Mitsubishi Electric Lossnay LGH-100RX4-E, Руководство пользователя

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22 When pre-heat output output is used, turn the SW5-6 ON.
There is no method of turning ON the pre-heat output without changing OA temperature.
The first check of the installation
(1) Make the power supply of the heater turned off.
(2) Short-circuit the pre-heater output with a lead etc.
(3) Check weather the relay contact by the side of the heater turns on.
The pre-heat output is never closed even if abnormalities, such as drawing out the OA/RA thermistor connector,
occur.
«
Check the power supply to the
Lossnay.
«
Set the Main/Sub (SW1) switch
to “Main.”
«
Check the length of the trans-
mission cable wiring.
«
Connect the transmission cable
to TM4
1 2
.
«
Change to the PZ-41SLB-E
remote controller.
1
No.
Remote controller
display does not
appear.
«
Power is not supplied to the Lossnay, or power
outside specifications is connected.
«
When using only 1 Lossnay, the Main/Sub switch
(SW1) on the Lossnay circuit board is set to “Sub.”
«
The overall wiring length of the transmission cable
is longer than specifications (longer than 500 m).
«
The remote controller is connected to TB5 (M-NET
transmission cable).
«
PZ-52SF-E is connected to the Lossnay local
remote controller.
2 Remote controller
does not operate
(Communication error
display)
«
When using multiple Lossnay units, the Main/Sub
switch (SW1) on the Lossnay circuit board of the
second or following unit is set to “Main.”
«
The overall wiring length of the transmission cable
is longer than specifications (longer than 500 m).
«
Multiple transmission cables are wired with multi
core cables.
«
Set the Main/Sub switch (SW1) of
the second and following Lossnay
units to “Sub.”
«
Check the length of the trans-
mission cable wiring.
«
For the applied transmission
cable, wire the transmission
cables away from the other
transmission cable.
3 Interlocked operation
with external device
does not occur.
«
The type of external signal does not match the
connected terminal unit (charged, uncharged, Mr.
Slim signal).
«
The type of external signal does not match the
pulse input switch (SW2-2) setting (level signal,
pulse signal).
«
The external device signal is not being input.
«
The external device and signal cable wiring is
longer than specifications
12V DC, 24V DC: Longer than limitations of
external device
Uncharged a-contact: Longer than 500 m
Mr. Slim signal: Longer than 500 m
«
The Delayed Start mode is set at the remote con-
troller (PZ-41SLB-E).
«
The ON Interlocked Operation mode or OFF
Interlocked Operation mode is set at the remote
controller (PZ-41SLB-E).
«
When using multiple Lossnay units, the external
control input signal is connected to a unit with the
“Sub” setting made.
«
Check the connection to the exter-
nal control input terminal (TM2) for
the type of external signal.
«
Check the type of external signal
and the setting of the pulse input
switch (SW2-2).
«
Check the external device.
«
Check the length of the signal
cable wiring.
«
Check the Delayed Start mode
setting at the remote controller
(PZ-41SLB-E).
«
Check the Interlocked Operation
mode setting at the remote con-
troller (PZ-41SLB-E).
«
Connect the external control
input signal to the Lossnay unit
set to “Main.”
Symptom Cause Corrective action
System checklist
1
Use this checklist when using a PZ-41SLB-E or an external device (Table 1-2-1)
—23—
Checkpoint
No.