75
Flow Selector Unit (Continued)
SVSS
v
alv
e
Discharge
.
Liquid
b
ypass
capillar
y,
Chec
k
v
alv
e
Clogging
Leakage
O
All cooling
Mainly cooling (Indoor cooling)
Mainly heating (Indoor cooling)
• Oper
ation is changed from heating to cooling.
z
Indoor unit,
flo
w selector unit
Chec
k v
alv
e
Capillar
y
clogging
O
Comm
ucation
line
Po
w
e
r
supply line
Disconnection
Contact error
Mis
w
ir
ing
In some cases
, phenomena such as abo
v
e
occur
.
All cooling (SV11 ON)
Mainly cooling (Indoor cooling)
Mainly heating (Indoor cooling)
O
All heating
Mainly cooling (Indoor heating)
Mainly heating (Indoor heating)
• Gas shor
t is obser
v
ed and PD and PS ma
y be lo
w
er than those
in nor
mal time
.
•
TD and
TS ma
y be higher than those in nor
mal time
.
All cooling (SV11 ON)
Mainly cooling (Indoor cooling)
Mainly heating (Indoor cooling)
•
TCJ and
TC1 are heated same as heating.
(Heating circuit)
• Suction gas pipe at outdoor side of selector unit is f
air
ly heated.
D
O
All heating
Mainly cooling (Indoor heating)
Mainly heating (Indoor heating)
• Refr
iger
ant i mpact sound is heard at defrost time
.
z
Indoor unit,
flo
w selector unit
OO
SVSS circuit
All heating
Mainly cooling (Indoor heating)
Mainly heating (Indoor heating)
• Refr
iger
ant sound ma
y be heard from SVSS v
alv
e circuit.
•
T
e
mper
ature of suction gas pipe at outdoor side of the selector
unit is higher than that of nor
mal selector unit.
Alle cooling (SV11 OFF)
O
Chec
k v
alv
e
leakage
• Refr
iger
ant sound ma
y be heard from chec
k v
alv
e
.
• Discharge gas pipe is cold or it ma
y be froz
en.
O
Chec
k v
alv
e
circuit
P15
[Gas leak
detection]
Piping
Discharge
pipe Liquid
pipe
Gas pipe
Incorrect
piping
Discharge
pipe
↔
Suction gas
pipe
All cooling (SV11 OFF)
O
• Impossib
le judgment
All heating
Mainly cooling (Indoor heating)
Mainly heating (Indoor heating)
O
•
T
e
mper
ature of suction gas pipe at outdoor side of the FS unit is
higher than that of the nor
mal FS unit.
P
a
rt
name
O
z
T
roub
le
mode
Operation mode
Phenomenon whic
h appear
s as result
(Corresponding indoor unit or flo
w selector unit)
J
udgment and position to be c
hec
ked
Example of
refrig
erant
flo
w
Not
cooled
Not
heated
Ma
y become
almost normal
capacity
Abnormal
refrig
erant sound
Cir
c
ulating
sound
Detection of
c
h
ec
k code
Содержание R410A
Страница 1: ...Quick reference SHRM File No A13 004 SUPER HEAT RECOVERY MULTI UL Model R410A ...
Страница 95: ......