Mitsubishi Electric R410A, Руководство по обслуживанию

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[3-3 Functions of the Major Components of Outdoor Unit ]
- 57 - HWE14080 GB
3
M
a
jor Compone
nts
,
Th
eir Func
tions
a
nd Ref
rig
era
nt Cir
c
uits
3-3 Functions of the Major Components of Outdoor Unit
Part
name
Symbols
(functions)
Notes Usage Specifications Check method
Com-
pressor MC1
(Comp1) Adjusts the amount of cir-
culating refrigerant by ad-
justing the operating
frequency based on the op-
erating pressure data P72, 96 models
Low-pressure shell scroll com-
pressor
Wirewound resistance
20°C[68°F] :
0.26
ȍ
(TLMU)
0.845
ȍ
(YLMU)
P120, 144 models
Low-pressure shell scroll com-
pressor
Wirewound resistance
20°C[68°F] :
0.124
ȍ
(TLMU)
0.431
ȍ
(YLMU)
P168 model
Low-pressure shell scroll com-
pressor
Wirewound resistance
20°C[68°F] :
0.085
ȍ
(TLMU)
0.297
ȍ
(YLMU)
High
pressure
sensor
63HS1 1) Detects high pressure
2) Regulates frequency
and provides high-
pressure protection
Low
pressure
sensor 63LS 1) Detects low pressure
2) Provides low-pressure
protection
Pressure
switch 63H1 1) Detects high pressure
2) Provides high-pres-
sure protection
4.15MPa[601psi] OFF setting
Power
supply
trans-
former Transformer YLMU
only Decreases the power sup-
ply voltage (460V) supplied
to the circuit board Primary rated voltage:
460V, 50/60Hz
Secondary rated voltage:
229V
(No-load voltage)
Pressure
0~4.15 MPa [601psi]
Vout 0.5~3.5V
0.071V/0.098 MPa [14psi]
Pressure [MPa]
=1.38 x Vout [V]-0.69
Pressure [psi]
=(1.38 x Vout [V] - 0.69) x 145
GND (Black)
Vout (White)
Vcc (DC5V) (Red)
Con-
nector
63HS1
1
1 2 3
2
3
Pressure
0~1.7 MPa [247psi]
Vout 0.5~3.5V
0.173V/0.098 MPa [14psi]
Pressure [MPa]
=0.566 x Vout [V] - 0.283
Pressure [psi]
=(0.566 x Vout [V] - 0.283) x 145
GND (Black)
Vout (White)
Vcc (DC5V) (Red)
Con-
nector
63LS
1
1 2 3
2
3