Refrigerant Pipe Connection - Airwell AWAU-YCV080-H11 Manuel D'installation

Installation instruction
(1) Using the windshield
• If the coating on the fastening area is stripped off, the nuts rust easily.
• Dimensions (top view) (unit of measurement: mm)
(5) Transportation
• In transportation, please don't dismantle the packaging, and move the unit to the installation location as closely as
possible.
• If the packaging must be dismantled, hang up the unit with rope against damage.
• Don't hang the unit only at two points. When hanging the unit, don't sit on the unit. The unit should be upright.
• When removing the unit with the forklift, put the fork into the special hole at bottom of the unit.
• When being hanged, the rope should be 4 pieces of steel cable with over 6mm diameter.
• Put the cushion at the contact section between steel cable and the unit against the distortion or damage.
A. Refrigerant pipe connection
Pipe connection method:
• To ensure the efficiency, the pipe should be as short as possible.
• Daub the refrigerant oil on the connector and the flare nut.
• When bending the pipe, the bending semi-diameter should be as large
as possible against the pipe being broken or bent.
• When connecting the pipe, aim at the center to thread the nut by hand
and tighten it with the double spanners.
• Don't let the impurity such as sand, water etc into the pipe.
Cautions in piping installation:
• When welding the connector with hard solder, charge nitrogen into the pipe
against oxidation. Or the oxygen film in the pipe will clog the capillary and the
expansion valve, even caue the deathy accident.
• The refrigerant pipe should be clean. If the water and the other impurity enter the pipe, charge the nitrogen to clean the
pipe. The nitrogen should flow under the pressure of about 0.5Mpa and when charging the nitrogen, stop up the end of
the pipe by hand to enhance the pressure in the pipe, then loose the hand (meanwhile stop up the other end).
• The piping installation should be executed after the stop valves are closed.
• Before welding the valve and the pipes, use the wet cloth to cool down the valve and the pipes.
• When the connection pipe and the branch pipe need to be cut down, please use the special shears and cannot use the
saw.
(2) Near wall installation
Wind deflector
Fierce wind
580
190 190
When fastening and loosing the nut,
operate with double spanners, because
only one spanner cannot execute firmly.
If threading the nut as not aiming at
the center, the screw thread will be
damaged, further it will cause leakage.
7
Fierce wind
Spanner
Connector
Nut
Spanner