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Appendix
Appendix
Interface adaptors (sold separately)
Interface adaptors include those used to convert transmissions and those used for on and off control.
Interface adaptors for transmission conversion
This unit is a centralised controller designed for use with electronic package air conditioners (PAC) and gas heat pump air conditioners (GHP)
later than type G, but you can also connect it with older models by using interface adaptors to convert communications.
There are the following limitations you should be aware of, however.
Contact the place of purchase or your servicing agent for details.
Models you can connect E series and F series GHP
Alarm display “C12” (interface adaptor batch alarm) is displayed, but no details are displayed.
Maintenance information The following information is not displayed for GHP outdoor units.
y Engine operation hours
y Oil replacement timing
y Outdoor unit operating hours
Air conditioning
distributing
Indoor unit fan speed data The cumulative operating hours by fan speed will be xed to “Mid.”. (Even if set to “Low” or
“High”, the calculation will be made for “Mid.”)
Cumulative operating hours When group control has been set on the remote controller, the cumulative operating times of
only one of these (the parent device) shall be the object of distribution calculations.
If the child devices operate with the thermostat off or stop due to warnings, these will not be
recognized.
ON hours for electric heater The cumulative ON time for electric heaters is not displayed.
Indoor unit performance xed values As these are not identied automatically, set the performance xed capacity values (kW) in the
“Edit unit settings” screen (P.143).
When doing this, when group control has been set on the remote controller, you need to set
the value of all child device performances added together.
Distribution modes Only time distribution is supported.
Items that cannot be
operated
The following operations are not possible:
y Resetting the lter sign
y Airow direction settings
y Test operation
For old models, install remote controllers before use.
Test operation When testing operation with remote controllers on old model indoor units, if you perform setting operations on this unit to the old model
unit, test operations are automatically cancelled.
Demand operations Demand operations to outdoor units are not possible.
Remote controller
prohibition
You cannot change the prohibited items in the remote controller prohibition modes (“Prbt1” to “Prbt4”). Even if you make settings in
“Local R/C Prhbt settings” in the “Settngs for communictn w A/C(3)” screen (P.185), the settings will be invalid.
Things you should know
199
Appendix
Appendix
Interface adaptors for on/off control
Using interface adaptors for on/off control enables you to connect devices (ventilation fans, room air conditioners, etc.) to turn on or off.
There are the following limitations you should be aware of, however.
Contact the place of purchase or your servicing agent for details.
Items that can be centrally
controlled
Centralised control is possible only with the following items:
y ON/OFF
y Remote controller prohibition (only prohibiting “ON/OFF”)
You can also make timer settings, but settings other than “ON/OFF” and “remote controller prohibition” will be invalid.
“Remote controller prohibition” is only for when local prohibition signal output is connected from the interface adaptor to the device.
Alarm display “C12” (interface adaptor batch alarm) is displayed, but no details are displayed. (However, only when the alarm signal input is
connected to the interface adaptor)
Air conditioning distributing Indoor unit fan speed data The cumulative operating hours by fan speed will be xed to “Mid.”. Even when the
thermostat ON signal input is connected to the interface adaptor, the cumulative operating
hours will be counted as xed to “Mid.”.
ON hours for electric heater The cumulative ON time for electric heaters is not displayed.
Indoor unit performance xed values As these are not identied automatically, set the performance xed capacity values (kW)
in the “Edit unit settings” screen (P.143).
Distribution modes Only time distribution is supported.
Note
y If a device meets the contact specications as a interface adaptor for on/off control, you can control this unit from any device, but as this
entails dangers to life, property, etc., it is strongly advised that you do not.
y After starting distribution operation, if you change the address of an indoor unit or switch the address of an indoor unit with another, for
example, distribution calculations will be inaccurate, and other problems may occur so care should be taken.
Things you should know
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