Mitsubishi Electric PUHY-HP120TNU-A, Руководство по обслуживанию

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[3-3 Functions of the Major Components of Outdoor Unit ]
4
- chapter 3 HWE18240_GB
3 Major Components, Their Fu
nctions and Refrigerant Circuits
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 circulating
refrigerant by adjusting the operat-
ing frequency based on the oper-
ating pressure data HP72 model
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.078
ȍ
(YNU),
0.192
ȍ
(TNU)
HP96, HP120 models
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.087
ȍ
(YNU),
0.219
ȍ
(TNU)
High
pres-
sure
sensor 63HS1 1) Detects high pressure
2) Regulates frequency and pro-
vides high-pressure protec-
tion
Low
pres-
sure
sensor 63LS 1) Detects low pressure
2) Provides low-pressure pro-
tection
3) Defrost control during heating
operation
Pres-
sure
switch 63H1 1) Detects high pressure
2) Provides high-pressure pro-
tection
4.15MPa[601psi] OFF setting
Power
supply
trans-
former Transformer YNU only Decreases the power supply volt-
age (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