-
86
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3) Compressor protective start
3
When the following conditions are satisfied, compressor start III is implemented.
a) Less than 6 hours have passed since the power was turned ON, and this is the 1st time the compressor has been started
since the power was turned ON.
1
The compressor begins synchronous operation 5 seconds after the thermostat ON conditions have been established.
2
30 seconds after the compressor started, the compressor speed is increased by 2 rps/sec. from the lower limit
value to the upper limit value.
3
After item
2
is terminated, the compressor’s speed is retained at the lower limit value for 3 minutes after the
compressor starts.
4
After item
3
is terminated, if the compressor’s speed becomes greater than the lower limit speed, the compressor’s
speed is increased by 6 rps/2 minutes for 11 minutes after the compressor is started.
Model
Item
FDCVA151, 201
FDCVA251
Lower limit value
30
40
Upper limit value
64
64
Units: rps
Cooling
Heating
Compressor speed (rps)
Outdoor unit fan tap
Compressor speed (rps)
Outdoor unit fan tap
less than 46
4th speed (520 rpm)
less than 62
4th speed (520 rpm)
46 to less than 66
5th speed (570 rpm)
62 to less than 82
5th speed (570 rpm)
66 to less than 80
6th speed (685 rpm)
82 to less than 92
6th speed (685 rpm)
80 or more
7th speed (740 rpm)
92 or more
7th speed (740 rpm)
Initial start
remotecontrol
unit ON,
Trouble solved
Protective start II
Protective start I
Protective start II
First time since
the compressor
was turned ON
2nd or subsequent
time since the
compressor was
turned ON
Less than 6 hours
since the power was
turned ON
6 hours or longer
since the power was
turned ON
Less than 6 hours
since stop
6 hours or longer
since stop
In accordance with the following [conditions]
Protective start II
Protective start I
Protective start II
Protective start II
Protective start I
Protective start II
Thermostat ON start
When the thermostat
is OFF, there is an
operating mode change.
When the thermostat
is OFF, there is no
operating mode change.
[Conditions]
The discharge pipe temperature (Tho-D) and outdoor air temperature (Tho-A) are detected.
• If the discharge pipe temperature (Tho-D) minus the outdoor air temperature (Tho-A) is >
= 15 degrees, protective start II is
implemented.
• If the discharge pipe temperature (Tho-D) minus the outdoor air temperature (Tho-A) is < 15 degrees, protective start III is
implemented.
(c)
Compressor protective control according to operating speed (FDCVA 151~251 models only)
1) Compressor protection during high speed operation
When the compressor is operated at speeds exceeding 100 rps for 30 minutes, the upper limit for the compressor’s speed
is made 100 rps for 3 minutes.
2) Compressor protection during low speed operation
When the compressor is operated at speeds below 26 rps for 60 minutes, the lower limit for the compressor’s speed is
made 30 rps for 15 seconds.
(d)
Outdoor fan control
⽧
FDCVA151~ 251 models
(i)
Outdoor fan tap and fan motor control contents during control
FDCVA151, 201
Compressor soft start control
