-
134
-
'14 • KX-SM-202
4.
PIPING SYSTEM
Models FDC280KXZE1, 335KXZE1
FDCS280KXZE1, 335KXZE1
Notes (1) Preset point of protective devices 63H1-1 : Open 4.15MPa, Close 3.15MPa (For protection)
(2) Function of thermistor
PSH : For compressor control
3.70 ON (MPa)
PSL
: ON 0.18MPa, OFF 0.20MPa
(For compressor control) ON 0.134MPa, OFF 0.18MPa (For protection)
Thi-R1, R2 : Heating operation : Indoor fan control. Cooling operation : Frost prevention control. Super heat control. Thi-R3 :
For super heat control of cooling operation.
Tho-D :
For control of dischar
ge pipe temperature.
Tho-C :
For control of temperature under the dome.
Tho-S : For control of suction pipe temperature. Tho-R1, R2 : For control of defrosting. Tho-A
:
For control of defrosting.
Tho-R3, R4 : Electronic expansion valve (EEVH1, 2) control of heating operation Tho-SC :
Electronic expansion valve (EEVSC) control of cooling operation.
Tho-H :
For super heat control of sub-cooling coil.
PCB003Z822
Gas line
Liquid line
Strainer
Electronic expansion valve
Strainer
To next indoor units
（
Thi-R2
）
Thermistor
（
Entrance
）
（
Thi-A
）
Thermistor
Thermistor
（
Exit
）
（
Thi-R3
）
Thermistor
（
Bend
）
（
Thi-R1
）
（
Thi-R2
）
Thermistor （Thi-A
）
Thermistor
（
Entrance
）
Thermistor
（
Exit
）
（
Thi-R3
）
Heat exchanger
Outdoor unit
Indoor unit
For outdoor unit 2
Electronic expansion valve （
EEVSC
）
Check joint High pressure sensor
（PSH
）
4way valve
Sub-cooling coil Thermistor （Tho-SC
）
（
Tho-C1
）
Thermistor
Compressor 1
CM1
Oil separator
Check valve
Thermistor （Tho-D1
）
Service valve
Receiver
（
Tho-A
）
Sub-cooling coil
Thermistor （Tho-S
）
（Tho-R2
）
（Thermistor
,Exit ・Back
）
（Tho-R1
）
（Thermistor
,Exit ・Front
）
Thermistor
Muffler
Capillary tube
Heat exchanger
Strainer
Electronic expansion valve
Strainer
Indoor unit
Thermistor
（
Bend
）
（
Thi-R1
）
Strainer
Solenoid
valve （SV6
）
Capillary tube
Service valve
（
Oil equalization line
）
Strainer
Service valve
Strainer
Strainer
Strainer
High pressure switch
（63H1-1
）
Strainer
Solenoid valve （SV11
）
Capillary tube
Solenoid
valve
（SV1
）
Capillary tube
Accumlator
Low pressure sensor
（PSL
）
Check joint
Sub-cooling coil
Thermistor
（Tho-H
）
Sub-cooling coil
Strainer
Strainer
Electronic
expansion valve
（EEVH1
）
Electronic
expansion valve
（EEVH2
）
Heat exchanger
Sub-cooling coil
Heat exchanger
（Tho-R3
）
（Thermistor
,Entrance ・Front
）
（Tho-R4
）
（Thermistor
,Entrance ・Back
）
Strainer