Panasonic ERV+DX Series Installation, Use And Maintenance Manual page 25

3.5 Positioning of the machine
In the continuation are illustrated some sequences of the
assembly:
1. Carry out the drilling on the ceiling and fix six M8
threaded rods as shown in the figure.
2. Position the unit on the six threaded rods (eight brac-
kets available).
3. Block the unit by locking the bolts.
3.6 Drain tray connection
Close to supply air duct connection, a drain tray outlet
(1/4" hose pipe) shall be connected for discharge of con-
densed water during cooling mode.
It is strongly suggested to install a water trap close to
the unit in order to avoid odors coming inside and to get
a slope on discharge pipeline.
3.7 Connection to the ducts
ImPortaNt: It IS ProhIBItED to Start UP thE UNIt, If thE faNS oUtlEtS arE Not CaNalIzED or ProtECt WIth aN aCCI-
• The ducts must be dimensioned in function of the system and of the air flow characteristics of the unit ventilators. A wrong calculation of the
ducts may cause loss of power or the possible activation of devices fitted on the unit.
• Severe bending, several bending and diameter reductions of the ducts should be avoided to minimize the pressure loss.
• In order to prevent the formation of condense and to reduce the noise level it is advised to use insulated ducts.
• If rigid ducts are used, to avoid the transmission of possible vibrations of the machine in the atmosphere, it is advised to interpose an antivi-
brating joint between the air outlets and yhe ducts. The electrical continuity between duct and machine must however be guaranteed through
a earth cable.
• The distance between indoor inlet port and indoor intake port should be as far as possible
• In order to prevent the penetrations of rains, the ducts connecting the unit with the outside should be protected by grilles. Moreover the ducts
should be a little tilted
Outside intake duct
Outside
intake air
DENt-PrEvENtIoN NEt aS PEr UNI 9219 aND SUCCESSIvE NormS.
Threaded rods (min 6)
Brackets
Indoor Intake
Exhaust air
duct
Installation, Use and Maintenance Manual - ERV+DX series
Supply air duct
duct
Room intake
opening
Inside supply
opening
page 25