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38
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WS
Series
Advanced air conditioning systems
Low pressure protection:
Low pressure compressor protection. At each compressor re-
start, the system ignores L.P entrance!! For 2 minutes.
Cooling mode:
At low pressure
failure of 5 seconds long - shuts compressor. After compressor delay (3 minutes) if L.P
closed the unite returns to normal operation. If L.P still open, re-start the compressor and
activates the fan in high speed. After 1 minute, if L.P still opens the system shuts down and
the displays show "ER5" flashing.
Heating mode:
The fan operates in LOW speed for 5
minutes and then change to desire speed. At low pressure failure of 5 seconds long - shuts
compressor. After compressor delay (3 minutes) If L.P still open, re-start the compressor and
activates the fan in desire speed. After 1 minute if L.P still open the compressor stops. Fan
stop after 20 seconds and the displays show "ER5" flashing.
High pressure protection:
High pressure compressor protection.
Cooling mode:
At H.P
failure, stop compressor after 1 second. After compressor delay (3 minutes) the unite returns
to normal operation. If failure occurs 3 times in 15 minutes, the system shut down. Signal
"ER6" appears flashing.
Heating mode:
The fan operates in LOW speed for 5 minutes and
then change to desire speed. If the fan operate in LOW or MEDUM speed and H.P failure
occurs, the speed switch to HIGH, When fan speed is HIGH and H.P contact open for 1
second, the compressor stop. After compressors delay (3 minutes) the unit re starts the
compressor. If failure occurs 3 times in 15 minutes, the system shut down. Signal "ER6"
appears flashing.
11.2 Modes of operation and uses
Setting the Temperature
The temperature may be adjusted within the range of 16ºC and 30ºC. Use temperature
setting pushbuttons (+) to increase and (-) decrease the temperature
.
Cooling Mode
In this mode the air conditioner cools, dries and filters the air in the room. The set
temperature is maintained.
Heating Mode
In this mode the air conditioner heats and filters the air in the room. The set temperature is
maintained.
Auto Cooling/Heating Mode
In this mode the air conditioner automatically selects the cooling or heating position
according to room conditions and set temperature.
Auto Ventilation Mode
In this mode the air conditioner automatically changes the speed of the fan in accordance
with the room temperature. At room temperature close to the set point the fan rotates at low
speed while speed increases when room temperature is up.
Display shows "A"
Fan Only (Ventilation) Mode
The air conditioner maintains continuous air flow, without cooling or heating. Display shows
"F".
Summary of Contents for WS Series
Page 1: ...Service Manual And Advanced air conditioning systems ...
Page 2: ......
Page 14: ... 14 WS Series Advanced air conditioning systems 6 1 Refrigeration Cycle Cooling Only ...
Page 15: ... 15 WS Series Advanced air conditioning systems 6 2 Refrigeration Cycle Heat Pump ...
Page 40: ... 40 WS Series Advanced air conditioning systems NOTES NOTES NOTES NOTES ...
Page 41: ......