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MOUNTING AND SET-UP
While mounting the unit provide enough access for maintenance or repair work. The minimum recommended clearances between the unit
and the adjoining walls are given in the figure below.
Before starting the unit make sure that the rotary heat exchanger cells are clean and free from damage. Check the belt tension. The tension
force is regulated by the spring on the motor suspension mount.
The unit may be suspended on a threaded rod that is fixed inside a dowel or may be rigidly fixed on a horizontal plane.
А
B
K
60 mm
To attain the optimal performance of the unit and to minimise turbulence-induced air pressure losses connect a straight air duct section
on both sides of the unit while mounting.
Minimum straight air duct length:
• equal to 1 air duct diameter on intake side;
• equal to 3 air duct diameters on outlet side.
If the air ducts are not connected or the connected air ducts are too short, protect the unit parts from ingress of foreign objects by covering
the spigots with a protecting grille or other protecting device with mesh width not more than 12.5 mm to protect internal parts of the unit
against penetration of foreign objects.
SAFETY PRECAUTIONS
The unit must be mounted to a rigid and stable structure.
The unit must be suspended using anchor bolts. Make sure that the base structure is capable of sustaining the unit weight. Otherwise reinforce
the mounting location with beams or similar elements.
If the bolts used for the unit mounting are too short the unit can generate abnormal
noise and resonate with the ceiling. Use bolts of sufficient length to prevent resonance.
If the abnormal noise is generated at the spiral air duct joint replace the spiral air duct
with a flexible one to prevent resonance. Flexible anti-vibration connectors are another
alternative for dealing with resonance.
UNIT MOUNTING
Install M8 anchor bolts before proceeding with the installation. Insert the anchor
bolt into the suspended mounting opening and secure it with nuts and washers. The
unit mounting example is shown in the illustration on the right.
SUSPENDED MOUNTING
SERVICE ACCESS
UNIT MOUNTING ON A HORIZONTAL PLANE
Model
A, mm
K
VUT R 400 WH EC
800 mm
G 3/4’’
VUT R 700 WH EC
900 mm
VUT R 900 WH EC
VUT R 1200 WH EC
VUT R 1500 WH EC
1000 mm
G 1’’
VUT R 2000 WH EC
Threaded rod
Nut
Nut and lock nut
L-shaped bracket
Washer
Vibration absorbing rubber
B
- provide enough distance for connection
of a water heater.
