Supervision (Ddc) - Swegon CASA R3 Smart Installation, Commissioning And Maintenance Instructions

7.4.4 Supervision (DDC)

• DDC control can be enabled/disabled from the con-
trol panel's menu Settings/Remote control (DDC).
• Temporary temperature control can be performed
by selecting temperature decrease for the operating
modes Travelling and Away.
• Variable control occurs between the voltages 2 V
- 5 V - 8 V. The ventilation then switches variably
between operating modes Away - Home - Boost.
Otherwise, control is performed according to the
normal DDC control.
8: 0 V (GND)
7: Not used.
6: Fan speed actual value: 0-10 V DC
0 V = Not DDC control
1 V = Travelling
2 V = Away
5 V = Home
8 V = Boost
10 V = Stopped
5: Not used.
4: Fan speed control 0–10 VDC (+/- 0.5 V)
DDC not used
Travelling
Away
Home
Boosting
Stopped
3: Alarms – signal from the ventilation unit
(earthed contact)*
2: Emergency stop/fire alarm (if contact between termi-
nals 1–2 is broken, the ventilation unit will stop)*
1: 0 V (GND)
Swegon reserves the right to alter specifications.
= 0 VDC
= 1 VDC
= 2 VDC
= 5 VDC
= 8 VDC
= 10 VDC
Alarm output
max 40V, 500mA
Close = alarm
Open = no alarm
*) Connection of the alarm/emergency stop
www.swegonhomesolutions.com
R3.051016
A2
24VDC
max 500mA
A1
Delivery demarcation
25