Swegon CASA SDHW250F, Manual

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SDHWM.210119
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• Install the SET-connection unit in an appropriate position in the vicinity of the sensor and actuator.
• Connect the SET-connection unit
(4) to the ventilation unit (1) by connecting RJ45 cables to the SET1 and SET2 connectors.
• Install the supplied temperature sensor (3) in the outdoor air duct, before the battery seen from the direction of
flow. Connect the sensor to the SET module’s free Sensor connection.
• Connect the heating medium pump’s power supply to the SET-connection unit’s other relay output according to
the drawing.
• Install any actuators according to the manufacturer’s instructions and connect the control cable to the SET connec-
tion unit’s relay outputs.
2. Electric and control cables
1. CASA Smart ventilation unit*
2. SDHWM air heater/cooler
3. Outdoor air temperature sensor
4. SET connection unit
5. Heat pump*
6. Solenoid valve*
7. Circulation water pump*
8. Vent valve
9. Power source 24 VDC*
10. Operating switch for the circula-
tion water pump ON/OFF*
*) Not included in the delivery.
NOTE!
If the SET module is used for
230 VAC control, the module must
be installed, according to the electri-
cal safety directives, in a separate
enclosure.
NOTE!
Make sure that the strain
relief is arranged for the connections
according to the electrical safety
directives.
NOTE!
Only a qualified electrician
may make the electrical connections.
M
M
T
230V 24V
24VDC
Smart Extension Temperature module
Sensor
T6 T7
T8 T9
Smart unit
SET2 SET1
DI
max 50 VDC
NC NC NC
1 2 3 4 5 6 7 8 9 10 11 12
max 250 V / 6 A
Relay 1
4 3 2 1
max 250 V / 6 A
Relay 2
NC
4 3 2 1
AO3 AO2 AO1
NC NC NC
SET
1
2
3
5
6
7
8
4
9
1 0
10
Smart Extension Temperature module
Sensor
T6 T7
T8 T9
Smart unit
SET2 SET1
DI
max 50 VDC
NC NC NC
1 2 3 4 5 6 7 8 9 10 11 12
max 250 V / 6 A
Relay 1
4 3 2 1
max 250 V / 6 A
Relay 2
NC
4 3 2 1
AO3 AO2 AO1
NC NC NC
SET
1 1
230 V
7
9 6
3