GSI Outdoors PNEG-377 service manual Starting The Dryer, Setting Gas Pressure

Fan and Heater OPERATING PROCEDURE

Starting The Dryer

After heater power is turned on, the fan must be turned on. Attempting to start the dryer without the air switch indicating there is airflow will cause an air- flow alarm to go off when the start switch is depressed. Theairflowalarmissimplytheentiredisplaygoingblank, and the "NO AIRFLOW" message flashing for a few seconds. The display must show "AIRFLOW" before the dryer can be started.

To start the dryer, just push the "START" switch. The first message to come up will be the "PURGE" message--the drying process begins with a 10 sec- ond purge.

When multiple heaters are connected together, drying may be started from any heater control.

Setting Gas Pressure

1.At heater turn toggle switch to "ON" position.

2.Press the "PROGRAM TEMPERATURE" but- ton.

3.Use the increase or decrease button to set the "PLENUM HIGH LIMIT SET POINT" to de- sired setting (100°-160°*).

4.Press the "PROGRAM TEMPERATURE" but- ton to continue to set the "CYCLE SETPOINT". (hi-lo units only)

5.Use the increase or decrease buttons to set the "CYCLE SET POINT" to desired setting (90°- 150°*) (hi-lo units only).

6.Press "programs temperature" button to continue to set the desired "relative humidity" setting, lower setting will run heater longer. (humidity sensor units only) Use arrow keys to set.

Programming the temperature differential.

7.Press the "PROGRAM TEMPERATURE" but ton to continue to set the "TEMPERATURE DIFFERENTIAL".

8.Use the increase or decrease buttons to set the "TEMPERATURE DIFFERENTIAL" to 10°*.

9.Press "progam temperature" button to continue to set "relative humidity differential". Use ar- row keys to adjust to 5%. ( Hudidity sensor units only).

10.Open all manual gas shut off valves, on and to the heater unit.

11 Start the fan unit.

12.Make sure that the blade is spinning in the right direction. If not place the toggle switch in the "OFF" position and correct the problem.

13.After the fan reaches full speed the display should read "AIRFLOW" in the upper right hand corner. If not adjust air switch. (See page 19)

14.Press the start button on the heater control.

15.After 10 seconds the burner should ignite. If not, turn "OFF" the toggle switch and then back "ON". Repeat 12-15.

*Temperatures are fahrenheit.

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