Mitsubishi Electric LGH-100RX5 -E, Manual

Page: 77 / 107

C-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.
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 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.
• 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.
• 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.
• 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.
Lossnay runs → Check the signal lines
Lossnay doesn’t run → Check the power supply
Operation signal Stop signal
Charged 12 or 24 VDC output device 12 or 24 VDC 0 VDC
Uncharged a-contact output device Resistance: 0 Unlimited resistance
Mr. Slim 2 to 6 VDC (pulse signal) 2 to 6 VDC (pulse signal)
2 flashes Fault on Lossnay circuit
3 flashes Fault on Damper devices
4 flashes Fault on Lossnay thermostat (OA side) Turn the power off and consult your dealer.
5 flashes Fault on Lossnay thermostat (RA side)
8 flashes Improper OA temperature (outside the range)
Unless the Remote Controller (PZ-60DR-E) or remote
On Operating controller switch (PZ-41SLB-E, etc) is used, the lamp
extinguishes (operation stops) 30 minutes later.
1 to 8
Error in M-NET communication Turn off the power and immediately contact your dealer.
flashes
ON Registration operation has not been performed. Use the controller to perform the registration.
●
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.
Lossnay operates
→
Inspect the transmission wire
Lossnay doesn’t operate → Check the power supply