Carrier 18K-24K User manual

Installation Manual
Accessories .................................................................................02
Installation Summary..................................................................03
Unit Parts......................................................................................04
Indoor Unit Installation ...............................................................05
1. Select installation location.........................................................................................................................05
2. Hang indoor unit........................................................................................................................................07
3. Drill wall hole for connective piping ...........................................................................................................09
4. Connect drain hose ...................................................................................................................................09
Outdoor Unit Installation ............................................................10
1. Select installation location.........................................................................................................................10
2. Install drain joint.........................................................................................................................................11
3. Anchor outdoor unit ...................................................................................................................................11
Refrigerant Piping Connection...................................................13
A. Note on Pipe Length .................................................................................................................................13
B. Connection Instructions – Refrigerant Piping............................................................................................14
1. Cut pipe................................................................................................................................................14
2. Remove burrs.......................................................................................................................................14
3. Flare pipe ends.....................................................................................................................................14
4. Connect pipes ......................................................................................................................................15
Wiring ...........................................................................................16
1. Outdoor Uint Wiring...................................................................................................................................17
2. Indoor Uint Wiring......................................................................................................................................18
Air Evacuation .............................................................................21
1. Evacuation Instructions .............................................................................................................................21
2. Note on Adding Refrigerant.......................................................................................................................22
Test Run ......................................................................................23

Safety
Precautions
Accessories
The air conditioning system comes with the following accessories. Use all of the installation parts and accessories
to install the air conditioner. Improper installation may result in water leakage, electrical shock and re, or cause
the equipment to fail. The items are not included with the air conditioner must be purchased separately.
Name of Accessories Q‘ty(pc) Shape Name of Accessories Q‘ty(pc) Shape
Manual 2~4 Remote controller
(some models) 1
Soundproof/insulation sheath
(some models) 1Battery(some models) 2
Outlet pipe sheath (some
models) 1Remote controller holder(some models) 1
Outlet pipe clasp
(some models) 1Fixing screw for remote
controller holder(some
models) 2
Drain joint
(some models) 1
Magnetic ring (wrap the
electric wires S1 & S2 ( P &
Q & E ) around the magnetic
ring twice) (some models)
1
S1&S2(P&Q&E)
Seal ring
(some models) 1
Magnetic ring (Hitch it
on the connective cable
between indoor unit
and outdoor unit after
installation.)
(some models)
Varies by
model
Copper nut 2 Conduit installation plate
(some models) 1
Name Shape Quantity (PC)
Connecting pipe assembly
Liquid side
ø6.35 (1/4 in)
Parts you must purchase
separately. Consult the dealer
about the proper pipe size of
the unit you purchased.
ø9.52 (3/8in)
ø12.7 (1/2in)
Gas side
ø9.52 (3/8in)
ø12.7 (1/2in)
ø16 (5/8in)
ø19 (3/4in)
ø22 (7/8in)
Page 02-GB
Accessories

Safety
Precautions
Page 03-GB
Installation
Summary
Installation Summary
Perform a test run
Install the indoor unit
Evacuate the refrigeration
system
Install the drainpipe
Connect the wires
Install the outdoor unit
Connect the refrigerant pipes

Safety
Precautions
Unit Parts
NOTE: The installation must be performed in accordance with the requirement of local and national standards.
The installation may be slightly different in different areas.
1
24
3
6
7
8
8
9
5
① Air ow louver (at air outlet)
② Air inlet (with air lter in it)
③Installation part
④Display panel
⑤Remote controller
⑥Drain pipe
⑦Connecting pipe
⑧Air inlet
⑨Air outlet
NOTE ON ILLUSTRATIONS
Illustrations in this manual are for explanatory purposes. The actual shape of your indoor unit may be slightly
different. The actual shape shall prevail.
Page 04-GB
Unit Parts

Safety
Precautions
Installation Instructions – Indoor unit
NOTE: Panel installation should be performedafter
piping and wiring have been completed.
Step 1: Select installation location
Before installing the indoor unit, you must choose an
appropriate location. The following are standards that
will help you choose an appropriate location for the unit.
Proper installation locations meet the following
standards:
Enough room exists for installation and
maintenance.
Enough room exists for the connecting the pipe and
drainpipe.
The ceiling is horizontal and its structure can sustain
the weight of the indoor unit.
The air inlet and outlet are not blocked.
The airow can ll the entire room.
There is no direct radiation from heaters.
DO NOT install unit in the following locations:
Areas with oil drilling or fracking
Coastal areas with high salt content in the air
Areas with caustic gases in the air, such as hot
springs
Areas that experience power uctuations, such as
factories
Enclosed spaces, such as cabinets
Kitchens that use natural gas
Areas with strong electromagnetic waves
Areas that store ammable materials or gas
Rooms with high humidity, such as bathrooms or
laundry rooms
Recommended distances between the indoor unit
The distance between the mounted indoor unit should meet the specications illlustrated in the following diagram.
≥35mm
≥35mm
≥1000mm
≥35mm
Indoor Unit Installation
Page 05-GB
Indoor Unit
Installation

Safety
Precautions
A
C
D
E
BRefrigerant pipe
connection
(D. gas side)
Drain point
Refrigerant pipe
connection
(E. Liquid side)
Hook
Indoor parts installation size
MODEL(Btu/h) Length of A (mm/
inch)
Length of B (mm/
inch)
Length of C (mm/
inch)
Length of D (mm/
inch) Length of E (mm/inch)
18K-24K 1068/42 675/26.6 235/9.3 983/38.7 220/8.7
30K-48K 1285/50.6 675/26.6 235/9.3 1200/47.2 220/8.7
36K-48K 1650/65 675/26.6 235/9.3 1565/61.6 220/8.7
48K-60K 1650/65 675/26.6 235/9.3 1565/61.6 220/8.7
Page 06-GB
Indoor Unit
Installation

Safety
Precautions
Step 2: Hang indoor unit
Wood
Place the wood mounting across the roof beam, then
install the hanging screw bolts.
Wood mounting
Roof beam
Ceiling
Hanging screw bolts
New concrete bricks
Inlay or embed the screw bolts.
Steel bar
(Blade shape insertion) (Slide insertion)
Embedding screw bolt
(Pipe hanging and embedding screw bolt)
Original concrete bricks
Install the hanging hook with expansible bolt into the
concrete to a depth of 45~50mm to prevent loosening.
Steel roof beam structure
Install and use the supporting steel angle.
Hanging screw bolt
Hanging
bolts Supporting angle steel
CAUTION
The unit body must be completely aligned with the
hole. Ensure that the unit and the hole are the same
size before moving on.
1. Install and t pipes and wires after you have nished
installing the main body .When choosing where to
start, determine the direction of the pipes to be drawn
out. Especially in cases where there is a ceiling
involved, align the refrigerant pipes, drain pipes, and
indoor and outdoor lines with their connection points
before mounting the unit.
2. The installation of hanging screw bolts.
• Cut off the roof beam.
• Strengthen the area at which the cut was made and
consolidate the roof beam.
3. After the selection of the installation location,
position the refrigerant pipes, drain pipes, and indoor
and outdoor wires to the connection points before
mounting the machine.
4. Drill 4 holes 10cm (4*) deep at the ceiling hook
positions in the internal ceiling. Be sure to hold the
drill at a 90° angle to the ceiling.
5. Secure the bolt using the included washers and nuts.
6. Install the four suspension bolts.
7. Mount the indoor unit. You will need two people to
lift and secure it. Insert suspension bolts into the
unit's hanging holes. Fasten them using the included
washers and nuts.
Page 07-GB
Indoor Unit
Installation

Safety
Precautions
8. Remove the side board and the grille.
Hanging
screw bolt Hanging arm
Side board
9. Mount the indoor unit onto the hanging screw bolts
with a block.
Position the indoor unit on a at level by using a
level to prevent leaks.
Screw nut
Overhang part
Shockproof cushion
Washer
Hanging screw bolt
NOTE: Conrm the minimum drain tilt is 1/100 or more.
Ceiling Installation
D. Refrigerant pipe connection
(D.gas side)
E. Refrigerant pipe
connection
(E. Liquid side)
Drain point
20mm
Downward slope between(1-2)/100
How to install the conduit installation plate (if supplied)
1. Fix the sheath connector (not supply) on the wire
hole of the conduit installation plate.
2. Fix the the conduit installation plate on the chassis
of the unit.
Chassis The conduit
installation plate
screws (not supply)
The conduit
installation plate
Wall-Mounted Installation
Cord conduit
How to install the conduit installation plate
(if supplied)
1. Fix the sheath connector (not supply) on the wire
hole of the conduit installation plate.
2. Fix the conduit installation plate on the electric
control box.
The electric control box
screws (not
supply)
The conduit installation plate
Page 08-GB
Indoor Unit
Installation