Philips AMC S, AMC 25, AMC 30, AMW, AMC 45 User 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.

Cooling
capacity
7,500 to

9,000

Btuh

Recommended height difference is 23 ft or less
*Evacuate refrigerant lines

An installation with a piping length of 23 ft. or less is desirable.

(1)

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.

• Additional charge volume = (piping length - 23 ft.) x 0.2 oz.

& HEIGHT RECOMMENDED)

Add

charge

(MAXIMUM PIPING LENGTH

Piping length (feet)

Not

needed

23 50

Installation

Needed

(1)

not

recom-

mended

Notes

Unit

Piping

Diameter

1/4" and

3/8”

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.

Piping length (feet)

Cooling
capacity

18,500 to

36,000

Btuh

Recommended height difference is 23 ft or less
*Evacuate refrigerant lines

An installation with a piping length of 33 ft. or less is desirable.

(2)

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.

• Additional charge volume = (piping length - 33 ft.) x 0.2 oz.

Add

charge

needed

Not

33 55

Needed

(2)

Installation

not

recom-

mended

Notes

Unit

Piping

Diameter

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 marking­off 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.

INSTALLATION OF FAN COIL:

The extended liquid and suction pipes and drain hose are hidden inside a slot at the
back of the fan coil. This allows the hole on the wall to be either on the right or left side
of the fan coil.

RIGHT SIDE HOLE POSITION: The piping and drain hose are routed straight through
the hole.

LEFT SIDE HOLE POSITION: The
piping and drain hose run from the
right side to the left side of the unit,
hidden in the slot at the back of the
unit before routing through the hole
on the left side of the unit.

MOUNTING FAN COIL UNIT:

Hook the fan coil onto the upper
portion of the installation plate
ensuring that it sits securely on the
installation plate.
Press the lower portion of the unit
against the installation plate until the
hooks at the back of the unit are
securely engaged with the installation
plate.

MOUNTING CONDENSING UNIT:

Do not place the condensing unit
directly on the ground. It should
preferably be placed on a slightly
raised platform to prevent rain water
from splashing into it. Also ensure
that it is level. Avoid installing the unit
in places where flammable gases
may be present.

beams or blocks

If necessary, due to the placement conditions,
rubber cushions can be placed underneath the
outdoor unit.

REFRIGERATION PIPING & DRAINAGE

PREPARATION OF PIPING

Fan coil and side discharge condensing units are equipped with flare connections. Improper flaring
and brazing may cause refrigerant to leak out of the system. Follow these instructions carefully in
preparing the refrigerant piping.

! Ensure that all piping is of the correct size.

! Measure the distance between the indoor and outdoor units' refrigerant connections, together

with all the curves necessary. Add a few inches as slack.

! Lay the piping as straight as possible on a flat surface and with a pipe cutter, cut the piping

according to the measured length.; Do not tighten the cutter excessively during cutting as this
may cause the pipe to deform. Do not use hacksaw or similar tools to cut the pipe, as it results
in metal shavings getting inside the pipe. This also makes proper flaring impossible.

! Use a reamer to remove burrs from cut edges. Hold the pipe ends upside down to prevent

metal powder from getting into the pipe.

Pipe

Reamer

Note:

As the pipe is round, cutting should be
performed on a straight section. Also,
do not apply too much force with the
blade of the pipe cutter.

Pipe cutter

Keep pipe facing downward
when removing burrs.

! For connection to flare settings, the pipe has to be flared. Remove the flare nut from the unit

and insert it onto the piping.

! Fit the pipe into the bar of the flare tool, about 0.5 mm higher than the surface of the bar.
! Center the flare punch carefully on the pipe and turn gradually to widen the pipe. Check the

finish of the flare to ensure even flaring.

! Cover the flared ends with tape to prevent dust from entering.

Handle

Flaring tool

Flaring bar

Length of periphery portion

Flare nut

L should be constant

0.635 (1/4”) only 0.952 (3/8”) and larger

Approx. 1 mm

0.5 mm

PIPING INSULATION

Liquid and suction lines must be insulated
separately. In a cooling only type air
conditioner, both pipes become cold during
operation. This can cause moisture to
condense on the surface of the pipes,
resulting in heat loss.

PRECAUTIONS WHEN BENDING
PIPES

! The air conditioner's performance

will suffer if the piping is crushed.

! Bend pipes using the pads of your

thumbs to prevent them from
collapsing (See picture on the right.)

! Use a pipe bending tool to bend pipe

wider than 1/2" in diameter.

Insulation

Narrow Pipe

Bend with pads of thumbs

Wide Pipe

Common insulation

Separate insulation is essential

Pipe bending tool

FLARE FITTING CONNECTION. There are 3 piping rules:

(a) DRY: Never allow any water to get
inside the piping.

Cap

Keep cap attached until immediately

before making piping connections.

(b) CLEAN: Never allow dirt, sand or other
foreign particles to get inside the piping.

b/a = 0.7 or more

Cap

Keep cap attached until immediately

before making piping connections.

(c) PRECAUTIONS WHEN CONNECTING PIPES:

Connections will go more smoothly if the
large pipe is connected first, followed by the
small pipe. Hold the nipple and the flare
nut straight and lightly turn the nut two or
three turns by hand to ensure that the
threads are aligned.
Then tighten to the specified torque using a
wrench. In particular, when tightening 1/4"
diameter flare nuts, use the specified torque
wrench

Fan Coil

! Align the center of both flare fittings

and tighten the flare nut with your
hand.

! With a torque wrench tighten the

flare nut fully.

Torque wrench

First, 2 or 3 turns by hand

Nipple

Flair nut

Fix in place.

Wrench

Torque wrench

Always look at arrow on

torque wrench to

determine direction.

Condensing Units

! Align the center of the flare nut of the

liquid line to the liquid valve. Tighten
the flare nut, first with your hand and
then fully tighten with the torque
wrench.

! Align the center of the flare nut of the

gas line to the gas valve. Tighten
the flare nut with your hand. After
purging, tighten it fully with a torque
wrench and check all connections for
leaks with soap solution.

Outdoor unit

Liquid side piping

Gas side piping

Torque wrench

AIR PURGING

This procedure is used to remove air from inside the piping connecting the indoor and outdoor units,
as well as the air inside the indoor unit. If air purging is not carried out, air will beocme mixed into the
refrigerant cycle, causing the pressure to rise to abnormally high levels, increasing power
consumption and reducing the capacity of the unit. Also, moisture in the air can cause insulation
failure in the compressor motor and deterioration of the refrigerant oil, resulting in a significant
reduction in the air conditioner life.

The procedure is as follows:

! Confirm that all piping connections

have been completed correctly.

! Connect a gauge manifold and a

vacuum pump as shown in the
diagram.

! Completely open the low-pressure

valve of the gauge manifold and
completely close the high-pressure
valve.

! Start the vacuum pump and allow it

to operate until the pressure is at 29”
of vacuum. This will take about 15
minutes or more.

! With the low-pressure valve

completely open, switch off the
vacuum pump.

! Completely open both the suction

and liquid service valves.

! Disconnect the manifold.
! Tighten the caps on the service

valves and the flange nut on the
charging port.

Narrow pipe

service valve

Wide pipe

service valve

Low pressure

valve

Gauge Manifold

High pressure

valve

Vacuum pump

DRAIN PIPE CONNECTION

The fan coil is equipped with a drain hose. It is
tied together with the refrigerant piping. During
installation, it is important to observe the following
instructions to prevent water overflowing from the
drain pan.

! Insure that the indoor unit is level and not

tilted forwards or backwards.

! Insure that the drain hose does not rise

above the drain pan. It should be sloping
towards the hole.

! Route the drain hose through the same

hole as the refrigerant pipes.

! If the drain pipe extends horizontally a long

way, use PVC tubing to provide heat
insulation.

! Outside insert the drain hose into a PVC

drainpipe and not the other way around and
glue them together.

! Run the PVC drainpipe straight down the

wall. There should be no traps and avoid
putting the end of the pipe into water.

! Ensure that all sections of the PVC pipes

are glued securely together.

! Ensure that the entire indoor part of the

drain hose is insulated to avoid
condensation from dripping.

! Drain pipe may be required for heat pump

unit and should be connected if necessary.

Drain Pipe

• Traps

Trap

• Long Horizontal Extensions

Good

No good

The lack of a
downward
slope causes
water to build
up and
overflow the
drain pan.

Even if there is a downward slope overall,
there must not be any “double traps” formed

Gap of approximately 50 cm

Secure in place
with saddles

Good

Drain hose

Downward

Slant

Down-

ward
slant

Drain Pipe

Traps

Stiff vinyl
chloride (PVC)
tubing

Trap effect created

Flexible tube

No good

Drain water cannot

flow freely

Drainage gutterDrainage gutter

SLIME

Water leakage due to a clogged drain hose can be caused by accumulated dirt in the drain pan or by
a buildup of slime inside the drain hose.

Slime is caused by the following factors:

! Temperature : 25°C (77°F) to 30°C(86°F)
! Accumulated water
! Nutrients (components of perspiration and dust in the air)
! A combination of certain types of mold and bacteria.

To reduce the chance of clogging, it is very important to ensure that the drain hose has a downward
slant to prevent water from accumulating and a clean and a well ventilated environment.

Outdoor unit

Holder for

connecting cable

Control board

cover

ELECTRICAL WIRING

to power supply

LOCATION OF TERMINAL BLOCK:

The terminal block on the indoor unit is located
next to the PCB. Cable access is through the
back of the unit. For the condensing unit, the
terminal block is located behind the control panel.

Holder to

power supply cord

connecting cable

WIRING CONNECTION:

! All wiring and grounding must comply with the local Electric Codes.
! See the unit nameplate for electrical rating and use correct wire size to handle the minimum

circuit ampacity required for the unit. Refer to Local Electric Codes for wire sizing.

! Always use a separate power line with circuit breaker for each air conditioner.
! Always ground the unit.
! Ensure that no wiring touches the tubing, motors or any other moving parts.
! Depending on the outdoor unit type, the number of inter-connecting wires between indoor and

outdoor unit varies. Please refer to the wiring diagram on the unit to determine the number of
wires required and correct connection.

! Finally inspect all the electrical connections, including the factory wiring to ensure that all

connections are tight.

EXTERNAL FINISHING OF PIPING

! After completing the installation of the

refrigerant piping, drain pipe and wiring,
bind them together into a bundle with tape
at 4 inches to 8 inches (100 to 200 mm)
intervals. Start from the bottom and work to
the top. Keep the drainpipe at the bottom
of the bundle.

! Do not fail to apply insulation to the joints

and wrap them with tape. If the joints are
not insulated, condensation could form on
them, resulting in water leakage.

! Use saddles to secure piping in place so

that it does not sway back and forth.

! Plug any open portions of the pass through

hole with putty to ensure that no rain or
wind can get inside.

! Finally, tidy up both the inside and outside

and the installation process is complete.

Insulation

Refrigerant Tubing

Wall cap

Putty

Inside

Putty

Inter-connecting Wiring

Insulation

Wall

Outside

Tape

Drain Pipe

Putty

OPERATING INSTRUCTIONS

OPERATING TIPS:

Observe the following points for economical and safe operation:

! Keep the room temperature at a comfortable level. Too much cooling is unhealthy and results

in excessive consumption of electricity. A temperature setting of 75°F (24°C) is usually
sufficient during the day. During the night, set the temperature a few degrees higher as the
body temperature is reduced when a person is asleep.

! Adjust the vertical and horizontal louvers to provide uniform distribution of air in the room.
! Clean the filter at least twice a month. A clogged air filter reduces performance and increases

power consumption.

! Keep the indoor and outdoor coils clean to maintain high heat transfer capability. Periodically,

inspect the coils and call a professional serviceman to clean the coils with special cleaning
chemicals if necessary.

! Reduce heat gain through windows by stopping direct sunlight with curtains or blinds. Awnings

are also helpful by creating shade around the windows. Keep windows and doors closed
except when ventilating the room.

! It is good practice to ventilate the room occasionally to rid the room of stale air.

PRODUCT DESCRIPTION

Figure below illustrates the important components of the air conditioning unit.

Front Cover

Auxiliary controller

Indicating lamps

Vertical louver

Horizontal louver

Remote controller

Air filter

Pipe and electrical

Drain hose

AUXILIARY CONTROL

Figure below illustrates the auxiliary control on the fan coil. This can be used to
operate / control the air conditioner when the remote controller is not available or lost.

Test

Use to operate the air conditioner under "COOL" mode. All other functions will not be
effective. The air conditioner will automatically stop operating after 30 minutes. This is
to test if the air conditioner is in working condition.

Remote

In this position, the air conditioner is controlled by the remote controller.

Auto

Use to by-pass the remote controller. The air conditioner will operate automatically
when power is supplied. The remote controller is ineffective in this position.

Red indicating lamp

Red light will be lit when electrical power is supplied to the air conditioner.

Green indicating lamp

This green lamp will be lit when the compressor starts operating. It indicates cooling
operation is in progress. It will blink if the operating temperature is abnormal.

REMOTE CONTROL OPERATION

CONTROLS AND INDICATORS

Figure below illustrates the various controls and indicators of the LCD wireless remote
control.

MODEL: AMW 25, 30

MODEL: AMW 45, 60

OPERATING INSTRUCTIONS

Before operating the unit for the first time, it is necessary to install the batteries in the
remote controller.

! Batteries are located at the back of the

remote controller (Model AMW25, 30) and
at the front of the remote controller (Model
AMW45, 60).

! Open the battery holder by simultaneously

pushing downwards and inwards at the
area marked "OPEN"

! Use only "AAA" alkaline batteries

! Dispose of used batteries correctly, in a

manner not causing pollution or harm to the
environment.

OPERATING GUIDE MODEL: AMW 25, 30

! Start air conditioner. Point the remote controller at the fan coil and press ON/OFF button.
! Select the operational mode. Press either "Cool", "Dry" or "Vent" button to select the desired

mode.

! Set temperature. Press "+" or "-" button to set desired temperature.
! Select fan speed. Press "Fan" button to select desired fan speed.
! Set airflow position. Press "Vane" button to adjust airflow direction or to set vane to auto

swing.

! Set Timer. If required, press "Time" button to set timer On or Off. After pressing "Time"

button, the Time display on the LCD will start to flash. Press "+" or "-" to set the time before
flashing stops.

! Sleep mode. Select sleep mode by pressing "Time:" button until "Sleep" appears on the LCD

display. Sleep mode allows the air conditioner to raise the room temperature by up to 2°F from
set temperature while you sleep to save power.

MODEL: AMW 45, 60

! Start air conditioner. Point the remote controller at the fan coil and press "ON/OFF" button.
! Select operation mode. Press "Mode" button to select any of the following modes: "Cool",

"Dry" or "Vent".

! Temperature setting. Press "+" or "-" button to set desired temperature.
! Select fan speed. Press "Fan control" button to select desired fan speed.
! Select airflow direction. Press "Louver control" button to set position of horizontal vane or

set it to auto swing.

! Set Timer. If desired, set timer on or off by pressing "Time Control" button, followed by "+" or

"-" button to select time before air conditioner starts or stops operating.

! Sleep mode. Press "Sleep" button to select sleep mode. A s the name suggests, it is used

during sleeping. The room temperature would be adjusted by 2°F up from set temperature to
save power.

2) FUNCTIONS

AUTO

This allows the air conditioner to operate automatically at a pre-set temperature. Cooling will be
affected when room temperature is above 82°F (28°C).

COOLING

When activated, the fan will automatically operate at high speed for 5 minutes before operating at the
set speed. During cooling if the humidity in the room is very high (RH above 80 %), condensation
may occur at the air discharge louver. It is advisable to operate the fan at high speed under this
condition.

DRYING

When activated, the air conditioner will operate on and off intermittently. The fan will automatically
operate at low speed. Fan speed, temperature settings and sleep mode will be by-passed. This
function will not operate if the room temperature is lower than 59°F (15°C).

FAN ONLY

The following speed can be selected. Low mid high auto. At auto, the fan speed will be
automatically selected by the micro-processor, depending on the difference between factory pre-set
and room temperature.

TIMER

This feature allows the air conditioner to be automatically SWITCH ON or SWITCH OFF after a pre­determined time.

CLOCK

This is for setting the real time to facilitate the operation of the timer.

CARE AND MAINTENANCE

! The air conditioner requires proper care and maintenance for efficient operation.

A periodic inspection and cleaning may be available from your dealer or
distributor. Be sure to ask about this service at the time of installation. The user
can also perform some of the care and maintenance. Please follow these
instructions.

! Be sure to disconnect the power supply before undertaking any inspection.

! Open the RETURN AIR GRILLE and remove the air filters. Clean by washing or

with a vacuum cleaner. Dry the filters before putting them back on the unit.

! Do not operate the air conditioner without the air filters in it. Remember that the

filters protect the coil from getting dirty. A dirty coil is more difficult to clean than a
dirty filter. Clean the filters at least twice a month and more if the environment is
dusty.

! CLEAN THE UNIT: Clean with a wet soft cloth. Do not wash the air conditioner.

Never use the following to clean the air conditioner.

• Hot water above 104°F (40°C).

• Volatile substances like benzene, gasoline, thinner and other solvents.

END OF SEASON:

! When the air conditioner is to stop operating for prolonged periods, for example,

at the end of the season, please follow these instructions before shut down.

Operate the unit at the following setting for 2 to 3 hours.

• Type of Operation: Cool

• Temperature setting: 86°F (30°C).

• This will dry up any residual water in the unit.

• Remove the batteries from the Remote Controller.

! Use car wax on the painted surface of the outdoor unit.

START UP: Operation after prolonged period

! Clean the unit and the filter as described above.

! Operate the FAN ONLY for half a day to remove any moisture that may have

accumulated inside the unit.

TROUBLE SHOOTING

The following are normal and should not be treated as defects.

! Hissing sound, like flow of water from the unit. This is the sound of the

refrigerant at the expansion device, which can be heard from time to time
depending on the indoor and outdoor ambient conditions.

! The unit does not cool for a few minutes after it restarts. This is because a time

delay mechanism built into the unit prevents the compressor from starting for a
few minutes. This is to protect the compressor from breakdown.

! Smell from the supply air: The coil and filters absorb the smell from the

environment and the supply air may also have the same smell. This usually
happens in places where heavy cigarette smoke exists in the air.

BEFORE CALLING FOR SERVICE, PLEASE CHECK THE FOLLOWING:

Air conditioner does not operate:

! Check the thermostat setting to ensure that it is not set above the room

temperature.

! Check the circuit breaker.
! Check the power supply to ensure that it is not interrupted.

Cooling is insufficient:

! Check and clean the filters if necessary.
! Check that the thermostat setting is not above room temperature for cooling.
! Check that all windows and doors are closed.
! Check if there are sources of heat present in the room, like stove burners.
! Check that the fan speed is set to the HIGH setting
! If the system still does not operate or does not provide sufficient cooling, call for

a professional serviceman.

AMW/AMC 25

AMW/AMC 30

AMW/AMC 45 & 60

SERVICE NOTES

AITONS' EQUIPMENT INC.

Guelph, Ontario

www.aitons.com

e-mail: [e-mail]

Printed in Canada 03/03