13
English
Symptom
Will not operate even when the
operation switch for the remote
controller (PZ-60DR-E, PZ-41SLB-E)
and/or operation switch for the
Lossnay remote controller (PZ-52SF-
E) is pressed.
Remedy
• Check the power supply. (The specified power supply is single-phase 220-240V ~ 50Hz.)
• Check for a short circuit or disconnection in the transmission cable. (Check that the voltage between terminals in the
transmission cables is 9 to 15 VDC for the PZ-60DR-E or PZ-41SLB-E and 20 to 30 VDC 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
→
Check the signal lines
Lossnay doesn’t run
→
Check the power supply
• Check if there are three or more remote controller connected (PZ-60DR-E or 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
installation instructions for the remote controller for the Lossnay or MELANS.)
• Check the power supply. (Specified power supply: single-phase 220-240V, wire dia. ø1.6, switch capacity
• Check if the power supply unit is connected or not, and if the power is supplied or not (For a system with Lossnay only, it is necessary to install the power supply unit.)
• Check the transmission wire for short-circuit or broken wire (Check if DC 20 - 30 V is detected between the terminals of transmission wire).
• Check if a clearance of 5 cm is secured between the transmission wire and the power cable and other transmission wires.
• Run Lossnay independently to see if it operates properly or not.
Lossnay operates
→
Inspect the transmission wire
Lossnay doesn’t operate
→
Check the power supply
• 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. (Can be set from PZ-60DR-E)
• Check the overall cable length between the indoor unit 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 VDC output device: Connect to external control input terminals
1
and
2
.
In the case of uncharged a-contact output device: Connect to external control input terminals
1
and
3
.
In the case of Mr. Slim (A control or K 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
instructions for the remote controller for the indoor unit 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.
• Check, in the case of multiple units, whether the Main/Sub selection switch on the Lossnay unit which is connected to
the external control 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.
Charged 12 or 24 VDC output device
Uncharged a-contact output device
Mr. Slim
Stop signal
0 VDC
Unlimited resistance
Ω
2 to 6 VDC (pulse signal)
Operation signal
12 or 24 VDC
Resistance: 0
Ω
2 to 6 VDC (pulse signal)
2 flashes
3 flashes
4 flashes
5 flashes
8 flashes
On
Turn the power off and consult your dealer.
Fault on Lossnay circuit
Fault on Damper devices
Fault on Lossnay thermostat (OA side)
Fault on Lossnay thermostat (RA side)
Improper OA temperature (outside the range)
Operating
Unless the Remote Controller (PZ-60DR-E) or remote
controller switch (PZ-41SLB-E, etc) is used, the lamp
extinguishes (operation stops) 30 minutes later.
“HO” flashes in remote controller for
Lossnay (PZ-52SF-E).
When using M-NET, the operation
switch of Remote Controller (PZ-
60DR-E), Lossnay remote
controller (PZ-52SF-E) or
MELANS is dead.
Does not operate even when the
operation switch for remote
controller for Lossnay (PZ-52SF-E)
or MELANS is pressed.
Indoor unit or external device does
not interlock.
Lossnay does not stop.
The inspection indicator lamp (LED
1 Green) in the control box flashes.
Trial operation (continued)
4. If trouble occurs during trial operation
■
When an inspection number blinks on the remote controller, follow the procedures shown in the installation and operating manuals
provided with the remote controller.
■
If the remote controller is not used, operate after approximately 45 seconds of turning on the power for the Lossnay.
3. Complete system trial operation
■
Interlock system containing an indoor unit and/or external device
•
Use the remote controller for the indoor unit or the operating switches
for the external device and confirm that the indoor unit 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.
The inspection indicator lamp (LED
2 Red ) in the control box flashes.
1 to 8
flashes
On
Turn off the power and immediately contact your
dealer.
Use the controller to perform the registration.
Error in M-NET communication
Registration operation has not been performed.
Operation
Power will be supplied to the motor for the Lossnay fan and
operation will be performed at the “High” setting. Power will be
supplied to the motor for the Lossnay by-pass and operation of
the damper plate will be performed. (Approximately 1 minute)
2. Stand-alone Lossnay trial operation
(1) Supply power to the Lossnay unit.
(2) Turn the trial operation switch (SW2-1) “On.”
•
Operation will start with the “High” setting and with Bypass
ventilation operating. (This will take approximately 1 minute
after the power is turned on.)
(3) Confirm that the Bypass damper plate in the Lossnay unit is operated.
(4) Turn the trial operation switch (SW2-1) “Off.”
OFF
ON
1
SW2
