6
Before installing the unit, place the tubes, the electrical
wires and the condensate drain pipe in the proper position
for the connection.
Adjust the distance between the unit and the ceiling
(max
23 mm) using the nuts of the four suspension bolts.
Verify also the distance between the suspension bracket
and the ceiling
(min 41 mm); a smaller distance can cause
noise in case the unit touches the ceiling.(fig. 4-3)
4-2 Installation of the condensate drain pipe
Utilise a hard, well insulated PVC pipe
(I.D. 18 mm) and fix
it to the unit using a flexible PVC or gummy hose
; tighten
firmly with hose bands
.
The connection must be well insulated, using foamed
polyethylene
(thickness 8mm). (fig. 4-4)
• If it is necessary to increase the height of the drain pipe
somewhat, the portion directly after the connection port can
be raised a maximum of 25 cm. Do not raise it any higher
than 25 cm
, as this could result in water leaks. (fig. 4-5)
• Do not apply force to the piping on the unit side when
connecting the drain pipe. The pipe should not be allowed
to hang unsupported from its connection to the unit. Fasten
the pipe to a wall, frame, or other support
as close to the
unit as possible. (fig. 4-6)
• Do not install an air bleeder
, as this may cause water to
spray from the drain tube outlet. (fig. 4-7)
• Do not install pipe with an upward gradient
from the
connection port. It will cause the drain water to flow
backwards and leak when the unit is stopped. (fig. 4-8)
• Be sure to provide insulation for any drain piping installed
indoors.
Drill a 65 mm diameter hole, insert a PVC pipe. (fig. 4-9)
4. HOW TO INSTALL THE UNIT
EG
Fig. 4-1
Minimum operation and maintenance area. (fig. 4-1)
4-1 Suspending the Unit at the Ceiling
This unit uses a drain pump. Use a carpenter’s level to check
that the unit is levelled
.
Determine the pitch of the suspension bolts
using the
provided full-scale installation diagram
.
The full-scale diagram must be placed in the centre between
the “T” bars; the “T” bar
on the side of the electrical
components box
must be removed temporary. Unit must be
installed in false ceiling only. (fig. 4-2)
Fig. 4-2
Fig. 4-3
