Service manual

SiEBE12-625 Control Specification
Function and Control 87
Detail The followings are the examples of control which function in each mode by the electronic
expansion valve control.
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(R3056)
Fully closed when power is turned ON
Open control when starting
(Control of target discharge pipe temperature)
Control when the operating room is changed
(Control of target discharge pipe temperature)
Pressure equalizing control
Open control when starting
(Control of target discharge pipe temperature)
Control when the operating room is changed
(Control of target discharge pipe temperature)
(Defrost control FD=1)
(only for heat pump model)
Pressure equalizing control
Open control when starting
Continue
Pressure equalizing control
Cooling, 1 room operation
Cooling, 2 rooms operation
to
Cooling, 4 rooms operation
Stop
Heating, 1 room operation
Heating, 2 rooms operation
to
Heating, 4 rooms operation
Stop
Heating operation
Control of discharge pipe
thermistor disconnection
Stop
(only for heat
pump model)
(only for heat
pump model)
(only for heat
pump model)
Operation patter
n
When power is turned ON
O : function
X : not function
Gas pipe isothermal control SC control (only for heat pump model)
Control when frequency changed Control for abnormally high discharge pipe temperature Oil recovery control Indoor freeze-up protection control Liquid pipe temperature control Liquid pipe temperature control for stopped rooms Dew prevention control for indoor rotor
All
rooms
All
rooms
All
rooms
All
rooms
All
rooms
All
rooms
All
rooms
All
rooms
All
rooms