Control Diagram - Swegon CASA R2 SMART Installation, Commissioning And Maintenance Instruction

R2 Smart

8.6 Control diagram

1
2
T
1
3
M
SET
M
4
SK HU/CU
1: Group electrical distribution box | 2: Electrical equipment cubicle | 3: Exhaust air | 4: Outdoor air | 5: Power supply: 230 V, 10 A
with plug-in connection | 6: Supply demarcation of the ventilation unit | 7: Extract air from cooker hood | 8: Extract air | 9: Supply air |
10: Modular cables with RJ9-connectors | 11: Control panel
SYMBOL DESIGNATION
TC01 THERMOSTAT
T1 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
CO2 SENSOR
VOC SENSOR
TEMP SENSOR
DESCRIPTION OF THE FUNCTIONS
CONTROL FUNCTIONS:
The ventilation unit can be operated from a separate Smart control panel or a Smart cooker hood.
When the ventilation unit is controlled from the cooker hood in the Home/Away/Boost modes and cooker hood damper open time can be set to 30, 60 or 120 minutes.
(For Disco, up to Max 60 min.)
The supply air temperature setpoint can be changed from the Smart control panel. The post heating can be disabled from the control panel.
SAFETY FUNCTIONS:
– Overheating protection for the post heater: Electrical heater is equipped with a automatic thermostat TZA1 and a thermostat TZ03 with manual reset (set value 60 °C).
– The fans have automatic overtemperature protective devices.
REMEDIAL MEASURES TO TAKE IF THE SAFETY EQUIPMENT TRIPS:
– If an overheating protection with manual reset trips, locate and correct the fault; then press the reset 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 OPERATION: Study the ventilation unit manual and the list of parameters for Modbus.
30
All rights to changes reserved.
0 1
5
0 1
M
HR
EXPLANATION
Post heater control / control diagnostics
Temperature sensor, outdoor air
Temperature sensor, supply air.
Connected to SET, the functions are determined through the programming of SET (accessory)
Overheating protection with manual reset
Automatic over temperature protection
Cooker hood function
Smart Extension Temperature module, accessory
Smart Extension Modbus module, accessory
Heat exchanger
Shut-off dampers, accessory
External electric preheater, accessory
External air heater, accessory
External air cooler, accessory
Humidity sensor
Carbon dioxide sensor, accessory
VOC sensor, accessory
Temperature sensor, extract air
TC
01
T
4
RH
(400W/900)
TEMP
6
2020-11-27
I03-I05
SEM
A04
Modbus
SET
10
I01-I02
T
T6-T9
4
HU CU
11
9
CH
8
7