Installation Manual

Eng-30
7. Trial operation (continued)
4. If trouble occurs during trial operation
Symptom Remedy
Lossnay does not operate even
when the operation switch of the
remote controller (PZ-62DR-E) is
pressed.
• Check the power supply. (The specied 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 10 to 13 VDC for the PZ-62DR-E.)
• Check that a clearance of 2” (5 cm) is provided between the transmission cable and the power supply
cable and other transmission cables.
•
Operate Lossnay independently using the trial operation switch (SW2-1) to see if it operates properly or not.
Lossnay operates Check the signal lines
Lossnay doesn’t operate
Check the power supply
• Check if there are three or more remote controller connected. (The maximum is two.)
When M-NET is used, the Lossnay
does not operate by M-NET
system controller.
• Check the power supply. (Specied power supply: single-phase 208-230 V 60 Hz, cable diameter,
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 cable for short-circuit or broken wire (Check if 20 - 30 VDC is detected between
the terminals of transmission cable).
• Check that a clearance of 2” (5 cm) is provided between the transmission cable and the power supply
cable and other transmission cables.
• Operate Lossnay independently to see if it operates properly or not.
Lossnay operates Inspect the transmission cable
Lossnay doesn’t operate
Check the power supply
• Check Lossnay registration condition in the system remote controller.
Air conditioner indoor unit or
external device does not interlock.
• Check if the pulse input switch (SW2-2) is o󰀨. (Can be set from PZ-62DR-E)
• Check the overall cable length between the indoor unit or external device and Lossnay. (Refer to
technical manuals 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 Volt-free contact output device: Connect to external control input terminals
Y
and
Z
.
In the case of Mr. Slim with Slim-Lossnay connection cable: Connect to external control input terminals
1 and
2
.
• Perform the registration using the remote controller for the air conditioner or MELANS. (Refer to the
installation instructions for the remote controller for the air conditioner or MELANS.)
• Check if the delay start time has been set.
• Check the following items after removing the transmission cable from external device.
Operation signal Stop signal
Charged 12 or 24 VDC output device 12 or 24 VDC 0 VDC
Volt-free contact output device
Resistance: 0 Ω Unlimited resistance Ω
Mr. Slim with Slim-Lossnay connection cable. 2 to 6 VDC (pulse signal) 2 to 6 VDC (pulse signal)
• When multiple Lossnay units are connected, check the external signal is inputted into the main unit.
Lossnay does not stop. • Check that the trial operation switch (SW2-1) is set to o󰀨.
The inspection indicator lamp (LED
1 Green) in the control box ashes.
1 ash Fault on supply fan motor
Turn the power o󰀨 and consult
your dealer.
2 ashes Fault on exhaust fan motor
4 ashes Fault on OA thermistor
5 ashes Fault on RA thermistor
6 ashes Fault on supply fan motor
7 ashes Fault on exhaust fan motor
8 ashes Fault on Pre-heater capacity or relay
9 ashes Fault on remote controller communication
10 ashes Fault on function setting
11 ashes Fault on power supply to remote controller
12 ashes Fault on CO
2 sensor, PZ-70CSB-E or PZ-70CSW-E
• 15 or 30 minutes in the delay start setting, LED lits ON.
• LED blinks just after power supply ON.
The inspection indicator lamp (LED
2 Red ) in the control box ashes.
1 to 8
ashes
Error in M-NET communication Turn o󰀨 the power and immediately contact your
dealer.
nWhen an error code blinks on the remote controller, follow the procedures shown in the installation and operating manuals provided with the
remote controller.
nIn case of operating Lossnay unit by external input, operate after approximately 2 minutes of turning on the power for the Lossnay.
HEAD OFFICE:
TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN