USER
AND MAİNTENANCE MANUAL
www.airflow.com
11
10. CONTROL
Operation
Description
Basic
controller
Pro
controller
Fan Speed
Control
3 steps fan speed control of supply and exhaust fan is
available.
3 steps (2 fans)
(High/Med/Low)
3 steps (each fan)
(High/Med/Low)
Boost Function
Increases the
fan speed:
Alternative-1: Via boost button on the control board
Alternative-2: Via dry contact or light power input (230V)
(like kitchen light, bathroom light etc.) on PCB board.
Standard
Standard
Filter Function
There are 2 alternatives to control filters:
Alternative-1:
R
ecords
the
run time of the unit and
set
time expires
,
the
control board gives an alert for filter
change.
Alternative-2: Filter change time can be controlled with
pressure switch mechanically. With this method, when
filter needs to be changed control board gives an alert .
Standard
Optional
Standard
Optional
By-Pass Function
Filtered fresh air is supplied indoor without passing in heat
exchanger.
Standard
Standard
Sensor (VOD)
Fans are running continuously in accordance with CO2
sensor, air quality sensor or humidity sensor.
-----------
Optional
Frost Protection
Function
Where outdoor air is too low, this function is a protection
method to prevent heat exchanger from freezing.
Standard
Standard
Modbus Function
It controls all functions of unit via PC or central automation
board.
Standard
Standard
Weekly Timer
Function
Unit can be programmed to operate on certain periods of
the week.
All possible working
-----------
Standard
Warnings
- Filter change
- Fan Fault
- Pre-Heater Fault
- Heater Fault
Standard (LED
indicator)
Standard (Display
error code)
Child-Proof
Protection
Function
It is used to lock the keypad.
Standard
Standard
10.1. Filter Function
This function controls filter change time. There are 2
options available:
1.
Basic run time.
The f
ilter
maintenance
change time is
factory
set a
t
particular run time by factory settings.
When set time
expires,
controller will give
an alert (red warning light flashes) for filter change. After filter
on
the
digital
maintenance/change
is done,
filter setting time can be
reset by pressing
simultaneously and
controller
; and
hold and
for 3 sec to reset filter time on the basic controller
.
Note: Default run time set value is changeable
when using the digital controller which is an optional controller.