INSTALLATION & OPERATIONS MANUAL
SPLIT TYPE ROOM AIR CONDITIONER AND HEAT PUMP MODELS
MSC/MSH 9,000 & 12,000 BTUH • 115 VOLT
O
Important Safety Instructions
The following symbols and labels are used throughout this
manual to indicate immediate or potential safety hazards. It is
the owner’s and installer’s responsibility to read and comply
with all safety information and instructions accompanying these
symbols. Failure to heed safety information increases the risk
of personal injury, property damage, and/or product damage.
To prevent the risk of property damage, personal injury, or
death, do not store combustible materials or use gasoline
or other flammable liquids or vapors in the vicinity of thi
appliance.
To prevent heat releated illness or death, do not use this
device for unattended cooling of persons or animals unable
to react to product failure. Failure of unattended air
conditioner may result in extreme heat in area intended
for cooling, causing heat-related illness or death of
persons or animals.
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
Shipping Inspection
Always keep the unit upright; laying the unit on its side or top
may cause equipment damage. Shipping damage, and subse-
quent investigation is the responsibility of the carrier. Verify
the model number, specifications, electrical characteristics,
and accessories are correct prior to installation. The distribu-
tor or manufacturer will not accept claims from dealers for trans-
portation damage or installation of incorrectly shipped units.
Goodman will not be responsible for any injury or
property damage arising from improper service or
service procedures. If you perform service on your
own product, you assume responsibility for any
personal injury or property damage which may result.
© 2011 Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500, Houston, TX 77056
IO-411
August 2011
•
•
Select a location where noise, vibration and hot dis-
charged air will not be an issue.
Do not install where high frequency equipment is used
(wireless equipment, welding machine, medical facility)
as it may interfere with the unit’s operation.
Rooftop Installations
If it is necessary to install the outdoor unit on a roof structure,
ensure the roof structure can support the weight and that proper
consideration is given to the weather-tight integrity of the roof.
Since the unit can vibrate during operation, sound vibration
transmission should be considered when installing the unit.
Vibration absorbing pads or springs can be installed between
the condensing unit legs or frame and the roof mounting as-
sembly to reduce noise vibration.
O
Additional
Drain
Pipe
Tools
Level gauge
Gas leak detector
Vacuum pump
Gauge manifold
Users manual
Thermometer
Screwdriver
Electric drill, hole core drill (65mm)
Flaring tool set
Torque wrenches
1.8kgf.m 13 ft-lb
4.2kgf.m 30 ft-lb
5.5kgf.m 40 ft-lb
6.6kgf.m 48 ft-lb
Hexagonal wrench (4mm)
Wrapping
Tape
Multimeter
Pipe cutter
Measuring tape
Spanner (half union)
Loop the
connective
cable.
PARTS
No.
1
2
3
4
Description
Installation Plate
Quantity
1
8
8
1
1
Clip Anchor
Self-tapping Screw A ST3.9x25
Seal (on selected models
Drain joint
Figure3
NOTE: Copper lines must be insulated independently.
5
IMPORTANT NOTES:
*Connection Pipe Assembly
Liquid Side 1/4" (Φ 6.35)
Gas Side 3/8" (Φ 9.52)
1/2" (Φ12.7)
Remote Control
Self-tapping Screw B ST2.9x10
Remote Control holder
•
A stud finder should be used to locate studs and prevent
unnecessary damage to the wall.
*See
Note
6
•
A minimum pipe run of 10’ (3 meters) is required to mini-
mize vibration and excessive noise.
7
8
9
1
2
1
Indoor Unit Installation
Installation of Mounting Bracket
*Parts must be purchased separately. Consult dealer for pipe sizes.
(Minimum pipe wall thickness of 1/32" (0.7 mm) is recommended)
1. Install the mounting bracket horizontally and securely to
the wall, allowing room for access on either side of the
unit.
NOTE: Parts listed are provided with the unit except where
noted. Any additional parts required must be purchased sepa-
rately.
2 If the wall is constructed of brick, concrete or similar
material, drill eight (8) 3/16” (5 mm) diameter holes in the
wall. Insert the clip anchor for appropriate mounting
screws.
3. Install the mounting bracket on the wall with eight (8)
type “A” screws.
3
NOTE: Install the mounting bracket and drill the holes in the
wall according to the wall structure and the correspond-
ing mounting points on the mounting bracket. (The
mounting brackets vary according to the model.)
Wall
Outdoor
Indoor
Incorrect orientation
of InstallationPlate
Correct orientation
of InstallationPlate
Figure 6
Do NOT install drain hose as shown in Figure 7.
Figure 4
4. Determine the hole positions according to the diagram
detailed in Figures 5A & 5B. Drill one (1) 2.5” hole ( 65mm),
slanting slightly to the outside.
NOTE: Always use wall hole conduit when drilling metal
grid, metal plate, etc.
Do not put the end of
drain hose into water.
Do not block water flow by a rise.
Figure 7
C
D
6. When connecting extension drain hose, insulate the con-
necting part of the extension drain hose with a shield
pipe. Do not allow the drain hose to be slack.
7. REFRIGERANT PIPING INSTALLATION:: For the left-
hand and right-hand piping, remove the pipe cover from
the side panel. (Figure 8.)
Model B (A:31” (790mm), B:10” (265mm), C:4” (100mm),D: 6” (151mm)
Figure 5A
7”(187mm)
6”(150mm)
Figure 8
8. For the rear right-hand and rear left-hand piping, install as
shown in Figure 9.
Figure 5B
Refrigerant Piping & Condensate Piping
Installation:
5. Drain hose should be installed with a slight downward
slope. (See Figure 6.)
Figure 9
To make refrigerant tube connections, refer to Tightening
Connection in the Refrigerant Piping Connection.
4
Indoor Unit Installation
9. Pass the piping through the hole in the wall.
Do not allow piping to hold indoor unit away
from the wall.
Never intertwine power wiring and other wiring.
10. Place the upper claw on the back of the indoor unit on
the upper hook of the installation plate. Move the indoor
unit from side to side to ensure it is securely mounted.
(See Figure 10 ).
Outdoor Unit Installation
NOTE: By placing cushioning material between the in-
door unit and the wall, placement of piping is easier Outdoor Installation precautions
(see Figure 11). REMOVE CUSHIONING MATERIAL
AFTER PIPING IS COMPLETED.
•
Install the outdoor unit on a rigid base to prevent noise
level and vibration.
•
Place the outdoor unit in such a manner to minimize
restriction of discharge air.
Upper Hook
Cushioning
material
Protect the unit from prevailing winds. To ensure the
unit operates correctly, place the unit lengthwise along
a wall or use a dust or shield plate.
Lower Hook
Figure 10
Figure 11
11. Push the lower part of the indoor unit up on the wall.
Move it from side to side, up and down to ensure the unit
is hooked securely.
Figure13B
Figure 13A
Piping and wrapping
Evenly bundle the tubing, connecting cable and drain hose
securely with tape as shown in Figure 12.
•
•
If a wall mount installation is required, the installation
bracket should meet the requirement in the installation
bracket diagram and the wall should be able to support
the installation.
Because the condensed water from the rear of the indoor unit
gathers in the drain pan and is piped out of the room, do not
put anything else in the drain pan.
Be sure there are no obstacles blocking air discharge.
The installation wall should be constructed of brick, con-
crete or another surface of equal strength to hold the
unit safely. Make sure the connections to the wall,
bracket and unit are firmly seated and there are no ob-
structions to the airflow.
Anchoring the outdoor unit
The unit should be tightly anchored, horizontally, with a nut
and bolt ( 10 or 8) on a concrete or similarly rigid, stable
surface.
Figure 12
IMPORTANT NOTES:
•
•
•
•
Indoor unit must be connected before the outdoor unit.
Drain hose should not be allowed to become slack.
Insulate both the auxiliary pipings.
Ensure that the drain hose is positioned at the lowest
side of the bundled tubing. Positioning it at the upper
side can cause the drain pan to overflow inside the unit.
•
Drain hose should be sloped downward to ensure con-
densate will drain correctly.
5
1
Figure 14A
(Figure 15A)
(Figure 15B)
2
Figure 14B
MS* 9 & MS*12
Outdoor
Correct alignment
Mounting Dimensions
Unit Dimensions
Inches/mm (L1xHxW1)
L2 (mm)
W2 (mm)
30" x 23" x 11"
760 x 590 x 285
21"
530
11 1/2"
290
Drain joint installation
Incorrect alignment
Figure 16
NOTE: Drain joints differ slightly according to the different
outdoor units. Inspect your unit and use the installation in-
structions for your specific unit.
For drain joints with seals (Figure 15A):
Refrigerant Pipe Connection
NOTE: The main cause of refrigerant leaks is due to defective
flare connections.
•
Slide the seal onto the drain joint and insert into the
base pan hole of the outdoor unit. Rotate 90° to secure
(see Figure 16).
Make flare connections using the following procedure:
For drain joints without seals (Figure 15B):
1. Remove the flare nuts attached to the indoor and out-
door units. Before flaring, slide them over the tubing. It
is not possible to put them on after flaring tubes.
•
Insert the drain joint into the base pan hole of the out-
door unit until it remains fixed, accompanied by a click-
ing sound.
NOTE: For protection against water condensation off the out-
door unit during heating mode, connect the drain joint with an
extension drain hose (provided by the installer)
6
2. Insert tube in flare tool to measurement “A” in chart.
Flare tubing as shown in Figure 19. Make sure flare is
free of burrs and completely formed to make a leak proof
joint.
Tightening
Torque
(N. cm)
Additional
Tightening
Torque (N. cm)
Outdoor
Diameter (mm)
1500
(153kgf.cm)
1600
(163kgf.cm)
1/4" (Φ 6.35)
3/8" (Φ 9.52)
1/2" (Φ12.7)
NOTE: In order to avoid dropping burrs into the tubing,
angle the end of the copper tube/pipe in a downward
direction as you remove the burrs.
2500
(255kgf.cm)
2500
(265kgf.cm)
Pipe
2500
(255kgf.cm)
3600
(367kgf.cm)
Reamer
Point down
Figure 17
Flare nut
Figure 20
Copper tube
Figure 18
4. Flare Connections: Firmly hold the copper pipe in a die
with the dimensions as in the following table.
Figure 21
Outdoor
Diameter
A (inches & mm)
Model
Do not over-tighten. Excessive torque can
break the nut and/or crimp the pipe.
(inches & mm)
Max.
Min.
1/4" (Φ 6.35)
3/8" (Φ 9.52)
1/2" (Φ12.7)
3/64" (1.3) 1/32" (0.7)
1/16" (1.6) 3/64" (1.0)
1/16" (1.8) 3/64" (1.0)
MS* 09 & 12
MS*09
Electrical
MS*12
Handle
Bar
Bar
Yoke
Cone
Copper pipe
Clamp handle
Red arrow mark
HIGH VOLTAGE!
Figure 19
Disconnect ALL power before servicing or
installing this unit. Multiple power sources
may be present. Failure to do so may cause property
damage, personal injury or death due to electric shock.
Wiring must conform with NEC or CEC and all local
codes. Undersized wires could cause poor equipment
performance, equipment damage or fire.
5. Tightening the connection:
•
Align the center of the pipes and finger-tighten the flare
nut. Using a spanner and torque wrench (Figures 20 &
21) continue tightening the flare nut until the nut is firmly
on the pipe.
7
IMPORTANT NOTES:
•
If there are safety issues concerning the power supply,
the unit should not be connected until safety issues are
resolved.
•
•
•
Ensure that the electrical power supply is sufficient to
safely power and run the unit.
Power voltage should range for 90% - 110% of the rated
voltage.
Main power switch and surge protector should be 1.5
times the capacity of the maximum current of the unit
and should be installed in the power circuit.
Electrical box
cover
Figure 22
•
•
The unit is to be grounded per NEC.
4. Ensure the color of the wires of the outdoor unit and the
terminal numbers are the same as the indoor unit’s.
Connect all wiring as shown in the Electrical Wiring Dia-
gram located on the panel of the outdoor unit.
5. Wrap the wires not connected with terminals with insula-
tion tape, so they will not touch any electrical compo-
nents. Secure the wires onto the control board with the
cord clamp.
•
All wiring must comply with local and national electrical
codes. Installation should be done by qualified electri-
cians.
Connect the Cable to the Outdoor Unit
To avoid the risk of personal injury, wiring to
the unit must be properly polarized and
grounded.
1. Remove the electrical control board cover from the out-
door unit by loosening the screw as shown in Figure 23.
•
This unit should have a individual branch circuit.
NOTE: The wire gauge and the current rating of the fuse or
breaker are determined by the minimum circuit ampacity and
maximum overcurrent protection device that is indicated on
the nameplate, located on the side panel of the unit. Refer to
the nameplate before selecting the wire, fuse and/or breaker.
Connect the Cable to the Indoor Unit
NOTE: Before performing any electrical work, turn off the main
power to the system.
Figure 23
HIGH VOLTAGE!
Disconnect ALL power before servicing.
Multiple power sources may be present.
Failure to do so may cause property damage,
personal injury or death.
2. Connect the connective wires to the terminals, making
sure the numbers on the indoor unit match with the num-
bers on the outdoor unit’s terminal block. (See Models A
and B.)
1. The inside and outside connecting wire can be connected
without removing the front grille.
2. Connecting wire between the indoor unit and outdoor unit
should be approved, polychloroprine sheathed, flexible
cord, type designation H07RN-F or heavier.
3. Lift up the indoor unit panel, remove the electrical box
cover by loosening the screw as show in Figure 22.
8
9. The means to disconnect from a power supply should be
incorporated in the fixed wiring and have an air gap con-
tact separation of at least 1/8” (3 mm) in each active
(phase) conductor.
Terminalson the indoorunit
L
L
N
N
S
S
Leak Testing (Nitrogen or Nitrogen-Traced)
Pressure test the system, using dry nitrogen and soapy water
to locate any leaks in the system. If you wish to use a leak
detector, charge the system to 10 psi using the appropriate
refrigerant, then use nitrogen to finish charging the system to
working pressure. Apply the detector to suspect areas. If
leaks are found, repair them. After repair, repeat the pressure
test. If no leaks exist, proceed to System Evacuation.
Model A
Terminals on the indoor unit
L
N
S
System Evacuation
Condensing unit liquid and suction valves are closed to contain
the charge within the unit. The unit is shipped with the valve
stems closed and caps installed. Do not open valves until
the system is evacuated.
1(L) 2(N)
Terminals on
S
L
N
Power
supply
the outdoor unit
1. Connect the vacuum pump with 250 micron capability to
the service valves.
Model B
2. Evacuate the system to 250 microns or less using suc-
tion AND liquid service valves. Using both valves is nec-
essary as some compressor create a mechanical seal
separating the sides of the system.
3. Secure the wire onto the control board with the cord clamp.
4. To prevent the ingress of water, form a loop of the con-
nective wires as illustrated in the installation diagram of
the indoor and outdoor units.
3. Close the pump valve and hold vacuum for 10 minutes.
Typically, pressure will rise during this period.
5. Insulate unused cords (conductors) with PVC-tape. Route
them so they do not touch any electrical or metal parts.
NOTES:
IMPORTANT NOTES:
After the above conditions have been met, ensure the following
notes are met:
•
•
If the pressure rises to 1000 microns or less and re-
mains steady, the system is considered leak-free; pro-
ceed to start-up.
1. A dedicated power circuit must be in place for the unit.
Wire the unit as shown in the circuit wiring diagram that
is posted inside the control cover.
If pressure rises above 1000 microns but hold steady
below 2000 microns, moisture and/or non-condensables
may be present or the system may have a small leak.
Return to step 2. If the same result is encountered,
check for leaks as previously indicated and repair as
necessary, then repeat evacuation.
2. Upon receipt of the unit, examine the screws fastening
the wiring in the casing of the electrical fittings, since
they may have become loose during transit. All must be
fastened securely to prevent arcing.
•
If pressure rises above 2000 microns, a leak is present.
Check for leaks as previous indicated and repair as nec-
essary then repeat evacuation.
3. Specification of power source.
4. Confirm electrical capacity is sufficient for operation of
the unit.
Connective
Pipe Length
Evacuation
Method
Additional Amount of Refrigerant
to be Charged
5. Maintain the starting voltage at more than 90% of the
rated voltage marked on the name plate.
Less than
16' (5m)
Use
Vacuum Pump
---
6. Confirm the wire gauge is as specified in the power source
specification.
More than
16' (5m)
Use
Vacuum Pump
R410A (Pipe Length-5) x 0.3 oz./ft. (20 g/m)
7. Always install an earth leakage circuit breaker in a wet or
moist area.
Pipe Length and Refrigerant Amount
8. A drop in voltage may be caused by the vibration of a
magnetic switch, causing damage to the contact point,
fuse breakage, disturbance of the normal function of the
overload.
9
Use caution when handling the packed valve:
•
•
When relocating the unit to another place, perform the
evacuation using a vacuum pump.
•
Open the valve stem unit it comes in contact against the
stopper. Do not attempt to open further.
Refrigerant added to the unit must be in liquid form. (Does
not apply to units using R-22.)
Safe Refrigerant Handling
While these items will not cover every conceivable situation,
they should serve as a useful guide.
C
D
WARNING
Refrigerants are heavier than air. They can "push out"
the oxygen in your lungs or in any enclosed space.To
B
avoid possible difficulty in breathing or death:
Figure 24
•
Never purge refrigerant into an enclosed room or
space. By law, all refrigerants must be reclaimed.
If an indoor leak is suspected, throughly ventilate the
area before beginning work.
•
Securely tighten the valve stem cap with a spanner or
similar tool.
•
•
See tightening torque table in Tightening Connection
section.
• Liquid refrigerant can be very cold. To avoid possible
frostbite or blindness, avoid contact and wear gloves
and goggles. If liquid refrigerant does contact your
skin or eyes, seek medical help immediately.
• Always follow EPA regulations. Never burn refrig-
erant, as poisonous gas will be produced.
Safety Check
After completing the electrical installation:
1. Grounding: After grounding the unit, measure the ground-
ing resistance by visually inspecting the unit and by us-
ing a grounding resistance tester, making sure the ground-
ing resistance is less than 4.0 ohms.
WARNING
To avoid possible explosion:
•
Never apply flame or steam to a refrigerant cylinder.
If you must heat a cylinder for faster charging,
partially immerse it in warm water.
Never fill a cylinder more than 80% full of liquid re-
frigerant.
2. Electrical leakage check (to be performed during opera-
tion): During the test operation after complete installation
of the unit, the qualified installer may use the electroprobe
and multimeter to perform the electrical leakage check.
Turn off the unit immediately if leakage occurs.
•
• Never add anything other than R-22 to an R-22 cy-
linder or R-410A to an R-410A cylinder. The service
equipment used must be listed or certified for the
type of refrigerant used.
• Store cylinders in a cool, dry place. Never use a cy-
linder as a platform or a roller.
WARNING
To avoid possible explosion, use only returnable (not
disposable) service cylinders when removing refrig-
erant from a system.
• Ensure the cylinder is free of damage which could
lead to a leak or explosion.
• Ensure the hydrostatic test date does not exceed
5 years.
• Ensure the pressure rating meets or exceeds 400
lbs.
When in doubt, do not use cylinder.
10
•
•
Grasp the panel sides and lift up the panel to an angle
where it remains fixed and a clicking sound is heard.
Test Running
After completing the gas leak check at the flare nut connec-
tions and electrical safety check, perform the test operation.
Press the manual control button to select AUTO or COOL.
The unit will operate under forced AUTO or COOL mode
(see User’s manual for more details).
•
Ensure all tubing and wiring have been properly con-
nected.
•
Make sure both the gas and liquid side service valves
are fully open.
1. Connect the power; press the ON/OFF button on the re-
mote control to turn the unit on.
2. Using the MODE button, select COOL, HEAT, AUTO and
FAN to ensure all the functions are operating.
AUTO/COOL
3. When the ambient temperature is lower than 63°F (17°C),
the unit cannot be controlled by the remote control. To
run in cooling mode, operation can be done manually.
Manually controlling the unit is to be done only when the
remote control is disabled or maintenance is required.
Figure 25
4. Test operation should last approximately 30 minutes.
11
Goodman Manufacturing Company, L.P.
5151 San Felipe, Suite 500, Houston, TX 77056
© 2011 Goodman Manufacturing Company, L.P.
12
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