Unit Warning Lights And Controls; Periodical Checks - Carrier 42 VKG Owner's Manual

42 VKG

Unit warning lights and controls

P Q R
N Signal receiver from remote controller.
P RED indicator:
When lit, one of the equipment protections is in operation.
Q YELLOW indicator:
timer on, when lit.
R GREEN indicator:
unit ON - unit OFF when not lit.
S Operation switch:
Three position switch for "A" remote control, "M" manual, "T"
"test" operation.
"A" Remote: switch position for unit standard operation.
"M" manual: with the switch in this position unit will keep the
room temperature at 23°C at the following conditions:
• fan speed: medium.
• Timer mode: disabled
"Test" position: this position should only be used by the
installer or by service personnel.
During "test" the unit will run in the cooling mode for 30
minutes.
This can be switched off by pushing any button of the remote
controller.
GB - 6
S
N
T = Test
M = Manual
A = Remote control
Notes:
• When indicator R flashes, there is a unit malfunction.
• When indicator Q flashes, the power supply has been turned off;
this indicator is lit only when the timer mode has been activated.
• When indicator P is lit, some unit protection has been tripped.
• Table I shows protection devices included in the unit.
An activated protection device is not a sign of unit or system
malfunctioning.
After a certain time (differs for each protection) the air conditioner
will automatically return to normal operation.
Table II: Periodical checks
Indoor unit
Clean air filter
Clean drain pipe
Change controller batteries
Outdoor unit
Clean outdoor coil from outside
Clean outdoor coil from inside
Blow air over electric parts
Check electric connections tightening
Clean fan wheel
Check fan tightening
Clean drain pan
For correct maintenance of the air conditioner, contact an
authorized service centre.