Panasonic S-12MU1U6 Installation Instructions Manual page 11

(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" as shown in
Fig. 3-5.
(3) Thread the 3 hexagonal nuts and 2 washers (fi eld
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". 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") 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
drainage. (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 fi rmly. Please make sure
that the bead is not covered by the hose band.
(Fig. 3-6)
CAUTION
(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.
VRF_Indoor_US.indb 11 VRF_Indoor_US.indb 11
Tighten the hose clamps so
their locking nuts face upward.
(Fig. 3-6)
Nuts and washers
(use for upper and lower)
Double nut
15/32 – 43/64 (12 – 17)
Fig. 3-5
Hose band
Supplied
Connection pipe
drain hose
(drain port)
Bead
Packing (supplied)
Drain insulator (supplied)
Fig. 3-6
Drain insulator (supplied)
Fig. 3-7
Air bleeder prohibited
Fig. 3-8
●
Do not install an air bleeder
as this may cause water to
CAUTION
spray from the drain pipe
outlet. (Fig. 3-8)
11
Suspension bolt
Suspension lug
Notch
Unit: in. (mm)
Hard PVC pipe
VP-25
PVC adhesive
(Field supply)
2011/09/30 12:22:56 2011/09/30 12:22:56