Unico IS12MPA iSeries, IS24MPB iSeries, IS12MPA, U1218*-1EA2, M2430B*1-EA2 Installation Instructions Manual
...
INSTALLATION INSTRUCTIONS
- High-wall indoor unit -
OPERATING LIMITS
Cooling Maximum conditions
Outdoor temperature : 122 °F (50°C) D.B.
Room temperature : 90 °F (32°C) D.B.
73 °F (23°C) W.B.
Heating Maximum conditions
Outdoor temperature : 75 °F (
24°C) D.B.
65 °F (18°C) W.B.
Room temperature : 91 °F (27°C) D.B.
Cooling Minimum conditions
Outdoor temperature : 5 °F (-15°C) D.B.
Room temperature : 50 °F (10°C) D.B.
17 °F (6°C) W.B.
Heating Minimum conditions
Outdoor temperature : -25 °F (-32°C) D.B.
Room temperature : 41 °F (5°C) D.B.
Item
Qty
Description
1 1 Remote control
2 2 AAA batteries
1
2
A - B - C - D = indoor unit size
Size
Indoor Unit Model Number
A
IS12MPA
B
IS24MPB
ACCESSORIES SUPPLIED WITH THE WALL MOUNT INDOOR UNIT
Power Supply:
208-230V, 1 ph, ~ 60 Hz
Outdoor - Indoor unit combinations:
See Outdoor unit installation manual.
Bulletin 30-122.2014.04.006 1 Copyright © 2014 Unico, Inc.
(SAC xx.xxxx.xxx.xx)
IMPORTANT!
WARNING
CAUTION
WARNING
When wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN
SHOULD ATTEMPT TO WIRE THIS SYSTEM
Please read before installation
This air conditioning system meets strict safety and operating
standards.
For the installer or service person, it is important to install
or service the system so that it operates safely and efficiently.
For safe installation and trouble-free operation, you
must:
• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state and national electrical codes.
• Pay close attention to all warning and caution notices
given in this manual.
• The unit must be supplied with a dedicated electrical
line.
This symbol refers to a hazard or unsafe practice which
can result in severe personal injury or death.
This symbol refers to a hazard or unsafe practice which
can result in personal injury or product or property damage.
If necessary, get help
These instructions are all you need for most installation
sites and maintenance conditions.
If you require help for a special problem, contact our
sale/service outlet or your certified dealer for additional
instructions.
In case of improper installation
The manufacturer shall in no way be responsible for improper
installation or maintenance service, including failure to follow
the instructions in this document.
SPECIAL PRECAUTIONS
• Ground the unit following local electrical codes.
• The Yellow/Green wire cannot be used for any connection
different from the ground connection.
• Connect all wiring tightly. Loose wiring may cause
overheating at connection points and a possible fire
hazard.
• Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
• Do not use multi-core cable when wiring the power supply
and control lines. Use separate cables fo r each type of line.
When transporting
Be careful when picking up and moving the indoor and
outdoor units. Get a partner to help, and bend your knees
when lifting to reduce strain on your back. Sharp edges or
thin aluminum fins on the air conditioner can cut your fingers.
When installing...
... In a ceiling or wall
Make sure the ceiling/wall is strong enough to hold the unitweight. It may be necessary to build a strong wooden or
metal frame to provide added support.
... In a room
Properly insulate any tubing run inside a room to prevent
"sweating", which can cause dripping and water damage to
walls and floors.
... In moist or uneven locations
Use a raised concrete base to provide a solid level
foundation for the outdoor unit.
This prevents damage and abnormal vibrations.
... In area with strong winds
Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.
... In a snowy area (for heat pump-type systems)
Install the outdoor unit on a raised platform that is higher than
drifting snow. Provide snow vents.
When connecting refrigerant tubing
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of
the flare and union tubes before connecting them; screw
by hand and then tighten the nut with a torque wrench
for a leak-free connection.
• Check carefully for leaks before starting the test run.
• During installation, connect before the refrigerant system
and then the wiring one; proceed in the reverse order
when removing the units.
• Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked, to ensure
the grounding.
• Highly dangerous electrical voltages are used in this
system. Carefully refer to the wiring diagram and these
instructions when wiring.
Improper connections and inadequate grounding can cause
accidental injury and death.
Bulletin 30-122.2014.04.006 2 Copyright © 2014 Unico, Inc.
(SAC xx.xxxx.xxx.xx)
NOTE:
Depending on the system type, liquid and gas lines may
be either narrow or wide. Therefore, to avoid confusion, the
refrigerant tubing for your particular model is specified as
narrow tube for liquid, wide tube for gas.
When servicing
• Turn the power OFF at the main power board before
opening the unit to check or repair electrical parts and
wiring.
• Keep your fingers and clothing away from any moving
parts.
• Clean up the site after the work, remembering to check
that no metal scraps or bits of wiring have been left inside
the unit being serviced.
• Ventilate the room during the installation or testing the
refrigeration system; make sure that, after the installation,
no gas leaks are present, because this could produce
toxic gas and dangerous if in contact with flames or heatsources.
Installation site selection - Indoor unit
INDOOR UNIT SIZE
SMALL TUBE (LIQUID LINE)
LARGE TUBE (VAPOR LINE)
OUTER DIAMETER
MIN. THICKNESS
OUTER DIAMETER
MIN. THICKNESS
A
0.25" (6,35 mm)
0.031" (0,8 mm)
0.375" (9,52 mm)
0.031" (0,8 mm)
B
0.25" (6,35 mm)
0.031" (0,8 mm)
0.500" (12,70 mm)
0.031" (0,8 mm)
Tools required for installation (not supplied)
1. Standard screwdriver
7. Hacksaw
12. Tube flaring tool
2. Phillips head screwdriver
8. Drill bits 5/16" (8 mm) dia.
13. Torque wrench
(Yellow Jacket #60650 or equal)
3. Knife or wire stripper
9. Hammer
14. Adjustable Wrench
4. Tape measure
10. Drill
15. Reamer (for de-burring)
5. Level
11. Tube cutter
16. Hex. key
6. Sabre saw or hole saw
ADDITIONAL MATERIAL REQUIRED FOR INSTALLATION (NOT SUPPLIED)
TUBING DESIGN LIMITS
AVOID
• Direct sunlight.
• Nearby heat sources that may affect unit
performance.
• Areas where leakage of flammable gas may be
expected.
• Locations where large amounts of oil mist may occur
(such as in kitchen or near factory equipment) because
oil contamination can cause operation problems and
may deform plastic surfaces and parts of the unit.
• Unsteady locations that will cause noise or possible
water leakage.
• Locations where the remote control unit will be
splashed with water or affected by dampness or
humidity.
• To make holes in areas where electrical wiring or
conduits are located.
DO
of the room can be uniformly cooled.
• Select a sufficiently strong location to support the
weight of the unit.
• Select a location where tubing and drain hose have
the shortest run to the outside.
• Allow access for operation and maintenance as well
as unrestricted air flow around the unit.
Installation site selection - Outdoor unit
AVOID
• Heat sources, exhaust fans.
• Direct sunlight.
• Damp, humid or uneven locations.
• To make holes in areas where electrical wiring or
conduits are located.
DO
• Choose places as cool as possible and well
ventilated.
• use lug bolts or equal to bolt down the unit, reducing
vibration and noise.
• Select an appropriate position from which every corner
• Deoxidized annealed copper tube for refrigerant tubing connecting the units of the system; it has to be insulated with
foamed polyethylene, minimum thickness 5/16 inch (8 mm).
• Refrigerant: R410A (if length exceeds standard pre-charge amount)
• Drain line (if needed): Plastic tubing (I.D. 3/4 inch [18 mm]).
• Lubrication oil for flare connections (about 1 oz. [30g]).
• Communication cable: 2-wire shielded cable, 18 ga. (minimum)
• Electric wire: use insulated copper wires per local codes.
• Tubing insulation
See Outdoor unit installation manual
Bulletin 30-122.2014.04.006 3 Copyright © 2014 Unico, Inc.
(SAC xx.xxxx.xxx.xx)
6.0 (150)
B
A
6.0
(150)
10.0 (250)
2.0
(50)
80.0 (200 0) 6.0
(150)
67.0 (1 700)
43.7 ( 1110) 30.0 (760)
A B
Al l d im e n si o n s in in c h e s ( m m ) .
ø 3/16"
(5 mm)
NO
NO
YES
INDOOR UNIT
A
BECFGHD
Minimum operation and maintenance area.
Remove and discard the set screw on the rear panel.
Tubing connections from the rear. Use the rear panel
as a template. Check the horizontal position with the
level. Mark the holes to be made.
Drill a 2.5 inch (65 mm) diameter hole. Insert a 2 inch
PVC pipe and secure in place.
Press the 2 marks on the frame cover and disengage
the stationary tabs from the frame.
The unit can be connected in five directions: rightrear, left-rear, left-side and right-downward.
Prepare wall for attachment of rear panel. Use
anchors (not included) as appropriate.
Use the screws to fix the rear panel to the wall. Make
sure the panel is flush against the wall and level. Any
space between the wall and unit will cause noise and
vibration.
Bulletin 30-122.2014.04.006 4 Copyright © 2014 Unico, Inc.
(SAC xx.xxxx.xxx.xx)
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