3
2 . O p e r a t i n g t h e e q u i p m e n t – C PA c o n t r o l l e r
The equipment operated using a CPA controller with touch-screen display.
Description of functions:
Controls are divided into user and servicing sections (accessible by service technicians only).
Ventilation capacity can be set in a range of 0-100 %.
Options to switch on the air reheater, air preheater and shut-off damper servo drive.
Control in manual mode or via separate weekly programs for ventilation capacity and air reheating.
Additional operating mode “Party” (a temporary increase in capacity) and “Holiday” (temporary ventilation switch-off).
An option to control ventilation automatically by external sensors (air quality, CO
2
, relative humidity etc.).
An option to start increased ventilation using external switches, e.g. in the bathroom or toilet.
An option to limit maximum and minimum ventilation capacity.
Displays the current room temperature and operating mode.
Alerts to the need for air filter replacement.
Display:
1.
Time
2.
Alerts (e.g. the need for filter replacement)
3.
Date
4.
Current room temperature
5.
Air reheating indication (if the system includes a
reheater)
6.
Ventilation capacity setting in %
7.
Selected operating mode
Description of controls:
Short press – general controls and parameter settings
Long press (3 s) of the ventilation capacity symbol – quick operation on / off
Long press (5 s) at the top of the display – entering the service menu
2.1.
Performance settings
When a CPA controller is used for controlling and programming, the capacity is shown (displayed) in per cents of the maximum.
The table shows approximate air flow rates (m
3
/h); they may vary depending on the duct network.
DUPLEX
EASY
Off
0
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
250
OFF
Unit responds to
sensors and external
inputs
20
35
95
120 155 180 200 220 240
250
300
OFF
Unit responds to
sensors and external
inputs
20
40
110 160 200 230 250 275 305
315
400
OFF
Unit responds to
sensors and external
inputs
30
50
140 200 260 300 320 350 380
400
Summary of Contents for DUPLEX 250 Easy
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