Connected Indoor Units Capacity Over - Toshiba Super MMU-AP0091H Service Manual

Check code
[E16] / [89]
(d07 / AI-NET)
Sub-code: 00 : Capacity over 49 to 64 of connected units
Is backup operation of outdoor unit being set up?
Is No. of connected indoor units correct?
Is setup of indoor unit HP correct?
Is total capacity of connected
indoor units within 135%?
For a service P.C. board, check outdoor HP setup.
(Set up jumper 9, 10, 11, and 12.)
Check outdoor interface P.C. board A'ssy.
Check code name
Connected indoor units
capacity over
NO
YES
YES
YES
NG
1. There are 48 or more connected indoor units.
2. Capacity over of total connected indoor units.
3. Incorrect setup of indoor/outdoor capacity
YES
Perform setup of no detection
NO
Excessive indoor units are connected.
NO
NO
indoor units within 135% of outdoor units.
OK
(Refer "How to exchange interface P.C. board".)
(∗ ∗ ∗ ∗ ∗ 1) Setup of no detection of capacity over
Turn SW09 Bit 2 on I/F P.C. board of header
outdoor unit to ON. (Usually OFF)
157
Cause of operation
for capacity over. ( 1)
Correct miscabling.
Correct HP setup.
Set capacity of connected
Set up outdoor HP.