Functions Of The Major Components Of Outdoor Unit - Mitsubishi PUHY-EP250 Service Handbook

[3-3 Functions of the Major Components of Outdoor Unit ]

3-3

Functions of the Major Components of Outdoor Unit

Part Symbols
name (functions)
Com- MC1
pressor (Comp1)
High 63HS1
pres-
sure
sensor
Low 63LS
pres-
sure
sensor
Pres- 63H1
sure
switch
HWE12050
Notes Usage
Adjusts the amount of circulating
refrigerant by adjusting the operat-
ing frequency based on the oper-
ating pressure data
1) Detects high pressure
2) Regulates frequency and pro-
vides high-pressure protec-
tion
1) Detects low pressure
2) Provides low-pressure pro-
tection
1) Detects high pressure
2) Provides high-pressure pro-
tection
Specifications
EP200, EP200 models
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.71 Ω
EP300, EP350 models
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.32 Ω
EP400, EP450 models
Low-pressure shell scroll
compressor
wirewound resistance
20°C [68°F] : 0.30 Ω
Pressure
63HS1
0~4.15 MPa [601psi]
Vout 0.5~3.5V
1 2 3
0.071V/0.098 MPa [14psi]
Pressure [MPa]
Con-
=1.38 x Vout [V]-0.69
nector
Pressure [psi]
=(1.38 x Vout [V] - 0.69) x 145
GND (Black)
1
2
Vout (White)
3
Vcc (DC5V) (Red)
Pressure
63LS
0~1.7 MPa [247psi]
Vout 0.5~3.5V
1 2 3
0.173V/0.098 MPa [14psi]
Pressure [MPa]
Con-
=0.566 x Vout [V] - 0.283
nector
Pressure [psi]
=(0.566 x Vout [V] - 0.283) x 145
1 GND (Black)
2
Vout (White)
3
Vcc (DC5V) (Red)
4.15MPa[601psi] OFF setting
- 57 -
Check method
GB