Mitsubishi Electric QAHV-N560YA-HPB, Service Handbook

Page: 39 / 176

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HWE1517A GB
(5) Re-initializing the system
(6) Resetting the system
When the settings for the items below have been changed, the system will require re-initialization.
• Dip switch SW2-9 (multiple unit control)
• External signal input setting: Item codes [105], [106], [107], [110], [111], [112], [121], and [1214]
• Rotary switches (SWU1 and SWU2) (unit address)
Take the following steps to re-initialize the system:
Take the following steps to reset the system. An error can also be reset by taking the steps below.
When an error on the MAIN unit is reset, all sub units will stop.
(1) Set the rotary switch SWU3 to "F."
[FFFF] will appear in the LED1.
(2) Press and hold the push switch SWP3 for one second or longer.
• While the system is starting up [9999] will appear on LED1.
• When start-up is complete, a control property [0001] will appear.
• Then, five seconds later, [FFFF] will appear.
(3) Set the rotary switch SWU3 back to "0."
(1) Set the rotary switch SWU3 to "F."
[FFFF] will appear in the LED1.
(2) Press and hold the push switch SWP3 for one second or longer.
• While the system is starting up [9999] will appear on LED1.
• When start-up is complete, a control property [0001] will appear.
• Then, five seconds later, [FFFF] will appear.*
* If [EEEE] appears, perform the procedures in (2) again.
[--ng] is displayed before the water flow rate adjustment operation is performed.
(3) Set the rotary switch SWU3 back to "0."
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