Lennox VHA 30, Installation Operating & Maintenance Manual, Page: 14 / 46

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11. Child Lock function
This function is to operate Air conditioner only by Remocon.
The procedure is as the following
1st: Press the 2 buttons of the temperature control simultaneously, to raise-to lower on the Display Panel of the
product for more 3 seconds.
2nd: The buzzer sounds and then the window of Display Panel shows
L LO OC C
(LOC) mark.
3rd: To release this function, the reverse again the operating procedure could be done.
During this function is operating, any buttons of Display Panel don't work. But it is possible to operate with
Remote controller.
9. Protection of the evaporator pipe from frosting
• Compressor and outdoor fan stop when indoor pipe temperature is below -2°C and restart at the pipe temperature
is above 12°C.
10. Air Purifying Operation(CA, HA, ZA Model only)
8. Soft Dry Operation Mode
• During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 2°C, the compres-
sor OFF temperature is the setting temperature minus 1°C.
• When the room temperature rises over the compressor ON temperature, the operation mode is switched to the
Cooling mode.
• When the room temperature falls between the compressor ON temperature and OFF temperature, the opera-
tion mode is switched to the Soft Dry Operation.
• The operation diagram is shown below.
Intake Air Temp.
Indoor Fan Speed
LOW
Selecting
fan speed
Selecting
fan speed
LOW LOW LOW LOW
Compressor
OFF ON ON ON OFF OFF ON
LOW
OFF
Setting Temp.
+2
°
C
(Compressor ON)
Setting Temp.
-1
°
C
(Compresso OFF)
Operation
Cooling
Cooling
operation Dry operation
3 min. 3 min. 10 min.
maximum
7 min.
maximum
10 min.
Mode Selecting
Operating Mode
Fan Speed
Outdoor OFF
Initial Starting of
Air purifying Oper-
ation - Low at the initial
- But could be
switched to Med. Hi
OFF
- Outdoor not operating
- Fan ope Air purifying
operating
Repress Air
purifying But-
ton or ON/OFF
Button
When switched to
Air purifying opera-
tion Selecting Speed of
Main Operating Mode
ON or OFF
depend on main
operating
condition.
- Outdoor operating
- Main Ope
Air purifying operating