Mitsubishi Electric LGH-15RX5 -E Instruction Manual page 77

11.5.3 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.
11.5.4 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 oper-
ation switch for the Lossnay
remote controller (PZ-52SFE)
is pressed.
"HO" flashes in remote con-
troller for Lossnay (PZ-52SF-E).
When using M-NET, the opera-
tion 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.
• 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 transmis-
sion 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 →
Lossnay doesn't run →
• 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 installa-
tion 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 nec-
essary 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 trans-
mission 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 →
Lossnay doesn't operate →
• 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 publication 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 instruc-
tions 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. not interlock.
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 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 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
Error in M-NET communication
flashes
ON Registration operation has not been performed.
Remedy
Check the signal lines
Check the power supply
Inspect the transmission wire
Check the power supply
12 or 24 VDC
Resistance: 0
2 to 6 VDC (pulse signal)
Operation signal
0 VDC
Unlimited resistance
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.
Use the controller to perform the registration.
Stop signal
C-77