Test Run; The Following Phenomena Do Not Represent Faults - Mitsubishi Electric City Multi PURY-EP-YJM-A Installation Manual

*3: Current sensitivity is calculated using the following formula.
V2 x Quantity V2 x Quantity
G1 = +
of Type 1 of Type 2
G1 Current sensitivity
30mA or less 30mA 0.1sec or less
100mA or less 100mA 0.1sec or less
1. Use dedicated power supplies for the outdoor unit and indoor unit. Ensure OC and OS are wired individually.
2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections.
3. The wire size is the minimum value for metal conduit wiring. If the voltage drops, use a wire that is one rank thicker in diameter.
Make sure the power-supply voltage does not drop more than 10%.
4. Specifi c wiring requirements should adhere to the wiring regulations of the region.
5. Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed fl exible cord (design 245 IEC57).
6. A switch with at least 3 mm contact separation in each pole shall be provided by the Air Conditioner installer.
Warning:
• Be sure to use specifi ed wires for connections and ensure no external force is imparted to terminal connections. If connections are not fi xed fi rmly,
heating or fi re may result.
• Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current.
Caution:
• Some installation sites may require attachment of an earth leakage breaker for the inverter. If no earth leakage breaker is installed, there is a danger of
electric shock.
• Do not use anything other than a breaker and fuse with the correct capacity. Using a fuse or wire of too large capacity may cause malfunction or fi re.
Note:
• This device is intended for the connection to a power supply system with a maximum permissible system impedance shown in the above table at the
interface point (power service box) of the user's supply.
• The user must ensure that this device is connected only to a power supply system which fulfi ls the requirement above.
If necessary, the user can ask the public power supply company for the system impedance at the interface point.
• This equipment complies with IEC 61000-3-12 provided that the short-circuit power S
the user's supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution
network operator if necessary, that the equipment is connected only to a supply with a short-circuit power S
S (*2)
SC
Model S (MVA)
SC
PURY-(E)P200YJM
1.24
PURY-P250YJM
1.44
PURY-EP250YJM
1.28
PURY-P300YJM 1.73
PURY-EP300YJM
1.55
PURY-P350YJM
2.27
PURY-EP350YJM
1.95
PURY-P400YJM
2.56
PURY-P450YJM
2.93

12. Test run

12.1. The following phenomena do not represent faults.

Phenomenon
Indoor unit does not perform cooling
(heating) operation.
The auto vane rotates and begins to blow air
horizontally.
Fan setting changes during heating.
Fan stops during heating operation.
Fan does not stop while operation has been
stopped.
No setting of fan while start SW has been
turned on.
Indoor unit remote controller shows "H0"
or "PLEASE WAIT" indicator for about fi ve
minutes when turning ON universal power
supply.
Drain pump does not stop when unit is
stopped.
Drain pump continues to operate while unit
has been stopped.
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 fl ow.
Warm air comes from an indoor unit that is
not performing a heating operation.
V2 x Quantity
+ + V3 x Wire length [km]
of Others
Indoor unit
PLFY-VBM, PMFY-VBM, PEFY-VMS, PCFY-VKM,
Type 1
PKFY-VHM, PKFY-VKM, PFFY-VKM, PFFY-VLRMM
Type 2 PEFY-VMA
Others Other indoor unit
Display of remote controller
"Cooling (heating)" fl ashes
Normal display
Normal display
Defrost display
No lighting
Heat ready
"H0" or "PLEASE WAIT" fl ashes
Light out
Normal display
Normal display
Normal display
V2
2.4
1.6
0
is greater than or equal to S
SC
greater than or equal to S
SC
Cause
When another indoor unit is performing the heating (cooling) operation, the
cooling (heating) operation is not performed.
If air has been blowing downward for 1 hour during cooling, the unit may
automatically change to horizontal blowing with the control operation of the
auto vane. During defrosting or immediately after heating start-up/shut-down,
the auto vane automatically rotates to blow air horizontally for a short period
of time.
Ultra-low speed operation is commenced at thermostat OFF.
Light air automatically changes over to set value by time or piping temperature
at thermostat ON.
The fan is set to stop during defrosting.
The fan is set to run for 1 minute after stopping to exhaust residual heat (only
in heating).
Ultra low-speed operation for 5 minutes after SW ON or until piping
temperature becomes 35°C, low speed operation for 2 minutes thereafter, and
then set notch is commenced (Hot adjust control).
The system is being started up.
Operate remote controller again after "H0" or "PLEASE WAIT" disappears.
After cooling operation stops, the unit continues to operate drain pump for
three minutes and then stops it.
Unit continues to operate drain pump if drainage is generated, even after the
unit has been stopped.
This is a switching sound of the refrigerant circuit and does not imply a
problem.
Unstable fl ow of the refrigerant emits a sound. This is temporary and does not
imply a problem.
The LEV is slightly open to prevent refrigerant, of the indoor unit that is not
performing the heating operation, from being liquefi ed. This does not imply a
problem.
Wire thickness V3
1.5mm 48
2
2.5mm 2 56
4.0mm 66
2
(*2) at the interface point between
SC
(*2).
SC
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