Service Information
MULTI Air Conditioner
Publication No. : PWE02040
Publication Date : Sep, 2002
Mitsubishi Electric Co.
AC & R System Works
Title: 4-way valve specifications change
Target Model name: Y, R2, WR2, SuperY
1. Contents
The 4-way valve specifications have been changed for quality improvement. (The 4-way valve
switch was defective before and after defrosting.)
Table 1. Change contents of 4-way valve unit specifications
Old specifications New specifications
Maker Manufactured by Ranco Japan Manufactured by Saginomiya Seisakusho
4-way valve Model VH60100 Model CHV0713
Solenoid coil Model LB64 Model CHV-01A
2. Introduction time
Introduction since September, 2000 (Serial No. 09W***** and following)
3. Identification method
• The model name is not changed with the change in specifications.
• The valve itself is interchangeable with the main body size and connection pipe size.
Identification is unnecessary.
• Although it is necessary to identify the solenoid coil according to the specifications of the
connected 4-way valve, both the new and old solenoid coils are packed together as service
parts.
4. Service method
The specifications of the service parts are changed.
Table 4-1. Change contents of service parts specifications
Old part New part
Maker Manufactured by
Ranco Japan
4-way valve
body
Solenoid
coil
Refer to the next page for information about the service method.
VH60100 R61Y01403 CHV0713(Main body) +
LB64 R61G30242 CHV-01A(Solenoid coil) + 2 units
Part code Manufactured by Saginomiya
Refer to the next page for target model name.
Part code
Seisakusho
R61Y02154
CHV-01A(Solenoid coil)
R61Y10242
of LB64
(Solenoid coil) are packed
together
1/2
Service method information
Service pattern
Problem
part
4-way
valve
solenoid
coil
<Cautionary items during parts replacement>
Old unit (Valve/Solenoid coil: manufactured
by Ranco Japan)
Replaced with the 4-way valve manufactured
by Saginomiya Seisakusho.
* The main body size and pipe connection
section are interchangeable.
* It is also necessary to replace the
solenoid coil when changing the valve.
• If the solenoid coil alone is replaced.
Since two coils from different makers are
packed together, check the valve maker
and use the solenoid coil from the same
maker.
• If it is replaced together with the 4-way
valve.
• Replaced with the solenoid coil
manufactured by Saginomiya Seisakusho.
If replacing the 4-way valve, then replace the valve with the Saginomiya 4-way valve.
If replacing the 4-way valve on the Ranco Japan 4-way valve unit, then also replace the solenoid coil with the Saginomiya solenoid coil.
New unit (Valve/Solenoid coil:
manufactured by Saginomiya
Seisakusho)
←
• If the solenoid coil alone is
replaced.
Since two solenoid coils from
different makers are packed
together, check the valve maker
and use the solenoid coil from
the same maker.
Countermeasure
• If only the solenoid coil is replaced on the Ranco Japan
4-way valve unit, the old service part solenoid coil
manufactured by Ranco Japan can be used.
• If the coil is replaced together with the 4-way valve on the
Ranco Japan 4-way valve unit, then use the new
Saginomiya solenoid coil service part. (2 solenoid coils
from different makers are packed together.)
• If only the solenoid coil is replaced on the Saginomiya
4-way valve unit, then use the new Saginomiya coil
service part. (2 solenoid coils from different makers are
packed together.)
Target models
Model HP R22 R407
Y 8HP PUHY-200YMF-B, PUHY-200YMC
PUHY-200TM
10HP PUHY-250YMF-B, PUHY-250YMC
PUHY-250TM
16HP PUHY-400YMF-B, PUHY-400YMC PUHY-P400YMF-B
20HP PUHY-500YMF-B, PUHY-500YMC PUHY-P500YMF-B
R2 8HP PURY-200YMF-B PURY-P200YMF-B
10HP PURY-250YMF-B PURY-P250YMF-B
SuperY Constant-speed unit 8HP PUHN-200YMF-B, PUHN-200YMC PUHN-P200YMF-B
10HP PUHN-250YMF-B, PUHN-250YMC PUHN-P250YMF-B
WR2 8HP PQRY-200YMF-B PQRY-P200YMF-B
10HP PQRY-250YMF-B PQRY-P250YMF-B
PUHY-P200YMF-B
PUHY-P250YMF-B
2/2