Great-plains NP4000B Operator Manual User Manual Page 164

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160 2013+ NP4000/A/B Table of Contents Index Great Plains Manufacturing, Inc.
417-199M Table of Contents Index 2014-05-14
Plumbing Diagrams
Convention Liquid Diagrams begin on page 165.
NH
3
Plumbing Diagrams
See page 22 for a narrative.
NH
3
System Elements
The dual-cooler systems (page 163 and 164) differ from
the single-cooler systems (page 161 and 162) as follows:
The inflow from the tank is split after the strainer ,
feeding two coolers .
Cooler outlets are merged prior to flow meter .
Refrigerant tap is split.
Two more tines are dual-tube for vapor dispersal.
The section-control systems (pages 162 and 164) differ
from the single-section systems as follows:
There is a check valve, bleed valve and 3-way flow
divider prior to section flow dividers.
Each section flow divider has a shut-off solenoid valve.
A11. Acme cap A31. Master Shut-Off Valve
A12. Acme inlet A32. Refrigerant Tap
A13. Coupler Inlet Bleed Valve A33. Refrigerant Line
A14. Breakaway Coupler A34. Cooler Refrigerant Inlet
A15. Breakaway Hydrostatic Relief Valve A35. Section Control Check Valve
A16. Coupler Outlet Bleed Valve A36. Section Control Bleed Valve
A17. Supply Hose A37. Section Control Relief Valve
A18. Emergency Shut-off Valve A38. Section Flow Divider
A19. Strainer A39. Section Shut-Off Valves
A20. Strainer Magnets A40. Row Flow Divider(s)
A21. AccuFlow™ Super Cooler (Heat Exchanger) A41. Flow Divider Manifold Inlet
A22. Cooler Intake A42. Flow Divider Pressure Gauge
A23. Cooler Hydrostatic Relief Valve A43. Flow Divider Outlet
A24. Cooler Outlet A44. Flow Divider Plug
A25. Flow Meter A45. Delivery Tube
A26. Drain Cap A46. Coulter Tine (Single)
A27. Temperature Gauge A47. Cooler Vapor Outlets (2)
A28. Pressure Gauge A48. Vapor Tube
A29. Cooler Bleed Valve A49. Coulter Tine (Dual)
A30. Control Valve
Legend:
For more details on components A11 through A49,
see “NH3 System Narrative” on page 22.
Liquid NH
3
Liquid Flow
NH
3
Vapor Vapor Flow
Direction of Flow Exception Flow
A19
A24
A25
A32
A49
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