6
English
WARNING
Do not install in the following locations.
• Locations such as kitchens which contain a lot of mineral oil or steam
in the atmosphere or where oil may splatter on the unit.
Resin parts may deteriorate, causing the unit to fall or leak.
• Locations where sulfurous acids and other corrosive gases may be
present in the atmosphere.
Copper piping and soldered joints may corrode, causing refrigerant
to leak.
• Locations where equipment that produces electromagnetic waves is
found.
The electromagnetic waves may cause the control system to mal-
function, preventing normal operation.
4.
INSPECTING AND HANDLING THE UNIT
At delivery, the package should be checked and any damage should be
reported immediately to the carrier claims agent.
When handling the unit, take into account the following:
1.
Fragile, handle the unit with care.
Keep the unit upright in order to avoid compressor damage.
2.
Choose the path along which the unit is to be brought in ahead of
time.
3.
In order to prevent any damage to the unit during installation, use
slings (cloth) or patch plates and lift the unit referring to figure 4.
4.
Lift the unit preferably with a crane and 2 belts of at least 27 ft. (8 m)
long.
5.
When lifting the unit with a crane, always use protectors to prevent
belt damage and pay attention to the position of the unit’s center of
gravity.
6.
Be sure use the standard supplied accessories and dedicated parts
as installation parts.
(Refer to figure 4)
1.
Patch plates or clothes
2.
Belt sling
NOTE
•
Use belt sling of 13/16 in. (20 mm) width or less which adequately
bears the weight of the product.
5.
UNPACKING AND PLACING THE UNIT
• Make sure the area around the machine drains properly by setting up
drainage grooves around the foundation.
• Make sure the unit is installed level on a sufficiently strong base to
prevent vibration and noise.
• Secure the unit to its base using foundation bolts. (Use four commer-
cially available 7/16 in. (M12) foundation bolts, nuts, and washers.)
• The foundation bolt should protrude 13/16 in.
(20 mm) from the foundation surface.
• Fix 4 foundation bolts.
• Support the unit with the foundation which is
larger than the hatched area shown in figure 5.
(Refer to figure 5)
1.
Front side
2.
Position of foundation bolts
3.
Hole for a foundation bolt
(
φ
11/16 in. (17 mm) holes at 4 corners)
4.
Avoid such a foundation where the unit is supported by
4 corner points.
NOTE
•
In unavoidable circumstances, where the unit has to be installed
either touching or close to a wall; place the unit such that transmis-
sion of vibration can be restricted or minimized. Vibrations can be
dampened by using cushions, foam etc.
NOTE
•
Prepare a water drainage channel around the foundation to con-
densate waste water from around the unit.
•
If the unit is to be installed on a roof, check the strength of the roof
and its drainage facilities first.
•
Make sure the area around the machine drains properly by setting up
drainage grooves around the foundation.
(Condensate water is sometimes discharged from the outside unit
when it is running.)
•
Use a nut with a resin clip plate to protect the nut tightening part from
rusting.
6.
WATER PIPING WORK
• The water pressure resistance of water piping of this outside unit is
285 psig.
• The connection port for water piping is located in the front. The con-
nection ports for drain piping are located in the front and back. When
using the back port, change the cast iron plug from the back to the
front and securely close it.
• In indoor use, piping work should be such that now water drops on
the outer plate.
• The lateral protruding section of the drain piping should be short
(within 15-3/4 in. (400 mm)) and installed in a downward direction.
The diameter of drain pipe should be the same as the diameter of
unit connection (1/2 in.) or more.
• The diameter of water pipe should be the same as the diameter of
unit connection (1-1/4 in.) or more.
• Install an air purge valve in the midway of the water piping to prevent
cavitation.
• After completing the drain piping work, make sure that the water runs
smoothly without any clogging by dust.
• Do not connect the drain outlet to the water outlet.
• Install a strainer (50 mesh or more) in the inlet of water piping within
a distance of 4.9 ft. (1.5 m) from the outside unit.
(If sand, waste or rust particles are mixed in the water circulation
system, metal materials will become corrosive.)
• Install insulation on the inlet/outlet of water piping to prevent conden-
sation and freezing.
At installing insulation on water in/outlet pipe, use Polyurethane form
thickness 3/16 in. (5 mm) for insulation of water piping socket on heat
exchanger.
• Install insulation up to the base of heat exchanger as shown in the
figure 6.
• Install a gate valve for chemical cleaning in an easy position to han-
dle.
• Use water pipes compliant with the local and national codes.
• Run the water pump to flush inside of water piping.
Then, clean the strainer.
• If there is a possibility of freezing, take measures to prevent freezing.
• Tighten securely the connection of water piping and socket with
tightening torque of 220 ft.·lbf. (300 N·m) or less.
(If a large torque is applied, the unit may be damaged.)
(Refer to figure 6)
1.
Air purge
2.
Outlet of water
3.
Inlet of water
4.
Gate valve
5.
Water piping socket
6.
Water piping
7.
Insulation
8.
Heat exchanger
9.
Strainer
10.
Drain valve
11.
Connection port to draining piping
12.
Insulation cover
13.
3-1/8 in. (80 mm) or less
14.
Insulation of water piping socket
15.
Drain piping
13/16 in.
(20 mm)
Resin clip plate
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