Mitsubishi Electric Lossnay LGH-50RVS-E Handbook page 20

No. Problem
13 Actual fan speed
of the Lossnay unit
differs from the fan
speed set with the
remote controller.
14 The Night-purge
operation cannot
be stopped with
PZ-62DR-E.
15 Even though the
Night-purge is set,
Lossnay does not
perform the Night-
purge operation.
16 The Night-purge
operation stops in
halfway through.
17 The Lossnay unit
does not operate
with the MELCloud
application.
(When the Wi-Fi
interface is used)
Factor
The signal is input to the fan
speed input (CN17).
The signal (0 to 10 V DC) is
input to the fan speed switch-
ing input (CN26 [4] [5]).
Function setting (No. 8) of
PZ-62DR-E "Max. fan speed
setting during the first 30 min-
utes" is enabled.
The indoor negative pressure
setting or the indoor positive
pressure setting is set.
Usual ON/OFF button opera-
tion cannot stop the Night-
purge operation.
Conditions of the Night-purge
are not satisfied.
The Night-purge schedule is
not set.
The operating condition
became outside the Night-
purge conditions.
The Lossnay remote controller
or the system controller was
operated to start or stop the
operation of the Lossnay unit.
A controller other than
PZ-62DR-E or a controller that
is not supporting Night-purge is
operated to change the ventila-
tion mode.
The connection cable for the
Wi-Fi interface is too close to
the power supply cable or the
other communication cables.
The system configuration is
not appropriate.
If the above does not solve the
problem
Check the fan speed input (CN17).
(See the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.)
Check the fan speed switching input (CN26 [4] [5]).
(See the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.)
Lossnay operates at maximum fan speed for 30
minutes when operation starts.
While this function is working, the icon "
selected fan speed are displayed on the screen of
PZ-62DR-E.
(See the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.)
Check the function selection switches (SW2-4 and
SW2-5) on the circuit board or the function settings
(No. 6 and 7) of PZ-62DR-E.
(See the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.)
Press the ON/OFF button once to display the
operation screen, and then press the ON/OFF but-
ton again.
When the Night-purge conditions such as the
indoor/outdoor temperature are not satisfied,
Lossnay does not perform the Night-purge
operation.
For details, see the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.
Check the setting of PZ-62DR-E or the system con-
troller that supports Night-purge operation.
For details, see the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.
When the operating condition becomes outside the
Night-purge conditions, the Night-purge operation
ends.
For details, see the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.
When the start or stop operation is performed dur-
ing the Night-purge operation, the Night-purge
operation ends.
When a controller other than those supporting
Night-purge is operated to change the ventilation
mode, the system performs the normal ventilating
operation. (See the Lossnay Operating/Installation
Instructions or PZ-62DR-E Instruction Book.)
Wire the connection cable for the Wi-Fi interface at
least 5 cm away from the power supply cable or the
other communication cables.
Refer to the notes for the system configuration, for
example, on leaflets supplied with the Lossnay unit.
See Fig. 6-1 Check of Wi-Fi interface (page 22).
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Corrective action
" and