FRICO AG5020A - Инструкция по эксплуатации - Страница 20

Thermozone AG  4500/5000 A/W

20

GB

General Instructions

Read these instructions carefully before 
installation and use. Keep this manual for 
future reference.

The guarantee is only valid if the 
Thermozone units are used in the manner 
intended by the manufacturer and in 
accordance with the Frico mounting and 

operating instructions.

Application area

The AG4000W air curtain unit is intended 
for installation above entrances and doors 
from 2 metres up to 4 metres in height. The 
efficiency of the air curtain(s) depends on the 
air temperature, pressure differences across 
the doorway and any wind pressure. 

AG4000W is intended for connection to a 

water heating system.

AG4000 is installed above the entrance.
Protection class IP23.

Operation

Air is drawn in at the front side of the unit 
and blown out downwards towards the 
entrance so that it shields the door opening 
and minimizes heat loss. To get the best 
curtain effect the unit must extend the full 
width of the door opening. 

The grille for directing supply air is 

adjustable and is normally angled outwards to 
achieve the best protection against incoming 
cold air. 

The airflow can be adjusted by use of the fan 

speed selector. 

The efficiency of the air curtain(s) 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!

Installation

The unit is installed horizontally with the 
supply air grille downwards as close to the 
door as possible, preferably against the wall  

 
and immediately above the doorway. For the 
protection of wider doorways, several units 
can be mounted next to each other. Ensure 
that the service hatch is accessible and can be 
fully opened.

The unit has 4 (6 on 2 and 2,5 meter 

models) M10 fixed nuts on the upper side for 
ceiling installation using threaded bars, or for 
installation using wall brackets (accessories). 
See dimension diagrams pages 2-3.

Electrical installation

Electrical connection may only be carried 
out by an authorized electrician, and in 
accordance with these instructions and the 
applicable regulations.

1. The service hatch is opened by slackening 

off the screws on the underside of the unit 
as illustrated on page 3.

2. The unit is connected via one of the cable 

glands in the upper side of the unit.

 
Different combinations for controlling fan 
speed are available. See wiring diagrams 
(pages 5-9).

Water coil connection

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.

The water pipes are connected to the 

terminals on the upper side of the unit, see 
page 2. Use a wrench or similar to hold the air 
curtain connections to prevent straining the 
pipes and subsequent water leakage during 
connection to water supply pipe-work.

The connections to the heating coil must be 

equipped with shut off valves 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 installation must 
be carried out by an authorised installer.

Mounting and operating instructions