Sterling 6017 series installation manual Startup Preparations, Starting the Unit

4 Startup Preparations

4-1 Starting the Unit

UNIT START-UP (WITH MANUAL BLOW-OFF VALVE)

The highly engineered controls and controller make this unit almost self operating. Before you can begin heating, it will be necessary to perform the following start up procedures. This will ensure that all air is vented from the system to prevent fluid degradation and damage to the heater.

1.Open the Return Valve and the Blow-Off Valve. Make sure the drain valves are closed and plugged.

2.Add fluid to the reservoir tank until the level is near the top of the sight glass.

3.Close the Return Valve inside the unit.

4.Depress the "Pump Start" button to start the pump. Check motor rotation by observing the pressure gauge. If the gauge indicates positive pressure, rotation is correct. If not, disconnect power and reverse the incoming power leads.

5.As fluid is drawn out of the reservoir tank to fill the process, the fluid level will fall in the tank. Continue to add fluid to maintain the level about 4 inches from the bottom of the sight glass.

!CAUTION

You must purge the system of air before the heating cycle.

Personal injury and system damage can occur from a pressurized system.

6.Air and Oil will be vented through the Blow-Off Valve and into the reservoir tank.

7.After the unit stops requiring more oil and has at least 5 psi of pressure, open the Return Valve half way.

8.Once the unit has stopped requiring more oil again and has at least 10 psi of pressure, select a set point of 100°F (38°C) and switch unit into the "Auto" mode. As the oil warms up, viscosity will decrease, and the pressure will fall.

9.In 2-minute intervals increase the setpoint to 150°F (66°C) and 200°F (93°C).

6017 Series Hot Oil Large Temperature Control Units Page 29