Si30-408 System Basic Configuration
Introduction 13
3.1.3 Type C
z RX(Y)(Q) ~ M
Outdoor unit
Outdoor unit
Cooling Mode
Outdoor unit
R410A or R22
R410A or R22
R410A or R22
Three pieces of piping for liquid, gas, and oil equalizer
Oil equalizer is installed only when outdoor VRV system is connected.
Cooling Mode
Normal motorized valve
(SH) control
Normal motorized valve (SH) control
Master
Slave
Slave
• Controls operation mode by using
four way valve
• Changing of outdoor heat
exchanger to condenser or
evaporator
• Selection for cooling / heating is possible only by master
remote controller (not displaying "selection under control")
which has been set.
• Slave remote controllers have following selection function only.
(1) Cooling, dry and fan only at Master unit cooling
(2) Heating and fan only at Master unit heating
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