Toshiba MMY-MUP1201HT8P-A User Manual

Miswiring example
Remote Header unit
Figure controller 7-segment Miswiring example
status display
Header unit
Header unit
Header unit Header unit
Line 1
Line 2
Uv Uc
Uv Uc
Uv
Uv
U1 U2 U5 U6
U1 U2 U5 U6
U1 U2
U1 U2
Fig 1 No response E19, 02
U1 U2 U1 U2
U1 U2 U1 U2
Uv Uv
Uv Uv
Header unit Header unit
Uh Uv
U3 U4
U1 U2
Fig 2 E11 L08
Wiring forgotten
U1 U2
A B
U1 U2 U1 U2
Uv
Uv Uv
Figure Status Miswiring example
The number of connected
outdoor units is few.
Header unit
Follower unit
Header unit
Follower unit
Uv Uc
Uh
Uv Uh Uc
U1 U2 U5 U6
U3 U4
U1 U2 U3 U4 U5 U6
Fig 3
U1 U2 U1 U2
U1 U2 U1 U2
Uv Uv
Uv Uv
The number of connected
indoor units is few.
Header unit Header unit
Uv Uv
U1 U2 U1 U2
Fig 4
Wiring forgotten
U1 U2
A B
U1 U2 U1 U2
Uv
Uv Uv
• Follower unit is incorrectly set to
header unit.
• Indoor/outdoor communication line is
miswired to header unit of other system.
• Indoor/outdoor communication line is
miswired to Uh (U3/U4).
• Indoor/outdoor communication line is
not connected.
• Outdoor communication line is miswired to Uh (U3/U4).
• Indoor/outdoor communication line is
miswired to remote controller terminal (A/B).
• There is an indoor unit not connected to
the indoor/outdoor communication line.
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Toshiba MMY-MUP1201HT8P-A Specifications

General

Brand	Toshiba
Model	MMY-MUP1201HT8P-A
Category	Air Conditioner
Language	English