Initial Startup

Digital Temperature Controllers

NOTICE

Do not turn power on to the hose heat until after all hose power connectors are connected.

The proportioner has two temperature controllers that automatically manage the temperature for the primary heater and the hose heat.

NOTICE

To prevent damage to primary heaters and hoses, do not turn on heat controller switches next to tempera- ture controllers until purging procedures are complete and heater and hoses are filled with chemical.

Controller Screens

Push the left side scroll button to cycle through the following screens.

To change or enter the set point, proceed as follows:

1.Ensure red main disconnect switch is ON. Temperature Controllers will illuminate.

Heat Output 

Alarm Normal

Hose Only

A1 A2 A3

2.Press and release Scroll button (A1). Display will read “SP1”. Press and release Up (A2) or Down (A3) button to display set point.

Home “XXXX”

“_SP1”

“_SP2”

“Hxx.x”

“UNIT”

Current temperature reading.

Set Point 1. Use arrow keys to enter set point.

Set Point 2. Only shows on Hose Controller. High temperature devia- tion alarm. Leave set at 30°F (17°C).

This screen indicates power output in percent.

Use the arrow keys to select °F or °C.

Do not change SP2; see Over Temperature Alarm section.

Temperature controller normally displays actual temperature. When illuminated, red “01” display at upper left indicates controller is asking for heat. The “01” disappears when liquid in heater or hose reaches set point temperature. The “01” cycles on and off to indicate temperature maintenance.

3.Press and hold Up (A2) or Down (A3) button to increase or decrease value.

4.After set point is entered, press and release Up (A2) and Down (A3) buttons together to display actual temperature. Actual temperature will also display after a time-out period.

5.To start heaters, turn green control power switch from ON to START. Light within switch will illuminate.

NOTICE

Controllers are factory programmed and are not field programmable. If you encounter problems with a con- troller, order a replacement. Do not change any pro- grammed parameters. Do not substitute with controller from alternate supplier; its use may damage equipment.The heater and hose controllers are not interchangeable.

22

311511G

Page 22
Image 22
Graco 311511G Digital Temperature Controllers, To change or enter the set point, proceed as follows, A1 A2 A3