5
SECTION 3 INSTALLATION
Remove any packing and inspect the
AA-400 Mark IV for damage. Check
that all items have been supplied.
Contact Raychem for assistance or
missing parts if necessary.
Electrical
The provided power cable uses the
following color codes:
Earth – Green/Yellow
Neutral – Blue
Live – Brown
Installation Procedure
Step 1
Attach the fitting on the control unit to a
clean, dry, oil-free compressed-air
source capable of supplying a minimum
of 113.3 l/m at 0.31 MPa (45 psi). The
240-Vac AA-400 Mark IV is supplied
with one of the more common quick-
disconnect air fittings; however, it may
be necessary to replace it with one that
will mate with your particular fittings.
CAUTION
Failure to use clean, dry, oil-free air will
result in severe damage to the AA-400
Mark IV.
Step 2
After connecting the AA-400 Mark IV
to an appropriate air supply, connect the
electrical mains power cord to the
control unit IEC receptacle. Connect the
previously installed IEC plug to a
correct wall receptacle. The AA-400
Mark IV should never be hard-wired to
a mains power supply.
Step 3
Adjust the air-pressure control knob for
a gauge reading of 0.35 MPa (50psi).To
unlock the knob, raise the red plastic
ring below the control knob. Turn the
knob clockwise to increase the air
pressure and flow.
Note
The heating element is powered on only
when the air pressure supplied to the
gun assembly exceeds approximately
0.28 MPa (40 psi). A pressure switch
cuts off power to the element when the
air pressure drops below this point,
protecting the heat gun assembly from
damage due to overheating. The green
HEAT ON indicator light is illuminated
whenever power is applied to the
heating element. This light goes off
when the pressure switch cuts off power
to the element.
Step 4
Within 30 seconds of nozzle air flow,
the air flow temperature should reach
260°C. After a full minute it should
stabilize at the operating temperature.
See Figure 1 below for the air
temperature ranges reached with
various air pressure and voltage
combinations.
CAUTION
Air passing through the eight small
holes in the nozzle cools the plastic heat
gun assembly handle. UNDER NO
CIRCUMSTANCES SHOULD THESE
SMALL HOLES BE CLOSED.
Step 5
To turn the unit off, first reduce the air
pressure to 0.21 MPa (30 psi) for one
minute. The green HEAT ON indicator
light will go off when the pressure
drops below approximately 0.31 MPa
(45 psi), indicating that power to the
heating element has been shut off. After
one minute at 0.21 MPa (30 psi), reduce
the air pressure to zero.
CAUTION
Failure to follow this shutdown
procedure may cause premature
element failure or heat damage to the
plastic heat gun assembly housing.
The power cable that comes with the
AA-400 Mark IV is not fitted with an
IEC plug. It is the responsibility of the
user to install the appropriate plug that
meets local and national requirements.
3 0 0
3 5 0
4 0 0
4 5 0
5 0 0
5 5 0
6 0 0
2 0 5
2 1 0
2 1 5
2 2 0
2 2 5
2 3 0
2 3 5
2 4 0
2 4 5
2 5 0
2
V a c
Temperature Degrees C
0 . 2 8 M P a (4 0 p s i)
0 . 3 1 M P a (4 5 p s i)
0 . 3 5 M P a (5 5 p s i)
0 . 3 8 M P a (5 5 p s i)
Figure 1. Output Air Temperature
The AA-400 Mak IV must be correctly
earthed. Failure to do so could cause
injury to the user.
WARNING
Unpacking
Raychem Interconnect a division of Tyco Electronics International Ltd. Printed in USA No.: TUS-44-3300 Revision: None
Revision Date: February 16, 2000 Page: 5 of 8
Summary of Contents for Raychem Interconnect AA-400 Mark IV
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