Unit Design And Operating Logic; Mounting And Set-Up - Vents MPA W Series User Manual

DESIGN AND OPERATING LOGIC

MPA W / MPA W LCD are the complete air supply units which ensure filtering, pre-heating and supply of fresh outdoor air into
the serviced spaces. The units fit rectangular air ducts with nominal size of 400x200, 500x250, 500x300, 600x300, 600x350 and
800x500 mm.
The steel casing has a protective aluzinc coating and a 25 mm mineral wool layer for heat and sound insulation.
The built-in G4 filter ensures high-quality purification of the supply air.
During the winter time and the off-season the supply air is pre-heated by means of a water (glycol) heater. The water heaters are
rated for maximum operating pressure of 1.0 MPa (10 bar) and maximum heat medium temperature of +95 °C.
The air supply unit features a double-inlet type centrifugal fan with forward bent blades and a built-in protection thermostat
which restarts automatically. The electric motor and impeller of the fan undergo two-plane dynamic balancing. The ball bearings
of the electric motor are completely maintenance-free with a minimum service life of 40,000 hours.
MPA ... W LCD features an automatic control system (ACS). The ACS provides comprehensive control of the air supply unit and
adjustment of the vital parameters of ventilation and air conditioning systems. The control units of MPA 800 W LCD ... 2500 W LCD
series units are housed in plastic casings while those of the MPA 3200 W LCD ... MPA 5000 W LCD series units have metal casings.
The control unit casing incorporates automatic equipment circuit board as well as control and protective elements of the power
components.
Fan
Terminal
box

MOUNTING AND SET-UP


DISCONNECT THE UNIT FROM THE POWER SUPPLY PRIOR TO ANY OPERATIONS.
THE ELECTRIC MAINS CONNECTION MUST BE PERFORMED BY A PROFESSIONAL
ELECTRICIAN. THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE STATED ON THE
MANUFACTURER'S LABEL.
THE UNIT MUST BE MOUNTED BY A QUALIFIED EXPERT ONLY, PROPERLY TRAINED AND
HAVING THE REQUIRED TOOLS AND MATERIALS.
The unit must be installed in such a way so that the direction of the arrow shown on the lid matches the direction of air flow in
the system. The unit mounting locations must enable adequate access to the removable lid for maintenance, technical service and
replacement operations.
The unit can be mounted or suspended with threaded rods. The air supply unit must be secured in such a way so as to entirely
prevent its disconnection or collapse (in consideration of the unit weight and the mating surface material) using all the available
L-shaped support brackets with vibration dampers attached to the air supply unit base.
V38EN-02.indd 9
MPA ... W
Outdoor temperature
sensor
Control panel
Supply air
temperature sensor
Fan
Heat Filter
exchanger
MPA ... W LCD
AUTO
ROOM
Terminal Heat
box exchanger
9
Control
unit
Pressure
switch
Filter
29.07.2015 16:03:46