8
307-930
INSTALLING A HEATED SYSTEM
Use the following procedures to install Model 221-123
Heated System, or to convert an existing Model 222-268
to a heated system. The V iscon
Heater is available in
three voltages (see page 18). Specify which voltage you
desire.
To install the pump, first follow steps 1-3 under
Installing
Pump Model 222-268 on page 7.
Heat causes fluid to expand. If fluid in the heated por-
tion of your system is trapped with no where to ex-
pand, it can cause a system rupture. A system rup-
ture can result in serious bodily injury and property
damage. Be sure your system has an adequate way
to handle heat expansion.
Use flexible hoses between the heater and gun
or, install a properly sized accumulator down-
stream from the heater
or, install a pressure relief valve, pre–set to re-
lieve pressure when it exceeds the system’
s
maximum working pressure
and, never install any shutoff device between the
heater and gun. If you are using a fluid regulator
before the gun, never use it as a shutoff device.
WARNING
The Viscon
Heater must be installed by a qualified
electrician in compliance with all state and local
codes and regulations, to reduce the risk of electric
shock or other serious bodily injury during installation
or operation.
The power supply must match the heater ’s require-
ments (see
Accessories on page 18). Refer to the
Viscon
Heater Manual, 307-805, for further informa-
tion.
WARNING
Installing Heater Mounting Kit 222-269
Before installing the heater, heater mounting kit and
circulating kit, follow the
Pressure Relief Procedure
on page 5. Disconnect all hoses from the pump.
WARNING
NOTE: Reference numbers marked with an asterisk (for
example, 22*) are included in kit 222-269.
Apply pipe sealant (3*) to all male threads except
at swiveling connections.
1. Be sure the wall is strong enough to support the
weight of the heater, hoses, fluid, and stress caused
during operation. Locate the heater wall bracket
(22*) holes 9.25” (235 mm) to the left of the pump
bracket holes, and at the same height. Use the
heater wall bracket as a template to mark the wall.
See
Mounting Dimensions on page 19.
2. Attach the heater wall bracket to the heater mounting
posts with the M8 x 1.25 screws and lockwashers
supplied with the heater (39).
3. Use M8 or 5/16” bolts of the appropriate length and
lockwashers (not supplied) to fasten the heater
bracket to the wall.
4.
If you are converting an existing pump, remove
the fluid filter (8) and long 3/8 npt nipple (9) from the
pump fluid outlet. Discard the long nipple (9). See
Fig. 2.
5. Install the 3/8 npt nipple (28*) in the heater outlet.
Screw the fluid filter (8) inlet onto this nipple. Un-
screw the 1/4 npt nipple (1 1) from the filter outlet.
Screw the elbow (40*) into the filter outlet, and screw
the nipple (11) into the elbow. See Fig. 3.
6. Screw the elbow (23*) into the heater’s inlet. Attach
the heater hose (24*) to the elbow . Attach the rigid
end of the union (25*) to the other end of the hose
(24*). See Fig. 3.
7. Screw the elbow (27*) into the pump outlet. Screw
the check valve (26*) into the elbow. Be sure the ar-
row on the check valve points down. To complete the
heater connection to the pump, screw the swivel end
of the union (25*) onto the check valve (26*).
