Graco Therm-O-Flow 5 918343 Instructions-Parts List Manual page 11

Air Line Modules
WARNING
PRESSURIZED FLUID HAZARD AND
MOVING PARTS HAZARD
The bleed-type master air valve (C) is
required in your system to relieve air
trapped between this valve and the
pump after the pump air regulator is
closed. Trapped air can cause the pump
to cycle unexpectedly, which could result
in serious bodily injury, including splashing in the
eyes or on the skin and injury from moving parts.
4-Regulator Air Control Module (918416) (Fig. 1 on
page 9)
See the Typical Installation drawing (Fig. 1). The
following components are included with the module:
D Bleed-type Lock-out Master Air Valve (B) is used to
shut off and lock out the air supply from the entire
supply unit.
D Bleed-type Master Air Valve (C) is required in your
system to relieve air trapped between it and the air
motor when the valve is closed (see the Pressur-
ized Fluid Hazard And Moving Parts Hazard
WARNING above). This bleed valve should be
easily accessible and located downstream from the
air regulator. It can be used for a safety lockout.
D Pump Air Regulator (D) controls pump speed and
outlet pressure by adjusting the air pressure to the
pump. It is located on the air control panel up-
stream from the bleed-type master air valve.
D Ram Air Regulator controls the air pressure to the
ram. There are separate air regulators to control
the ram pressure in the up and down directions.
D Pump Air Supply Hose (H) connects the ram air
regulator to the air manifold.
D Follower Blow-off Valve Regulator (L)(N) controls
the air pressure to the follower blow-off valve.
D PHYLA (filter, regulator, lubricator) (A), (D), and (I)
conditions the air to the ram and the pump. The
pump air regulator is located in this assembly. The
ram air is taken from this assembly; an air line tube
connects the PHYLA and the ram air control mod-
ule.
D Auto Depressurization Valve (P) exhausts air from
the system at shut off. The built in timer delays start
up to allow material to heat thoroughly.
Typical Installation
2-Regulator Air Control Modules (not shown)
The following components are included with the mod-
ule:
D Pump Bleed-type Master Air Valve (C) is required in
your system to relieve air trapped between it and
the air motor when the valve is closed (see the
WARNING above). Be sure the bleed valve is
easily accessible from the pump, and is located
downstream from the air regulator.
D Pump Air Regulator (D) controls pump speed and
outlet pressure by adjusting the air pressure to the
pump. Locate the regulator close to the pump, but
upstream from the bleed-type master air valve.
D Ram Air Regulator (not shown) controls the air
pressure to the ram.
D Ram Air Supply Hose (H) connects the ram air
regulator to the air manifold.
D Air Manifold (F) divides the main air supply into
separate lines for the pump and ram.
Air Line Accessories
If you have a 2-Regulator Air Control Module, install
the following accessories, using adapters as neces-
sary:
D Pump runaway valve senses when the pump is
running too fast and automatically shuts off the air
to the motor. A pump that runs too fast can be
seriously damaged.
D Air line lubricator provides automatic air motor
lubrication (standard on the 4-Regulator Air Control
Module).
D Air line filter removes harmful dirt and moisture
from the compressed air supply (standard on the
4-Regulator Air Control Module).
D Accessory bleed-type air valve isolates the air line
accessories for servicing. Locate upstream from all
other air line accessories. This isolates the acces-
sories for servicing.
Vent Hood Kit (617318 on page 56)
The vent hood assembly is designed to efficiently draw
fumes to the factory exhaust system during drumpail
change-out. This assembly requires connection to a
factory ventilation system that draws a minimum air
3
flow of 8.4 m /min (300 scfm). This kit is required for
Polyurethane Reactive (PUR) applications.
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