Functions Of The Major Components Of Outdoor Unit - Mitsubishi Electric R410A 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
pressure
sensor
Low 63LS
pressure
sensor
Pressure 63H1
switch
Power Transformer
supply
trans-
former
HWE14080
Notes Usage
Adjusts the amount of cir-
culating refrigerant by ad-
justing the operating
frequency based on the op-
erating pressure data
1) Detects high pressure
2) Regulates frequency
and provides high-
pressure protection
1) Detects low pressure
2) Provides low-pressure
protection
1) Detects high pressure
2) Provides high-pres-
sure protection
YLMU Decreases the power sup-
only ply voltage (460V) supplied
to the circuit board
- 57 -
Specifications
P72, 96 models
Low-pressure shell scroll com-
pressor
Wirewound resistance
20°C[68°F] :
0.26 (TLMU)
0.845 (YLMU)
P120, 144 models
Low-pressure shell scroll com-
pressor
Wirewound resistance
20°C[68°F] :
0.124 (TLMU)
0.431 (YLMU)
P168 model
Low-pressure shell scroll com-
pressor
Wirewound resistance
20°C[68°F] :
0.085 (TLMU)
0.297 (YLMU)
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
1 GND (Black)
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
Primary rated voltage:
460V, 50/60Hz
Secondary rated voltage:
229V
(No-load voltage)
Check method
GB