En-11
● When function setting is “Emergency stop” mode.
Input Connector Input signal Command
Edge
Ch1 of CNA01 or
CNA02
OFF → ON Emergency stop
ON → OFF Normal
Pulse
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.
Input Connector Input signal Command
Edge
Ch1 of CNA01 or
CNA02
OFF → ON Forced stop
ON → OFF Normal
Pulse
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)
*If function setting “60” is set to “00”
Input Connector Input signal Command
Edge
Ch1 of CNA01 or
CNA02
OFF → ON Thermostat off
ON → OFF Normal
6.6.2. External output
• A twisted pair cable (22AWG) should be used. Maximum length of cable is 82 ft. (25 m).
• Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
• Output voltage: Hi DC 12 V ± 2 V, Lo 0 V.
• Permissible current: 50 mA
Output select
● When indicator etc. are connected directly
CNB
01
Indicator 1
Indicator 2
Indicator 3
Indicator 4
Connected unit
P.C .B
● 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
0 V Stop
DC 12 V Operation
External output 2
Pins 1-3
0 V Normal
DC 12 V Error
External output 3
Pins 1-4
0 V Indoor unit fan stop
DC 12 V Indoor unit fan operation
External output 4
Pins 1-5
0 V 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
6.7. Remote sensor (optional parts)
For the installation method, please refer to the INSTALLATION MANUAL of remote sen-
sor.
Connection methods
• Remove the existing connector and replace it with the remote sensor connector (ensure
that the correct connector is used).
• The original connector should be insulated to ensure that it does not come into contact
with other electrical circuitry.
• Use conduit hole when external output cable is used.
Setting for room temperature correction
When a remote sensor is connected, set the function setting of indoor unit as indicated
below.
• Function Number “30”:
Set the Setting Number to “00”. (Default)
• Function Number “31”:
Set the Setting Number to “02”.
* Refer to “7.4. Function setting” for details about Function
Number and Setting Number.
6.8. IR receiver unit (optional parts)
Connection method
For the installation method, please refer to the INSTALLATION MANUAL of IR receiver
unit.
(1) Use 9 pins for receiver unit cable.
(2) At first, connect the receiver unit cable to the controller PCB.
(3) Attach the core that comes between controller PCB and the clamp.
(4) Use conduit hole when external output cable is used.
7. FIELD SETTING
There are 3 methods for address setting by FIELD SETTING as follows.
Set by either of the methods.
Each setting method is described (1) to (3) below.
(1)
IU AD, REF AD SW settings:
This section (7.1. 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)
CAUTION
Be sure to turn OFF the power before performing the field setting.
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