System Test; Outdoor Unit; Indoor Unit - Carrier 38XPS Manual De Instrucciones

System test

Outdoor unit

Troubles of the outdoor unit can be diagnosed by LED
indications on the cycle control P.C. board of the outdoor
unit. Utilize them for various checks.
LED indication and code checking
LED indication
D800




D800 O: Red

D801 O: Yellow


D802 O: Yellow

D803 O: Yellow

: Flashing

: Off

: On






Indoor unit

• Perform the operating test after the units have been
installed in position and the gas leak test has been
completed.
• Check all electrical connections (instructions and
wiring diagram).
• Insert the batteries into the remote control and leave it
OFF.
• Energise the system, turning the power supply ON.
Refer to the remote control manual for buttons and
display references.
• Press the [2] and [7] buttons of the infrared remote
control and hold them pressed for more than 5 secon-
ds. The display will be cleared, [S] will display the icon
"Src" (service test).
When test mode is selected, the unit operates as descri-
bed below:
• The green LED and the yellow LED blink every 2
seconds.
• The indoor fan operates at low speed.
• The louver operates according to "Auto heat" or "Auto
cool" based on operating mode.
• The system works in Cool Mode at fixed compressor
Cycle control P.C. board
LED indication
D801 D802 D803
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Before a check, confirm each bit of the DIP switch is set
to OFF position.
Heat exchanger sensor (TE) error

Suction sensor (TS) error

Hot gas discharge sensor (TD) error

High-pressure protection error

Outdoor air temperature sensor error (TO)

Outdoor motorised fan error DC

Communication error between IPDU (Abnormal stop)

High-pressure release operation

Discharge temp. error: hot gas is too high

EEPROM error

Communication error between IPDU (No abnormal stop)

G-Tr short-circuit protection

Detect circuit error

Current sensor error

Comp. lock error

Comp. break down

frequency for 3 minutes.
• The system stops for 3 minutes.
• The system works in Heat Mode with fixed compressor
frequency for 3 minutes or until the indoor coil tempe-
rature is greater than 40°C.
During the cool mode and heat mode check the fol-
lowing conditions:
1. Difference between indoor ambient temperature
and indoor unit air discharge temperature must be
greater than 3°C.
2. Indoor fan must operate at low speed.
3. Louver must be in auto heat or cool louver based on
operating mode.
4. No fault code must be signalled by the system.
If one of the above conditions is not positive, please
check the correct installation of the system.
After test has been completed, press button on the
remote control to leave the test menu.
Note: When 30 minutes have elapsed and no buttons
have been pressed, the remote control will automatically
exit the test menu and resume its normal operation.
Cause
38XPS - 38XP- 6