Graco 226816 Instructions-Parts List Manual page 6

KEY
A Bleed-type Master Air Valve
B Air Regulator and Gauge
C Ground Wire
D Pump
E Fluid Filter with Drain Valve
Fig. 1
WARNING
To reduce the risk of serious injury, including fluid
injection, splashing in the eyes or on the skin,
burns from hot fluid or heated surfaces, electric
shock or property damage, always follow these
precautions when installing the heater.
1. Shut off the electric circuit.
2. Relieve air and fluid pressure in the system.
3. Have a trained and qualified person install and
wire the heater.
4. Be sure the installation is in compliance with all
local, state, and national codes.
5. Do not install any shutoff devices downstream
from the heater.
6 307363
Installation
HEATED CIRCULATING SYSTEM
F Vis–Con Heater
G Fluid Shutoff Valve
H Fluid Pressure Regulator
J Spray Gun
K Back Pressure Valve
Heat causes the fluid to expand. If fluid in the
heated portion of your system is trapped with
nowhere to expand, it can cause a system rupture.
A system rupture can result in serious injury and
property damage. Be sure your system has an
adequate way to handle heat expansion.
1. Use flexible hoses between the heater and
2. OR, install a properly sized accumulator down-
3. OR, install a pressure relief valve (P – see the
4. Never install any shutoff device between the
L Director Valve
M Siphon tube
N Drain Back Tube
P Pressure Relief Valve
WARNING
gun.
stream from the heater.
Installation drawing above), preset to relieve
pressure when it exceeds the system's maxi-
mum working pressure.
heater and gun. If you are using a fluid regula-
tor before the gun, never use it as a shutoff
device.