Bulletin 30-122.2014.04.006
3
Copyright © 2014 Unico, Inc.
(SAC xx.xxxx.xxx.xx)
Installation site selection - Indoor unit
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
• Select an appropriate position from which every corner
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.
• 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).
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)
• 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
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
See Outdoor unit installation manual
ADDITIONAL MATERIAL REQUIRED FOR INSTALLATION (NOT SUPPLIED)
TUBING DESIGN LIMITS
