1: Group electrical distribution box | 2: Electrical equipment cubicle | 3: Exhaust air | 4: Outdoor air | 5: Supply: 230 V, 10 A plug-in
connection | 6: Supply demarcation of the ventilation unit | 7: Extraction from cooker hood, bypasses the heat exchanger | 8: Extract
air | 9: Supply air | 10: Modular cables with RJ9-connectors | 11: Control panel
SYMBOL DESIGNATION EXPLANATION
TC01 THERMOSTAT Reheating control/diagnostics for control
T1 TEMPERATURE SENSOR Temperature sensor, outdoor air
T3 TEMPERATURE SENSOR Temperature sensor, exhaust air
T4 TEMPERATURE SENSOR Temperature sensor, supply air
T6–T9 EXTERNAL TEMPERATURE SENSOR Connected to SET, the functions are determined through the programming of the SET unit (accessory)
TZ03 OVERHEATING PROTECTION Overheating protection, manual reset
TZA1 OVERHEATING PROTECTION Automatic overheating protection
CH COOKER HOOD SWITCH Cooker hood function
SET CONNECTION UNIT Extension module SET, Smart Extension Temperature module (accessory)
SEM CONNECTION UNIT Extension module SEM, Smart Extension Modbus module (accessory)
HR HEAT EXCHANGER Heat exchanger
SD2 DAMPERS Shut-off dampers (accessory)
SK AIR HEATER External electric air heater
HU AIR HEATER External air heater (accessory)
CU AIR COOLER External air cooler (accessory)
RH SENSOR Humidity sensor
RH + CO2 SENSOR Humidity and carbon dioxide sensor (accessory)
RH + VOC SENSOR Humidity and VOC sensor (accessory).
8.6 Control diagram
DESCRIPTION OF FUNCTIONS
CONTROL FUNCTIONS:
The ventilation unit can be controlled from a separate Smart control panel or a Smart cooker hood.
When the ventilation unit is controlled from a cooker hood, you can select Home/Away/Boost mode. You can select a damper-open period of 30, 60 or 120 minutes. The
damper inside the cooker hood will then be open for this period.
The setting value for the supply air temperature can be selected from a Smart control panel. Reheating can be shut off from the control panel.
PROTECTIVE SAFETY FUNCTIONS:
– Overheating protection for air heaters for reheating: An electric air heater is equipped with automatic overheating protection TZA1 and manual overheating protection
TZ03 (setting value 60 °C).
– The fans have automatic overheating protections.
ACTIONS IF PROTECTIVE DEVICES TRIP:
– If the manual overheating protection trips, find and rectify the fault, and then press the acknowledgement button inside the ventilation unit.
– The automatic overheating protections of the fans will reset themselves when the temperature has dropped below the setting value.
REMOTE CONTROL: Read the instructions for the ventilation unit and familiarize yourself with the Modbus parameter list.
CH
(500W)
M
T
1
HR
T
3
01
01
T6-T9
T
4
TC
01
HU
CU
M
M
SET
SK
LP/VP
I03-I05
A04
ModBus
I01-I02
1
2
3
5
6
7
8
9
10
11
4
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