Frigidaire FFMS121CQ10 User manual

Refer to Page 2 for table of contents.
www.frigidaire.com USA 1-866-942-1567 www.frigidaire.ca Canada 1-866-942-1567
16122000A16518 (June 2009)
All about the
Installation
of your
Split Type Room Air Conditioner

Welcome
01
Welcome to the world of
simple handling and no worries
Environmental advices
Attention!!
Thank you for choosing Frigidaire. This manual contains all of the information
required to guarantee your safety and the appropriate use of your air
conditioner.
Please read all of the instructions before using the air conditioner and keep
this manual for future reference.
We know you will enjoy your new air conditioner and thank you for choosing
our product.
We hope you will consider us for future purchases.
The packaging material used is recyclable. We
recommend that you separate plastic, paper and
cardboard and give them to recycling companies.
If you need to dispose of this appliance in the
future, do not throw it away with the rest of your
domestic garbage.
The air conditioner that you have bought may be slightly different from
the one illustrated in this manual. Please refer to the information related
to the model you have.
This air conditioner is for domestic use only. It is not recommended for
heavy commercial or industrial use.

02
Contents
Contents
01. Welcome..........................................................................................01
02. Environmental advices........................................................................01
03. Contents...........................................................................................02
04. Safety precautions.............................................................................03
05. Installation:
5.1 Choosing the installation site.................................................04
5.2 Parts list..............................................................................06
5.3 Indoor unit installation..........................................................08
5.4 Outdoor unit installation....................................................... 11
5.5 Refrigerant piping connection................................................12
5.6 Electrical work.....................................................................14
5.7 Purging the system............................................................... 18
5.8 Electrical safety....................................................................21
5.9 Gas leak check....................................................................21
5.10 Initial operation test..............................................................22

Satety precautions
03
Safety precautions
This appliance must be installed by a qualified licensed HVAC
technician in accordance with all applicable codes. All electrical
connections should be performed by a licensed electrician.
Manufacturer's warranty will be voided with failure to comply.
Incorrect Handling cound result in Serious Injury or Death!
1. Do not attempt to install the split air
conditioner by yourself.
2. This air conditioner contains no
user-serviceable parts. Always call
an authorized Frigidaire servicer
for repairs.
3. When moving the air conditioner,
always call an authorized Frigidaire
servicer for disconnection and re-
installation.
4. Do not insert fingers or place
objects into the discharge area in
the front of the indoor unit.
5. Do not insert fingers or place
objects into the discharge area in
the front of the outdoor unit.
6. Do not start or stop the air
conditioner by turning off the power
at the electrical box.
7. In the event of a malfunction (sparks,
burning smell, etc.) immediately
power off unit and call an
authorized Frigidaire servicer.
8. Do not operate the air conditioner
with wet hands.
9. Do not drink any water or
condensation that is drained from
the air conditioner.
10 .Provide occasional ventilation
during use. Do not direct airflow
at fire places or other heat related
sources as this could cause flare
ups or make units run excessively.
11. Do not climb on or place objects
on the outdoor unit.
12. Do not hang objects off the indoor
unit.
13. Do not place objects containing
water on the indoor and/or
outdoor units.
14. Turn off the air conditioner at the
power source when it will not be
used for an extended period of
time.
15. Periodically check the condition of
the outdoor unit’s installation base
for any damage.
16. Do not apply heavy pressure to
the coil fins of the indoor and/or
outdoor units.
17. Operate the indoor unit with air
filters in place.
18. Do not block or cover the intake
grille, discharge area and outlet
ports.
19. Ensure that any electrical/
electronic equipment is 36” away
from the indoor unit and outdoor
unit.
20. Do not use or store flammable
gases near the indoor and/or
outdoor units.

Choosing the installation site 04
Choosing the installation site
Installation Warnings
1. Carefully read the installation manual before beginning.
2. Follow each step as shown.
3. Observe all local, state and national electric codes. This appliance must
be installed by a qualified licensed HVAC technician in accordance with
all applicable codes. All electrical connections should be performed
by a licensed electrician. Failure to comply will result in a void of the
manufacturer's warranty.
4. Pay attention to all safety notices.
Precautions for Installation
Installation at the following sites may cause problems. If you must inevitably
install the unit at one of these sites, please consult your local distributor
beforehand:
1. Sites with machine oil.
2. Sites with a high concentration of salinity, such as coastal areas.
3. Sites with sulfuric gas, such as hot water springs.
4. Sites with high frequency equipment, such as wireless equipment, welding
machines and medical installations.
5. Sites with flammable gases or volatile material.
6. Sites with special environmental conditions.
7. Laundry rooms.

05 Choosing the installation site
Indoor Unit
1. Install unit where air flow will not
be obstructed.
2. The installation location must
support the weight of the indoor
unit.
3. The site must be easily accessible
for maintenance and replacement
of the air filter.
4. The installation location must allow
for the necessary space around the
indoor unit, as shown in the figure
1.1.
5. There should be at least 3 feet (1
meter) between the unit and radio
or television devices. It is ideal that
the unit be installed at the center of
the wall.
6. The indoor unit must be kept away
from fire, smoke and flammable
gases.
Outdoor Unit
1. The outdoor unit must be installed
at a convenient site that is not
exposed to strong winds. The site
should be dry and well ventilated.
2. The site must support the weight
of the outdoor unit and allow for
vertical installation.
3. The site must be kept away from
flammable gases.
4. The site must provide enough space
around the unit, as shown in figure
1.2.
5. Children must not be able to access
the installation site.
7. We recommend the indoor unit to
be installed as high up as possible
on the inside wall (minimum of 7
feet high), always leaving a space
of at least 6" between the top of the
indoor unit and the ceiling.
8. The installation location must
allow for the easy removal of the
connector pipe and drain hose.
9. The unit must be installed at a
location protected from direct
sunlight.
More
More
than 6"
than 6"
More
than 6"
More than
19-13/16"
More
More than
79-1/5"
More
More than
19-13/16"
than 12"
More
than 2"
than 12"
06
Figure 1.1
Figure 1.2

06
Part list
Wall Mounting Bracket
Drain Joint (Heat Pump only)
Remote Control
Self-tapping screws
(For Wall mounting Bracket)
Connecting pipe
assembly
1
1
5
5
1
1
7
6Remote Control Holder 1
Self-tapping screws (For Remote Control Holder) 2
Part list
(capacity = 12000 Btu's)
(capacity = 9000 Btu's)
capacity = 9000 Btu's
capacity = 12000 Btu's
6
72
72

Part list
07
4
3
1
Indoor unit
Outdoor
unit
5
6
Air filter
A
BC
More than
79-1/5"
More than 12"
More than
19-13/16"
More than
19-13/16"
More than 6"
More than 6"
More than 6"
2
7
6
Attention!!
1. This illustration is for explanation purposes only.
2. Copper tubes must be insulated independently.
72
72

08
Indoor unit installation
Indoor unit installation
Wall mounting brackets and dimensions
150mm/5.9in or more to ceiling
100/3.9
800/31.5
120mm/4.7in
or more to wall
Left rear side
refrigerant pipe
hole Ф65/2.6in
95/3.7 Indoor unit outline
120mm/4.7in
or more to wall
275/10.8
45/1.8
Right rear side
refrigerant pipe
hole Ф65/2.6in
Installing the Wall Mounting Bracket
Drilling the Hole
1. Install the wall mounting bracket
horizontally over the structural
parts on the wall using the spaces
indicated on the bracket, as shown
in figure 1.3.
2. In the case of tiled, concrete or
similar walls, create 13/64"
diameter holes. Place anchor
supports for the appropriate
assembly screws.
3. Install the wall mounting bracket to
1. Determine the position of the
hole for the pipes using the wall
mounting bracket and drill the
pipe hole so that it is tilted slightly
downward.
2. Always use a pipe cover with an
opening when drilling.
Wall mounting bracket
Wall
Indoor unit Outdoor unit
0.2"-0.3"
Attention!!!
Fit the wall mounting bracket and drill holes in the wall according to the
wall structure and corresponding mounting points on the wall mounting
bracket (Dimensions are in “inches” unless otherwise stated).
the wall with 5 self-tapping screws.
4. At all times securing to the wall
studs is recommended.
Figure 1.3

Indoor unit installation
09
Connective pipe and drainage installation
Fastening the Indoor Unit
Connective pipe
1. For the left-hand and right-hand
piping, remove the pipe cover from
the side panel. The pipe cover can
be kept as it may be used when
relocating the air conditioner to any
other place.
2. For the rear-right-hand and rear-
left-hand piping, install the piping
as shown in figure 1.4. Bend the
connective pipe to be laid at a
height of 1-11/16" or less from the
wall. Fix the end of the connective
pipe.
Drainage
1. Run the drain hose sloping
downward. Do not install the drain
hose as illustrated in figure 1.5.
2. When connecting extension drain
hose, insulate the connecting part
of extension drain hose with a
shield pipe, do not let the drain
hose slack.
1. Pass the piping through the hole in
the wall.
2. Put the upper claw at the back of
the indoor unit on the upper hook
of the wall mounting bracket, move
the indoor unit from side to side to
see that it is securely hooked.
piping
Pipe cover
(left)
Pipe
holder
Pipe cover
(right)
Right piping
Connective
pipe
Indoor unit
outline
Rear right
piping
Rear left
Left piping
1-11/16
"
Do not put the end
of drain hose into water.
Do not block
water flow
by a rise.
Do not block
water flow
by a rise.
Upper hook
Lower hook
Figure 1.4
Figure 1.5

Indoor unit installation 10
Piping and wrapping
1. Bundle the tubing, connecting
cable, and drain hose with tape
securely and evenly as shown in the
sideward figure.
2. Because the condensed water from
rear of the indoor unit is gathered
in ponding box and is piped out of
room, do not put anything else in
the box.
3. Piping can easily be made by lifting
the indoor unit with a cushioning
material between the indoor unit
and the wall.
4. Push the lower part of the indoor
unit up on the wall, Then move the
indoor unit from side to side, up
and down to check if it is hooked
securely. Cushioning
material
Indoor unit
Cable
Ponding
box
Pipe room
Wrapping
belt
Drain hose
Connective
pipe
connection
Attention!!
1. Connect the indoor unit first, then the outdoor unit.
2. Be careful not to let the drain hose slack.
3. Both of the auxiliary piping should be heat insulated.
4. Be sure that the drain hose is located at the lowest side of the
bundle. Locating at the upper side may cause drain pan to overflow
inside the unit.
5. Never intercross nor intertwist the power wire with any other wiring.
6. Run the drain hose sloped downward to drain out the condensed
water smoothly.

Outdoor unit installation
11
Outdoor unit installation
Strong wind
1. Install the outdoor part of the unit
on a flat surface to avoid excess
noise and vibration. A condenser
pad is recommended.
2. Direct the air vent toward an area
without obstacles.
3. Install the unit at the site where
it is exposed to as little wind as
possible, especially in areas where
it is frequently windy.
4. If the installation site is exposed to
heavy winds, such as in coastal
areas, place the unit along the
widest part of the wall or use
protective plates.
5. Be sure there is no obstacle which
blocks exhausting air, including
schrubs or bushes.
Air inlet
Air
inlet
Air outlet
Settlement of outdoor unit. Anchor the
outdoor unit tightly and horizontally
on a concrete or flat mount with a
bolt and nut 2/5" or 5/16" diameter
(Purchased separately).
A (inch) B (inch)
Outdoor unit dimension inch(WxHxD)
30.7x21.3x9.8
31.8x21.9x12.2
21.69000
12000 21.6
10.9
12.8
Capacity (BTU/h)

Refrigerant piping connection 12
Refrigerant piping connection
Unit comes with 24.6' tubing bundle. It is not recommended to cut. If too long,
loop for excess.
Main cause for refrigerant leakage is
due to defect in the flaring work.
Carry out correct flaring work using
the following procedure:
1. Cut the pipes and the cable.
A) Use the piping kit accessory or
pipes purchased locally.
B) Measure the distance between
the indoor and the outdoor unit.
C) Cut the pipes a little longer than
the measured distance.
D) Cut the cable 5ft longer than the
pipe length.
2. Burr removal
A) Completely remove all burrs from
the cut cross section of pipe/
tube.
B) Put the end of the copper tube/
pipe in a downward direction
as you remove burrs in order to
avoid dropping burrs into the
tubing.
3. Put nut on.
Remove flare nuts attached to
indoor and outdoor unit, then
put them on pipe/tube having
completed burr removal. (It is not
possible to put them on after flaring
work)
Note: Keep original bend so not kinking of the tube occurs.
Flaring work
Pipe
Correct Wrong
Oblique Roughness Burr
Pipe
Reamer
Point
down
Flare nut
Cooper tube

Refrigerant piping connection
13
Caution: Excessive twisting may break
the nut, depending on the installation
conditions.
4. Flaring work.
Firmly hold copper pipe in a die in
the dimension shown in the table
below.
Connection Adjustment
OUTER A (inch)
Max. Min.
DIAMETER (inch)
0.05
0.06
0.07
0.09
0.03
0.04
0.04
0.08
1/4
3/8
1/2
5/8
Bar
pipe
Handle
Clamp
handle
Yoke
Red arrow mark
Copper
1. Align the pipes to be connected.
2. Screw the flare nut with your
fingers, and then tighten it with a
spanner and torque wrench, as
shown in figure 1.6.
Flare
nut
Pipings
Indoor unit
tubing
OUTER TIGHTENING ADDITIONAL TIGHTENING
DIAMETER (inch)
1/4
3/8
1/2
5/8
TORQUETORQUE (lbf .in)
132.8 131.6
221.3 230.0
309.7 318.6
398.2 415.9
(lbf.in)
Figure 1.6

14
Electrical work
Electrical work
Electric safety regulations for the initial installation
1. If there is serious safety problem
about the power supply, the
technicians should refuse to install
the air conditioner and explain
to the client until the problem is
solved.
2. Power voltage should meet the
requirements in table 2.1.
3. Over current protection and
circuit disconnect should meet
the requirements in table 2.1 and
the applicable local and national
electrical codes.
Connecting (Power and Control Cable)
• The main power is supplied to the outdoor unit. The field supplied connecting
cable from the outdoor unit to indoor unit consists of four wires and provides
the power for the indoor unit as well as the communication signal and ground
between the outdoor and indoor unit. Two wires are high voltage AC power,
one is low voltage DC signal and one is a ground wire.
• Consult local building codes, NEC (National Electrical Code) or CEC
(Canadian Electrical Code) for special requirements.
4. Ensure the air conditioner is
grounded well.
5. All wiring must comply with local
and national electrical codes and
be installed by qualified and skilled
electricians.
6. An individual branch circuit used
only for this air conditioner must be
available. See table 2.1.
Outdoor FanCompressor Indoor Fan
Operating
Voltage
(Min/Max) RLA LRA FLA Output
Watts Volts FLA Output
Watts
Electrical Data Table 2.1
Capacity
(BTU/h)
System
Voltage
Volts-Ph.-
Freq
MIN. Circuit
Ampacity
(MCA)
Max. Fuse/Circuit
Breaker
Amps(MOP)
12000 115-1-60 10.5 / 0.16
115V-AC
0.19 20 15 25 40
9000 115-1-60 103.5/126.5
103.5/126.5
9.8 / 0.16
115V-AC
0.19 20 15 20 35

Electrical work
15
Connect the cable to the indoor unit
1. The inside and outside connecting
cable can be connected without
removing the front grille.
2. Connecting cable between indoor
unit and outdoor unit shall be
approved polychloroprene sheathed
flexible type cord.
3. Lift the indoor unit panel up,
remove the electrical box cover by
loosening the screw.
4. Ensure the wire color of the outdoor
terminal and indoor terminal
correspond respectively.
5. Wrap the cable not connected to
the terminal block with insulation
tape so that they will not come
in contact with any electrical
components. Secure the cable onto
the control board with the cord
clamp.
cover
Electrical box
Code wire
1.57"
0.39"
Terminal block of indoor unit
To Outdoor Unit
Cable

Electrical work 16
Connect the cable to the outdoor unit
1. Remove the electrical control board
cover from the outdoor unit by
loosening the screw.
2. Connect the connective cables to
the terminals as identified with their
respective matched numbers on
the terminal block of indoor and
outdoor units. The connective cable
to power supply shall be approved
polychloroprene sheathed flexible
cord.
3. Secure the cable onto the control
board with the cord clamp.
4. To prevent the ingress of water,
form a loop of the connective cable
as illustrated in the installation
diagram of indoor and outdoor
units.
5. Insulate unused cords (conductors)
with PVC-tape. Process them so they
could not touch any electrical or
metal parts.
Cover
Screw
2(N) N

Electrical work
17
1. Pressure in the system rises.
2. Operating current rises.
3. Cooling or heating (only for models with heating function) efficiency drops.
4. Moisture in the refrigerant circuit may freeze and block capillary tubing.
5. Water may lead to corrosion of parts in the refrigeration system.
Caution
After the confirmation of the above conditions, prepare the wiring as follows:
1. Never fail to have an individual power circuit specifically for the air
conditioner. As for the method of wiring, be guided by the circuit diagram
posted on the inside of control cover.
2. The screws which fasten the wiring in the casing of electrical fittings are liable
to come loose from vibrations to which the unit is subjected during the course
of transportation. Check them and make sure that they are all tightly fastened.
(If they are loose, it could cause burn-out of the wires.)
3. Specification of power source.
4. Confirm that electrical capacity is sufficient.
5. See to that the starting voltage is maintained at more than 90 percent of the
rated voltage marked on the name plate.
6. Confirm that the cable thickness is as specified in the power source
specification.
7. Always install an earth leakage circuit breaker in a wet or moist area.
8. The following would be caused by voltage drop: vibration of a magnetic
switch, which will damage the contact point, fuse breaking, disturbance of the
normal function of the overload protector.
9. The means for disconnection from a power supply shall be incorporated in the
fixed wiring and have an air gap contact separation of at least 1/8" in each
active (phase) conductors.
Purging the system
Air and moisture in the refrigeration system have undesirable effects as indicated
below:
Therefore, the indoor unit and tubing between the indoor and outdoor unit must
apply leakage test and be evacuated to remove any noncondensables and
moisture from the system.

Purging the system 18
Purging the system with a vacuum pump
1. Check that each tube (both liquid and gas side tubes) between the indoor and
outdoor units have been properly connected and all wiring for the test run
has been completed. Remove the service valve caps from both the gas and
the liquid side on the outdoor unit. Note that both the liquid and the gas side
service valves on the outdoor unit are kept closed at this stage.
2. When relocating the unit to another place, perform evacuation using vacuum
pump.
3. Oil trap should be installed every 16'-25' (no oil trap needed when outdoor
unit installed at a lower place than indoor unit).
4. Pipe length and refrigerant amount for single split type air conditioner.
(see tabel 2.2)
Air purging
Max height
difference (B)
(BTU/h)
Cooling capacity System
Additional amount of
refrigerant to be charged
Connective pipe
length (A)
Use vacuum pump.
Use vacuum pump.
25'~49' 16'
33'
25'~66'
R410a: 0.16ozs/ft (Pipe length-25')
R410a: 0.16ozs/ft (Pipe length-25')
9000 Cooling Only
Cooling Only
12000
Table 2.2
Outdoor unit
Piping length under 16' Piping length 16' or more
Outdoor unit
Oil trap
Indoor unit Indoor unit
(A)
(A)
(B) (B)

Purging the system
19
Caution in handling the packed valve integrated in the
outlets of outdoor unit.
1. Operation of opening packed valve: Open the valve stem until it hits against
the stopper. Do not try to open it further.
2. Operation of closing packed valve: Securely tighten the valve stem with a
special tool. Then securely tighten the valve stem cap with a spanner or the
like. Refer to the table on page 13 for valve cap tightening torque.
Note: There is a charging port integrated in the low side outlet, but not in the
high side outlet. The low side outlet is shown in the sketch map below.
Half union
Refrigerant
AC
D
B
Packed valve
Gas
Indoor unitOutdoor unit
Flare nut
Stopper
Cap
Valve stem
Charge port
Valve body