Daikin Altherma EKHBH Series Service Manual page 82

Outdoor Unit Functional Concept
1
Detail
2
3
4
5
3.11.1 Fully Closing with Power ON
2–24
The followings are the examples of control which function in each mode by the electronic expansion
valve control.
Operation pattern
When power is turned ON
Cooling operation
Stop
Heating operation
Stop
Heating operation
(only for heat
pump model)
Control of discharge pipe thermistor
disconnection
Stop
Initialize the electronic expansion valve when turning on the power, set the opening position and
develop pressure equalizing.
: function
× : not function
Fully closed when power is turned ON
Open control when starting
(Control of target discharge pipe temperature)
Pressure equalizing control
Open control when starting
(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
Part 2 – Functional Description
ESIE06-03
× ×
×
× ×
×
× ×
× ×
×
× ×
× ×