Control Diagram - Swegon CASA R3 Smart Installation, Commissioning And Maintenance Instructions

8.6 Control diagram

1
2
T
1
SK LP/VP
4
M
SET
3
M
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
TC01 THERMOSTAT
T1 TEMPERATURE SENSOR
T3 TEMPERATURE SENSOR
T4 TEMPERATURE SENSOR
T6–T9 EXTERNAL TEMPERATURE SENSOR
TZ03 OVERHEATING PROTECTION
TZA1 OVERHEATING PROTECTION
CH COOKER HOOD SWITCH
SET CONNECTION UNIT
SEM CONNECTION UNIT
HR HEAT EXCHANGER
SD2 DAMPERS
SK AIR HEATER
HU AIR HEATER
CU AIR COOLER
RH SENSOR
RH + CO2 SENSOR
RH + VOC SENSOR
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.
32 www.swegon.com
0 1
5
0 1
M
HR
EXPLANATION
Reheating control/diagnostics for control
Temperature sensor, outdoor air
Temperature sensor, exhaust air
Temperature sensor, supply air
Connected to SET, the functions are determined through the programming of the SET unit (accessory)
Overheating protection, manual reset
Automatic overheating protection
Cooker hood function
Extension module SET, Smart Extension Temperature module (accessory)
Extension module SEM, Smart Extension Modbus module (accessory)
Heat exchanger
Shut-off dampers (accessory)
External electric air heater
External air heater (accessory)
External air cooler (accessory)
Humidity sensor
Humidity and carbon dioxide sensor (accessory)
Humidity and VOC sensor (accessory).
TC
01
I01-I02
T
4
(500W)
HU
T
3
6
R2.060219
I03-I05
A04
ModBus
10
11
T6-T9
9
CH
CU
8
7
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