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Electronic control
Introduction
This section provides a detailed description of the electronic controls.
Function
The unit's main controls are placed on the main PCB together with other outlets and in-
puts.
The control panel with LED displays is placed under the main controls, and connected to
the
main PCB via FFC.
System
Illustration of the system control architecture:
architecture
HCV500 Unit
HCV300 unit
Keypad with LED
T1-T4
Temperature
sensors
Extract fan
Supply fan
Air quality demand
sensor
VOC
Air humidity (RH%)
demand sensor
Bypass 230VAC
Preheater 230VAC
Ethernet router with
HAC2 on MODBUS
HCP10 On Modbus
Main controller PCB
High/low fan speed
External connected items
HRC 3 wireless
remote
DHCP
Building
management
system
(Dantherm
accessory)
(wired Remote)
2 pce digital in
Etc.
USB service port
230VAC input
Continued overleaf
11
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