Table of Contents
1. Installation information
1-4. Precautions for control-related items
1-4-1. Product specification
To introduce the MELANS system, a consultation with us is required in advance. Especially to introduce the electricity
charge-apportioning function or energy save function, further detailed consultation is required. Consult your local
distributor for details.
Billing calculation for AE-200A/AE-50A/EW-50A, or the billing calculation unit is unique and based on our original
method. (Backup operation is included.) It is not based on the metering method, and do not use it for official business
purposes. It is not the method that the amount of electric power consumption (input) by air conditioner is calculated. Note
that the electric power consumption by air conditioner is apportioned by using the ratio corresponding to the operation
status (output) for each air conditioner (indoor unit) in this method.
In the apportioned billing function for AE-200A/AE-50A and EW-50A, separate watt-hour meters should be used for
A-control units, K-control units, and CITY MULTI packaged air conditioners. It is recommended that an individual
watt-hour meter should be used for large-capacity indoor units (with two or more addresses).
When using the peak cut function on the AE-200A/AE-50A or EW-50A, note that the control is performed once every
minute and it takes time to obtain the effect of the control. Take appropriate measures such as lowering the criterion
value. Power consumption may exceed the limits if the AE-200A/AE-50A or EW-50A malfunctions or stops. Provide a
back-up remedy as necessary.
The controllers cannot operate while the indoor unit is OFF. (No error)
Turn ON the power to the indoor unit when operating the controllers.
When using the interlocked control function on the AE-200A/AE-50A/EW-50A/PAC-YG66DCA or PAC-YG63MCA, do
not use the control for fire prevention or security. (This function should never be used in a way that would put people's
lives at risk.) Employ any methods or circuits that allow ON/OFF operation using an external switch in case of failure.
1-4-2. Installation environment
Surge protection may be required for the transmission line in areas where lightning strikes occur frequently.
The receiver for a wireless remote controller may not work properly due to the effect of general lighting. Leave a space
of at least 1 m between the general lighting and the receiver.
When the auto-elevating panel is used and the system is operated using a wired remote controller, install the wired
remote controller in a place where all the air conditioners being controlled (at least the bottom part of them) can be seen
from the wired remote controller. If not, the descending panel may cause damage or injury; be sure to use a wireless
remote controller designed for use with the elevating panel (sold separately).
Install the wired remote controller (switch box) in a place where the following conditions are met.
Where the installation surface is flat
Where the remote controller can detect an accurate room temperature
The temperature sensors that detect the room temperature are installed both in the remote controller and in the indoor
unit.
When the room temperature is detected using the sensor in the remote controller, the main remote controller is used
to detect the room temperature. In this case, follow the instructions below.
Install the controller in a place where it is not affected by a heat source.
(If the remote controller faces direct sunlight or the direction of the supply air flow, the remote controller cannot detect
the accurate room temperature.)
Install the controller in a place where the average room temperature can be detected.
Install the controller in a place where no other wires are present around the temperature sensor.
(If other wires are present, the remote controller cannot detect an accurate room temperature.)
To prevent unauthorized access, always use a security device such as a VPN router when connecting the
AE-200A/AE-50A or EW-50A to the Internet.
MEES20K084
Installation information
6
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