Flow of Refrigerant Si18-201
186 Flow of Refrigerant
1.15 All-Room Operation (Heating)
THERMISTOR
LIQUID PIPE
OUTDOOR UNIT
MOTOR
MOTOR
DC FAN
DC FAN
DISTRIBUTOR
(
DEL
)
PROPELLER
PROPELLER
M
M
FAN
FAN
REFRIGERANT FLOW
THERMISTOR
(
DOA
)
OUTDOOR TEMPARATURE
HEAT EXCHANGER
HEATING
HEAT EXCHANGER
(
DE
)
THERMISTOR
DISCHARGE PIPE
COMPRESSOR
THERMISTOR
HEADER
OIL
SEPARATOR
FILTER
(
DO
)
ELECTRONIC
EXPANSION VALVE
FILTER
ELECTRONIC
EXPANSION VALVE
EV
G
FILTER
LOW PRESSURE
EV
L
4-WAY VALVE
FILTER
SENSOR
CAPILLARY TUBE
FILTER
SP
HIGH PRESSURE
SWITCH
RECEIVER
HPS
ELECTRONIC
EXPANSION VALVE
ACCUMULATOR
CAPILLARY TUBE
CHECK VALVE
FILTER
EV
P
FILTER
FLEXIBLE
TUBE
FILTER
FILTER
CHECK VALVE
SUCTION PIPE
THERMISTOR
LIQUID LINE
STOP VALVE
GAS LINE
STOP VALVE
(
DS
)
EXPANSION VALVE
(
BYPASS
)
FILTER
FILTER
ELECTRONIC
EV
H
EXPANSION VALVE
(
ROOM A
)
EXPANSION VALVE
(
ROOM B
)
EXPANSION VALVE
(
ROOM C
)
ELECTRONIC
ELECTRONIC
ELECTRONIC
EV
C
EV
B
EV
A
FILTER
FILTER
FILTER
THERMISTOR
(
DGC
)
THERMISTOR
(
DGB
)
THERMISTOR
(
DGA
)
THERMISTOR
(
DLC
)
THERMISTOR
(
DLB
)
THERMISTOR
(
DLA
)
GAS SIDE
GAS SIDE
GAS SIDE
LIQUID SIDE
LIQUID SIDE
LIQUID SIDE
EXPANSION VALVE
(
BYPASS
)
FILTER
FILTER
ELECTRONIC
EV
H
EXPANSION VALVE
(
ROOM A
)
EXPANSION VALVE
(
ROOM B
)
ELECTRONIC
ELECTRONIC
EV
A
EV
B
FILTER
FILTER
THERMISTOR
(
DLA
)
THERMISTOR
(
DLB
)
THERMISTOR
(
DGA
)
THERMISTOR
(
DGB
)
GAS SIDE
GAS SIDE
LIQUID SIDE
LIQUID SIDE
EXPANSION VALVE
(
BYPASS
)
FILTER
FILTER
ELECTRONIC
EV
H
EXPANSION VALVE
(
ROOM A
)
EXPANSION VALVE
(
ROOM B
)
ELECTRONIC
ELECTRONIC
EV
A
EV
B
FILTER
FILTER
THERMISTOR
(
DLA
)
THERMISTOR
(
DLB
)
THERMISTOR
(
DGA
)
THERMISTOR
(
DGB
)
GAS SIDE
GAS SIDE
LIQUID SIDE
LIQUID SIDE
FIELD PIPING
FIELD PIPING
(
CuT
)
(
6.4CuT
)
SIRROCO FAN
FAN MOTOR
M
HEAT EXCHANGER
M
M
M
M
M
M
BP UNIT
(M1313)
Productive operation patterns
All-room operation
Conditions
(1) Unit is not in the capacity control
(The operating frequency does not droop to the minimum frequency by high pressure
control system protection.)
(2) All-room units in operation
As the refrigerant circuit is in the status of no receiver provided, the same control as the
conventional multi type (M-5) is conducted.
System control motorized valve : EVT·(EVU)
Each room distribution control motorized valve : EVU
EVG Full close (Reverse target discharge
pipe temperature control)
H
EVL Target discharge pipe temperature
control
EVP Full close
H
EVU Heating SC control
EVH Full close
H
EVT Target discharge pipe temperature
control
"ON"
"ON"
"ON"
"ON"
"ON"
"ON"
"ON"
: High pressure liquid refrigerant
: High pressure high temp. gas refrigerant
: Low pressure low temp. liquid or gas refrigerant
FIELD PIPING
FIELD PIPING
(
CuT
)
(
6.4CuT
)
SIRROCO FAN
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
(
CuT
)
(
6.4CuT
)
SIRROCO FAN
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
(
CuT
)
(
6.4CuT
)
SIRROCO FAN
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
(
CuT
)
(
6.4CuT
)
SIRROCO FAN
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
(
CuT
)
(
6.4CuT
)
SIRROCO FAN
FAN MOTOR
HEAT EXCHANGER
FIELD PIPING
FIELD PIPING
(
CuT
)
(
6.4CuT
)
SIRROCO FAN
FAN MOTOR
HEAT EXCHANGER
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