IVT 12PHR-N - Page 43

3-19
12PHR-N
Inter-unit wiring error mode Symptom
1 Malfunction diagnosis display “18-1”
2 Malfunction diagnosis display None
(Displays “18-0” when malfunction
code is called out.)
3 Malfunction diagnosis display None
(Displays “18-0” when malfunction
code is called out.)
4 Malfunction diagnosis display “18-1”
5 Malfunction diagnosis display “18-1”
Malfunction indications due to erroneous wiring during air conditioner installation
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
12PHR-N_S530612PHRN.indd 19 2013/8/7 15:42:18