Stealth Designer SC-30FM-UM User manual

FLOOR/CEILING
INSTALLATION ANUAL
Models:
Indoor Unit
SC-18FM-UM
SC-24FM-UM
SC-30FM-UM
SC-36FM-UM
SC-42FM-UM
SC-48FM-UM
Outdoor Unit
SC-18Z-UM
SC-24Z-UM
SC-30Z-UM
SC-36Z-UM
SC-42Z-UM
SC-48Z-UM

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Suggested Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
System Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Standard Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
nstallation Site nstructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
ndoor Unit nstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12
Outdoor Unit nstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-14
Piping nstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-18
Power and Wiring nstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-20
Testing and nspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-24
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-26
Diagnostic Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27-29
Thank you for choosing a
Universal Floor/Ceiling
Unit for your customer.
Please read this installation manual carefully before installing and starting up the
Universal Floor/Ceiling Ductless System. Take a moment to fill out the product and
installation form on the back cover. Retain both the manual and installation
record for future reference.
Table of Contents

SAFETY PRECAUTIONS
Please read the following before installation.
This is the safety alert symbol. t is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
This mark indicates procedures which, if improperly performed,
might lead to the death or serious injury of the user.
This mark indicates procedures which, if improperly performed, might
possibly result in personal harm to the user, or damage to property.
Notice is used to address practices not related to personal injury.
General Safety Precautions
1. nstructions for installation and use of this product are provided by the manufacturer.
For proper operation, the system must be installed in accordance with this
installation manual.
2. nstallation must be performed in accordance with local laws, regulations and
National Electrical Codes (NEC).
3. f refrigerant leaks while work is being carried out, ventilate the area. Do not allow
refrigerant to come in contact with a flame as it produces toxic gas.
4. Disconnect all electrical power to the indoor and outdoor units until the system is
ready for start-up and checkout.
5. When installing or repairing the system, use only R410A refrigerant. Do not
mix refrigerant with other gases. f air or other gas enter the refrigeration system,
the pressure inside the system may rise to an abnormally high value and cause
damage or injury.
This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their safety.
WARNING
CAUTION
NOTICE
WARNING
2

SYSTE REQUIRE ENTS
REFRIGERANT CHARGE
INDOOR UNIT ELECTRICAL REQUIRE ENTS
PIPE SIZE in (mm)
Notes: nsulate both refrigerant lines, separately.
Communication Cable: Recommended cable - 18/2 AWG stranded bare copper conductors THHN 300V unshielded
wire Note: Use shield cable if installation is in close proximity of RF and EMI transmitting devices.
Unit Size
(BtuH)
18,000 1/4 (6) 1/2 (12) 10 (3) 25(7.5)
164 (50)
49 (15)
24,000 3/8 (10) 5/8 (15) 10 (3) 25(7.5)
164 (50)
49 (15)
30,000 3/8 (10) 5/8 (15) 10 (3) 25(7.5)
164 (50)
49 (15)
36,000 3/8 (10) 5/8 (15) 10 (3) 25(7.5)
164 (50)
49 (15)
42,000 3/8 (10) 5/8 (15) 10 (3) 25(7.5)
164 (50) 49 (15)
48,000 3/8 (10) 5/8 (15) 10 (3) 25(7.5)
230(70) 49 (15)
in Line
ax. Pre-Charge
ax Line ax Elevation
Length Line Length Length (ID over OD)
Liquid Suction/Gas
Line Line
Unit Size Refrigerant Factory System Additional
(BtuH) Type Charge oz (kg)* Charge oz/ft (g/m)
18,000 R410A 49.4 (1.4) 0.3 (30)
24,000 R410A 77.6 (2.2) 0.6 (60)
30,000 R410A 84.6 (2.4) 0.6 (60)
36,000 R410A 123.2 (3.5) 0.6 (60)
42,000 R410A 130.5 (3.7) 0.6 (60)
48,000 R410A 141.8 (4.0) 0.6 (60)
Unit Size Voltage in Circuit ax Overcurrent ain Power
(BtuH) Amps ( CA) Protection ( OCP) Wire Size (AWG)
18,000 208/230v - 1ph 60hz 1.0 15 14
24,000 208/230v - 1ph 60hz 1.0 15 14
30,000 208/230v - 1ph 60hz 2.0 15 14
36,000 208/230v - 1ph 60hz 2.0 15 14
42,000 208/230v - 1ph 60hz 2.0 15 14
48,000 208/230v - 1ph 60hz 3.0 15 14
OUTDOOR UNIT ELECTRICAL REQUIRE ENTS
Unit Size Voltage in Circuit ax Overcurrent ain Power
(BtuH) Amps ( CA) Protection ( OCP) Wire Size (AWG)
18,000 208/230v - 1ph 60hz 17.0 25 10
24,000 208/230v - 1ph 60hz 24.0 40 10
30,000 208/230v - 1ph 60hz 24.0 40 10
36,000 208/230v - 1ph 60hz 29.0 45 8
42,000 208/230v - 1ph 60hz 31.0 50 8
48,000 208/230v - 1ph 60hz 45.0 70 6
*Precharge amount for up to 25-ft of refrigerant pipe.
REFRIGERANT LINE LENGTHS ft (m)
4

• Standard Wrench
• Adjustable/Crescent Wrench
• Torque Wrench
• Hex Keys or Allen Wrenches
• Drill & Drill Bits
• Hole Saw
• Pipe Cutter
• Screw drivers (Phillips & Flat blade)
• Manifold and Gauges
• Level
• R410A Flaring Tool
• Clamp on Amp Meter
• Vacuum Pump
• Safety Glasses
• Work Gloves
• Refrigerant Scale
• Micron Gauge
SUGGESTED TOOLS
5

6
Air inlet
SYSTEM SCHMATIC
Indoor Unit
System Components*
1. Front Cabinet
2. Air nlet
3. Wired Controller
(Optional)
4. Remote Controller
5. Drain Pipe
6. Gas Pipe
7. Liquid Pipe
8. Service Cover
9. Front Panel
Outdoor Unit
Air outlet
Air inlet
9 8
3 4
1 2
76 5
The refrigerant pipe, drain pipe and electrical wiring for this unit should be installed by a
qualified HVAC professional only.
CAUTION
Air Outlet
Power
Supply
*Not all items included with equipment purchase

7
STANDARD PARTS
Indoor Unit Accessories
Outdoor Unit Accessories
No. Name Appearance Qty Usage
1 Nut with Washer 8 Secures the hook on the
cabinet of the unit
2 Remote Controller
and Battery 1+2 Controls the indoor unit
3 Cable Clamp 4 Fastens the insulation
blanket
4 Pipe nsulation 1 nsulates the gas pipe
5 Pipe nsulation 1 nsulates the liquid pipe
6 Template 2
For drilling holes for
mounting indoor unit
7 Flare Nut 1 Connects the gas pipe
8 Flare Nut 1 Connects the liquid pipe
No. Name Appearance Qty Usage
1 Drain Plug 3 Plugs the unused drain hole
2 Drainage Connecter
or 1Connects with field supplied
drain pipe

INSTALLATION SITE INSTRUCTIONS
Indoor Unit
The unit must be installed in a location which can withstand four times the weight of the unit.
nadequate support may result in serious property damage and injuries.
Select a site that allows for the following:
•Ensure the installation complies with the installation minimum dimensions and meets the
minimum and maximum connecting piping length and maximum change in elevation.
• Air inlet and outlet should be clear of obstructions, ensuring proper airflow throughout the room.
• Condensate can be easily and safely drained.
• All connections can be easily made to outdoor unit.
• ndoor unit is out of reach of children.
• A structure strong enough to withstand four (4) times the full weight of the unit.
• Filter can be easily accessed for cleaning.
• Leave enough free space to allow access for routine maintenance.
•
Do not install in a laundry room or by a swimming pool due to chemicals corroding indoor unit coil.
8
WARNING

INSTALLATION SITE INSTRUCTIONS
Outdoor Unit
9
Do not install the unit at a location where the distance exceeds the maximum pipe length indicated
in the table. The maximum length of the connection pipe is listed in the System Requirements section.
CAUTION
WARNING
Outdoor Unit inimum Distances
in (mm)
A 40 (1000)
B 20 (500)
C 20 (500)
D 80 (2000)
E 20 (500)
Air inlet
Air outlet
A
BC D
E
The unit should be installed level on a pad that can support twice the weight of the unit.
f the outdoor unit will be exposed to strong winds, it must be adequately secured.
1.
nstall the outdoor unit at a location that is capable of withstanding twice the weight of the unit.
2. nstall the outdoor unit where it is convenient to connect refrigerant lines to the indoor unit.
3. nstall the outdoor unit where the condensate water can be drained unobstructed during the
heating mode to a safe location.
4. Do not locate the unit where the noise may be objectionable to neighbors.
5. Provide the space shown below, so that the air flow is not blocked and future service and
maintenance can be performed.
Select a site that allows the following:
inimum Outdoor Clearances

INDOOR UNIT INSTALLATION
Indoor Unit Dimensions
odel ABCDH
SC-18FM-UM
48 8 7/8 45 5/8 11 27 1/2
SC-30FM-UM
(1220) (225) (1158) (280) (700)
SC-36FM-UM
SC-42FM-UM
55 7/8 9 5/8 53 1/4 11 27 1/2
SC-48FM-UM
(1420) (245) (1354) (280) (700)
66 7/8 9 5/8 64 3/8 11 27 1/2
(1700) (245) (1634) (280) (700)
Weight (lbs)
86
88
106
106
110
130
INDOOR UNIT DI ENSIONS nches (mm)
10
Preparing Indoor Unit for Installation
1. Remove the air inlet grille from the indoor unit to access screws that secure the side panels by
unhooking grille latches and removing screws.
2. Locate and remove the screw securing right side panel.
Remove right side panel from indoor unit by sliding it
up and off as shown in the figure right.
3. Repeat procedure to remove the left side panel
Begin the indoor unit installation by removing the air inlet grille and both side panels from unit as follows:
Remove the screw
Remove the screw