Operation; Operating Conditions - Carrier 42QTD009DS Owner's Manual

1. READ BEFORE OPERATING
DISPLAY
Function indicators on indoor unit display panel(Depending on model)
Operation lamp
Illuminate during operation
Infrared signal receiver
Receive the signal from remote controller
Timer lamp
Illuminate during TIMER operation
Operation lamp
Illuminate during operation
Manual button
This switch is used for after-sales
service purpose only,the user
should not push it.
Timer lamp
Illuminate during TIMER operation
NOTE
All the pictures in this manual are for explanation purpose only. They may be slightly different from the
air conditioner you purchased (Model dependent).The actual shape shall prevail.
A guide on using the remote controller (or wired controller) is included in this literature packaged.
2. OPEATION
2.1 OPEATING CONDITIONS
Opeating Conditions
Cooling Operation
Heating Operation
Note: DB - Dry Bulb
Optimum performance will be achieved within these operating temperatures.
When the unit operates above or below these conditions for a long time, system diagnostics may
detect a malfunction and the unit will not operate properly.
Room relative humidity - less than 80%. If the air conditioner operates outside this range,the
surface of the air conditioner may attract condensation.
FOR OUTDOOR UNITS WITH AUXILIARY ELECTRIC HEATER：When outside temperature is
below 0°C,we strongly recommend keeping the unit plugged in at all time to ensure smooth ongo-
ing performance.
GB-5 7
OPERATION TIMER
Operation lamp
Illuminate during operation
Manual button
This switch is used
for after-sales
Timer lamp
service purpose
only,the user should
Illuminate during
not push it.
TIMER operation
Upper limit
Lower limit
Upper limit
Lower limit
Manual button
This switch is used for after-sales
service purpose only,the user
MANUAL
should not push it.
DEF./FAN lamp
OPERATION TIMER DEF./FAN ALARM
Illuminate during DEFROST

operation

Alarm lamp
Flash when unit in failure status
Temperature indicator
Indicate the room temperature
DEF./FAN lamp
Illuminate during DEFROST
operation
DEF./FAN ALARM
Infrared signal receiver
Receive the signal from remote
controller
Alarm lamp
Flash when unit in failure status
Temperature
Temperature indicator
Indicate the room temperature
Alarm lamp
Flash when unit in failure status
DEF./FAN lamp
Illuminate during DEFROST
operation
Indoor
32°C DB
18°C DB
27°C DB
0°C DB
Outdoor
46°C DB
-10°C DB
24°C DB
-15°C DB