FRICO AD315A - Инструкция по эксплуатации - Страница 26

Thermozone AD300A/E, 400A/E

26

General recommendations

Carefully read this instruction manual before installation 

and use of the AD 300/400A/E

unit. Keep these instruc-

tions in a safe place for future reference.

Application area

The Thermozone AD 300/400A/E air curtains are 

intended for stationary/permanent installation above 

entrances and industrial doors with a height from 2 up to 

4.5 meters, but can also be used for industrial heating 

and drying. The unit can be mounted above a doorway 

or recessed into a ceiling. Protection class: IP20.

Operation 

The air is drawn in at the top of the unit and blown out at 

high velocity across the doorway, providing a protective 

air shield. The air shield minimises cold draughts and 

reduces heat loss through open doorways. For best 

efficiency, the air curtain(s) should cover the whole width 

of the opening.

The air director/grille is adjustable and is normally ang-

led outwards (5-10°) to achieve the best protection.

The airflow can be adjusted by use of the fan speed 

selector (CB30/CB32/RPE)

The efficiency of the air curtain(s) depends on the air 

temperature and pressure differences across the door-

way and any wind pressure.

NOTE! Negative pressure in the building considerably 

reduces the efficiency of the air curtain. Ventilation 

should therefore be balanced.

Mounting 

The units may only be installed horizontally over a 

doorway with the air-stream directed downwards. For 

the protection of wider doorways, several units can be 

mounted next to each other.

For optimal performance it is recommended that a mini-

mum gap of 120mm is maintained above the air-curtain.

The units can be fitted to the wall or suspended from the 

ceiling. Two or three mounting consoles are included 

with the air-curtain. NOTE: all 2 m wide units must be 

fixed using three points of attachment (one on each 

side and one in the middle), when suspended from the 

ceiling or mounted on the wall.

The M8 bolts (2 or 3) which slot into the to the alumini-

um profile on top of the unit can slide sideways, allowing 

the consoles to be mounted at different distances from 

each other. 

(see details page 2.)

Fitted on the wall or beam

1.  Mount the consoles to the wall/beam, see fig. A or B, 

page 3

2. Loosen the nuts on the upper side of the air curtain 

to be able to fit the consoles between the nut and 

the unit.

3.  Mount the unit on to the consoles and tighten the 

nuts.

Suspended from the ceiling

1.  Mount the consoles to pendulums (ordered separa-

tely) to obtain a suspension from the ceiling. (See 

fig. C on page 3) 

GB

2.  Threaded bars and nuts for this kind of mounting are 

not included in the delivery.

Alternative mounting is to use the suspension set 

ADPK1 (see fig. D on page 3)

Electrical installation

The air-curtain(s) should only be wired by a competent 

electrician, and in accordance with national regulations.  

1.  Remove the front plate by pressing a screwdriver  

  or similar in to the two holes (Ø 5mm) underneath 

the edge of the front plate. Press until it clicks and the 

front plate can be openedand removed. See fig. on 

page. 3

2. Remove the lid of the connection box by removing 

the two screws placed on the right side of the unit. 

Remove the knockouts on top of the unit (4xØ23mm, 

2xØ38mm) for routing of electrical supply and remote 

switching cables. 

Different combinations of fan speed and heat output 

are detailed in the wiring diagrams on pages 5-9. The 

cable-glands used must guarantee the protection class 

requirements! 

For the units with electrical heating, the power and 

voltage can be supplied in different connection areas 

(see wiring diagram). In the distribution board it is to 

be indicated that ”the air curtains can be supplied from 

more than one connection”.

Note! It is not advisable to put electrical cables above 

the air intake at the top of the unit, due to high tempe-

ratures.  

Type 

Output 

Voltage 

Min. area

kW 

V 

 mm

2

All manouver  - 

230V~ 

1,5 

AD 310E09  9 

400V3~ 

2,5 

AD 315E14  13,5 

400V3~ 

4

AD 320E18  18(9+9) 

400V3~  10(2,5+2,5)

AD 410E14  13,5 

400V3~ 

4 

AD 415E20  20 

400V3~ 

10

AD 420E27  27(13,5+13,5)  400V3~ 

16(4+4)

Safety

•  Ensure that the area around the intake and  

  exhaust grille is kept free from material    

  which could prevent the air to flow through  

  the unit! 

•  During operation the surfaces of the unit are hot!

•  The unit must not be covered fully or

  partially with clothes, or similar materials,

  as overheating can result in a fire risk!

Adjusting the air curtain and air stream

The direction and the velocity of the air stream should 

be adjusted in regard to the load on the doorway. Pres-

sure forces the air stream to bend towards the interior 

of the room (when the room is heated and the exterior 

is cold).

The air stream should be directed outwards to resist