4
SDHW. 180118
03/06/2015 Swegon reserves the right to make changes.
www.swegonhomesolutions.com
Heating function
Put the heating function into service from the menu
item
External after heater.
When using the air heater, heating always occurs
primarily through control of the air heater, yet if the
air heater’s heating capacity is insufficient to maintain
the required temperature or if the freeze protection is
activated, a possible internal electrically powered air
heater in the unit is also controlled. Thus, do not turn
off the internal air heater for after-heating when using
external after heating.
Outdoor air limit
If necessary set
Outdoor air limit after heating.
After
heating is permitted when the outdoor temperature falls
below the set value.
Select the functions for the temperature sensors used
and fine adjust the measurements if necessary from the
Sensor/Control
menu.
Supply air sensor
Select the SET sensor input to which supply air sensor is
connected:
“SET T6 -T9” = SET-connection unit’s Sensor inputs.
“Internal” = The unit’s internal supply air temperature sensor.
Air heater sensor (freeze protection)
Select the SET sensor input to which supply air heater
sensor is connected:
“SET T6 -T9” = SET-connection unit’s Sensor inputs.
Room air sensor
Select the room air sensor which is used:
“Internal” = The unit’s internal extract air temperature sensor.
“SET T6 -T9” = SET connection’s Sensor inputs.
“UP1” = Internal temperature sensor in CASA Smart
control panel 1.
Sensors / controls
Fine tuning Room air
Room air sensor
0,0°C
Supply air
22,2°C
Fine tuning Supply air
Supply air sensor
0,0°C
Outside air sensor
Water radiator sensor
SET Relay 1
SET Relay 2
Internal
Internal
Off
Off
Internal
Internal
18,2°C
The commissioning of the air heater is performed with a
Smart control panel.
Main menu/Settings/(1234)/Heating and cooling
4. Commissioning
Important
Only a qualified electrician may make the
electrical connections.
!
!
3.3 Electric and control cables
• Install the SET-connection unit in an appropriate posi-
tion in the vicinity of the sensor and actuator. Connect
the CAT45 cables (2 pcs.) supplied with the SET unit to
the specified connections on the ventilation unit.
• Install the supplied temperature sensor in the supply air
duct, after the air heater seen from the direction of flow.
• Connect the sensor to the SET module’s free Sensor
connection.
• Install it in the supplied anti-frost sensor by taping it
to the heater’s return pipe. Make sure the sensor is
sufficiently insulated so that the ambient temperature
does not affect the measurement. Connect the
sensor to the SET module’s free Sensor connection.
• Connect the valve motor control and the power
source supplied with the delivery to the connections
shown on the function diagram.
• Install a possible room temperature sensor (PRTG,
accessory) in the room area whose temperature the
system should control. Connect the sensor to the SET
module’s free Sensor connection.
• Install any actuators according to the manufacturer’s
instructions and connect the control cable to the SET
card’s relay outputs according to the function diagram.
NOTE!
If the SET module is used for 230 VAC control,
the module must be installed, according to the electrical
safety directives, in a separate enclosure.
NOTE!
Make sure that the strain relief is arranged for the
connections according to the electrical safety directives.
Heating and Cooling
Control type
Setpoint
Setpoint (Away)
17°C
Sensors / controls
Supply air
Setpoint (Travelling)
Internal post heater
17°C
External post heater
Post heater out limit
External post cooling
17°C
External electric preheater
External liquid coil
8°C
