Various Control Methods Using The Signal Input/Output Connector On Outdoor Unit - Mitsubishi Electric PURY-M200YNW-A1 Service Handbook

[2-4 M-NET Address Settings ]
2-4-7 Various Control Methods Using the Signal Input/Output Connector on Outdoor
Unit
(1) Various connection options
Type
Input Prohibiting cooling/heating operation (thermo OFF) by an external
input to the outdoor unit.
*It can be used as the DEMAND control device for each system.
Performs a low level noise operation of the outdoor unit by an ex-
ternal input to the outdoor unit.
* It can be used as the silent operation device for each refrigerant
system.
Forces the outdoor unit to perform a fan operation by receiving sig-
nals from the snow sensor.
The operation mode of the unit can be changed from normal cool-
ing operation (performance priority) to energy-saving cooling mode
by an external signal input.
Out- How to extract signals from the outdoor unit
put *It can be used as an operation status display device.
*It can be used for an interlock operation with external devices.
*1 For details, refer to section (2) Example of wiring connection.
*2 For details, refer to section (2) Example of wiring connection and other relevant sections in the manual. [2-5 Demand Control
Overview]
*3 Low-noise mode is valid when Dip SW6-8 on the outdoor unit is set to OFF. When DIP SW6-8 is set to ON, 4 levels of on-
DEMAND are possible, using different configurations of low-noise mode input and DEMAND input settings.
*4. By setting Dip SW6-7, the Low-noise mode can be switched between the Capacity priority mode and the Low-noise priority
mode.
When SW6-7 is set to ON: The low-noise mode always remains effective.
When SW6-7 is set to OFF: The low noise mode is cancelled when certain outside temperature or pressure criteria are met,
and the unit goes into normal operation (capacity priority mode).
Low-noise mode is effective.
Cooling
TH7<30°C[86°F] and
2
63HS1<32kg/cm
*5 If the formula TH7>5 holds true, the fan will not go into operation when the contact receives signal input.
*6 When using a base heater, change the setting using SW4. When using a base heater, error output will not be available.
BS_02_L
Usage
*5
Heating
TH7>3°C[37°F] and
2
63LS>4.6kg/cm
Function
DEMAND (level)
Low-noise mode
*3*4
(level)
Snow sensor signal
input (level)
Energy-saving
mode
Operation status of
the compressor
*6
Error status
Capacity priority mode becomes effective.
Cooling
TH7>35°C[95°F] or
2
63HS1>35kg/cm
Terminal
to be Option
*1
used
*2
CN3D Adapter for
external input
(PAC-
SC36NA-E)
CN3S
CN3K
CN51 Adapter for
*5
external out-
put
(PAC-
SC37SA-E)
Heating
TH7<0°C[32°F] or
2
63LS<3.9kg/cm
chapter 2 -
7