Electrical Wiring
CZ-CAPBC2 digital input functionality
The CZ-CAPBC2 digital inputs offer the following functionality settings.
Switch S1: Control type setting
S2
JP6
JP5
JP4
JP3
JP2
JP1
BOOT MODE
0
1
2
5
3
4
5
6
7
8
9
10
11
12
13
14
15
Notes:
1 Control type No. 10 is the factory default.
2 If digital input signals are to be used for mode change only without using the start/stop function, set switch S1 to control
type No. 9.
3 By default, CZ-CAPBC2 digital inputs are set for accepting non-voltage signals from dry contacts.
70
S1
ON
ON
D3
1 2 3 4
1
4
OFF
S5
– Off
● On
NORMAL
Input 1 (DI1)
open ► close
close ► open
Start
Indoor units stop
Fan low
when all of Input 1, 2,
3 are open
Start
Stop
Prohibit R/C
Prohibit R/C
Start/Stop
Start/Stop
Start
Stop
Prohibit R/C Start
Prohibit R/C
Start/Stop
Start < > Stop
–
Prohibit R/C
Start/Stop
Start
–
Prohibit R/C
Start/Stop
Start
–
Prohibit R/C Start
Start
–
Accept R/C
Start/Stop
Start < > Stop
–
Prohibit R/C
Start/Stop
–
–
Heat
–
Heat
Indoor units stop
when all of Input 1, 2,
Start
3 are open
–
–
–
–
–
–
–
–
Start
Stop
S3
VOLTAGE
NON VOLTAGE
S1
Control
0-140Ω
type
S4
1
2
3
0-10V
–
–
–
0
●
–
–
1
2
–
●
–
3
●
●
–
–
–
●
4
●
–
●
5
–
●
●
6
●
●
●
7
Input 2 (DI2)
open ► close
close ► open
Start
Indoor units stop
Fan medium
when all of Input 1, 2,
3 are open
Start
Stop
Accept R/C
Prohibit R/C
Start/Stop
Start/Stop
Accept R/C
Stop
Start/Stop
Prohibit R/C
Start/Stop
Start < > Stop
–
Accept R/C
Start/Stop
Start
–
Accept R/C
Start/Stop
Accept R/C
–
Start/Stop
Stop
–
Accept R/C
Start/Stop
Start < > Stop
–
Accept R/C
Start/Stop
–
–
Cool
–
Cool
Indoor units stop
when all of Input 1, 2,
Start
3 are open
–
–
–
–
–
–
–
–
–
–
+
DI3
+
DI2
+
DI1
-
COM
Control
+
type
4
1
2
AI
–
–
–
8
-
–
●
–
9
–
10
–
●
1
+
–
11
●
●
–
–
–
12
AO
–
-
●
–
13
–
–
●
14
–
●
●
15
Input 3 (DI3)
open ► close
close ► open
Start
Indoor units stop
Fan high
when all of Input 1, 2,
3 are open
Stop
–
Prohibit R/C
Start/Stop
Stop
–
Prohibit R/C
Start/Stop
Stop
–
Prohibit R/C
Start/Stop
Stop
–
Prohibit R/C
Start/Stop
Stop
–
Prohibit R/C
Start/Stop
–
–
Set thermostat
Release
OFF
thermostat OFF
–
–
Fan
–
Fan
Indoor units stop
when all of Input 1, 2,
Start
3 are open
–
–
–
–
–
–
–
–
Set thermostat
Release
OFF
thermostat OFF
AHU Kit – Installation Instructions – 09/2021
S1
3
4
–
●
–
●
–
●
–
●
●
●
●
●
●
●
●
●
Voltage of
NO contact:
static / pulses
All inputs: static
Input 1, 2: static
Input 3: pulse
Input 1, 2: static
Input 3: pulse
All inputs: pulse
Input 1, 2: static
Input 3: pulse
–
All inputs: pulse
All inputs: static
–
–
–
–
All inputs: static