Meler MACRO FOAM Series, Инструкция по эксплуатации, Страница: 25 / 88

INSTALLATION
3-5
MA-5127-ENG MACRO FOAM SERIES MELTER MANUAL
Pneumatic connection
If a pneumatically controlled by-pass pressure control valve is installed, the
equipment must have a compressed air supply.
Before connecting the pneumatic power to the melter, make sure the pressure
regulator is completely closed.To do this, turn the regulator handle located on
next to the pressure gauge counterclockwise as far as it will go.
Connect the plant air supply (max. 6 bar) to the melter intake using flexible
tubing with an outside diameter of 6 mm. The equipment is provided with a
quick coupling for this purpose.
Activate the air supply to pass and turn the pressure regulator clockwise.
The ratio between the pneumatic pressure and the hydraulic pressure on the
circuit is 1 to 13 bar.
Warning: A 6 bar on the grid, the maximum pressure on the hydraulic circuit
reaches 80 bar. There is a risk of burns or particle projection. Use thermal
protective gear and goggles.
Hose and applicator connection
Macro Foam series melters use standard Meler components. The entire range
of Meler hoses and applicators may be connected to this equipment.
Up to four hose-applicator outputs may be connected to 50 and 120L Macro
Foam melters, depending on the number of pumps installed.
Warning: When connecting hose-applicator outputs, verify that the connected
power is not above the maximum allowable power for each output.
The Macro Foam series melting equipment is equipped with a hydraulic
distributor for each pump, with 2 possible outputs, depending on the
connections that will be used. Connect the hoses to the distributor according
to the needs of the installation and the ease of connection.
Caution:
• In order to identify each hose-applicator, electrically connect them to
the connector with the same number as the output they use.
• It is preferable to use couplings at a 45° or 90° angle to minimize the
space the hoses occupy. Using straight couplings usually results in
curves with very small radii that may damage the inside of the hose.
• Save the screw-on caps that are removed from the distributor in order
to connect a hose. They may be necessary in the future if a hose is
removed from its location.
• Perform the electrical hose and applicator connections with the
equipment turned off. Failing to do so may result in electrical defects
in theconnection and the appearance of alarm messages on the melter
display.