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 Page 19 

Wiring

TAKE NOTE OF FUSE SPECIFICATIONS

The air conditioner’s printed circuit board (PCB) 

is designed with a fuse that provides overcurrent 

protection. The specifications of the fuse are 

printed on the circuit board, examples of such 

are T5A/250VAC and T10A/250VAC.

Wiring

Safety Precautions

 WARNING

  Disconnect the power supply before 

working on the unit. 

  All wiring must be performed according 

to local and national regulations.

  Wiring must be done by a qualified

technician. Improper connections may

cause electrical malfunction, injury, or fire.

  An independent circuit and single outlet 

must be used for this unit. 

DO NOT 

plug another appliance or 

charger into the same outlet. If the cannot 

handle the load or there is a defect in the 

wiring, it can lead to shock, fire, and unit 

and property damage. 

 

  Connect the power cable to the terminals 

and fasten it with a clamp. An insecure 

connection 

may cause �

re. 

  Make sure that all wiring is done correctly 

and the control board cover is properly 

installed. Failure to do so can cause 

overheating at the connection 

points, �

re, 

and electrical shock.  

  Ensure that main power supply connection

is made through a switch that disconnects

all poles, with contact gap of at least 3mm

(0.118”).

• 

DO NOT 

modify the length of the power 

cord or use an extension cord.

 CAUTION

  Connect the outdoor wires before 

connecting theindoor wires.

  Make sure you ground the unit. The

grounding wire should be located away

from gas pipes, water pipes, lightning rods,

telephone wires or other grounding wires.

Improper grounding may cause electrical

shock. 

• 

DO NOT 

connect the unit to the power 

source until all wiring and piping is 

completed.

  

  Make sure that you do not cross your

electrical wiring with your signal wiring.

This may cause distortion and interference.

Follow these instructions to prevent distortion 

when the compressor starts: 

  The unit must be connected to the main 

outlet. Normally, the power supply must 

have a low output impedance of 32 ohms.  

  No other equipment should be connected 

to the same power circuit.

Outdoor Unit Wiring

 WARNING

Before performing any electrical or wiring work, 

turn off the main power to the system. 

1. Prepare the cable for connection

a. Y

ou must �rst choose the right cable size 

before preparing it for connection. Be sure 

to use H07RN-F cables.  

Table 8.1: Minimum Cross-Sectional Area 

of Power and Signal Cables in North
                        America

Rated Current of 

 

Appliance (A)

AWG

 7

18

7 - 13

16

13 - 18

14

18 - 25

12

25 - 30

10

8

Summary of Contents for 42/38SHDV095

Page 1: ...ting your new air conditioning unit Make sure to save this manual for future reference This manual only describes the installation of outdoor unit When installing the indoor unit refer to the installa...

Page 2: ...structions 08 Safety Precautions 05 Outdoor Unit Installation a Outdoor Unit Installation Instructions b Outdoor Unit T c Notes on Drilling Hole in Wall Drainpipe Installation Table of Contents Instal...

Page 3: ...16 16 Page 3 Refrigerant Piping Connection A Notes on Pipe Length and Elevation B Refrigerant Piping Connection Instructions Wiring a Outdoor Unit Wiring b Indoor Unit Wiring Air Evacuation a Evacuati...

Page 4: ...ail QUANTITY SHAPE NAME Soundproof insulation sheath 2 1 1 1 Tubing Fittings Others Installation manual Component of display control unit some models 1 Owner s manual Drainpipe Fittings for cooling he...

Page 5: ...rong winds typhoons and earthquakes that might affect your unit and locate it accordingly Failure to do so could cause the equipment to fail After installation ensure there are no refrigerant leaks an...

Page 6: ...3 4 5 MC MC 6 7 Install the indoor unit Page 7 INSTALLATION ORDER Install the outdoor unit Page 13 Install the drainpipe Page 16 Evacuate the refrigeration system Page 25 Connect the wires Page 21 Con...

Page 7: ...following requirements Enough room for installation and maintenance Enough room for the connecting pipe and drainpipe The ceiling is horizontal and its structure can sustain the weight of the indoor u...

Page 8: ...he following diagrams to locate the four positioning screw bolt holes on the ceiling Be sure to mark the paces where you will drill ceiling hook holes This unit has been installed air intake pipe flan...

Page 9: ...same size before moving on 2 Install and fit pipes and wires after you have finished installing the main body When choosing where to start determine the direction of the pipes to be drawn out Especial...

Page 10: ...9 x 10 screw 4 Connect the duct according to the following diagram Canvas tie in Canvas tie in Air outlet Isolation booth Isolation booth checking orifice Air inlet Air dust filter 1 Install the dust...

Page 11: ...length between the outdoor and indoor unit may not exceed the maximum allowable pipe length If possible DO NOT install the unit where it is exposed to direct sunlight If possible make sure the unit i...

Page 12: ...n Table 5 1 Length Specifications of Split Type Outdoor Split Type Outdoor Unit Refer to Fig 5 4 5 5 5 6 5 10 and Table 5 1 Fig 5 6 Fig 5 5 A B D W H W H Fig 5 4 Model Unit mm W D H A B 946 410 810 67...

Page 13: ...ter from the unit during heating mode NOTE Make sure the water drains to a safe location where it will not cause water damage or a slipping hazard Seal Drain joint A B Base pan hole of outdoor unit Se...

Page 14: ...ensation which could lead to water damage If the drainpipe is bent or installed incorrectly water may leak and cause a water level switch malfunction In HEAT mode the outdoor unit will discharge water...

Page 15: ...roper water drainage See Fig 6 5 Place the protective wall cuff in the hole This protects the edges of the hole and will help seal it when you finish the installation process Wall Indoor Outdoor 12mm...

Page 16: ...poor operating capacity high pressure in the refrigeration cycle explosion or injury Ventilate the area immediately if there is refrigerant leakage during the installation Leaked refrigerant gas is bo...

Page 17: ...he pipe is cut at a perfect 90 angle Refer to Fig 7 1 for examples of bad cuts Oblique Rough Warped 90 Fig 7 1 Step 2 Remove burrs Burrs can affect the air tight seal of refrigerant piping connection...

Page 18: ...o tighten the are nut according to the torque values in table 7 2 NOTE Use both a spanner and a torque wrench when connecting or disconnecting pipes to from the unit Fig 7 7 CAUTION Ensure to wrap ins...

Page 19: ...nnection is made through a switch that disconnects all poles with contact gap of at least 3mm 0 118 DO NOT modify the length of the power cord or use an extension cord CAUTION Connect the outdoor wire...

Page 20: ...cable for connection a Using wire strippers strip the rubber jacket from both ends of the signal cable to reveal about 15cm 5 9 of the wire b Strip the insulation from the ends of the wires c Using a...

Page 21: ...s CONFIRM The air conditioning unit will then start the fan for airflow automatic adjustment ON will flash during when the fan is on during automatic airflow adjustment After 3 to 6 minutes the air co...

Page 22: ...auxiliary heating type circuit breaker fuse need to add more than 10 A Model Power Supply Hz Voltage Min Max MFA 50 220 240V 198V 254V 30 50 220 240V 198V 254V 30 38SHDV125 50 220 240V 198V 254V 40 3...

Page 23: ...he manifold gauge Keep the High Pressure side closed 4 Turn on the vacuum pump to evacuate the system 5 Run the vacuum for at least 15 minutes or until the Compound Meter reads 76cmHG 1x105Pa 6 Close...

Page 24: ...g the system DO NOT mix refrigerants types of the unit Extend pipe length will reduce the capacity and energy efficiency amount of 5 meter piping on specification or nameplate to the actual pipe lengt...

Page 25: ...ed correctly d Ensure the indicators on the remote control and the display panel on the indoor unit work properly e Ensure the manual buttons on the indoor unit works properly f Check to see that the...

Page 26: ......

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