Principal Parts And Functions - Mitsubishi Electric PU(H)Y-P250YGM-A Service Handbook

[ VI Refrigerant Circuit ]

[2] Principal Parts and Functions

1. Outdoor unit
Part Symbols
name (functions)
Compres- MC1
sor MC2
High 63HS
pressure
sensor
Low 63LS
pressure
sensor
Pressure 63H1
switch 63H2
Notes Usage
Adjusts the amount of circulating
refrigerant by adjusting the oper-
ating frequency based on the op-
erating pressure data
1. Detects high pressure
2. Regulates frequency and pro-
vides high-pressure protection
1. Detects low pressure
2. Provides low-pressure protec-
tion
63H2 is 1. Detects high pressure
available 2. Provides high-pressure pro-
only on tection
P500
model
- 68 -
Specifications
Low-pressure shell
scroll compressor
Wirewound resistance
20°C : 0.583 ohm
63HS
Pressure
0~4.15 MPa
1 2 3
Vout 0.5~3.5V
0.071V/0.098 MPa
Con-
Pressure [MPa]
nector
=1.38 x Vout [V]-0.69
GND (Black)
1
2
Vout (White)
3
Vcc (DC5V) (Red)
63LS
Pressure
0~1.7 MPa
1 2 3
Vout 0.5~3.5V
Con-
0.173V/0.098 MPa
Pressure [MPa]
nector
=0.566 x Vout [V] - 0.283
GND (Black)
1
2
Vout (White)
3
Vcc (DC5V) (Red)
4.15MPa OFF setting
Check
method