Dai VKM80GBV1 설치 매뉴얼 - 페이지 5

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(2) Use suspension bolts for installation. Check whether

the ceiling is strong enough to support the weight of

the unit or not. If there is a risk, reinforce the ceiling

before installing the unit.

(Installation pitch is mentioned as follow. Refer to it to check

for points requiring reinforcing.)

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 control box

so that the air filters, heat exchange elements, fans, and

humidifier elements can easily be inspected and serviced.)

1764

1688

(Suspension

bolt pitch)

Exhaust air to

outdoors (EA)

Fresh air from

outdoors (OA)

360(If the inspection

hatch is

450)

140(If the inspection

hatch is

600)

Model

VKM50GBMV1, VKM50GBV1

VKM80GBMV1, VKM80GBV1

VKM100GBMV1, VKM100GBV1

(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)

Indoor unit

Note: All the above parts are locally procured.

Fig. 3

3P130768-6L English

Unit (mm)

Return air from

room (RA)

Supply air to

room (SA)

Control box

Inspection hatches

Fig. 2

(mm)

832

878

1214

1262

Ceiling slab

Anchor bolt

Antivibration lifting

lug or turn buckle

Suspension bolt

THE METHOD OF INSTALLATION

CAUTION

<<Hold underside of the unit or hanger bracket without

putting force on other parts when unpacking or moving

the unit.>>

<<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.>>

(1) Install the unit temporarily.

• Attach the hanger bracket to the suspension bolt. Be sure

to fix it securely by using nuts (M10, M12) and washers

(M10 with external dia. 30 to 34 mm, M12 with external

dia. 36 to 38 mm) (locally procured) from the upper and

lower sides of the hanger bracket. (Refer to Fig. 4)

Hanger bracket

Duct layout precaution label

Transportation

anchors

Screw

(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.)

Nut

Washer

Double nut

Fig. 4