Fujitsu AIRSTAGE V-II - Expansion Valve Control; Snow Falling Protection Fan Mode; Other Control

2-3-4 Snow Falling Protection Fan Mode
To accurately detect the outside air temperature, the fan is operated while the outdoor unit is stopped.
2-3-5 Other Control
02-09
(Operation contents)
The fan rotates compulsorily at the maximum speed when the outdoor temperature becomes 5 or less
when snow falling protection fan mode is set on.
The fan is rotated for 1 minute at the fan step upper limit at the interval set by PUSH SW.
1 min 1 min 1 min 1 min
Int
Int Int
Max
fan step
Time
Fan step
30
5
10
20
Interval time Int (min)
PUSH SW setting
00
01
02
03
( F2 - 23 )
Interval setting
setting (standard)
setting
setting
setting
This mode ends when the outdoor temperature becomes 7 or more or operation starts.
EEV 1
EEV 2
EEV is controlled so that the system reaches closer to the target discharge temperature that is calculated from
high and low pressure.
< Cooling mode >
< Heating mode >
0 pulses basically.
Initialization
conditions
Control range
operation stop
0 pulses
55 - 500 pulses 0 pulses
0 pulses
2-4 EXPANSION VALVE CONTROL
Cooling
Heating
Operation mode
55 - 500 pulses
Cooling
Heating
When power
turned on
When operation
stopped