4
English
4
PREPARATIONS BEFORE INSTALLATION
(1) Confirm the positional relationship between the unit
and suspension bolts.
(Refer to Fig. 2)
Leave space for servicing the unit and include inspection
hatches. (Always open a hole on the side of the electric
parts box so that the air filters, heat exchange elements,
fans, and humidifier elements can easily be inspected and
serviced.)
(mm)
(2) Make sure the range of the unit’s external static pres-
sure is not exceeded.
(See the fan-strength and static performance characteristic
drawings as well as the general catalog for the range of the
external static pressure setting.)
(3) Open the installation hole. (Pre-set ceilings)
•
Once the installation hole is opened in the ceiling where
the unit is to be installed, pass refrigerant, drain piping,
transmission wiring, and remote controller wiring to the
unit’s piping and wiring holes.
See “
6 DRAIN PIPING AND SUPPLY WATER WORK
”,
“
7 REFRIGERANT PIPING WORK
”, and
“
10 WIRING EXAMPLE AND HOW TO SET THE
REMOTE CONTROLLER
”.
•
After opening the ceiling hole, make sure ceiling is level if
needed. It might be necessary to reinforce the ceiling
frame to prevent shaking.
Consult an architect or carpenter for details.
(4) Install the suspension bolts.
(Use M10 to M12 suspension bolts.)
Use a hole-in-anchor, sunken insert, sunken anchor for
existing ceilings, or other part to be procured in the field to
reinforce the ceiling to bearing the weight of the unit.
(Refer to Fig. 3)
5
THE METHOD OF INSTALLATION
CAUTION
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Hold underside of the unit or hanger bracket without
putting force on other parts when unpacking or moving
the unit.
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As for the parts to be used for installation work, be sure to
use the provided accessories and specified parts desig-
nated by our company.
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(1) Install the unit temporarily.
•
Attach the hanger bracket to the suspension bolt. Be sure
to fix it securely by using nuts and washers (locally pro-
cured) from the upper and lower sides of the hanger
bracket.
(Refer to Fig. 4)
(2) If unnecessary, remove the four transportation
anchors.
•
Loosen the screws.
•
Slide upward and remove the transportation anchors.
•
Securely tighten the screws as before.
CAUTION
•
The screws shouldn’t be removed from the unit and should
be tightened in order to prevent air from escaping.
•
Check that foreign objects such as plastic or paper are not
contained in the unit when installing.
•
Install the unit after checking the indoor (SA/RA) and out-
door (EA/OA) in accordance with the figure duct layout
precaution label.
•
Do not turn the unit upside down.
(3) Adjust the height of the unit.
(Tighten the double nuts securely.)
Model
A
B
VKM50GMV1, VKM50GV1
832
878
VKM80GMV1, VKM80GV1
VKM100GMV1, VKM100GV1
1214
1262
B
A
1764
Unit (mm)
1688
Exhaust air to
outdoors (EA)
(Suspension
bolt pitch)
Fresh air from
outdoors (OA)
Return air from
room (RA)
Supply air to
room (SA)
Electric parts box
(Suspension bolt pitch )
Fig. 2
360(If the inspection
hatch is 450)
140(If the inspection
hatch is 600)
Inspection hatches
Note: All the above parts are locally procured.
Suspension bolt
Antivibration lifting
lug or turn buckle
Anchor bolt
Indoor unit
Ceiling slab
Fig. 3
Fig. 4
Hanger bracket
Washer
Nut
Transportation
anchors
Screw
Double nut
01_3P130768-1A_En.fm Page 4 Wednesday, March 23, 2005 7:00 PM
