3-51
Water cooled
operation
Air cooled
operation
Ambient temperature condition
S. PTI
✕
–10˚C < Ambient temperature
≦
43˚C
When the ambient temperature is above 43˚C or below –10˚C, the result may be
abnormal.
F. PTI
✕
–10˚C
≦
Ambient temperature
≦
43˚C
When the ambient temperature is above 43˚C or below -10˚C, the following alarm will be indicated.
J501: Out of ambient temperature specified conditon.
M. CHECK
Step
Content
Basic data record (container No., date,
P00
time, compressor integrated run-hour,
ambient temperature)
P02
Alarm check on all sensors
P04
Power conditions (voltage and frequency) check
P05
Compressor start running check
Actuating pressure check at OFF and
P06
ON of High pressure switch (HPS)
P08
Pump-down check
Solenoid valve leakage check
•Liquid solenoid valve (LSV)
•Injection solenoid valve (ISV)
P10
•Hot gas solenoid valve (HSV)
•Defrost solenoid valve (DSV)
•Discharge gas by-pass (BSV)
•Economizer solenoid valve (ESV)
P12
Supply and return air sensor (SS and RS)
accuracy check
P14
Pressure sensor (HPT and LPT)
accuracy check
P16
Evaporator fan high and low-speed
operation check
P18
Start up
P20
Economizer solenoid valve (ESV)
opening or closing check
※
1
※
2
P22
Discharge gas by-pass solenoid valve
(BSV)opening or closing check
※
2
P24
Defrost solenoid valve (DSV)
opening or closing check
P26
Standard pull-down operation
P28
Suction modulating valve (SMV) operation
check
P29
Electronic expansion valve (EV)
operation check
P30
Injection solenoid valve (ISV) opening
or closing check
※
2
P32
Hot-gas 3-way solenoid valve (HSV) and reheat
coil solenoid valve (RSV) opening or closing check
●
Automatic PTI enable conditions
N
Normal operation
UNIT ON/OFF key: on
S.PTI start
P00 through P32
Select S.PTI
within 18 seconds
Y
N
Forced termination
S.PTI termination
PTI data logging
Compressor protective
device activation
3.9.2.2 Short PTI (S.PTI)
●
Step display and content
●
S.PTI Flow chart operation
※
1 If the ambient temp is –10˚C or lower, the function check of the solenoid valve cannot be preformed
correctly, short circuit the terminals 121 and 102 on the terminal board, and check the operation of
the solenoid valve.
※
2 If the difference between ambient temperature and return air temperature is 15˚C or higher, these
steps will be skipped.
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