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Installation manual

8

R(Y)P71~W1

Split System air conditioners

4PW14486-1B

C

HARGING

 

REFRIGERANT

Precaution for servicing

This unit requires additional charging of refrigerant according to the
length of pipe connected at the site. Charge the refrigerant to the
liquid pipe in its liquid state. Since R-407C is a mixed refrigerant, its
composition changes if charged in a state of gas and normal system
operation would no longer be assured.

On this model it is not necessary to charge additionaly if the piping
length 

30 m.

Over 30 m or for complete recharging, please charge based as
shown in 

figure 2

figure 3

  and 

figure 4

, where the pipe length is

respectively L1, L1+L2+L3 and L1+L2+L3+L4.

Additional charging of refrigerant

Over 30 m please, add refrigerant quantity according to following
table. 

For future servicing, mark with a circle the selected amount on the
tables below

For pair system

Table 1 Additional charging amount <unit: kg>

For twin/triple system

Please charge additionaly according to the following calculation.
(additional amount is R1+R2)

1.

G1: total length of 

Ø

9.5 mm liquid piping

G2: total length of 

Ø

6.4 mm liquid piping

2.a G1>30  m

calculate length over 30 m (=G1–30 m)
Based on this length decide R1, R2 in the table

G

30  m and G1+G2>30 m

calculate total length over 

30

 m (=G1+G2–30 m)

Based on this decide R2 in the table, R1=0

3.

Total additional charge amount
R=R1+R2 (kg)

Table 2 Length <unit: m>, additional charging amount <unit: kg>

Example 1

1

G1=L1+L2=35+7=42 m

G2=L3=5

2

Over 

30 

 m

a

G1

30=12 m

  Ø9.5 R1=1.50 kg

b

G2=5 m 

  Ø6.4 R2=0.30 kg

3

Refrigerant charge amount=R=R1+R2=1.50+0.30=1.80 kg

Example 2

1

G1=L1=5 m

G2=L2+L3+L4=17+17+20=54

2

Over 

30 

m

a

G1=5 m

  R1=0.0 kg

b

(G1+G2)

30=(5+54)

30=29 

 Ø6.4 R2=0.90 kg

3

Refrigerant charge amount=R=R1+R2=0.0+0.9=0.9 kg

Complete charging of the refrigerant (after a leak, 
etc.)

When the entire refrigerant pipe length is within 30 meters, charge
the refrigerant in accordance with the amount mentioned in the
nameplate, and when the pipe length exceeds 30 meters, the
charging amount mentioned in the nameplate and that required for
additional charging are to be totalled as the net charging amount.

When performing service on the unit requiring the
refrigerant system to be opened, refrigerant must be
evacuated according to local regulations.

On twin/triple application, piping length means sum of
main pipe and branch pipe.

Piping length is the 1 way length, gas or liquid.

Model

Connected piping length is between

Class

30-40m

40-50m

50-60m

60-70m

H/P

71 +0.50

+1.00

+1.50

+2.00

100-125

+0.75

+1.50

+2.25

+3.00

C/O

71-100-125

+0.25

+0.50

+0.75

+1.00

Model 

Piping

Ø

Length exceeding 30 m

Class

0-10

10-20

20-30

30-40

40-50

H/P

71

Main

9.5

0.50

1.00

1.50

2.00

2.50

R1

100-125

9.5

0.75

1.50

2.25

3.00

3.75

71

Branch

9.5

0.30

1.00

1.50

2.00

2.50

R1

100-125

9.5

0.75

1.50

2.25

3.00

3.75

71-100-125

6.4

0.30

0.60

0.90

1.20

1.50

R2

C/O

71-100-125

Main

9.5

0.25

0.50

0.75

1.00

1.25

R1

Branch

9.5

0.25

0.50

0.75

1.00

1.25

6.4

0.15

0.30

0.45

0.60

0.75

R2

L2=7 (Ø9.5)

71 type

100 type

L1=35 (Ø9.5)

indoor

L3=5 (Ø6.4)

35 type

outdoor heat pump

L2=17 (Ø6.4)

45 type

indoor

125 type

L1=5 (Ø9.5)

L3=17 (Ø6.4)

45 type

outdoor heat pump

indoor

L4=20 (Ø6.4)

45 type

In case of complete recharge of the refrigerant, please first
execute vacuuming. Execute this vacuuming from the
service port. Do not use the port of the stop valve for
vacuuming. Vacuuming can not be executed completely
using such port.

Position of service port:

Heat pump: Heat pump units have 2 ports on the
piping. One between the liquid receiver and the 4-way
valve and another one between the heat exchanger
and the 4-way valve.
Cooling only: On the discharge pipe

Summary of Contents for RP71L7V1

Page 1: ...INSTALLATION MANUAL RP71L7V1 RP100L7V1 RP71L7W1 RP100L7W1 RP125L7W1 RYP71L7V1 RYP100L7V1 RYP71L7W1 RYP100L7W1 RYP125L7W1 Split System air conditioners...

Page 2: ...C C D1 D1 D1 D2 D2 D2 D2 D2 E E H H L1 L1 L1 L2 L2 L2 A A B1 B1 B1 B1 B1 B1 B2 B2 B2 C C D1 D1 D1 D2 D2 D2 D2 D2 E E H H L1 L1 L1 L2 L2 L2 1 1 2 2 2 H1 L1 3 3 H1 H2 L3 L1 L2 4 4 H1 H2 L4 L1 L3 L2 5 5...

Page 3: ...7 7 8 8 NOTES...

Page 4: ...se med v ra instruktioner respektive utstyr er i overensstemmelse med f lgende standard er eller andre normgivende dokument er under forutssetning av at disse brukes i henhold til v re instrukser vast...

Page 5: ...eakage electric shocks or fire When a unit is installed in a small room it is necessary to take measures so that the leaked refrigerant amount does not exceed the limit even if it leaks As for the mea...

Page 6: ...d Places where the indoor and outdoor units piping and wiring lengths come within the allowable ranges Places where water leaking from the unit cannot cause damage to the location e g in case of a blo...

Page 7: ...following Elevate the foundation as high as possible Remove the rear suction grille to prevent snow from accumulating on the rear fins 7 If you install the unit on a building frame please install a w...

Page 8: ...tween the branch and the indoor units L2 L4 should have the same size as the indoor connections Branch see marking on figures 3 4 Suction side obstacle Obstacle is present Discharge side obstacle 1 In...

Page 9: ...equal When using existing refrigerant piping Pay attention to the following points when using existing refrigerant piping In the following situations the existing piping should not be re used and new...

Page 10: ...torque 19 6 24 5 N m Check for refrigerant leakage after tighten the cap Cautions for handling service port After the work tighten the valve cover in place Tightening torque 10 8 14 7 N m Precautions...

Page 11: ...installer Confirm that the valves are firmly closed before leak test or vacuuming Set up for vacuuming and leak test see figure 7 Procedure for leak test Leak test must satisfy EN378 2 Piping size Fl...

Page 12: ...90 kg 3 Refrigerant charge amount R R1 R2 0 0 0 9 0 9 kg Complete charging of the refrigerant after a leak etc When the entire refrigerant pipe length is within 30 meters charge the refrigerant in ac...

Page 13: ...ure the ground wire to the shut off valve attachment plate so that it does not slide 2 Secure the ground wire to the shut off valve attachment plate one more time along with the electric wiring and th...

Page 14: ...are open Be sure to close the frontside panel before operation as not doing so can cause electric shock The refrigerant pressure may not rise even if the shut off valve is opened after an air purge i...

Page 15: ...l check for voltage imbalance If the error code UF is displayed on the remote contol check the inter unit branch wiring connection Diagnosis On the remote control LCD If the machine stops due to some...

Page 16: ...PRC W1 MODEL Phase reverse circuit Q1M Q2M Thermo switch M1F M2F Q3E Earth leak detector R1T Thermistor air R2T Thermistor coil R3T Thermistor discharche R4C V1 MODEL Resistor RC Signal receiver circu...

Page 17: ...NOTES NOTES...

Page 18: ...Zandvoordestraat 300 B 8400 Oostende Belgium 4PWEN14486 1B...

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