Installation
Align and level the unit by adjusting the nuts and locknuts
on the threaded hangers, maintaining a distance of 25
-30 mm between the sheet metal body and the underside
of the false ceiling.
Reposition the «T» bar and align the unit in relation to
the bar by tightening the nuts and locknuts. After the
condensate drain pipe and the water ducts have been
connected check, check to make sure that the unit is
level
.
Condensate drain pipe
To ensure correct condensate water flow, the
drain pipe should have a gradient of 2% without
obstructions. Furthermore an odour trap of at least
50 mm depth should be made to prevent unpleasant
odours from reaching the room.
Water connections
To make water connections to the heat exchanger or the
valves use threaded joints and suitable materials that can
ensure perfect tightness.
The unit is provided with inlet and outlet female
connections for both 2 and 4 pipe models. An air bleed
valve is also provided
adjusted using a 8 mm wrench..
Models
Connections
dimension (Ø)
61
62
63
61*
62*
63*
*Hot water circuits, four-pipe version.
MELODY 2
, which can be
Models
Connections
dimension (Ø)
92
93
94
93*
94*
-
-
Condensate may be discharged at a maximum height
of 200 mm above the unit, as long as the ascending
tube is vertical and aligned with the drainage flange.
If it is necessary to discharge the condensate from
a level above 200 mm, install an auxiliary water
discharge pump and float valve. A float valve is
recommended to stop the flow switch if there is a fault
at the auxiliary pump.
The condensate pipe must be insulated with a
condensation-proof material such as polyurethane,
propylene or neoprene of 5 to 10 mm thickness.
If more than one unit is installed in the room, the drain
system can be made as shown in the drawing fig.23.
To drain the unit completely, refer to "SYSTEM
DRAINAGE" in the Maintenance section.
Checking
pump or check the pipe slope and make sure the pipes
are not obstructed.
GB - 26