Initial Startup

Set Temperatures

See Setup, page 15.

1. Turn main power ON

.

2.Press °F or °C to change temperature scale.

3.Press to display target temperatures.

4. To set A

heat zone target temperature, press

or

until display shows desired temper-

ature. Repeat for B and

zones.

NOTE: For zone only, if FTS is disconnected at

startup, display will show hose current (0A). See step 9, page 22.

Do not turn on hose heat without fluid in hoses.

5.Turn on heat zone by pressing . Pre- heat hose (15-60 min). Indicator will flash very slowly when fluid reaches target temperature. Dis- play shows actual fluid temperature in hose near FTS.

Thermal expansion can cause over pressurization, resulting in equipment rupture and serious injury, including fluid injection. Do not pressurize system when preheating hoses.

6. Turn on A and B heat zones by pressing

for each zone.

7.Hold to view electrical currents for each zone.

8.Hold to view heater control circuit board tem- perature.

9.Manual current control mode only:

When in manual current control mode, monitor hose temperature with thermometer. Install per instructions below. Thermometer reading must not exceed 160°F (71°C). Never leave machine unattended when in manual current control mode.

If FTS is disconnected or display shows diag- nostic code E04, turn main power switch OFF

then ON

to clear diagnostic

code and enter manual current control mode.

display will show current to hose. Current

is not limited by target temperature.

Press or to adjust current setting.

To prevent overheating, install hose thermome- ter close to gun end, within operator view. Insert thermometer through foam cover of A compo- nent hose so stem is next to inner tube. Ther- mometer reading will be about 20°F less than actual fluid temperature.

If thermometer reading exceeds 160°F (71°C),

reduce current with key.

22

3A1569B

Page 22
Image 22
Graco A-25 important safety instructions Set Temperatures, Manual current control mode only