Comfortaire Comfort-Cire AMC 25 Manual

Wall Mount Split Units
AMW/AMC 25, 30, 45 &60
by AITONS'
AMW / AMC SERIES
Installation, Operation
And Maintenance Manual
Please read this manual before
installing and operating the unit
CONTENTS
INSTALLATION INSTRUCTIONS
!Tools / Supplies
!Safety considerations
!Selection of location
!Recommended height and length
!Installation Method
!Refrigerant piping & drainage
!Electrical wiring
OPERATING INSTRUCTIONS
!Operating tips
!Product description
!Auxiliary control
!Remote control operation
!Operating instructions
!Care and maintenance
!Trouble shooting

INSTALLATION INSTRUCTIONS
TOOLS AND SUPPLIES
The following tools are needed
for installation.
1. Level
2. Hole Saw
3. Core bits
4. Hammer
5. Drill
6. Torque wrench
7. Adjustable wrench
8. Flat head screwdriver
9. Philips head screwdriver
10. Wire stripper
11. Measuring tape
12. Ratchet set
13. Flaring tools
14. Tube cutter
The following materials are
required:
1. Correct size copper tubing
2. Correct size drain pipe
3. Sleeve and bush
4. Vinyl tape
5. Saddle & Clamps to support
refrigerant piping
6. Power supply cable
7. Insulation material
8. Putty or similar sealant
SAFETY CONSIDERATIONS
Installation and servicing of air conditioner can be hazardous due to high refrigerant pressure
and electrical components inside the unit. Only fully trained, qualified and certified service
personnel should install, repair and service the air conditioner.
While working on the air conditioner, all precautions in the literature, tags and labels attached to
the unit and all other general safety precautions should be carefully observed. Please follow all
safety codes, wear safety glasses and work gloves. Also use quenching cloth for brazing
operations.
It is highly recommended that this manual be read completely before installing and operating the
system.
WARNING: The main power breakers to the unit , including its accessory or
parts, should be turned off before performing service or maintenance operations
on the unit. Dangerous high voltage can cause electric shock, serious personal
injury or even death.

SELECTION OF LOCATION
Select a convenient location where:
INDOOR UNIT
!The cool air can reach every corner of the
area to be cooled.
!The unit is away from any direct heat
source
!Easy and short routing of the refrigerant
and drain pipes to the exterior.
!There are no flammable gas, alkaline or
acid present in the air.
!Air circulation is not obstructed, preventing
good air circulation.
!The structure where the unit is installed
should be strong enough to support the
weight of the unit and also prevent any
vibration during operation of the unit.
!Figure on the right shows the spacing to the
nearest wall.
OUTDOOR UNIT:
!The condensing unit should be located as
close as possible to the fan coil.
!The air inlet shall be located at least 4” from
the wall or other obstruction for unrestricted
airflow.
!The air outlet shall be located so as to
direct discharged warm air away from the
building. (Avoid low overhanging roofs to
avoid re-circulation of condenser discharge
air on vertical discharge models.)
!Mount the unit on a sturdy base.
!Figure on the right shows the spacing to be
provided.

RECOMMENDED HEIGHT AND LENGTH
If the refrigerant piping is longer than the
recommended length, or if the height
difference between the indoor and outdoor
unit is greater than recommended, the
capacity will drop and the compressor could
malfunction. Select an installation location
that is within the recommended parameters.
(MAXIMUM PIPING LENGTH
& HEIGHT RECOMMENDED)
Piping length (feet) Notes
Cooling
capacity
7,500 to
9,000
Btuh
Add
charge
Not
needed
Needed
(1)
Installation
not
recom-
mended
Unit
Piping
Diameter
1/4" and
3/8”
Recommended height difference is 23 ft or less
*Evacuate refrigerant lines
(1)
• Additional charge volume = (piping length - 23 ft.) x 0.2 oz.
An installation with a piping length of 23 ft. or less is desirable.
If this is not possible, the maximum piping length can be
extended to 50 ft. by charging the system with additional
refrigerant. However, cooling and heating capacity will be
reduced.
Piping length (feet) Notes
Cooling
capacity
18,500 to
36,000
Btuh
Add
charge
Not
needed
Needed
(2)
Installation
not
recom-
mended
Unit
Piping
Diameter
Recommended height difference is 23 ft or less
(2)
• Additional charge volume = (piping length - 33 ft.) x 0.2 oz.
*Evacuate refrigerant lines
An installation with a piping length of 33 ft. or less is desirable.
If this is not possible, the maximum piping length can be
extended to 55 ft. by charging the system with additional
refrigerant. However, cooling and heating capacity will be
reduced.
INSTALLATION METHOD
HOLE DRILLING: After deciding the
method your unit will be installed, a hole to
route the connecting tubes and wires to the
outdoor unit is to be drilled on the wall. The
hole must be lower than the point where the
drainpipe attaches to the drain pan of the
unit. It should also be slightly declined
towards the outside.
23 50
33 55

MOUNTING INSTALLATION PLATE:
The fan coil can be installed using any of the four methods described below.
Determine which is the most suitable method.
Position the installation plate on the wall
making sure that it is parallel to the ground.
This can be done by aligning the marking-
off line with a thread and weight as shown
in figure on the right. This is to ensure that
the condensate water does not overflow
from the drain pan.
Mount the installation plate with the 4
screws provided. (If the unit is to be
mounted on a concrete wall, consider using
anchor bolts instead of the screws provided.