Assembly and operating instructions
General Instructions
Read these instructions carefully before
installation and use. Keep this manual for
future reference.
The guarantee is only valid if the units
are used in the manner intended by the
manufacturer and in accordance with the
Frico mounting and operating instructions.
Application area
The Thermozone AGI air curtain is supplied
with
ambient heat or water coil and is
intended to be installed above industrial- and
warehouse doors up to 6,0 meters height.
Protection class IP
.
Function
Air is drawn in at the rear of the unit and
blown out downwards so that it shields the
door opening and minimizes heat loss. To
achieve the optimum curtain effect the
unit must extend the full width of the door
opening.
The grille for directing exhaust air is
adjustable and is normally angled outwards to
achieve the best protection against incoming
cold air.
The efficiency of the air curtain depends
on the air temperature, pressure differences
across the doorway and any wind pressure.
NOTE! Negative pressure in the building
considerably reduces the efficiency of the air
curtain. The ventilation should therefore be
balanced.
Mounting
1.
Place the air curtain in the correct position.
2. Mark the holes and remove the air curtain.
3.
Drill holes into the floor and replace the air
curtain.
4
.
S
crew the
frame to the floor
.
See fig. 1.
The unit is installed vertical or horisontal as
close to the door as possible.
For the protection of wider doorways, several
units can be mounted next to each other.
Ensure that the front panel/service hatch
is accessible and can be fully opened. For
minimum distance see fig. 2
Electrical installation
The installation, which should be preceded by
an omnipolar switch with a contact separation
of at least 3 mm, should only be wired by a
competent electrician, in accordance with the
latest edition of IEE wiring regulations and in
accordance with this instructions.
The unit is
connected
to a connection box on the side of
the air curtain, below the pipe connections.
Water coil connection (AGI W)
The installation must be carried out by an
authorised installer. The water coil has copper
tubes with aluminium fins and is suitable for
connection to a closed water heating system.
The heating coil must not be connected to
a mains pressure water system or an open
water system.
Note that the unit should be preceded by a
regulating valve, see eg Frico valve assemblies.
The pipe
connections (
1
"
and 1 1/2"
,
internal thread)
are connected on the top side
of the unit.
The connections to the coil must be
equipped with shutdown valves to enable easy
disassembly.
Adjustment of air flow
The direction and speed of the air flow
should be adjusted considering the load on
the opening. Compressive forces affect the
air stream and make it bend inwards into the
premises (when the premises are heated and
the outdoor air is cold). The air stream should
therefore be directed outwards to withstand
the load. (Generally speaking, the higher the
load, the bigger the angle needed.)
Basic setting of fan speed
The fan speed when the door is open is set
using the speed control. Note that the air flow
direction and speed may need fine adjustment
depending on the loading of the door.
AGI A/W
19
