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DESIGN AND OPERATING PRINCIPLE
The fan consists of the casing 1, the electric motor attached to the inner fixing bracket 4, the cover 2 that is fixed to the casing with screws
3 (the casing spigot diameter and the cover diameter are equal to the connected air duct diameter), the terminal box 5 that incorporates
a terminal block and a capacitor and enables connection of the fan to single-phase power mains.
The fan models with a temperature and speed controller are equipped with a speed control knob 9, a thermostat control knob 10, a fan
on/off LED light indicator 11 and a thermostat LED light indicator 12 that are located on the terminal box cover.
The fan models with the speed controller are equipped with a speed control knob 9 which is located on the terminal box 5 cover.
The fan models with a speed controller or with a speed and temperature controller are connected to power mains through a power cable
with a plug.
INSTALLATION AND SET-UP
The fans are designed for vertical or horizontal mounting. Air motion in the system must be in compliance with the direction of the arrow
on the fan casing. Install a hood on outlet (discharge) spigot side in case of the vertical fan installation. Provide a straight air duct section
at least 1 m long on the intake spigot side in case of horizontal fan installation with maximum allowable humidity.
Mounting sequence:
•
Remove the bolt from the casing 1 and install the fixing brackets in such a way so that the holes on the fixing brackets are aligned
with the heads of the screws 3.
•
Fix the fixing brackets on the casing with bolts.
•
Drill the holes in the mounting surface to match the fitment holes of the fixing brackets.
•
Fix the fan with the screws.
•
Connect the air ducts of the respective size to the fan and fix them with clamps.
6
VKM Un
9
11 12
10
VKM P
9
Fig. 1
6 – outer fixing bracket
7 – screws
8 – bolt
9 – knob for controlling fan impeller rotation speed
10 – thermostat control knob
11 – fan on/off LED light indicator
12 – thermostat LED light indicator
READ THE USER'S MANUAL BEFORE INSTALLING THE UNIT.
5
1
3
2
8
7
6
4
m
VKM
www.ventilation-system.com
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