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Mechanical Setup
1. Check, and if necessary, tighten the heated hose
connection at the pump outlet.
2. Wrap exposed fittings on the pump outlet with
Nomex insulation and secure insulation using fiber-
glass tape.
3. Fill displacement pump wet cup 2/3 full with Graco
Throat Seal Liquid (TSL).
4. Turn all air regulators to their full counterclockwise
position.
5. Connect a 1/2 in. (13 mm) air line from an air source
to the system air inlet, see F
capable of delivering a minimum of 15 cfm (0.4
3
/m) at 100 psi (0.7 MPa, 7.0 bar). Do not use
m
quick disconnects.
Electrically Connect Hoses
The Therm-O-Flow 20 requires Graco single-circuit
material hoses rated at a maximum of 1250 watts.
1. Securely tighten the 16-pin electrical connectors on
long heated hose leads into 16-socket receptacles
located on the back of the electrical control panel.
See F
. 4.
IG
2. Securely tighten the 8-socket electrical connectors
on short heated hose leads into 8-pin receptacle
located on the dispense valves.
312094K
. 1, page 7, letter (H)
IG
F
. 4: Rear View of Electrical Control Box
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Connect the Electrical Control
Panel to a Power Source
The electrical control panel (F
attached and wired to the ram, however before the sup-
ply unit becomes functional, you must connect the elec-
trical control panel to a power source.
CAUTION
If power and grounding connections are not done
properly, the equipment will be damaged and the war-
ranty will be voided. Before running power to the unit,
make sure the plant electrical service meets the
machine's electrical requirements. Check the label on
the control box for the required voltage and amper-
age.
Have a trained electrician connect the electrical control
panel (Fig. 5) to a grounded electrical source that has
the required service ratings. See Power Requirements
on page 8 and Electrical Schematics on page 49.
Continued on page 12.
Installation
Hose 1/
Applicator 1
Applicator 2
TI10029A
. 5) comes already
IG
11
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Table of Contents
Troubleshooting
