Mitsubishi PURY-RP200YJM-B, PURY-RP200YJM-BS, PURY-RP300YJM-B, PURY-RP250YJM-BS, PURY-RP250YJM-B Instruction Manual

For use with R410A

GBDFEIP

MINERAL OIL COLLECTION (REFRIGERANT OIL RECOVERY) INSTRUCTIONS MANUAL

ANLEITUNGSHANDBUCH FÜR DIE MINERALÖLSAMMLUNG
(KÄLTEMITTELÖLENTNAHME)

MANUEL D’INSTRUCTIONS POUR LA COLLECTE D’HUILE MINÉRALE
(RÉCUPÉRATION DE L’HUILE FRIGORIFIQUE)

MANUAL DE INSTRUCCIONES PARA LA RECOGIDA DE ACEITE MINERAL
(RECUPERACIÓN DE ACEITE REFRIGERANTE)

RACCOLTA DELL ’OLIO MINERALE (RECUPERO DELL’OLIO REFRIGERANTE)
MANUALE DI ISTRUZIONI

MANUAL DE INSTRUÇÕES DE RECOLHA DE ÓLEO MINERAL
(RECUPERAÇÃO DO ÓLEO REFRIGERANTE)

Air Conditioners For Building Application
Outdoor Unit

PURY-RP200·250·300YJM-B(-BS)

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GB

1. Unit Components

Figure 1 Top view of the refrigerant pipes inside an outdoor unit

CJ5

CJ5

CJ4

CJ2 CJ1

B

C

A

I

H

J

G

F

D

CJ4

CJ3

E

Figure 2 Valve types allocations

A: Refrigerant charge port (for automatic

charging only)

B: Check joint on the low-pressure side

A port through which additional refrigerant
is charged after the completion of
refrigerant oil recovery operation

C: Service port on the high-pressure valve

Connecting port to the refrigerant circuit

• Evacuation port (high-pressure side)

• A port through which refrigerant for the
indoor units is charged

D: Service port on the low-pressure valve

Connecting port to the refrigerant circuit

• Evacuation port (low-pressure side)

• A port through which refrigerant for the
indoor units is charged

E: A valve to be closed after the completion

of refrigerant oil recovery operation (BV3)
(Be sure to close this valve after the
completion of refrigerant oil recovery
operation.)

F: High-pressure valve
G: Low-pressure valve
H:O/T
I:ACC
J:COMP

CJ3: Refrigerant charge port
CJ4: Oil sampling port
CJ5: Refrigerant oil discharge port

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2. Refrigerant Oil Recovery Operation Flow

2.1 Refrigerant oil recovery operation monitor display

(*1) The initial remaining time that indicates the refrigerant oil recovery is 80. A countdown will start on step 3 in the cooling mode.

The countdown does not include the time for checking the refrigerant charge amount.

(*2) S-1: Refrigerant oil recovery complete, S-0: Refrigerant oil recovery incomplete,

r-1: Refrigerant charge adjustment complete, r-0: Refrigerant charge adjustment incomplete.

1. How to read the LED on the service monitor
Units' operation status can be monitored on the LED display by setting the dipswitches SW1-1 through 1-10 on the MAIN board of the
outdoor units.
Four 7-segment LEDs are used to display numerical values, flags, and alphabets to display various information.

The LEDs display such information as pressure and temperature in numerical values and operating conditions and the ON/OFF status of
solenoid valve as flags.

● Display of numerical values

Example:When the pressure sensor reads 18.8 kg/cm

2

G (Item No. 58)

* The unit of pressure is in kg/cm

2

G.

* Use the following conversion formula to convert the displayed value into a value in SI unit (MPa).

SI unit (MPa) = Displayed value (kg/cm

2

G) 0.098

● Flag display (Each set of two lines in vertical alignment indicates a flag.)

Example:Outdoor unit in the 3-minute restart delay mode. (Item No. 14)

2. Table of items that can be monitored on the LED on the outdoor unit circuit board

No

SW1

Display content

LED display

Notes

12345678910

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 LD9

LD10
580101110000High pressure (kgf/cm2G) -99.9 to 999.9
591101110000Low pressure (kgf/cm

2

G) -99.9 to 999.9

600011110000

Intermediate pressure
(kgf/cm

2

G)

-99.9 to 999.9

45 1 0 1 1 0 1 0 0 0 0 Discharge temperature (°C) -99.9 to 999.9

1311100000100

Refrigerant oil recovery operation
steps

rEP

 steps

Reversed

display

1220101111000

Refrigerant oil recovery
remaining time

(*1)

0 to 9999

1200001111000

Refrigerant oil recovery
completion indicator flag
Refrigerant charge adjustment
completion indicator flag

S-1 (0)

 r-1 (0)

(*2)

Reversed

display

7SEG LED

LD1 LD2 LD3 LD4

LD5

LD6 LD7 LD8

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2.2 Procedures for refrigerant oil recovery

1Evacuating the existing pipes, and ensuring air tightness

Charge airtight gas through the service port on both the high-pressure and low-pressure valves. The air tightness should be

4.15 MPa. After checking the air tightness, evacuate the air through the service port on both the high-pressure and low-pressure valves.

2Refrigerant charging

•If the length or diameter of the refrigerant pipe is unknown
Charge the required amount of refrigerant (indoor units + BC controllers) through both high-pressure and low-pressure service port valves.

•When refrigerant pipe diameter and length are already known
Charge the required amount of refrigerant (indoor units + BC controllers + pipes) through both the high-pressure and low-pressure service port
valves. See the table below for the required amount of refrigerant for the indoor units and BC controllers. To calculate the required amount of
refrigerant charged for the pipes, refer to 10.1. “Calculation of additional refrigerant charge” in the installation manual on the CD-ROM.
If there is excess refrigerant that cannot be charged, use it during oil recovery operation at step 4 (cooling operation).

* Af ter charging the required amount of refrigerant to the existing pipes, open the valve so that the pressure in the existing pipes and outdoor unit

are equal. (Refer to Procedure 3.) Do not open the valve on the outdoor unit when the existing pipes are under vacuum. Doing so may cause
the refrigerant that is dissolved in the refrigerant oil in the compressor to form and cause some oil to migrate to the existing pipes, resulting in
insufficient lubrication.

Procedure 1

High-pressure valve

Low-pressure valve

Procedure 2

High-pressure valve

Low-pressure valve

Total capacity of

connected indoor units

Charged amount (kg)

- 80 2.0

81 - 160 2.5
161 - 330 3.0
331 - 390 3.5
391 - 480 4.5

Total outdoor unit Model

Charged amount per

BC controller

(Standard / Main) (kg)
P200 2.0
P250

3.0

P300

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3Opening the valves

Open both the high-pressure and low-pressure valves.

Use a hexagonal wrench to open the valves. Refer to the table below for the proper wrench size.

4Connecting the refrigerant cylinder(s)

If the required amount of refrigerant is not charged, disconnect the charging hose connected to the refrigerant cylinder from the
service port on high-pressure and low-pressure side, and connect the charging hose to the refrigerant charge port CJ3
(only for automatic charging).
* Check that each cylinder has the correct amount of refrigerant.
* If the amount of refrigerant is insufficient, the units may stop during refrigerant oil recovery or it may take longer than usual to complete a test

run.

5Setting the unit address and checking for proper system operation

Set the unit address, turn on the power, and check for proper operation of the system.
* If an attempt is made to operate the outdoor unit before the refrigerant oil recovery operation is complete, an error code 7116 will appear on the

remote controller. This does not indicate a malfunction. Wait for the oil recovery operation to be completed. The error code 7116 will go off upon
completion of oil recovery operation.

Procedure 3

A

Hexagonal wrench size

A

High-

pressure

Low-

pressure

8, 10, 12 HP 8 mm 8 mm

High-pressure valve

Low-pressure valve

Procedure 4

Refrigerant charge port (CJ3)

Procedure 5

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6Refrigerant oil recovery operation

Set the dipswitches 3-1 and 4-8 to ON in that order. The compressor turns on, and oil recovery operation starts.

The refrigerant oil recovery operation is explained in the next page. Wait for the operation to be automatically completed.
* If there was excess refrigerant that had not been charged at “2Refrigerant charging”, charge it during oil recovery operation at step 4 (cooling

operation). After charging the refrigerant, close the valve on the refrigerant cylinder. (Even when the required amount of refrigerant is already

charged, refrigerant charge is automatically adjusted.)
* If the cylinder runs out of refrigerant during the refrigerant oil recovery operation, continue the operation and replace the cylinder.
* If the cumulative oil recovery operation hour is more than three and a half hours, turn the dipswitches 4-8 and 3-1 to OFF to stop the operation

and turn the dipswitches 4-7 on the units (OC) to OFF.

Wait for the operation to be automatically completed.
* Refer to the table at right for the maximum amount of refrigerant charge.

Do not exceed the maximum amount.

If the refrigerant oil recovery operation does not finish after the maximum

amount of refrigerant is charged, close the valve on refrigerant cylinder, and wait

for the operation to be completed automatically.
* If the cylinder runs out of refrigerant during the refrigerant oil recovery operation,

continue the operation and replace the cylinder.

I

If more than the amount of refrigerant that you calculated is charged into the system in auto-charge mode, then there is no problem if you wish to
close the cylinder valve while the unit is operating. The unit will stop operating of its own accord.

If the length or diameter of the refrigerant pipe is known, please make note of the following.

Procedure 6

Procedure 7

Outdoor unit capacity and the maximum

amount of refrigerant charge

Outdoor unit

capacity

Maximum amount of refrigerant charge

(except for the indoor units and

BC controllers) (kg)

RP200, 250, 300 20.0

SW5

SW4 SW2

SW1SW3

OFF ON

1

4

2
3

5
6

8

7
9

10

SW3

SW3-1

Address switches

Close the panel at
bottom front of the
unit.

LED monitor

Each dipswitch has 1 to 10 switches from
the top. (OFF-left, ON-right)
(e.g., SW3-1 is the top switch of SW3.
The figure at left indicates that only SW3-1
is set to ON.)

Dipswitches

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7Check for successful completion of the refrigerant oil recovery operation.

Turn the dipswitches 1-4, 1-5, 1-6, and 1-7 to ON to verify that the refrigerant oil recovery operation is completed. “S-1” or “r-1” on

the outdoor unit’s LED indicates a successful completion.

“S-1” “r-1”: The refrigerant oil recovery operation is successfully completed. Go to the next procedure.
“S-1” “r-0”: The refrigerant charge adjustment is not completed, but regular air conditioning operation can be started. If there was excess

refrigerant that had not been charged, charge it through the low-pressure check joint (CJ2) during the air conditioning operation.

“S-0” “r-1”: The refrigerant oil recovery operation is not completed. To restart the refrigerant oil recovery operation, set the dipswitches 3-1 and

4-8 to ON in that order.

“S-0” “r-0”: The refrigerant oil recovery operation is not completed. To restart the refrigerant oil recovery operation, set the dipswitches 3-1 and

4-8 to ON in that order.

8Disconnecting the cylinder

After completing the oil recovery operation, close the valve on the cylinder, and disconnect the cylinder within five minutes.

9Recording the amount of refrigerant that was charged

Write on the control box panel the amount of refrigerant charged.

0Closing the valve on the connecting port to the refrigerant circuit

Close BV3 completely. The refrigerant oil recovered from the existing pipes is sealed in an oil recovery vessel.

Procedure 8

LED

Procedure 9

Procedure 10

Procedure 11

SO OS

Compressor side

Oil-recovery side
<Factory setting>

<After the oil-recovery test run>

A A

B

C

Turn the valve clockwise by 90 degrees.
* Use a tool if necessary.

A Lever
B (Cap tightening torque: 20-25N•m

(200-250 kg•cm))

C Rotation direction

This product is designed and intended for use in the residential,

commercial and light-industrial environment.

The product at hand is
based on the following EU
regulations:

• Low Voltage Directive 2006/95/EC

• Electromagnetic Compatibility Directive
2004/108/EC

• Pressure Equipment Directive 97/23/EC

Please be sure to put the contact address/telephone number on

this manual before handing it to the customer.

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Authorized representative in EU:MITSUBISHI ELECTRIC EUROPE B.V.

HARMAN HOUSE, 1 GEORGE STAREET, UXBRIDGE, MIDDLESEX UB8 1QQ, U.K.

WT06218X01