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12.4.2 Lossnay independent trial operation
(1) Remove the control box cover.
(2) Turn the trial operation switch (SW2-1and SW2-3) "ON."
• Operation will start with the "High" setting and with Bypass ventilation operating. (This will take approximately 45 seconds
after the power is turned on.)
• On the LGH-200RX type, set both the upper and lower circuit boards the same.
(3) Turn the trial operation switch (SW2-1and SW2-3) "OFF."
(4) Install the cover in its original position on the control box.
OFF
ON
1
SW2
3
12.4.3 Trial operation within the complete system
Interlock system containing an air conditioner and/or external device
• Use the remote controller for the air conditioner or the operating switches for the external device and confirm that the air
conditioner and Lossnay are interlocked.
• If delay time has been set, check that the Lossnay operates after the delay time has passed.
If MELANS System
• Use MELANS to confirm the operation of the Lossnay.
12.4.4 If trouble occurs during trial operation
Symptom
Will not operate even when
the operation switch for the
remote controller (PZ-41SLB-
E) and/or operation switch for
the Lossnay remote controller
(PZ-52SF-E) is pressed.
"HO" flashes in remote con-
troller for Lossnay (PZ-52SF-E).
Does not operate even when the
operation switch for remote con-
troller for Lossnay (PZ-52SF-E)
or MELANS is pressed.
Air conditioner or external
device does not interlock.
Lossnay does not stop.
The inspection indicator lamp
(LED 1 Green) in the control
box flashes.
The inspection indicator lamp
(LED 2 Red ) in the control
box flashes.
When an inspection number blinks on the remote controller, follow the procedures shown in the installation and operating
manuals provided with the switch.
If the remote controller is not used, operate approximately 45 seconds after turning on the power for the Lossnay.
Power supply will be supplied to the motor for the Lossnay fan and operation will be
performed at the "High" setting.
Power supply will be supplied to the motor for the Lossnay by-pass and operation of
the damper plate will be performed.
• Check the power supply. (The specified power supply is single-phase 208-230 V to 60 Hz.)
• Check for a short circuit or disconnection in the transmission cable. (Check that the voltage between terminals in the transmis-
sion cables is 9 to 15 V DC for the PZ-41SLB-E and 20 to 30 V DC for the PZ-52SF-E.)
• Check that the there is 5 cm or more separating the transmission cable from the power supply cable and any other transmission cables.
• Run the Lossnay independently using the trial operation switch (SW2-1) and check if it runs.
Lossnay runs
→
Lossnay doesn't run
→
• Check if there are three or more remote controller connected (PZ-41SLB-E). (The maximum is two.)
• Perform the registration operation using the remote controller for the Lossnay (PZ-52SF-E) or MELANS. (Refer to the installa-
tion instructions for the remote controller for the Lossnay or MELANS.)
• Check whether or not there is a power supply unit and that the power has been turned on. (On systems with only a Lossnay, a
power supply unit is required.)
• Check if the pulse input switch (SW2-2) is off.
• Check the overall length between the air conditioner or external device and Lossnay. (Refer to technical publications or other
such documents.)
• Check the connections at the external control input terminal block (TM2).
In the case of voltage charged 12 or 24 V DC output unit: Connect to external control input terminals 1 and 2 .
In the case of uncharged a-contact output unit: Connect to external control input terminals 1 and 3.
In the case of Mr. Slim (A-control): Connect to external control input terminals 1 and 2.
• Perform the registration operation using the remote control for the air conditioner or MELANS. (Refer to the installation instruc-
tions for the remote control for the air conditioner or MELANS.)
• Check if the delay has been set.
• Check the overall length of the transmission cable between the external device and Lossnay. (Refer to technical publications or
other such documents.)
• Check if the transmission cable from the external device has come off of the external control input terminal.
Charged 12 or 24 VDC output unit
Uncharged a-contact output unit
Mr. Slim (A-control)
• Check, in the case of multiple units, whether the Main/Sub selection switch on the Lossnay unit which is connected to the external con-
trol input terminal is set on the Master setting, and check whether the Main/Sub selection switch on other Lossnay units are set to Sub.
• Check that the trial operation switch (SW2-1) is set to off.
2 flashes
Failure of Lossnay circuit
3 flashes
Failure of damper motor system
4 flashes
Failure of Lossnay (OA side) motor system
5 flashes
Failure of Lossnay (RA side) motor system
ON
In delay periodc
1 to 8
Error in M-NET communication
flashes
ON
Registration operation has not been performed.
Operation
Remedy
Check the signal cables
Check the power supply
12 or 24 V DC
Resistance: 0 W
2 to 6 V DC
Operation signal
0 V DC
Unlimited resistance W
2 to 6 V DC
Turn off the power supply and immediately contact
your dealer.
If there is no remote controller (PZ-41SLB-E), the lamp
will go out after 30 minutes (of operation) has passed.
Turn off the power and immediately contact your dealer.
Use the controller to perform the registration.
Stop signal
169
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