Mitsubishi Electric Y Series Manual page 245

5. Precautions for control-related items
5-1. 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-200E/AE-50E/EW-50E, 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-200E/AE-50E and EW-50E, 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-200E/AE-50E or EW-50E, 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-200E/AE-50E or EW-50E 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-200E/AE-50E/EW-50E/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.
5-2. 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-200E/AE-50E or EW-50E to the Internet.
Installation Information
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