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36K,42K,48K
55K

,

4.Refrigerant Pipe

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 Pipe Material

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

4.2 Piping connection

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

unit:(mm)

14

Fig. 4.1 The connection positions of the tube

Capacity

(Btu/h)

Gas pipe

Liquid pipe

φ

19.05

φ

9.52

(2) As shown in Fig. 4.3, screw up the nuts with 2 spanners.

Fig. 4.3 Screw up the nut torque 

(3) After finishing connecting the refrigerant pipes, keep 
it warm with the insulation material.

φ

6.35mm

φ

9.52mm

φ

12.7mm

φ

15.88mm

φ

19.05mm

Tube size

20

40

60

80

100

Torque

N m

Fig. 4.4 Piping insulation procedure

Clamp(attached)

Insulation (attached)

Refrigerant pipe

(field supplied)

Side of the 
indoor unit

Insulation

(

)

field supplied

Installation and Maintenance

DANGER

·

The pipe go through the hole with the seal.

Protected with the tape or plug.

Do not put the pipes on the 
floor directly.

CAUTION

·

Do not put the pipes on the floor directly.

24K

φ

15.88

φ

9.52

Drain pipe

18K

φ

12

.

7

φ

6

.

35

De25

De25

De25

Fig. 4.2 The pipe diameter 

The pipe can be connected from three different 
directions.(rear, right, top).
When the pipe is routed through the back.
If the bracket is removed, piping work will become 
easier.
After piping, reinstall the removed bracket.

When the pipe 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)

.

Содержание YFKN18BZNREUH1

Страница 1: ...er R 410A 50Hz Heat Pump R 410A 50Hz Cooling Only Model YFKN42BZMREUH1 YFKN48BZMREUH1 YFKN55BZMREUH1 YFKN18BZNREUH1 YFKN24BZNREUH1 YFKN36BZNREUH1 Model YFJN18BZNRETH1 YFJN24BZNRETH1 YFJN36BZNRETH1 YFJ...

Страница 2: ...erant Piping 14 4 1 The Piping Material 14 4 2 Piping Connection 14 5 Drain Piping 15 6 Electrical wiring 16 7 Attaching the Air Return Grille 16 8 The Installation of the Outdoor Unit 17 8 1 Installa...

Страница 3: ...damage It refers to the remarks and instruction to the operation maintenance and service DANGER WARNING Alert Symbols CAUTION 1 Contents NOTE This air conditioner has been designed for the following t...

Страница 4: ...ing the air conditioner the main power switch the of air conditioner must be cut off immediately and the agent must be contacted If the supply cord is damaged it must be replaced by the factory or its...

Страница 5: ...Intake Inside of Horizontal Louver 3 Composition of the Air conditioner Indoor Unit Outdoor Unit Notes Figures in the manual are only simple representation of the appliance it may not comply with the...

Страница 6: ...cy switch It lights on during operation It lights off all when setting SLEEP mode Run indicator Red Wired remote controller Wireless remote controller Wire remote controller optional You can control t...

Страница 7: ...rned off by user The fan of the indoor unit will never stop running in cooling operation It remains running even if the compressor stops working Heating capacity depends on external factors as outdoor...

Страница 8: ...bs 4 then remove the holding screws 4 or 6 as indicated by the arrow marks Step2 Open the air return grille to an angle of more than 45 and take out the air filter from the air inlet grille by holding...

Страница 9: ...4 way valve Heat exchanger Liquid piping Heating cycle Cooling cycle INDOOR UNIT OUTDOOR UNIT Heat exchanger EEV Service valve Outdoor unit Indoor unit Terminal Terminal SI L N SI L N Power connecting...

Страница 10: ...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...

Страница 11: ...8 9 10 11 12 13 14 Tool Knife or wire stripper Tube expander Inner hexagon spanner Tape measure Gradienter Hammer Churn drill 3 1 Before installation Unit type Power supply specification When moving t...

Страница 12: ...anging And Adjustment For Pipe Cover Fixing For Refrigerant Piping Connection For Drain Pipe Connection For Joint Socket Connection For Drain Hose Connection For Drain Hose Cover 1 1 1 1 2 2 1 10 8 1...

Страница 13: ...rain properly The ceiling is strong enough to bear the weight of the indoor unit Sufficient clearance for maintenance and servicing Piping between the indoor and outdoor units is within the allowable...

Страница 14: ...let 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 Slide stoppers 4 places of the catches then remove the sc...

Страница 15: ...nclosed paper pattern as a reference and drill the holes for the suspension bolts and pipe Note Decide the locations based on the direct measurements ii After the locations are properly placed the pap...

Страница 16: ...panners Fig 4 3 Screw up the nut torque 3 After finishing connecting the refrigerant pipes keep it warm with the insulation material 6 35mm 9 52mm 12 7mm 15 88mm 19 05mm Tube size 20 40 60 80 100 Torq...

Страница 17: ...ld be insulated because condensation may form there causing water to leak Drain piping passing indoors Drain sockets Referring the figure below insulate the drain socket and drain hose using the inclu...

Страница 18: ...n 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...

Страница 19: ...d onto the wall make sure that the wall and the supporting rack is strong enough to hold the weight of the appliance Release the setscrews of the electric cover remove the electric cover If the valve...

Страница 20: ...eat insulation effect Also be sure the condensed drain hose splits away from bundle and drips clear of the unit and the piping The two refrigerant tubes and electrical wire if local codes permit shoul...

Страница 21: ...cal technical service center of our company for further information Narrow pipe Hex wrench Wide pipe Service valve Bonnet of service valve Bonnet of narrow valve Bonnet of wide valve Indoor unit Outdo...

Страница 22: ...ng flexible cord make sure to use the round crimp style terminal for connection to the power supply terminal block Place the round crimp style terminals on the wires up to the covered part and secure...

Страница 23: ...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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