Hitachi Utopia RPI-2.5HRG User Manual

1-71
TROUBLESHOOTING
If item (i) to (m) are performed and the results are
satisfactory, ISPM is normal.
Measure it under 1 kΩ range of a tester.
Do not use a digital tester.
(i) Perform the item (a) to (h).
(j) By touching the + side of the tester to the RB terminal
of ISPM and the - side of the tester to P terminal of
ISPM. If the resistance is more than 1 kΩ, it is normal.
(k) By touching the - side of the tester to the RB terminal
of ISPM and the + side of the tester to P terminal of
ISPM. If the resistance is more than 100 kΩ, it is
normal.
(l) By touching the + side of the tester to the RB terminal
of ISPM and the - side of the tester to N terminal of
ISPM. If the resistance is more than 90 kΩ, it is
normal.
(m) By touching the - side of the tester to the RB terminal
of ISPM and the + side of the tester to N terminal of
ISPM. If the resistance is more than 90 kΩ, it is
normal.
P1 PB
P
N
N
TB3
+
-
RS W
RB
VTU
NPD P
TB2
R216
R215
ZN20
LED201
ZN202
R201
R200
CN207 CN206
CN9
PC207
C
PC208
CN8
RB
N
P
P1
RB
P
TB3
+
-
RS W
RB
VTU
NPD P
TB2
R216
R215
ZN20
LED201
ZN202
R201
R200
CN207 CN206
CN9
PC207
C
PC208
CN8
RB
N
P
P1
RB
P
TB3
+
-
RS W
RB
VTU
NPD P
TB2
R216
R215
ZN20
LED201
ZN202
R201
R200
CN207 CN206
CN9
PC207
C
PC208
CN8
RB
N
P
P1
RB
N
TB3
+
-
RS W
RB
VTU
NPD P
TB2
R216
R215
ZN20
LED201
ZN202
R201
R200
CN207 CN206
CN9
PC207
C
PC208
CN8
RB
N
P
P1
RB
N
Active Parts of Internal Circuit of ISPM (for 3 and 4HP)

Hitachi Utopia RPI-2.5HRG Specifications

General

Brand	Hitachi
Model	Utopia RPI-2.5HRG
Category	Air Conditioner
Language	English