DELLA 048-MS-12 User manual

This pacakge contains information you need to install and
use your product. Keep the package for future reference.
Instruction
Package
048-MS-12 series
048-MS-18 series
048-MS-24 series
048-MS-36 series

Installation Guide Contents
Warning and Safety -------------------------------------------------------------------------
Installation Information -------------------------------------------------------------------
Name of Parts --------------------------------------------------------------------------------
Pre-installation --------------------------------------------------------------------------------
Indoor Unit Installation --------------------------------------------------------------------
Outdoor Unit Installation ------------------------------------------------------------------
Check List ---------------------------------------------------------------------------------------
Test Run -----------------------------------------------------------------------------------------
Finishing Touch -------------------------------------------------------------------------------
05
06
08
10
11
17
22
22
23
Operation Manual Contents
Warning and Safety -------------------------------------------------------------------------
Product Specication ----------------------------------------------------------------------
Parts Details -----------------------------------------------------------------------------------
Remote Control -------------------------------------------------------------------------------
Operation Instructions ---------------------------------------------------------------------
Wi- / App Connection --------------------------------------------------------------------
Care and Maintenance --------------------------------------------------------------------
Troubleshooting ------------------------------------------------------------------------------
Disposal Guideline ---------------------------------------------------------------------------
26
28
32
33
35
46
52
54
57

4Installation Guide
This guide contains all the information
you need to install your product.
Installation
Guide
048-MS-12 series
048-MS-18 series
048-MS-24 series
048-MS-36 series

5
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Warning and Safety
*Read this guide before installation. Failure to follow the safety instructions may result in property
damage, serious injury or death.
• Check if there is any refrigerant leakage during installation. Refrigerants can be toxic and
ammable. Rapid evaporation of refrigerant may cause frostbite, cardiac arrhythmia, and/or
irritation.
• Do not install the appliance within 50cm of ammable substances such as alcohol, etc. Or
pressurized containers such as spray cans.
• The appliance must be installed in accordance with applicable federal, state, and local
regulations.
• Ensure that the power supply voltage corresponds to that stamped on the rating plate.
• Do not bend, tug, or compress the power cord during installation to prevent damaging the
power cord. The electrical cord should be replaced by a qualied electrician.
• Do not use power extensions and/or muti-socket modules for appliance installation.
• Do not alter, change, or modify the appliance.
• A fuse or overload protection device with a suitable capacity for the indoor unit must be
installed.
• The appliance must be tted with means for disconnection from the main power supply
under over-voltage category III conditions. All electrical wiring must follow federal, state, and
local regulations.
• Do not place the appliance in contact with water. The electrical insulation could be damaged
and thus cause electric shock.
• When working on the electric terminals, make sure the appliance is disconnected from the
power supply.
• Make sure the appliance is properly grounded to prevent electric shock.
• Prevent children from accessing the working area during installation to prevent
unforeseeable accidents.
• The base of the outdoor unit must be rmly xed.
• Carry out a test run after the installation.
• Installing a mini split AC requires specialized training and equipment. Hire a licensed
professional if not familiar with electrical wiring and HVAC systems.
• The packaging materials are recyclable and should be disposed of in separate waste bins.
• The appliance should not be installed in a location where the air outlet of the indoor or
outdoor units is obstructed. Obstructions of these openings may cause damage or failures
to the appliance.
DANGER WARNING
WARNING
CAUTION
CAUTION
Indicates an imminently
hazardous situation that, if not
avoided, will result in death,
serious injury, or serious
property damage.
Indicates a potentially
hazardous situation that, if not
avoided, will result in death,
serious injury, or serious
property damage.
Indicates a potentially
hazardous situation that, if not
avoided, will result in minor to
moderate injury. It may also
be used to indicate unsafe
practices.

6Installation Guide
Installation Information
Power Cord Requirement
Cable Type
Outdoor Power Supply
Cable H07RN-F / H05RN-F
Interconnection Cord H07RN-F / H05RN-F
Power Cord Minimum Cross
Sectional Area (North America)
Appliance Amp (A) AWG
10 18
13 16
18 14
25 12
30 10
40 8
Power Cord Minimum Cross
Sectional Area (Other Regions)
Appliance Amp (A)
Nominal
Cross
Sectional
Area (mm²)
>3 and ≤6 0.75
>6 and ≤10 1
>10 and ≤16 1.5
>16 and ≤25 2.5
>25 and ≤32 4
>32 and ≤40 6
NOTE:
• Maximum current and product specications are located on the side panels of the unit.

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Installation Information
Torque Parameters
Pipe Size Newton Meter
(N-M)
1/4” (Ø6.35) 15 - 25
3/8” (Ø9.52) 35 - 40
1/2” (Ø12) 45 - 60
5/8” (Ø15.88) 73 - 78
3/4” (Ø19.05) 75 - 80
Pipe Length and Additional Refrigerant
Piping Length Additional Refrigerant (R410A) Charge
≤16.4ft No additional refrigerant needed
16.4ft - 49.2ft
(≤12000 Btu) 20g/m
16.4ft - 49.2ft
(≥18000 Btu) 30g/m

8Installation Guide
Name of Parts
Refrigerant Valves
Control Box
with wiring diagram
Insulating Tape Wrap
Indoor Unit
Outdoor Unit
Wiring Terminal
with wiring diagram
Electrical Wire
Drain Hose
Refrigerant Pipe

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Name of Parts
Included Accessories
Tools needed (not included)
• Screw Driver
• Hole Saw Ø70mm
• Refrigerant Leak Detector / Liquid Leak
Detector
• Allen Wrench
• Spanner
• Torque Wrench
• Measuring Tape
• Spirit Level
• Stud Finder
• Thermometer
• Vacuum Pump
• Hollow Wall Anchors / Molly Bolts
• Wood Screws
• Wall Sleeve
• Floor Mounting Base Kit / Wall Mount Kit
• Ø25 Drainage Joint
Refrigerant Pipe
2x
Drain Hose
2x
Wall Cover
1x
Plasticine Putty
1x
Insulation Wrap
1x
Remote Control
1x
Mounting Plate
1x
Electrical Wire
3x

10 Installation Guide
≥15cm / 5.9"
≥20cm / 3.9"
≥30cm / 11.8"
≥30cm / 11.8"
≥15cm / 7.9"
≥100cm / 39.4"
≥20cm / 7.9"
≥20cm / 7.9"
≥100cm / 39"
(From the closest
item underneath
the indoor unit)
Pre-installation
1
4
5
7
8
9
6
2
Choose the installation location.
Mount the indoor unit.
Placing the outdoor unit.
Vacuum Pumping.
Check List.
Test Run.
Drill wall hole and Install
mounting plate.
‣ Page 11
‣ Page 16
‣ Page 17
‣ Page 21
‣ Page 22
‣ Page 22
‣ Page 11,12
3Connent the indoor unit.
• Connect the refrigerant
pipes.
• Connect the drain hose.
• Connect electrical wires.
Connect the outdoor unit.
• Connect the refrigerant
pipes.
• Connect electrical wires.
‣ Page 13
‣ Page 14
‣ Page 15
‣ Page 19
‣ Page 20

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Molly Bolt Wall StudWall WallMounting Plate Mounting Plate
Bolt Wood Screw
Hollow Drywall Wood Stud
Install Mounting Bracket
1. Locate the studs and electrical wires inside the wall. Then measure the indoor unit dimensions and
add the surrounding clearance space to determine the exact mounting location.
2. Use a spirit level to level the mounting plate on the wall. Then mark out the screw hole positions.
3. Drill holes in the wall, then insert wall anchors into the holes and afx the mounting plate to the
wall using screws.
*Use a wood screw if the hole position is directly on a wood stud.
NOTE:
• You must use the correct wall anchor according to the type of the wall.
Picking a Indoor Unit Instalalltion Location
• Make sure the air inlet and outlet are clear of any obstruction.
• Condensation can be easily drained.
• All connections can be easily made to the outdoor unit.
• Indoor unit is out of children’s reach.
• Indoor unit is accessible for maintenance.
• Install 3m / 10ft away from TV or radio appliances.
(Radio interference may occur if appliances are placed too close to each other)
• Do not install in a laundry room or by a swimming pool.
• Ensure there is enough clearance space around the unit.
‣ Page 10
Indoor Unit Installation

12 Installation Guide
Drill Wall Hole
NOTE:
• Make sure there is no building structure pillar, beam, strut, or any electrical wire, or water pipes in the way of the drill hole.
• Always insert the sleeve into the wall hole and seal the surrounding with putty if you are installing it on a hollow wall such as drywall
or plaster walls. This will prevent water, insects, or small animals from getting into the wall.
1. Pick 1 of the 3 piping positions on your air conditioner.
2. Mark a Ø70mm hole that goes from the indoor wall to the outdoor wall. The hole must be slanted
downward with a small angle. And the position of the hole must be lower than the indoor unit
drainage port.
3. Drill the hole and insert the wall sleeve (not included) and sleeve cover into the hole.
Right side of the unit
Piping Position
Left side of the unit
Indoor
5 - 10mm
Outdoor
Behind of the unit
• Drilling into electrical wires or water pipes inside the wall may cause electric shock, re, or
water damage.
WARNING
Indoor Unit Installation
Ø70mm hole

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Connect the Indoor Unit Refrigerant Pipes
NOTE:
• Carefully unroll the copper pipes and prevent kinking the pipes.
• Connection nuts must be tightened according to the torque requirement.
Hold
1. Position the pipes of the indoor unit towards the wall holes. Cut off and trim the plastic cover on
the unit if the pipes are positioned to the left or right side of the unit.
2. Unroll the included refrigerant pipes.
3. Remove the covers from the pipe ports and make sure the ports are clean and smooth.
4. Align the pipes to that from the indoor unit, then tighten the nut by hand.
5. Use a torque wrench to tighten the nut according to the requirement.
(Refer to installation information on .)
6. Wrap the joints with insulation tape.
‣ Page 07
Torque Tighten Imperfect aring
Dirty pipes
Indoor Unit Installation

14 Installation Guide
Connect the Indoor Unit Drain Hose
1. Adjust the drainage hose in the indoor unit.
* In some models, drainage ports are available on both sides of the indoor unit. You can choose
one side to attach the drain hose and insert a rubber plug on the unused port.
2. Connect the drain hose to the drainage port, make sure the joint is rmly connected and has a
good seal.
3. Wrap the joint with Teon tape to prevent any possible leak.
Drainage Ports
Drain Hose Installation
NOTE:
• Drain hose must be slanted
downward and leave a small gap
between the ground and the hose.
NOTE:
• Avoid having bends or dents on the drain hose.
• Do not leave the end of the hose into drainage gutter.
Indoor Unit Installation

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Connect the Indoor Unit Electrical Wires
1. Choose the right cable size according to your model's maximum operating current.
(Refer to installation information on .)
2. Open the front panel of the indoor unit.
3. Use a screwdriver to open the electric control box cover and get access to the terminal block.
4. Unscrew the cable clamp
5. Insert one end of the wires from the back of the indoor unit to the terminal block.
6. Connect the wires to the corresponding terminal.
*Detailed electrical diagram is printed on the control box cover.
7. Screw the cable clamp and secure the wires in place.
8. Reinstall the control box cover and close the indoor unit's front panel.
‣ Page 06
Terminal Block
Cable Clamp
Indoor Unit Installation
• Electrical wiring must be done by a qualied technician or electrician. Failing to connect the
wires correctly will cause short circuit, a re, and property damage.
WARNING

16 Installation Guide
Mount the Indoor Unit
1. Carefully pass the pipes, hose, and cable bundle through the wall hole.
2. Hook the top of the indoor unit on the mounting plate.
3. Push the unit lightly left and right to make sure it is rmly hooked on the mounting plate.
4. Push down the bottom of the indoor unit and snap into the mounting plate.
Bundle the Pipes, Hose, and Wires
1. Arrange the pipes, hose, and wire cable according to the following image. Make sure the drain hose
is positioned at the bottom and avoid crossing or tangling any parts.
2. Wrap the bundle with Insulation tape.
Wire Cable
Refrigerant Pipe
Insulation Tape
Insulation Tape
Drain Hose
(Must positioned at the bottom)
After connecting the refrigerant pipes, electrical wires, and drain hose, they must be bundled with
insulating tape before passing them through the wall hole.
Indoor Unit Installation

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Placing the Outdoor Unit
Install Drainage Joint
• Do not install the outdoor unit near a heat source, steam, or ammable gas.
• Do not install the outdoor unit in windy or dusty locations.
• Do not install the outdoor unit in places where people often pass.
• Avoid installing the outdoor unit in places where it will be exposed to direct sunlight.
(If necessary, build a protection that does not interfere with the airow.)
• Make sure there is enough space around the outdoor unit to circulate air.
• Outdoor unit must be placed in a safe and solid location.
• The outdoor unit should ideally be placed on a concrete pad.
• Ensure there is enough clearance space around the unit.
‣ Page 10
1. Drainage joint (not included) is necessary for heating pump models.
2. Insert Ø25 drainage joint into the bottom hole of the outdoor unit.
3. Connect one end of the drain hose to the joint and the other end to the drainage point.
Outdoor Unit Installation

18 Installation Guide
Secure the Outdoor Unit (Ground Installation)
Secure the Outdoor Unit (Wall Installation)
1. Place a concrete pad on the installation location.
2. Mount the outdoor unit in a base kit or stand.
3. Drill holes on the concrete pad.
4. Secure the base kit or stand on the concrete pad with concrete anchor bolts.
1. Measure the distance between the outdoor unit's legs.
2. Mount the wall mounting bracket on the wall.
3. Secure the outdoor unit on the wall mounting bracket.
NOTE:
• Rubber foot pads can be placed between the outdoor unit and the mounting kit to reduce vibrations and noise.
NOTE:
• The wall mounting bracket and the wall must be able to support at least 4 times the weight of the outdoor unit, or 441lb, whichever
is heavier.
The outdoor unit can be xed on a wall mounting bracket if there is no ground mounting option.
Wall Mount Bracket
(Not included)
Outdoor Unit Installation
Mounting Stand / Base Kit
(Not included)
Concrete Pad (Not included)

19
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1. Remove the plastic caps from the end of the valves.
2. Remove the covers from the pipe ports and make sure the ports are clean and smooth.
3. Align the pipes to the outdoor unit valve, then tighten the nut by hand.
4. Use a torque wrench to tighten the nut according to the requirement.
(Refer to installation information on .)
Connect the Outdoor Unit Refrigerant Pipes
‣ Page 07
Remove Plastic Caps
Hold
Torque Tighten
Outdoor Unit Installation

20 Installation Guide
Connect Electrical Wire
Cable Clamps
1. Unscrew the screws from the wiring cover and remove it from the unit.
2. Unscrew the cable clamp.
3. Insert the electrical wires from the indoor unit through the opening on the cover, then connect the
wire to the outdoor unit terminal.
*Detailed electrical diagram is printed on the back of the wiring cover.
4. Insert power supply wires to the opening on the cover, then connect the wire to the outdoor unit
terminal.
*Detailed electrical diagram is printed on the back of the wiring cover.
5. Turn off any power from the power supply, and connect the wires to the power supply circuit box.
6. Reinstall the wiring cover to its original place.
NOTE:
• Both the wires from the indoor unit and from the power supply must be grounded.
Outdoor Unit Installation
Wire Terminal
Wiring Cover with
Electrical Diagram
Electrical Wires
from Indoor Unit
Electrical Wires
from Power Supply