Mitsubishi Electric CITY MULTI PURY-P-THMU-A (-BS) Manuel D'installation page 21

1. 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 start-up, 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.
1. Rating plate information
Model P72THMU-A(-BS)
Unit combination
Refrigerant (R410A) 10.5 kg [23 LBS 2 oz]
Allowable pressure (Ps)
Net weight 235 kg [519 LBS]
Model
Unit combination P96THMU-A(-BS)
Refrigerant (R410A) 11.8 kg [26 LBS 1 oz]
Allowable pressure (Ps)
Net weight 265 kg [585 LBS]
Model
Unit combination P120THMU-A(-BS)
Refrigerant (R410A) 11.8 kg [26 LBS 1 oz]
Allowable pressure (Ps)
Net weight 265 kg [585 LBS]
Model P72YHMU-A(-BS)
Unit combination
Refrigerant (R410A) 10.5 kg [23 LBS 2 oz]
Allowable pressure (Ps)
Net weight 250 kg [552 LBS]
Model
Unit combination P96YHMU-A(-BS)
Refrigerant (R410A) 11.8 kg [26 LBS 1 oz]
Allowable pressure (Ps)
Net weight 280 kg [618 LBS]
Model
Unit combination P120YHMU-A(-BS)
Refrigerant (R410A) 11.8 kg [26 LBS 1 oz]
Allowable pressure (Ps)
Net weight 280 kg [618 LBS]
MANUFACTURER: MITSUBISHI ELECTRIC CORPORATION
AIR-CONDITIONING & REFRIGERATION SYSTEMS WORKS 5-66, TEBIRA, 6-CHOME, WAKAYAMA CITY, JAPAN
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
P96THMU-A(-BS)
- -
11.8 kg [26 LBS 1 oz]
HP: 4.15 MPa [601 psi], LP: 2.21 MPa [320 psi]
265 kg [585 LBS]
P168TSHMU-A(-BS)
P72THMU-A(-BS)
10.5 kg [23 LBS 2 oz]
HP: 4.15 MPa [601 psi], LP: 2.21 MPa [320 psi]
235 kg [519 LBS]
P216TSHMU-A(-BS)
P96THMU-A(-BS)
11.8 kg [26 LBS 1 oz]
HP: 4.15 MPa [601 psi], LP: 2.21 MPa [320 psi]
265 kg [585 LBS]
P96YHMU-A(-BS)
- -
11.8 kg [26 LBS 1 oz]
HP: 4.15 MPa [601 psi], LP: 2.21 MPa [320 psi]
280 kg [618 LBS]
P168YSHMU-A(-BS)
P72YHMU-A(-BS)
10.5 kg [23 LBS 2 oz]
HP: 4.15 MPa [601 psi], LP: 2.21 MPa [320 psi]
250 kg [552 LBS]
P216YSHMU-A(-BS)
P96YHMU-A(-BS)
11.8 kg [26 LBS 1 oz]
HP: 4.15 MPa [601 psi], LP: 2.21 MPa [320 psi]
280 kg [618 LBS]
Cause
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.
P120THMU-A(-BS)
- P72THMU-A(-BS)
11.8 kg [26 LBS 1 oz] 10.5 kg [23 LBS 2 oz]
265 kg [585 LBS] 235 kg [519 LBS]
P192TSHMU-A(-BS)
P96THMU-A(-BS) P96THMU-A(-BS)
11.8 kg [26 LBS 1 oz] 11.8 kg [26 LBS 1 oz]
265 kg [585 LBS] 265 kg [585 LBS]
P240TSHMU-A(-BS)
P120THMU-A(-BS) P120THMU-A(-BS)
11.8 kg [26 LBS 1 oz] 11.8 kg [26 LBS 1 oz]
265 kg [585 LBS] 265 kg [585 LBS]
P120YHMU-A(-BS)
- P72YHMU-A(-BS)
11.8 kg [26 LBS 1 oz] 10.5 kg [23 LBS 2 oz]
280 kg [618 LBS] 250 kg [552 LBS]
P192YSHMU-A(-BS)
P96YHMU-A(-BS) P96YHMU-A(-BS)
11.8 kg [26 LBS 1 oz] 11.8 kg [26 LBS 1 oz]
280 kg [618 LBS] 280 kg [618 LBS]
P240YSHMU-A(-BS)
P120YHMU-A(-BS) P120YHMU-A(-BS)
11.8 kg [26 LBS 1 oz] 11.8 kg [26 LBS 1 oz]
280 kg [618 LBS] 280 kg [618 LBS]
P144TSHMU-A(-BS)
P72THMU-A(-BS)
10.5 kg [23 LBS 2 oz]
235 kg [519 LBS]
P144YSHMU-A(-BS)
P72YHMU-A(-BS)
10.5 kg [23 LBS 2 oz]
250 kg [552 LBS]
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