Carrier RBM-Y0613FUL User Manual

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9-8-1. Flow Selector Unit (FS Unit) Leakage of SVD valve or SVS valve, etc; Positions to be checked and check code when a trouble such as miswiring occurred.
Part name
SVD valve
SVS valve
Clogging
O
All heating Mainly cooling (Room heating) Mainly heating (Room heating)
• TC1 is lower than normal indoor unit. • Temperature of gas pipe at indoor side of the flow selector
unit is lower than that of normal FS unit.
Leakage
A
O
SVD circuit –
SVS circuit
O
z
O
All cooling (SV11 ON) Mainly cooling (Room cooling) Mainly heating (Room cooling)
• Compared with normal indoor unit, TCJ is higher. • Suction gas pipe at outdoor side of the flow selector unit is hot. • Refrigerant circulating sound is heard in bypass from SVD valve
to SVS valve.
Miswiring/ Misinstallation of coil SVD
↔
SVS
O
SVSS circuit
O
All cooling (SV11 OFF)
• TCJ is higher than normal indoor unit. • Gas pipe at indoor side of the flow selector unit is not cold. • Refrigerant circulating sound is heard from SVSS valve.
Clogging
O
SVSS circuit
O
All cooling Mainly cooling (Room cooling) Mainly heating (Room cooling)
• TCJ is higher than normal indoor unit. • Gas pipe at indoor side of the flow selector unit is not cold. • Refrigerant circulating sound is heard from SVSS valve.
SVDD
valve
Clogging
z
Indoor unit,
flow selector unit
O
All heating Mainly cooling (Room heating) Mainly heating (Room heating)
• In start time, when exchanging mode from cooling to heating after
defrost operation, refrigerant shock sound may be heard.
Leakage
O
SVDD circuit
O
All cooling (SV11 ON) Mainly cooling (Room cooling) Mainly heating (Room cooling)
• Refrigerant circulating sound may be heard from SVDD valve circuit. • Suction gas pipe at outdoor unit side of the flow selector unit may
be hot.
Miswiring/ Misinstallation of coil SVD
↔
SVS
O
SVDD circuit
O
All cooling (SV11 ON) Mainly cooling (Room cooling) Mainly heating (Room cooling)
O
SVDD circuit
O
All heating Mainly cooling (Room heating) Mainly heating (Room heating)
• Refrigerant circulating sound may be heard from SVDD valve
circuit.
z
Indoor unit,
flow selector unit
O
All heating Mainly cooling (Room heating) Mainly heating (Room heating)
• Refrigerant circulating sound may be heard from SVDD valve circuit. • Suction gas pipe at outdoor unit side of the flow selector unit may
be hot.
• In start time, when exchanging mode from cooling to heating after
defrost operation, refrigerant shock sound may be heard.
Leakage
P19 “4-way
valve reversal
error”
O
SVS circuit
O
All heating Mainly cooling (Room heating) Mainly heating (Room heating)
• Compared with normal indoor unit, TCJ is low. • Temperature of suction gas pipe at outdoor side of the flow
selector unit is higher than that of normal flow selector unit.
• Refrigerant circulating sound is heard from SVS valve circuit.
O
SVD circuit
O
All cooling (SV11 ON) Mainly cooling (Room cooling) Mainly heating (Room cooling)
B
• Temperature of TCJ and TC1 become high similar to heating. (All
heating circuit)
• Discharge gas pipe at outdoor unit side of the flow selector unit is
rather hot.
• Refrigerant circulating sound is not heard from SVS valve, but it is
heard from SVD valve.
O
SVS circuit
O
L18 “Flow
selector unit
error”
C
. Gas pipe at indoor side of the flow selector unit is cold. (Cooling circuit, Liquid pack) . Refrigerant circulating sound is not heard from SVD valve, but it is heard from SVS valve.
All heating Mainly cooling (Room heating) Mainly heating (Room heating)
Trouble
mode
Operation mode
Phenomenon which appears as result
(Corresponding indoor unit or flow selector unit)
Judgment and position to be checked
Example of
refrigerant
flow
Not
cooled
Not
heated
May become
almost normal
capacity
Abnormal refrigerant sound Circulating sound
Detection of
check code

Carrier RBM-Y0613FUL Specifications

General

Brand	Carrier
Model	RBM-Y0613FUL
Category	Air Conditioner
Language	English