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4. Refrigerant Tubing

15

Fig. 4.1 

The connection positions of the tube

Fig. 4.2 The 

 diameter 

tube

Capacity

(Btu/h)

Gas tube Liquid tube

36K,48K

,

55K

φ

19.05

φ

9.52

(2) As shown in Fig. 4.3, nut tightening with 2 spanners.

Fig. 4.3 Nut tightening torque 

tube

(3) After finishing connecting the refrigerant 

s, keep 

it warm with the insulation material.

Tube size

φ

6.35mm

φ

9.52mm

φ

12.7mm

φ

15.88mm

φ

19.05mm

Torque

N

·

m

20

40

60

80

100

ub

Fig. 4.4 T

ing insulation procedure

Clamp(attached)

Insulation

 (attached)

Refrigerant tube

(field supplied)

Side of the 
indoor unit

Insulation

(field supplied)

Installation and Maintenance

DANGER

·

tube

The 

 go through the hole with the seal.

Protected with the tape or plug.

Do not put the pipes on the 
floor directly.

CAUTION

·

tube

Do not put the 

s on the floor directly.

24K

φ

15.88

φ

9.52

Drain tube

       18K

φ

12

.

7

φ

6

.

35

De25

De25

De25

When the tube is routed through the back.
Cut the removed top cover, and install to the rear 
panel instead of rear cover.

Gas piping

Liquid piping

Drain piping

     (right)

Drain piping

     (left)

Use the R410A refrigerant. When carrying on the 
leakage check and test, do not mix in the oxygen, the 
acetylene and flammable and the reactive gas, these 
gases are quite dangerous, and may possibly cause 
explosion. It is suggested that the compressed air, 
the nitrogen or the refrigerant is used to perform 
these experiments.

4.1 The Tube Material

(1) Prepare the copper Tube on the spot.
(2) Choose dustless, non-humid, clean copper tube. 
Before installing the tube, use nitrogen or dry air to 
blow away the tube dust and impurity.
(3) Choose the copper tube according to Fig. 4.2.

4.2 Tubing

 

connection

(1) The connection positions of the tube are shown in 
Fig. 4.1 and Fig. 4.2.

unit: (mm)

The tube can be connected from three different 
directions. (rear, right, top)

.

When

 

the tube is routed through the back.

If the bracket is removed, tubing work will become 
easier.
After tubing, reinstall the removed bracket.

AUV-18HR4SSA1
AUV-24HR4SFA1
AUV-36HR6SDB1
AUV-48HR6SEC1
AUV-60HR6SPC1

RPFC-2.0UNZ1NH
RPFC-3.0UNZ1NH
RPFC-4.0UNZ1NH
RPFC-6.0UNZ1NH
RPFC-6.5UNZ1NH

YFGN18BZNRZUH1
YFGN24BZNRZUH1
YFGN36BZMRZUH1
YFGN48BZMRZUH1
YFGN55BZMRZUH1

RAS-2.0UNZGNH1
RAS-3.0UNZGNH1
RAS-4.0UNZGMH1
RAS-6.0UNZGMH1
RAS-6.5UNZGMH1

Blowing out the surviwal heating air

When

 

stoping

 

the

 

air

 

conditioner

 

in

 

normal

 

operation

the

 

fan

 

motor

 

would

 

run

 

with

 

low

 

speed

 

for

 

a

 

while

 

to

 

blow

     

out

 

the

 

residual

 

heating

 

air

.

Summary of Contents for YFGN24BZNRZUH1

Page 1: ...ir Conditioner R 410A 50Hz T1 Heat Pump R 410A 50Hz T1 Cooling Only Model YFGN18BZNRZUH1 YFGN24BZNRZUH1 YFGN36BZMRZUH1 YFGN48BZMRZUH1 YFGN55BZMRZUH1 Model YFFN18BZNRZTH1 YFFN24BZNRZTH1 YFFN36BZMRZTH1...

Page 2: ...t Tubing 15 4 1 The Tubing Material 15 4 2 Tubing Connection 15 16 5 Drain Tubing 6 Electrical wiring 17 7 Attaching the Air Return Grille 17 8 The Installation of the Outdoor Unit 18 8 18 1 Installat...

Page 3: ...rature 25 60 Humidity 30 80 Heating and electric heating function are not available for cooling only models The symbol refers to a hazard which can result in severe personal injury or death The symbol...

Page 4: ...duct is installed is supposed to have the independent leakage protective device and the electric current over load protection device which are provided for this product If not it will caus an eleectri...

Page 5: ...ribed in this instruction manual Never use gasoline or other inflammable gas near the air conditioner which will cause fire hazards When the air conditioner operation is abnormal such as burnt smell d...

Page 6: ...ontal Louver 4 Composition of the Air conditioner Indoor Unit Outdoor Unit 48K 55K 18K 24K 36K Notes Figures in the manual are only simple representation of the appliance it may not comply with the ap...

Page 7: ...roller or wireless remote controller It is used for power ON OFF setting the operating mode temperature fan speed and other functions There are different types of remote controllers which can be used...

Page 8: ...nless you use remote control switch to turn off the unit all indoor unit can be turned off by user The fan of the indoor unit will never stop running in cooling operation It remains running even if th...

Page 9: ...long period of time Clean the air filter and panels or allow a good ventilation Sound from Deforming Parts Steam from Outdoor Heat Exchanger When the cooling operation continues for a long period of...

Page 10: ...nit Terminal Terminal SI L N SI L N Power connecting cord N R S T 36K 48K 55K Outdoor unit Indoor unit Terminal Terminal N N 1L 3L 2L 1L 3L 2L Power connecting cord N L 18K 24K Gas piping Wide service...

Page 11: ...es other than the specified refrigerant R410A such as air Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise or rupture resulting in injury If a...

Page 12: ...8 9 10 11 12 13 14 Tool Knife or wire stripper Gradienter Hammer Churn drill Tube expander Inner hexagon spanner Tape measure 3 1 Before installation When moving the unit during or after unpacking ma...

Page 13: ...t Piping Connection For Drain Tube Connection For Joint Socket Connection For Drain Hose Connection For Drain Hose Cover 1 1 1 1 2 2 1 10 8 1 For Drain Hose Connection 1 For Drain Hose And Piping Conn...

Page 14: ...more than 6 m to avoid malfunction due to cross communication The air path is not blocked Condensate can drain properly The ceiling is strong enough to bear the weight of the indoor unit Sufficient c...

Page 15: ...outlet Right outlet Rear outlet Drain outlet rear right Drain outlet rear left Drain outlet right Drain outlet left Fig 3 3 3 Fig 3 3 4 Fig 3 3 5 1 Remove the air return grille Slide stoppers 4 place...

Page 16: ...wo screws M5 1 each on the left and right sides Floor standing type installation 1 Select the suspension bolt locations and the tube hole location Use enclosed paper pattern as a reference and drill t...

Page 17: ...outed through the back Cut the removed top cover and install to the rear panel instead of rear cover Gas piping Liquid piping Drain piping right Drain piping left Use the R410A refrigerant When carryi...

Page 18: ...eas below should be insulated because condensation may form there causing water to leak Drain ing passing indoors tub Drain sockets Referring the figure below insulate the drain socket and drain hose...

Page 19: ...grille When clamping the wiring use the included clamping material as shown in the Fig 6 1 to prevent outside pressure being exerted on the wiring connections and clamp firmly When doing the wiring m...

Page 20: ...ew at least 4 About 40cm About 10cm Indoor unit Tube length L Height difference H Outdoor unit 20 m 15 m 15 g m 30 m 15 m 35 g m 30 m 20 m 35 g m 50 m 30 m 35 g m Max Tube length L Model 24K 36K 48K 5...

Page 21: ...eat insulation effect Also be sure the condensed drain hose splits away from bundle and drips clear of the unit and the tubing The two refrigerant tubes and electrical wire if local codes permit shoul...

Page 22: ...se contact local technical service center of our company for further information Narrow tube Hex wrench Wide tube Service valve Bonnet of service valve Bonnet of narrow valve Bonnet of wide valve Indo...

Page 23: ...ard EN60335 1 Use the wires which are not lighter than the ordinary polychloroprene sheathed flexible cord code designation H07RN F When connecting the terminal block using flexible cord make sure to...

Page 24: ...nt possible harm to the environment or human health from uncontrolled waste disposal recycle it responsibly to promote the sustainable reuse of material resources To return your used device please use...

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