping length involving indoor unit and outdoor unit is below the allowable piping length.
(See the installation mamual included with the outdoor unit for “6. REFRIGERANT PIPING WORK.”)
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Locations where a maintenance hole can be installed.
(Refer to Fig. 1)
(2) After considering whether the location the unit is to be installed can support its weight, if it seems
dangerous, install it after reinforcing the location with boards, crossbeams, etc.
(3) Install the gas piping connection piping (7) no further than 250mm form the hole for the thermistor
on the unit. (Refer to the “8-1 HOW TO CONNECT WIRINGS”)
(4) Avoid any contact with the ceiling surface, as this may cause noise and vibration.
[CAUTIONS]
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Install the indoor and outdoor units, power supply wiring and connecting wiring at least 1 meter away from
televisions or radios in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may not be sufficient enough to eliminate the noise.)
Items to be checked
If not properly done, what is likely to occur
Check
Are the indoor and outdoor and BEV unit fixed firmly?
The units may drop, vibrate or make noise.
Is the gas leak test finished?
It may result in insuffcient cooling.
Is the unit fully insulated?
Condensate may drip.
Does the power supply voltage correspond to that
shown on the name plate?
The unit may malfunction or the components burn out.
Are wiring and piping correct?
The unit may malfunction or the components burn out.
Is the unit safely grounded?
Risk of electric shock at electric leakage.
Is wiring size according to specifications?
The unit may malfunction or the components burn out.
Are refrigerant piping length and additional refrigerant
charge noted down?
The refrigerant charge in the system is not clear.
3P084604-2A_Eng.fm Page 4 Wednesday, March 3, 2004 10:01 AM
