Graco 226816 Instructions-Parts List Manual page 7

Mounting the Heater
This Typical Installation is only a guide to setting up
a heated, circulating spray system. For assistance in
designing a system to suit your needs, contact your
Graco distributor.
Use 1/4 in. diameter mounting screws (P) to install the
heat insulators (19) on each side of the bolt holes in
the heater housing (Q). See Fig. 2. Mount the heater
near the object to be sprayed, but outside the spray
area. Be sure the surface on which you mount the
heater can support the weight of the heater, filters,
hoses, and fluid. See the Dimensions on page 22 and
Technical Data on page 20.
Q
P
19
Fig. 2
Install a fluid shutoff valve (G) UPSTREAM from the
heater. This is used to isolate the heater when it re-
quires servicing. DOWNSTREAM, install a fluid filter
and drain valve (E). The filter removes sediment that
may have collected in the heater, which could clog the
spray gun.
Connecting the Hoses
Connect the fluid lines to the 1/2 npt(f) inlet and outlet
of the heater. See the Typical Installation, on page
6.
To minimize heat loss, fluid lines should be insulated
when they are especially long if the environment is
cool.
Installation
When using a flexible power cord, the attached
equipment is no longer explosion proof rated. To
reduce the risk of serious injury from a fire or
explosion, do not use the heater near flammable
materials or vapors.
Locate the heater where operators will not come in
contact with the hot metal surfaces.
Wiring
Remove the heater cover (20). Connect the electric
wires of the circuit to the heater leads (R, S) with
connectors (T). Crimp the terminal (24) onto the
ground wire (U) of the circuit and connect to the heater
ground connection screw (5). See Fig. 3.
All wire nuts used for heater connections must be
rated at 150_C or higher. NEVER use wire nuts
rated less than 150_C; they cannot withstand the
heat generated.
NOTE: Be sure your voltage supply agrees with the
heater voltage. The 120 volt heater draws 18 amps,
and the 240 volt heater draws 9 amps.
Fig. 3
WARNING
WARNING
5
24
U
T
R
S
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