System Configurations - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[2-1 System Configurations ]

2-1

System Configurations

2 Restrictions
Indoor unit model
PFD-P250VM-E
PFD-P500VM-E
*1 When two outdoor units are connected to one indoor unit, two refrigerant circuits must be connected.
Only one refrigerant circuit can be connected to the indoor unit at factory shipment. To connect two refrigerant circuits, per-
form some work on the unit.
1. Restrictions when the PFD-type indoor units are connected (related to the system)
(1) The PFD-type indoor units cannot be connected to the ME remote controller.
(2) The address settings must be made on this system.
(3) The following functions cannot be selected on the PFD-type indoor units.
1) Switching between automatic power recovery Enabled/Disabled (Fixed to "Enabled" in the PFD-type indoor units)
2) Switching between power source start/stop (Fixed to "Disabled" in the PFD-type indoor units)
(4) The PFD-type indoor units and other types of indoor units cannot be grouped.
(5) The following functions are limited when the system controller (such as AE-200E) is connected.
1) To perform group operation in the system with two refrigerant circuits (combination of two outdoor units and one indoor unit:
P500 model only), the addresses of the controller boards No.1 and No.2 on a indoor unit must be set within a group.
2) The local operation cannot be prohibited with the main remote controller.
3) When the switches of the PFD-type indoor units are set as follows, the unit ON/OFF operation cannot be made with the main
remote controller.
When the Normal/Local switching switch is set to "Local"
When the DipSW1-10 on the controller circuit board is set to "ON"
BS_02_C
Outdoor unit model
PUHY-P250YNW-A
PUHY-P250YNW-A x 2 *1
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