Mitsubishi Electric LGH-F300RX5-E Installation Instructions Manual page 13

Trial operation (continued)
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
Power will be supplied to the motor for the Lossnay fan
and operation will be performed at the "High" setting.
SW2
1 Power will be supplied to the motor for the Lossnay by-pass
and operation of the damper plate will be performed.
(Approximately 1 minute)
4. If trouble occurs during trial operation
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.
"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.
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 remote controller.
If the remote controller is not used, operate after approximately 45 seconds of turning on the power for the Lossnay.
Operation
• Check the power supply. (The specified power supply is single-phase 208 - 230 V ~ 60 Hz)
• 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 2" (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 208 - 230 V, wire dia. AWG 14 (ø 1.6), 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 2" (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.
Charged 12 or 24 VDC output device
Uncharged a-contact output device
Mr. Slim
• 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.
2 flashes Fault on Lossnay circuit
3 flashes Fault on Damper devices
4 flashes Fault on Lossnay thermostat (OA side)
5 flashes Fault on Lossnay thermostat (RA side)
8 flashes Improper OA temperature (outside the range)
On Operating
1 to 8 flashes Error in M-NET communication
On Registration operation has not been performed. Use the controller to perform the registration.
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.
Remedy
Operation signal
12 or 24 VDC
Resistance: 0 Ω
2 to 6 VDC (pulse signal)
Turn the power off and consult your dealer.
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.
Turn off the power and immediately contact your dealer.
Stop signal
0 VDC
Unlimited resistance Ω
2 to 6 VDC (pulse signal)
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