FRICO ACC25E - Инструкция по эксплуатации - Страница 23

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22

AC Corinte

to be opened for electrical installation.

Starting-up

Note! When using for the first time or when 
starting up after a long period of disuse, a 
small amount of smoke and a slight odour 
may occur temporarily, which is completely 
normal.

Water coil connection

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.

Use a wrench or similar to hold the 

connections on the air curtain side to prevent 
straining the pipes and subsequent water 
leakage during connection to water supply 
pipe-work. 

The connections to the coil must be 

equipped with shut off valves and drain valve 
to allow problem free removal.

The highest point of the pipes supplying 

the unit with water must also be fitted with a 
bleed valve.

The front panel/service hatch is opened by 

slackening off the screws on the exhaust side. 
See page 4.

Horizontal unit

Connections with internal threads are on the 
upper side of the unit. See dimensions table 
on page 2.

Vertical unit

Connection can be carried out through the 
opening if the intake grille is removed, see 
page 4, front panel/service hatch does not 
need to be opened. 

Connections with internal threads, union 

connection, are on the inside of the unit. See 
dimensions table on page 2.

Adjustment of the air curtain and air flow 

The direction and speed of the air flow should 
be adjusted considering the wind/draught 
load on the opening. Pressure 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 greater the 
angle that is 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.

Service, repairs and maintenance

For all service, repair and maintenance first 
carry out the following:
1.  Disconnect the power supply. Note! Units 

with electrical heaters can be supplied 
from more than one connection.

2.  The front panel/service hatch is opened by 

slackening off the screws on the exhaust 
side. See fig. 4.

Maintenance

Since fan motors and other components are 
maintenance free, no maintenance other 
than regular cleaning is necessary. The 
frequency of cleaning can vary depending 
on local conditions, but undertake cleaning 
at least twice a year. Inlet and exhaust 
grilles, impeller and elements can be vacuum 
cleaned or wiped using a dry cloth. Use a 
brush when vacuuming to prevent damaging 
sensitive parts. Avoid the use of strong 
alkaline or acidic cleaning agents.

Overheating

The average temperature of the outlet air is 
restricted to +40 °C on the electrical unit.

The air curtain unit with electric heater is 
equipped with an overheat protector. If this is 
deployed due to overheating, reset as follows:
1.  Disconnect the electricity using the 

omnipolar switch.

2.  Allow the electrical coil to cool.
3.  Determine the cause of overheating and 

rectify the fault.

The motors in all the air curtain units 
have a built-in thermal safety cut-out to