Refrigerant; Symptoms That Do Not Signify Problems; Standard Operating Characteristics (Reference Data) - Mitsubishi Electric CAHV-P500YB-HPB Service Handbook

[ VIII Test Run Mode ]

[4] Refrigerant

Unit type
Refrigerant type
Refrigerant charge

[5] Symptoms that do not Signify Problems

Symptom
Fan does not stop while stopping op-
eration.
The display shown right will appear
on the unit remote controller for
about 5 minutes when the main
power source is turned on.

[6] Standard operating characteristics (Reference data)

Reference data
Space
requirements
Ambient
temperature
Temperature
Air-side heat exchanger inlet
Outlet water temperature
Pressure
LEV opening
Compressor
Fan
HWE15070
CAHV-P500YB-HPB
R407C
5.5kg × 2
Remote controller display
Extinguished
"PLEASE WAIT" ("HO")
blinking display
DB
WB
Discharge refrigerant
Suction refrigerant
Shell temperature
Outside temperature
Inlet water temperature
High pressure
Low pressure
Main circuit
Injection
Frequency
Frequency
If terminals 19 and 20 on TB5 are short-circuited,
the fan will be forced to operate even after the
compressor has stopped.
The system is under starting up.
Operate the remote controller after the blinking of
"PLEASE WAIT" ("HO") is disappeared.
°C 7
°C 6
°C 75
°C 6
°C 20
°C 1
°C 7
°C 40
°C 45
MPa 1.72
MPa 0.38
pulse 550
pulse 60
Hz 73
Hz 55
- 109 -
Cause
16
12.4
72
10
35
7
16
40
45
1.72
0.47
870
60
59
50
GB