GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
142
2.2 Pressure exception
Fau
lt
cod
e
Fault
Possible reasons
Solution
Primary reason
Secondary reason
Tertiary reason
Descripti
on
Confirmat
ion
method
Descripti
on
Confirmation
method
Descripti
on
Confirmat
ion
method
E1
High
pressur
e
protecti
on
1. The
stop
valve of
the ODU
is not
fully
opened
as
required.
——
——
——
——
Manual
check
Fully open
the stop
valve.
2. The
system
pipeline
is
blocked.
The
system's
exhaust
pressure
rises and
the low
pressure
is too low
(compare
d with the
reference
value).
2.1. The
system
air
pipeline
is
blocked.
Touch the
pipe along
the flowing
direction of
refrigerant to
feel the
temperature
difference.
The
difference is
large.
2.1.1
The
block is
caused
by
solder.
Cut off
the pipe
and
check it.
Replace
and solder
the pipe.
2.1.2
The
pipeline
is
blocked
by
impuritie
s.
Replace
and solder
the pipe.
2.2 The
fluid pipe
is
blocked.
Touch the
pipe along
the flowing
direction of
refrigerant to
feel the
temperature
difference.
The
difference is
large or part
of the pipe is
frosting.
——
——
Replace
and solder
the pipe.
2.4 The
pipe that
connects
the IDU
is
blocked.
Touch the
pipe along
the flowing
direction of
refrigerant to
feel the
temperature
difference.
The
difference is
large or part
of the pipe is
frosting.
2.4.1
The
block is
caused
by
solder.
Cut off
the pipe
and
check it.
Replace
and solder
the pipe.
2.4.2
The
pipeline
is
blocked
by
impuritie
s.
Replace
and solder
the pipe.
Summary of Contents for GMV-224WM/B-X
Page 1: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL T1 R410A 50 60Hz GC201508...
Page 27: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 24...
Page 29: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 26 V Construction Organization Process...
Page 38: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 35...
Page 47: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 44 GMV 504WM B X GMV 560WM B X and GMV 615WM B X...
Page 156: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 153 low press ure air pipe...
Page 158: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 155 2 Low exhaust temperature protection E2...
Page 160: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 157...
Page 161: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 158 5 System refrigerant lacking protection U4...
Page 162: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 159 6 System high pressure ratio protection J8...
Page 163: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 160 7 System low pressure ratio protection J9...
Page 165: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 162 11 Pressure sensor fault...
Page 224: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 221 2 Model GMV 335WM B X Exploded View...
Page 242: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 239...
Page 248: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 245 Click Finish...
Page 254: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 251 Click Next Installing...
Page 255: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 252 Click Close...
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Page 287: ...GMV5 DC INVERTER VRF UNITS SERVICE MANUAL 284 1 4 2 5 Communication Debug...
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