Panasonic Urban Multi MX1R Series Service Manual page 635

Interface Adaptor
<Settings of
Switches on the PC
Board Adaptor>
Note: For Combination Series
Set the SS1 cool/heat selector switch on the function unit to "outdoor." You must also set cool/heat selector
"master" or "slave" by pushbutton switch.
6.6.3 Demand / Low Noise Control
Connecting control input to the adaptor for outside control of outdoor units enables demand and low noise
control.
Demand Control
When short circuit between (1) and (C): Approx. 70% as a guideline
(Figures Indicate When short circuit between (2) and (C): Approx. 40% as a guideline
Demand Rate)
When short circuit between (3) and (C): Forced fan operation
Low Noise Control Running noise can be reduced by 2~3dB by controlling capacity of outdoor unit.
(Outdoor Unit)
<System Outline>
614
PACD011001C2
Appendix