Final Installation Checks - Carrier XPOWER 38VYX110 Installation Manual

38VYX110/38VYX130

Final installation checks

Check and Test Operation
For R410A, use the leak detector exclusively manufactured for
HFC refrigerant (R410A, R134a, etc.).
• The conventional leak detector for HCFC refrigerant (R22,
etc.) cannot be used because its sensitivity for HFC refrigerant
lowers to approx. 1/40.
• Pressure of R410A is approx. 1.6 times higher than that of
R22.
If installation work is incompletely finished, a gas leakage may
occur when pressure rises during operation.
Therefore, be sure to test the piping connections for leakage.
LED indication and code checking
LED indication
Red
D800 O:
Yellow
D801 O:
Yellow
D802 O:
D803 O: Yellow
: Flashing
: Off
: On
Cycle control
P.C. board
LED indication
D800 D801 D802 D803
• Check gas leakage at the flare nut connections, valve stem
cap connections and service port cap fittings with a leak
detector or soap water.
Useful Functions
Self-Diagnosis by LED Indication
Troubles of the outdoor unit can be diagnosed by LED indica-
tions on the cycle control P.C. board of the outdoor unit. Utilize
them for various checks.
For the check by remote controller of the indoor unit, refer to the
Installation Manual of the outdoor unit.
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
G-Tr short-circuit protection
Detect circuit error
Current sensor error
Comp. lock error
Comp. break down
E N G L I S H
Cause
(Normal stop)
GB - 11