FRICO AR320E18 - Инструкция по эксплуатации - Страница 30

AR 300 E/W

29

GB  

Control

The IR-eye is sensing if the door is open or closed. A thermostat is mounted in the air intake 
and heat/no heat is activated with a push button on the control device on the unit. External 
room sensor (AR300ERS) is available as an accessory. Alarm is indicated with a red LED .

Adjusting

The IR eye is mounted on the AR300. A 
relector kit is also supplied (delivered in a 
plastic bag). The relector kit is applied to the 
door so that LED 1 (1) lights when the door 
is closed. The door sensor (6) can be directed 
up/down in 5 steps, to ”locate” the relector 
disk , see ig.6. The relector kit can be angled 
in order for the IR-eye to "locate" it better. 
See the chart and igure on page 4. Use the 
cylinder included for this, which can be cut 
into desired angle. If the distance between the 
eye and the door is too far an external door 
contact (AR300DS) should be used.

Test mode

There is a test mode to check that everything 
functions.
1. Press the button (5) and hold it in until all 

the LED´s illuminate. This shows that the 
test mode is active. The unit is started at 
low speed.

2. Press the button briely (5). The unit 

increases to high speed.

3. Press the button once again (5). The unit 

is running on high speed and half output 
(AR300E) respectively the actuator is 
opening the valve (AR300W).

4. Press the button once again. The unit 

increases to high speed with full power. 
(AR300E).

5. Press the button one last time (5). The test 

is complete.

Heat/no heat mode

There is a possibility to choose between heat 
mode and no heat mode (heat is blocked) 
using button (5). LED 2 (2) is lit when the 
heat mode is active.

Function - open door

The thermostat is set to the desired room 
temperature using the thermostat knob inside 
the unit. The desired high speed is set using 
the speed selector.

The fan runs at high speed and the heat at 

full power when the temperature is less than 
the desired temperature +2 degrees . When 
the temperature is above the desired value +2 
degrees, the fan runs at high speed and the 
heat is switched off.

When the door is closed the unit continues 

to run on high speed for 60 s and another 60 s 
on low speed and then switched off.

Function - closed door

The thermostat is set to the desired room 
temperature using the thermostat knob inside 
the unit.

If the temperature falls below the desired 

temperature, the fan starts at low speed and 
the heat at half power, if the temperature  
drops below 2 degrees below the desired 
temperature, the fan starts at the previous 
set high speed (for open door) and heat at full 
power.

Alarm

There is a potential free contact (normally 
open) for alarm indication
LED 3 is lit when there is an alarm (3). 
Summation alarm consisting of two 
temperature sensors. 
Alarm is indicated if:
1. The unit is calling for heat but the 

difference between outlet temperature and 
the room temperature is less than 5 degrees 
after 90 s. 

2. The heat is switched off but the difference 

between the outlet temperature and the 
room temperature is more than 5 degrees 
after 90 s.

3. The internal temperature in the unit is 

exceeding  50 °C.

Check the motors and that the air supply 
is suficient (grille not blocked). Also check 
incoming water temperature and that the 
valves opens and closes. Stop the alarm by 
disconnecting the power supply to the unit.