Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 84

[3-3 Functions of the Major Components of Outdoor Unit ]
Part Symbols
name (functions)
Thermis- TH3
tor (Pipe
temperature)
TH7
(Outdoor tem-
perature)
TH5
(Pipe tempera-
ture)
TH15
(Compressor
shell bottom
temperature)
THHS
Inverter
heat sink tem-
perature
Sole- SV1a
noid Discharge-suc-
valve tion
bypass
SV2
LEV LEV2a, 2b, 2c
LEV2d
LEV4
LEV9
4-way 21S4a, b
valve
21S4c
Fan mo- FAN motor 1, 2
tor
BS_03_L
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.
Detects compressor shell bottom
temperature
Inverter overheating protection
1) High/low pressure bypass at
start-up and stopping, and
capacity control during low-
load operation
2) High-pressure-rise preven-
tion
Prevention of low-pressure drop
Refrigerant equalization control
LEV2c is (During cooling)
only on the Heat exchanger capacity control
(E)M500 (During heating)
models. Refrigerant equalization control
Heat exchanger capacity control
Injection amount control
Refrigerant cooling control
Changeover between heating and
cooling
(E)M500
models
only
FAN motor Regulates the heat exchanger ca-
2 is only on pacity by adjusting the operating
the frequency and operating the pro-
(E)M350 - peller fan based on the operating
(E)M500 pressure.
models.
Specifications
Degrees Celsius
R = 15k
0
R = 3460
0/80
1 1
R = 15 exp
3460
t
273
0°C[32°F] :15 kΩ
10°C[50°F] :9.7 kΩ
20°C[68°F] :6.4 kΩ
25°C[77°F] :5.3 kΩ
30°C[86°F] :4.3 kΩ
40°C[104°F] :3.1 kΩ
Degrees Celsius
R = 17k
50
R = 4016
25/120
1 1
R = 17 exp
4016
t
323
0°C[32°F] :161 kΩ
10°C[50°F] :97 kΩ
20°C[68°F] :60 kΩ
25°C[77°F] :48 kΩ
30°C[86°F] :39 kΩ
40°C[104°F] :25 kΩ
AC220 - 240V
Open while being powered/
closed while not being pow-
ered
AC220 - 240V
Open while being powered/
closed while not being pow-
ered
DC12V
Opening of stepping motor
driving valve 0-3000 pulses
(LEV2a, 2b)
0-3000 pulses
(LEV2d, (E)M200-300)
0-6000 pulses
(LEV2d, (E)M350-500)
DC12V
Opening of stepping motor
driving valve 0-480 pulses
(direct driven type)
AC220 - 240V
Dead: cooling cycle
Live: heating cycle
(E)M200 - (E)M300,
(E)M500
AC380 - 460V, 920W
(E)M350 - (E)M450
AC380 - 460V, 460W
Check method
Resistance check
Continuity check
with a tester
Continuity Test
with a Tester.
Continuity be-
tween white and
orange.Continui-
ty between yel-
low, brown, and
blue
White
M
Orange
Yellow Brown Blue
Continuity check
with a tester
15
chapter 3 -