Mitsubishi Electric PUHZ-SHW80VHA Service Manual page 41

A b normal p oint and detec tion meth od
C h ec k c ode
F reez ing/ ov erh eating p rotec tion is working
Tcond
stage-g
18
P ip e temp erature
[
A b normal refrigerant c irc uit
T h ese detec ted errors will not b e
c anc elled until th e p ower sourc e is
reset.
OCH526C
1
2
:
3
4
5
6
stage-e
stage-f
17 15 14 12
stage-a stage-b stage-c stage-d stage-e stage-f stage-g
Tcond 63 62
1
2
:
3
4
5
: [
1
2
3
4
5
C ase
4 6
stage-c
stage-d
11 9 8 6
Ambient temperature (TH 7 )
61 60 59 57
Judgment and ac tion
12
3
45
6
stage-a
stage-b
5 3 2
[ :]
51
1 4
Temperature display of indoor condenser/
Temperature display of indoor liq uid pipe
evaporator pipe Indoor 1
Indoor 1
1 2 3 4 5 6 1
ON
OFF
Temperature display of indoor condenser/
Temperature display of indoor liq uid pipe
evaporator pipe Indoor 2
Indoor 2
1 2 3 4 5 6 1
ON
OFF
A-Control Service Tool SW2 setting
23
1 W h en th is error oc c urs, b e sure to
rep lac e th e 4 - way v alv e.
2
3
4
5
T o av oid entry of moisture or air into
refrigerant c irc uit wh ic h c ould c ause
ab normal h igh p ressure, p urge air in
refrigerant c irc uit or rep lac e refrigerant.
2 3 4 5 6
ON
OFF
2 3 4 5 6
ON
OFF