Test Run/Typical Unit Operation; Rating Plate Information - Mitsubishi Electric CITY MULTI PUHY-HP-TJMU-A Instruction Manual

12. Test run/Typical unit operation

The events listed in the table below are normal occurrences and do not represent operation problems.
Events
A specific indoor unit is not performing the
cooling or heating operation.
Auto vane automatically switches air flow
direction.
Fan speed automatically changes during
heating operation.
Fan stops during heating operation.
Fan does not stop even if unit is not
operating.
At initial stat in heating operation, fan cannot
be manually set.
Indoor unit remote controller displays "H0"
or "PLEASE WAIT" for about 5 minutes after
turning on the universal power supply.
Drain pump continues to operate even after
the unit has been turned off.
Indoor unit emits noise when switching from
heating to cooling and vice versa.
Immediately after startup, the indoor unit
emits the sound of the refrigerant flow.
Warm air is omitted from an indoor unit that is
not performing the heating operation.

13. Rating plate information

Model
Unit combination
Refrigerant (R410A) 9.0 kg [19 LBS 13 oz]
Allowable pressure (Ps)
Net weight 225 kg [497 LBS]
Display on remote controller
"Cooling" or "heating" flashes
Normal display
Normal display
Defrost display
No display
Heat ready
"H0" or "PLEASE WAIT"
flashes
No display
Normal display
Normal display
Normal display
P72 P96
– –
11.8 kg [26 LBS 1 oz]
265 kg [585 LBS]
Because another indoor unit is performing the heating or cooling operation, the
cooling or heating operation for the indoor unit in question is not operating.
The auto vane may switch over to horizontal air flow operation from vertical air
flow operation in cooling mode if the vertical air flow operation has been running
for 1 hour. At defrost in heating mode or immediately after heating start-up/
shutdown, the auto vane automatically switches to horizontal air flow for a short
time.
Unit fan operates in ultra-low speed when thermostat is turned off; automatically
changes over to set value via timer or refrigerant temperature when thermostat is
turned off.
Fan does not operate when unit is in defrost mode.
When in heating mode, fan still runs for 1 minute after unit stops to exhaust any
residual heat.
Fan automatically runs in ultra-low speed for 5 minutes after system is turned
on, or until refrigerant temperatures rises to 35°C [95°F], and runs in low-speed
operation for 2 minutes thereafter until set temperature is reached.
System is performing the initial operating sequence. Remote controller will be
operable again after "H0" or "PLEASE WAIT" stops flashing and disappears.
After turning off the cooling operation, unit continues to operate the drain pump
for 3 minutes, then shuts it off.
Unit also continues to operate drain pump if condensate has been generated.
This is a normal sound of the refrigerant circuit operating properly.
Unstable flow of the refrigerant emits a sound. This is temporary and does not
imply a problem.
The LEV is slightly open for preventing any refrigerant, inside of the indoor unit
that is not performing the heating operation, from being liquefied. This does not
imply a problem.
P144
P72 P72
9.0 kg [19 LBS 13 oz] 9.0 kg [19 LBS 13 oz]
HP: 4.15 MPa [601 psi], LP: 2.21 MPa [320 psi]
225 kg [497 LBS] 225 kg [497 LBS]
Cause
P192
P96 P96
11.8 kg [26 LBS 1 oz] 11.8 kg [26 LBS 1 oz]
265 kg [585 LBS] 265 kg [585 LBS]
19