MIUM0001_REV01_ RKB_20140130 MIUM ENG.docx
11
Air duct connections
The ducts must be the correct dimension based on the functions of system and the air diffusion characteristics
of the unit fans.
To prevent the formation of condensation and cut down the sound level it is advised to use internally lined
ducts.
To avoid the transmission of unit vibrations into the environment, it is advised to fit an antivibrating joint between
the fans and ducts. The electrical continuity must be guaranteed between the ducts and the apparatus via an
earth cable.
Water connections
The installation and connecting of the piping is an operation that must be done correctly, otherwise it may compromise
the performance of the system. At worst it may cause irreversible damage to the machine. These operations are to be
effectuated by
qualified personnel.
Condensation outlet connection
The system of drainage must provide an adequate trap able to allow the condensation run off on under pressure
conditions.
The trap must be designed as shown on the following
figure
The trap must have a tap for correct cleaning of the lower part, and must allow an easy disassembly.
The path of the condensation drainage tube must always have a gradient toward external.
Insure that the condensation run-off tube does not interfere with discharge of the unit.
Water coil connection (SAF)
The water heating or cooling coil (
SAF) is supplied with GAS “male” threaded headers.
The tightening must be carried out with extreme care to avoid damage to the copper collectors of the coil.
The path of the tubes must be studied in a way to avoid obstacles should it be necessary to extract the unit coil.
Inlet and outlet water must consent the thermal exchange against the current. Follow instructions found on the
WATER INLET and WATER OUTLET plate.
Provide an air valve at the top of the unit, and a water discharge valve at the bottom.
Reinforce sufficiently the units external tubes to avoid offloading the weight onto the coil.
Once connection has been effectuated, fix the external seal flush against the control panel, in this way avoiding
the passing of air.
The insulation must not rest against the paneling, as this may provoke burning.
For control purposes, organize the interception of the tube side coil when the fan is off, to avoid internal
overheating and possible damage to internal components.
Provide an anti-freeze system.
Provide a cut out switch to isolate the coil from the rest of the circuit in case of extensive maintenance needs.
Should the unit be installed in particularly cold areas, drain completely before plant shut-off long periods.
IMPORTANT: IT IS IMPORTANT NOT TO PLACE IN OPERATION THE UNIT IF THE FAN OUTLETS ARE
NOT DUCTED OR NOT PROTECTED BY A SAFETY NET ACCORDING TO THE ACTAUL REGULATION.
