En-10
When connected to Dry contact terminals of multiple indoor units with a connected unit,
insulate each indoor unit with relay, etc. as shown on below example.
K1
CNA02
CNA02
CNA02
K2
K3
K4
K5
K6
P
o
w
e
r s
u
p
p
ly
f
o
r r
e
la
y
Indo
or
unit
Indo
or
unit
Indo
or
unit
Input device 2
Input device 1
K1 - K6: Relay
(Device for DC Current)
P.C.B
P.C.B
P.C.B
NOTE :
When connected to multiple indoor units directly, it will cause breakdown.
Operation behavior
●
Input signal type
The input signal type can be selected.
It is switched by DIP switch on the indoor unit PCB.
Pulse
Edge
The width of pulse must be
longer than 200 msec.
DIP switch [SET2 SW2]
Input signal type
OFF (Factory setting)
Edge
ON
Pulse
●
When function setting is “Operation/Stop” mode.
[In the case of “Edge” input]
Connector
Input signal
Command
Ch1 of CNA01 or CNA02
OFF
→
ON
Operation
ON
→
OFF
Stop
[In the case of “Pulse” input]
Connector
Input signal
Command
CNA01 or CNA02
Ch1
OFF
→
ON
Operation
Ch2
OFF
→
ON
Stop
* The last command has priority.
* The indoor units within the same remote controller group operates in the same mode.
●
When function setting is “Emergency stop” mode.
[In the case of “Edge” input]
Connector
Input signal
Command
Ch1 of CNA01 or CNA02
OFF
→
ON
Emergency stop
ON
→
OFF
Normal
[In the case of “Pulse” input]
Connector
Input signal
Command
CNA01 or CNA02
Ch1
OFF
→
ON
Emergency stop
Ch2
OFF
→
ON
Normal
* All indoor units of same refrigerant system stops when Emergency stop operates.
●
When function setting is “Forced stop” mode.
[In the case of “Edge” input]
Connector
Input signal
Command
Ch1 of CNA01 or CNA02
OFF
→
ON
Forced stop
ON
→
OFF
Normal
[In the case of “Pulse” input]
Connector
Input signal
Command
CNA01 or CNA02
Ch1
OFF
→
ON
Forced stop
Ch2
OFF
→
ON
Normal
* When the forced stop is triggered, indoor unit stops and Operation/Stop operation by a
remote controller is restricted.
* When forced stop function is used with forming a remote controller group, connect the
same equipment to each indoor unit within the group.
• Selection method of functions
“Operation/Stop” mode or “Emergency stop” mode, “Forced stop” mode can be selected
with function setting of indoor unit.
●
Forced thermostat off function
[“Edge” input only]
Connector
Input signal
Command
Ch3 of CNA03 or CNA04
OFF
→
ON
Thermostat off
ON
→
OFF
Normal
5.6.2 External output
• A twisted pair cable (22AWG) should be used. Maximum length of cable is 282 ft (5m).
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• Output voltage: Hi DC12V±2V, Lo 0V.
• Permissible current: 50mA
Output select
●
When indicator etc. are connected directly
Indicator 1
Indicator 2
Indicator 3
Indicator 4
connected unit
P.C.B
CNB
01
●
When connecting with unit equipped with a power supply
CNB
01
P.C.B
Connected
device 1
Connected
device 2
Connected
device 3
Connected
device 4
connected unit
Relay (Locally purchased)
Operation behavior
* If function setting "60" is set to "00"
Connector
Output voltage
Status
CNB01
External output 1
Pins 1-2
0V
Stop
DC 12 V
Operation
External output 2
Pins 1-3
0V
Normal
DC 12 V
Error
External output 3
Pins 1-4
0V
Indoor unit fan stop
DC 12 V
Indoor unit fan operation
External output 4
Pins 1-5
0V
External heater OFF
DC 12 V
External heater ON
●
Indoor unit fan setting for external heater
Fan setting when turning ON output to the connected external heater can be set by
changing Dip switch on PC board.
Dip switch
[SET2 SW3]
Fan setting when
ON is output to the
external heater
Explanation
OFF
(Factory setting)
OFF
For the fan setting details, see the
Design & Technical Manual.
ON
ON
6. FIELD
SETTING
There are 3 methods for address setting by FIELD SETTING as follows.
Please set by either of the methods.
Each setting method is described in below (1) to (3).
(1) IU AD, REF AD SW settings: This section (6.1. Setting the address)
(2) Remote controller settings:
Refer to the wired or wireless remote controller manual
for detailed setting information. (Set IU AD, REF AD
SW to 0)
(3) Automatic address settings: Refer to the outdoor unit manual for detailed setting
information. (Set IU AD, REF AD SW to 0)
9373370420-02_IM.indb 10
9373370420-02_IM.indb 10
2017/12/20 9:49:00
2017/12/20 9:49:00
