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335
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'13 • PAC-T-197
(11) Outdoor unit failure
This is a function for determining when there is trouble with the outdoor unit during air conditioning.
The compressor is stopped if any one of the following in item 1), 2) is satisfied. Once the unit is stopped by this function, it is not
restarted.
(a)
When the input current is measured at 1 A or less for 3 continuous minutes or more.
(b)
If the outdoor unit sends a 0 rps signal to the indoor unit 3 times or more within 20 minutes of the power being turned on.
(12) Serial signal transmission error protection
(a) Purpose:
Prevents malfunction resulting from error on the indoor
↔
outdoor signals.
(b) Detail of operation:
If the compressor is operating and a serial signal cannot be received from the indoor control with
outdoor control having serial signals continues for 7 minute and 35 seconds, the compressor is
stopped.
After the compressor has been stopped, it will be restarted after the compressor start delay if a serial
signal can be received again from the indoor control.
(13) Rotor lock
If the motor for the compressor does not turn after it has been started, it is determined that a compressor lock has occurred and
the compressor is stopped.
(14) Outdoor fan motor protection
If the outdoor fan motor has operated at 75 min
-1
or under for more than 30 seconds, the compressor and fan motor are stopped.
(15) Outdoor fan control at low outdoor temperature
(a) Cooling
1) Operating conditions:
When the outdoor air temperature (TH2) is 22ºC or lower continues for 30 seconds while the
compressor command speed is other than 0 rps.
2) Detail of operation:
After the outdoor fan operates at A speed for 60 seconds; the corresponding outdoor heat exchanger
temperature shall implement the following controls.
Outdoor temperature > 10˚C
Outdoor temperature <= 10˚C
2nd speed
Outdoor fan
1st speed
¡
Value of A
a) Outdoor heat exchanger temperature =< 21ºC
After the outdoor fan speed drops (down) to 1 speed for 60 seconds; if the outdoor heat exchanger temperature is
lower than 21ºC, gradually reduce the outdoor fan speed by 1 speed. (Lower limit 1st speed)
b) 21ºC < Outdoor heat exchanger temperature =< 38ºC
After the outdoor fan speed maintains at A speed for 20 seconds; if the outdoor heat exchanger temperature is 21ºC~
38ºC, maintain outdoor fan speed.
c) Outdoor heat exchanger tempeature > 38ºC
After the outdoor fan speed rises (up) to 1 speed for 60 seconds; if the outdoor heat exchanger temperature is
higher than 38ºC, gradually increase outdoor fan speed by 1 speed. (Upper limit 3rd speed)
3) Reset conditions:
When either of the following conditions is satisfied
a) The outdoor air temperature (TH2) is 25ºC or higher.
b) The compressor command speed is 0 rps.
(b) Heating
1) Operating conditions:
When the outdoor air temperature (TH2) is 4ºC or lower continues for 30 seconds while the
compressor command speed is other than 0 rps.
2) Detail of operation:
The outdoor fan is stepped up by 2 speed step at each 20 seconds. (Upper limit 8th speed)
3) Reset conditions:
When either of the following conditions is satisfied
a) The outdoor air temperature (TH2) is 6ºC or higher.
b) The compressor command speed is 0 rps.
Summary of Contents for V Multi 100VNX
Page 98: ... 97 13 PAC T 197 Models FDT100VF1 125VF 140VF H H H H H C B A F G D G PJF000Z285 A ...
Page 101: ... 100 13 PAC T 197 Models FDEN60VF 71VF1 C2 C1 A B A B D C1 C2 C1 C2 E G F C PFA003Z817 ...
Page 116: ... 115 13 PAC T 197 b Wireless remote control RCN E1R 60 17 150 Unit mm ...
Page 291: ... 290 13 PAC T 197 261 12 PAC T 173 ー K ...
Page 590: ... 589 13 PAC T 197 3 8 SUPER LINK E BOARD SC ADNA E F ...
Page 591: ... 590 13 PAC T 197 ...
