Mitsubishi Electric PURY-(E)P200 Service Handbook page 116

[ VI Refrigerant Circuit ]
Part Symbols
name (functions)
Ther- TH3
mistor (Pipe
temperature)
TH7
(Outdoor tem-
perature)
TH5
TH6
THHS
Inverter
heat sink tem-
perature
THBOX
Control box in-
ternal tempera-
ture detection
Sole- SV1a
noid Discharge-suc-
valve tion
bypass
SV2
SV4a - SV4d
Heat
exchanger
capacity control
SV5b
Heat
exchanger
capacity control
SV5c
SV9
Heater CH11
4-way 21S4a
valve
HWE07130
Notes Usage
Controls defrosting during heating
operation
1) Detects outdoor air tempera-
ture
2) Controls fan operation
Fan operated on the 63LS and
TH5 values.
Controls defrosting during heating
operation
Controls inverter cooling fan
based on THHS temperature
1) High/low pressure bypass at
start-up and stopping, and
capacity control during low-
load operation
2) High-pressure-rise preven-
tion
Controls outdoor unit heat ex-
changer capacity
Prevents high-pressure-rise
Controls defrost cycle
Allows the refrigerant to pass
through the bypass pipe to pre-
vent an accumulation of liquid re-
frigerant
High-pressure-rise prevention
Heats the refrigerant in the com-
pressor
Changeover between heating and
cooling
- 107 -
Specifications
Degrees Celsius
R = 15k
0
R = 3460
0/80
1 1
R = 15 exp
3460
t
273
0°C[32°F] :15kohm
10°C[50°F] :9.7kohm
20°C[68°F] :6.4kohm
25°C[77°F] :5.3kohm
30°C[86°F] :4.3kohm
40°C[104°F] :3.1kohm
Degrees Celsius
R = 17k
50
R = 4016
25/120
1 1
R = 17 exp
4016
t
323
0°C[32°F] :161kohm
10°C[50°F] :97kohm
20°C[68°F] :60kohm
25°C[77°F] :48kohm
30°C[86°F] :39kohm
40°C[104°F] :25kohm
AC220 - 240V
Open while being powered/
closed while not being pow-
ered
AC220 - 240V
Closed while being powered/
open while not being powered
AC220 - 240V
Open while being powered/
closed while not being pow-
ered
AC220 - 240V
Open while being powered/
closed while not being pow-
ered
Cord heater
P200 - P250 models
1143 ohm 35W
P300 - 400 models
889 ohm 45W
AC220-240V
Dead: cooling cycle
Live: heating cycle
Check method
Resistance
check
Continuity
check with a
tester
Resistance
check
Continuity
check with a
tester
GB