Mitsubishi Electric Mr.SLIM PUZ-A42NHA5-BS Service Manual page 57

Active filter module
PUZ-A42NHA5
PUY-A42NHA5
L1, L2
Connect to the
DCL (Reactor)
Upper side
+
Connect to the
outdoor power
circuit board
(TABP1)
–
Connect to the outdoor power
circuit board (TABN1)
Connection and internal circuit diagram
Tester check points of Active fi lter module
Error condition Normal value (reference)
(–) and Io open
short
(–) and L2
open
short
P and L2
open
short
P and Io
open
short
L2 and Io
open
W1. The symptom when the unit is in open error condition is described to determine open error by tester check.
W2. SW2 setting
1
OCH512
PUZ-A42NHA5-BS
PUY-A42NHA5-BS
(+)
(–)
1 The unit does not operate (can not be switched ON)
less than 1"
1 The breaker operates
100k" ~ 1M"
W1 1 The unit does not operate (can not be switched ON) 2 U9 Abnormal stop (W2)
1 The breaker operates
100k" ~ 1M"
W1 1 The unit does not operate (can not be switched ON) 2 U9 Abnormal stop (W2)
1 The breaker operates
100k" ~ 1M"
W1 1 The unit does not operate (can not be switched ON) 2 U9 Abnormal stop (W2)
1 The breaker operates
100k" ~ 1M"
W1 1 The unit does not operate (can not be switched ON) 2 U9 Abnormal stop (W2)
ON
: Code "20" display
OFF
6
Connect to the outdoor power
circuit board (CNAF)
1 : GND
2-1 : 18V DC
3-1 : Control signal
4, 5 : Not used
6-1 : Control signal
DCL
L1 L2 ACTM
Symptom when the unit is in trouble
57
P
Connect to the outdoor power
circuit board (TABP2)
N1
Non-connect
N2
Non-connect
Io
Connect to the outdoor power
circuit board (TABN2)
P
+
N1
N2
Io
Lower side