Heavy Duty Balanced Opposed Compressors - Ariel Corporation

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Section 2 - Instrumentation For Models: JGH:E:K:T DNFT Installation 1. Loosen the Allen set screws on the DNFT and remove magnet housing. Do not remove magnet, spring, or spacer from magnet housing. 2. Remove piston enclosure plug from end of desired divider valve. The DNFT installs on any of the divider valves of the divider block. The DNFT requires the correct magnet assembly to match the divider valve manufacturer (see Fig. 2-6). NOTE: Do not install a DNFT on Lincoln divider valves with cycle indicator pins. 3. If applicable, verify o-ring or metal gasket is in place on magnet housing. Thread magnet housing into end of divider valve. Torque to 15 foot pounds maximum. 4. Slide DNFT all the way onto hex of magnet housing. Torque Allen set screws on hex of magnet housing to 25 inch pounds, maximum. 5. The LED on the DNFT indicates each divider valve cycle to allow lubricator pump adjustment for <strong>Ariel</strong> recommended cycle time and oil consumption. If the LED fails to blink during compressor operation or by manually pumping oil into the divider valve, then the DNFT requires adjustment. 6. The divider valve must cycle during DNFT adjustment. To cycle it, either run the compressor or manually pump oil through the distribution block with a hand priming pump. 1 2 3 4 5 6 7 8 7. To adjust, slide DNFT all the way onto hex of magnet housing. Tighten Allen set screws to 25 inch pounds maxi- 12S mum. A blinking LED indicates correct adjustment. If the LED fails to blink with divider valve cycling, slide DNFT 12T 9 back on the hex of the magnet housing in 1/16" increments until it does. 10 8. Make all conduit and connections appropriate for area classification. Support conduit and fittings to avoid bending the magnet housing. 9. After DNFT installation and before compressor start-up, purge all air from divider block lubrication system with a purge gun. 1. Divider Valve Piston 2. Magnet 3. Magnet Housing 4. O-Ring 5. Allen Set Screws (2) SBCO & Trabon O-Ring Seal 7/16”-20 Trabon Metal Gasket Seal 7/16”-20 (1994 or earlier) Lincoln O-Ring Seal 7/16”-20 Extended Nose FIGURE 2-6 Typical DNFT Magnet Assemblies 6. LED 7. Control Housing 8. Wire Leads (7) 9. Divider Valve 10. Piston Enclosure Plug FIGURE 2-7 Typical DNFT Installation NOTE: When installing multiple DNFTs, wire each to a separate alarm circuit of the control panel, annunciator, or PLC to simplify lubrication system and DNFT troubleshooting. PAGE 2-8 3/11
For Models: JGH:E:K:T Section 2 - Instrumentation Programmable DNFTs Programmable DNFTs come with a small LCD screen to display total divider valve cycles (Mode 1), cycle time of divider valve in seconds (Mode 2), total pints of oil used (Mode 3), or daily pump rate in pints (Mode 4). Operators can also adjust alarm time in Mode 1. CAUTION: Program the DNFT before installing it on a divider valve. Do not program a DNFT mounted on a divider valve while the compressor runs; it will shut down the compressor. To program a mounted DNFT, first remove it from the divider valve. To program: Open Loop Mode Closed Loop Mode Orange Orange Control Panel, Annunciator, Violet* or PLC Violet* Yellow Proximity Switch Green *Insulate Violet Ground wires from each other & ground. FIGURE 2-8 A-10754 Programmable DNFT Wiring Connections for Unit in Operation 1. Insert the programming magnet into the 1/8" recessed opening on the face of the DNFT. The current programming mode (1, 2, 3, or 4) immediately displays on the LCD followed by "0" 2 seconds later. "0" indicates the current mode is ready for programming. 1 2 3 4 5 6 7 8 1. Magnet 2. Magnet Housing 3. Allen Set Screws 4. LED 5. Control Housing 6. LCD FIGURE 2-10 Typical Programmable DNFT 3/11 PAGE 2-9 9 Orange Orange Control Panel, Annunciator, Violet* or PLC Violet* Yellow Proximity Switch Green Ground Open Loop Mode Closed Loop Mode Red Red Orange* Yellow dedicated switch closure to monitor each divider valve cycle. Green Ground Control Panel, Annunciator, or PLC *Insulate wires from each other & conduit. Red* Orange Orange FIGURE 2-9 A-10753 and A-10772 DNFT Wiring Connections for Unit in Operation *Short Violet wires together & insulate them from ground. Yellow dedicated switch closure to monitor each divider valve cycle. Green Ground Control Panel, Annunciator, or PLC *Insulate wires from each other & conduit. 7. 1/8” Recessed Opening for Programming Magnet 8. Wire Leads (7) 9. Programming Magnet 2. If the desired programming mode does not display, remove and re-insert the programming magnet into the recessed opening until it does. Leave the programming magnet in the recessed opening when the desired programming mode displays. 3. Select one of the programming modes below: a. Mode 1 - LCD displays total divider valve cycles; program alarm time.
Page 1: Maintenance and Repair Manual For J
Page 4 and 5: For Models: JGE:H:K:T Oil Strainer.
Page 6 and 7: For Models: JGE:H:K:T SECTION 5 - S
Page 8 and 9: For Models: JGH:E:K:T FIGURE 4-23
Page 10 and 11: For Models: JGH:E:K:T General Safet
Page 12 and 13: For Models: JGH:E:K:T Ariel Contact
Page 14 and 15: Section 1 - Tools For Models: JGH:E
Page 16 and 17: Section 1 - Tools For Models: JGH:E
Page 18 and 19: Section 2 - Instrumentation For Mod
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Section 4 Part Replacement For Mode
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Section 5 - Start Up For Models: JG
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Section 6 - Troubleshooting For Mod
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Section 6 - Troubleshooting For Mod
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Appendix A Ariel Fasteners and Torq
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Appendix B - Clearances For Models:
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Appendix C - Frame Specifications F
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Appendix C - Frame Specifications F
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Appendix D Compressor Clearance, Oi
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Heavy Duty Balanced Opposed Compressors - Ariel Corporation

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