User's Manual

Component Identification

3A2954D 9

Fluid Connections and

Accessories

(FIG.5)

1. Install a fluid shutoff valve (T) in the heater’s

3/4 in. npt(m) fluid inlet. Do not overtighten. Connect

the fluid supply line to the valve.

To handle fluid expansion caused by heat:

• Use flexible hoses between heater and gun.

• Install a properly sized accumulator down-

stream from the heater.

• Install a pressure relief valve (X) pre-set to

relieve pressure when it exceeds the system

maximum working pressure.

2. If feeding an airless spray gun, install a fluid

filter (L), drain valve (M), and fluid pressure regula-

tor (N) near the heater’s 3/4-14 npt(f) fluid outlet.

Then connect the fluid outlet line.

To prevent serious injury caused by component or

equipment rupture:

• Never install a shutoff device between the heater

and gun as this will trap the heated fluid and not

allow for expansion.

• Never use a fluid regulator as a shutoff device if it

is installed between the heater and gun

• Provide a means for adequately handling fluid

expansion caused by heat.

NOTICE

The RTD sensor must always be mounted on the out-

let side of housing (67). If you plumb the outlet to the

left side, swap position of sensor (88) and plug (82).

FIG. 5: Fluid Connections and Accessories

ti20056a