Swegon CASA R15H Smart, Installation, Commissioning And Maintenance Instruction

13

R9-H | R15-H

 Smart

All rights to changes reserved.

2020-11-12

4.2 Switch inputs (DI)

Unit operating modes and functions can be controlled 
with switch (digital) inputs. All inputs are configurable to 
any operation, and input polarity (NC/NO) can be select-
ed. The unit has two inputs (IO1 and IO2). SEC/SEM* 
modules has three inputs more (IO3, IO4 and IO5).  

Installation

Install switch devices to selected inputs (IO1-IO5) and 
ground.

Settings

IO settings can be changed in 

Settings

/

(1234)/IO controls 

menu. Configure input type to 

switch input

. Select ac-

tive state according to application. Closed selection will 
active function when input is connected to ground (NO).

Operations

Select required switch function:

1.  Emergency stop 

Emergency stop when input active.

2.  Stop 

Unit stopped when input active.

3.  Fireplace 

Fireplace function activated by input pulse, function 
time defined in Smart settings.

4.  Hood 

Cooker hood function active when input active.

5.  Central vacuum (CVC) 

Central vacuum cleaner function active when input 
active.

6.  Boost force 

Boost mode active when input active, overrides 
Away mode.

7.  Away 

Away mode active when input active.

8.  Boost  

Boost mode active when input active.

9.  Modbus (not priority) 

Input status can be read from Modbus.

10. Relay control (not priority) 

Input status can control relay output.

11. Emergency stop resettable 

Emergency stop activation. Emergency stop is reset 
from user panel.

12. External alarm. 

Alarm indication for external devices.

*) Accessory  

**) Instructions are supplied with accessory

4.3 Voltage inputs (AI)

Unit operating modes can be controlled with analog 
voltage (0...10V) and different sensors can be connected 
to voltage inputs. The unit has two inputs (IO1 and IO2). 
SEC/SEM* modules has three inputs more (IO3, IO4 and 
IO5).  

Installation

Install control or sensor cable to selected inputs (IO1-IO5) 
and ground.

Settings

IO settings can be changed in 

Settings

/

(1234)/IO controls 

menu. Configure input type to 

voltage input

.

Operations

Select required analog input function:

1.  Operating mode 

Operating mode control 0...10 VDC (+/- 0.5 V) 
 

0 V = Control disabled 

1 V = Travelling 

2 V = Away 

5 V = Home 

8 V = Boost 

10 V = Stopped

2.  Operating mode, stepless 

Operating mode control 0...10 VDC (+/- 0.5 V) 
 

0 V = Control disabled 

1 V = Travelling 

2 V = Away 

Stepless control between Away and Home 

5 V = Home 

Stepless control between Home and Boost 

8 V = Boost 

10 V = Stopped

3.  Modbus AI 

Analog voltage can be read from Modbus.

4.  PA supply air**
5.  PA extract air**
6.  l/s (supply air)**
7.  l/s (extract air)**
8.  RH AI**
9.  CO

2

 AI**

10. VOC AI**