(2)The length of suspension bolts must be appropriate for a distance between the bottom of the bolt and the bottom of the unit of more than 19/32 in. as shown in Fig. 3-5.

(3)Thread the 3 hexagonal nuts and 2 washers (field supply) onto each of the 4 suspension bolts as shown in Fig. 3-5. Use 1 nut and 1 washer for the upper side, and 2 nuts and 1 washer for the lower side, so that the unit will not fall off the suspension lugs.

(4)Adjust so that the distance between the unit and the ceiling bottom is 15/32 to 43/64 in. Tighten the nuts on the upper side and lower side of the suspension lug.

(5)Remove the protective polyethylene used to protect the fan parts during transport.

3-4. Installing the Drain Piping

(1)Prepare a standard hard PVC pipe (O.D. 1-1/4 in.) for the drain and use the supplied drain hose and hose band to prevent water leaks.

The PVC pipe must be purchased separately. The unit’s transparent drain port allows you to check drain- age. (Fig. 3-6)

CAUTION

Insert the drain pipe until it contacts the socket, as shown in Fig. 3-6, then secure it tightly with the hose band.

Do not use adhesive when connecting the supplied hose.

Reasons: 1. It may cause water to leak from the connection. Since the connection is slippery just after the adhesive has been applied, the pipe easily slips off.

2.The pipe cannot be removed when maintenance is needed.

Do not bend the supplied drain hose 90° or more. The hose may slip off.

Align the hose bands with the end of the hose. Tighten the hose band firmly. Please make sure that the bead is not covered by the hose band. (Fig. 3-6)

 

Suspension bolt

Nuts and washers

Suspension lug

(use for upper and lower)

 

X

Double nut

 

 

 

Notch

 

 

 

 

 

 

 

15/32 – 43/64 (12 – 17)

Unit: in. (mm)

Fig. 3-5

 

 

 

 

 

 

 

Hard PVC

 

 

Hose band

 

socket

Hard PVC pipe

 

 

VP-25

 

Supplied

VP-25

Connection pipe

drain hose

(Field supply)

(Field supply)

(drain port)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PVC adhesive

Align the hose

Packing

(supplied)

band with the end

 

of the pipe

 

Bead

Fig. 3-6

Drain insulator (supplied)

Fig. 3-7

Air bleeder prohibited

CAUTION

Tighten the hose clamps so their locking nuts face upward. (Fig. 3-6)

Fig. 3-8

(2)After checking the drainage, wrap the supplied packing and drain pipe insulator around the pipe. (Fig. 3-7)

NOTE

Make sure the drain pipe has a downward gradient (1/100 or more) and that there are no water traps.

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Do not install an air bleeder

CAUTION

as this may cause water to spray from the drain pipe outlet. (Fig. 3-8)

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2008/02/07 10:55:47

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Sanyo 85464369098000, XMHX1252, XMHX1852, CHDZR09053, CHDZR14053 installation instructions Installing the Drain Piping