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5
Connecting Optional parts
(1) Program timer
• When connecting a program timer connect a 5-core cable to connector
CN2 (timer connector) on the upper case (a 5-core cable is supplied with
the program timer).
• Cut out the thin-wall portion to take the cable.
• When fitting directly onto the wall, fit the system remote controller on the
left of the program timer to facilitate wiring. If you anticipate installing more
program timers, leave the appropriate space to the left of the remote con-
troller. See the program timer installation manual for installation details.
(2) Emergency stop input
• In case of an emergency, the entire air conditioning system and all controller operations can be stopped using the
CN2 (timer connector) connected to the program timer. This function is only enabled when the this unit is in master
settings mode. Please do not connect the emergency stop input during slave settings mode. (The CN2 links to the
program timer connector, thus it can be connected to either the program timer or the emergency stop input.)
• When using the emergency stop input, use the cable (Emergency stop input cable) which is included with the unit.
• Connecting the CN2 to the emergency stop input is the same as attaching it to the program timer. See (1) Program
timer above.
• Initial settings are necessary when using the emergency stop input. Please refer to 7-3 "Emergency stop mode
settings" in the instruction book.
• External Input Specifications
1 Input signal (Level signal)
Connection ON
Connection OFF
Operating
2 Suggested circuit example
CN2
1
2
3
4
5
Main unit
NOTE: Please keep LVD. LVD;Low Voltage Directive (EC Directive of Europe) Apply some countermeasure
for wiring and relay not to be touched from outside.
1 Wiring should be covered by the insulation tube.
2 Use relay with EU regulation.
• No-voltage connectors and extension cables should be arranged on-site.
No-voltage connector specifications: Use a miniature array for signal switching (smallest suitable load: DC5V -
1 mA).
• Do not use a connector cable over 10 m long. (use 0.3 mm
• Always connect the emergency stop input with the power to the main unit turned off.
6
Initial Settings
• Initial settings is necessary before test run. Consult the user's manual for details of initial settings.
7
Test Run
• Please perform a trial run of each air conditioning unit with the local remote controller.
Emergency stop
Maximum distance 10 m
Operating
X1
X1
Emergency
stop
2
or larger wires)
Connector CN2
Thin-wall portion
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