Graco 311511G important safety instructions Fluid Circulation, Circulation Through Reactor

Page 31

Fluid Circulation

Circulation Through Reactor

Read Warnings; see page 4. Do not circulate fluid containing a blowing agent without consulting with your material supplier regarding fluid temperature limits.

To circulate through gun manifold and preheat hose; see page 32.

1. Load fluid with feed pumps; see page 21.

Do not install shutoffs downstream of the PRESSURE RELIEF/SPRAY valve outlets (BA, BB). The valves function as overpressure relief valves when set to SPRAY. Lines must be open so valves can automatically relive pressure when machine is operating.

2.Route circulation lines back to respective component A or B supply drum. Use hoses rated at the maximum working pressure of this equipment, see hose manual.

3.Set RECIRC/SPRAY valves (SA, SB) to RECIRC.

SA

BA

SB

 

BB

ti8442a

4.Turn Main Disconnect Switch (R) ON.

5.Open air inlet ball valve.

6.Set temperature targets; see page 22. Turn on heater.

Fluid Circulation

Do not turn on hose heat unless hoses are already loaded with fluid.

7.Set both Air Regulator pressures to start at 15 psi (1.0 bar).

8.Turn PARK/RUN switch to RUN.

9.Turn Pump Mode Function switch to START.

10.Recirculate until desired temperature reaches set point.

11.Turn Pump Mode Function knob to OFF.

12.Turn on hose heat if hose is filled with fluid without air pockets or solvent.

13.Set PRESSURE RELIEF/SPRAY valves (SA, SB) to

SPRAY.

SA

SB

ti8442a

For additional circulation information, refer to manual 309852.

311511G

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Image 31 Contents
Reactor A-20 Related Manuals ContentsApprovals SystemsProportioner 50 ft 15 m 10 ft 3 m PartElectric Shock Hazard Fire and Explosion Hazard Moving Parts Hazard Key for FIG Typical Installation, without CirculationTypical Installation, with Circulation Keep Components a and B Separate Moisture Sensitivity of IsocyanatesFoam Self-Ignition Isocyanate HazardComponent Identification Typical InstallationKey AP Park/Run Switch Controls and IndicatorsFlushing Pressure Relief ProcedureDetermine Power Source SetupLocate Reactor A-20 Electrical Requirements Step One Connect Electrical Cord Configure to Supply PowerTerminal Blocks Power Jumper LocationAir Supply Connection Iso Pump Lubrication System SetupGround System Fluid Supply ConnectionsConnect FTS and Heated Dual Whip Hose Connect Heated Hose Recirculation / Pressure Relief LinesConnect Whip Hose to Gun Fluid Manifold Close Gun Fluid Manifold Valves a and BPressure Check Hose Initial Startup Fluid Temperature Sensor FTS CalibrationLoad Fluid with Feed Pumps To change or enter the set point, proceed as follows Digital Temperature ControllersA1 A2 A3 To change back to Fahrenheit units To change to Celsius unitsFluid Heater Temperature Offset Over Temperature AlarmsHose Heat Manual Mode Supply Wet-Cups with Throat Seal Liquid Spray Spraying SetupSpray Adjustments Shutdown Operation Daily Start-up ProcedureTi2414A Circulation Through Reactor Fluid CirculationCKN Circulation Through Gun ManifoldMaintenance Category Data Technical DataTechnical Data 311511G Graco Information Graco Standard Warranty
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Manual 36 pages 59.71 Kb