Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Heavy Duty Balanced Opposed Compressors - Ariel Corporation Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Section 2 - Instrumentation For Models: JGH:E:K:T • To set alarm time, press and release the spring-loaded programming magnet assembly until the desired alarm time in seconds displays on the LCD. Set alarm time from a minimum of 20 seconds to a maximum of 255 seconds. • Remove programming magnet. DNFT displays total divider valve cycles if left in this mode and alarm time is now set. b. Mode 2 - LCD displays cycle time of divider valve in seconds. • Remove programming magnet with Mode 2 dispays. LCD counts each divider valve cycle in seconds, counting up from zero until the divider valve completes one full cycle. When divider valve completes one full cycle, the LCD resets to zero and repeats the count until another cycle is completed. The LED blinks in all modes to indicate each divider valve cycle. This blink enables the operator to set pump rate. c. Mode 3 - LCD displays total pints used; program divider valve total. • To set divider valve total, add the total of the divider valve assembly on which the DNFT will be installed. Example: 24 + 24 + 24 = 72. • Press and release the spring-loaded programming magnet until the divider valve total displays on the LCD. Maximum value: 120. • Remove programming magnet. The DNFT displays total pints on the LCD if left in this mode. d. Mode 4 - LCD displays pump rate in pints per day. • Remove programming magnet with Mode 4 dispays. LCD displays pump rate in pints per day. This mode requires a minimum 4 second cycle time. The DNFT stores all programmed information until the operator inserts the programming magnet into the recessed opening, selects Mode 1 or Mode 3, and presses the spring loaded magnet assembly. This action resets the unit to zero and allows entry of a new value. DNFT Battery Replacement The DNFT operates on a field-replaceable lithium battery that should last six to ten years. If battery voltage drops below normal operating levels, the DNFT shuts down and the compressor cannot be restarted until the battery is replaced. CAUTION: Do not open a DNFT in an explosive gas atmosphere. 1 9 8 PAGE 2-10 3/11 2 3 4 6 5 7 1. 2. 3. 4. Shut down compressor. Disconnect DNFT wiring Use 1/8 inch Allen wrench to loosen Allen set screws and remove control housing to a safe atmosphere. Use 3/8 inch ratchet wrench to remove pipe plug. 1. 2. 3. 4. Magnet 5. Polarized 8. #22 AWG Housing Connector 18” (0.46 m) Magnet 6. Field Leads (7) O-Ring Replaceable 9. Allen Set Battery Screws (2) Control Housing 7. 1/2” Pipe Plug FIGURE 2-11 Typical Digital No-Flow Timer Switch (DNFT) 5. Remove battery and disconnect from polarized connector. 6. Connect new battery to polarized connector. 7. Insert new battery and reinstall pipe plug. 8. Place DNFT control housing on the magnet housing in its original position and tighten set screws. Reattach wiring and conduit. 9. To verify DNFT operation, pre-lube the system and check for LED blink.
For Models: JGH:E:K:T Section 2 - Instrumentation Troubleshooting DNFT’s 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. Problem LED does not blink and control panel indicates lube no-flow. (see also Erratic Shutdown) Rupture disc blows and divider valve seizes after DNFT installation. Erratic shutdown or LED blink. Possible Cause Improperly adjusted DNFT. Broken spring or magnet in magnet housing. Low battery voltage. Bent magnet housing. Wrong magnet housing installed on divider valve. Air or debris in divider valve assembly. Faulty wiring from DNFT to control panel or air in system (see above for air in system). Faulty lube pump. Solution Loosen set screws, slide DNFT all the way onto hex of magnet housing and torque to 25 inch pounds max. (Do not over tighten). Either pump clean oil through lubrication system with a purge gun or run the compressor to cycle the divider valve. If necessary, slide DNFT back in 1/16“ increments until LED blinks with each divider valve cycle. Loosen set screws, remove DNFT from magnet housing. Remove magnet housing from divider valve. Remove magnet, spring, and spacer and check for damage. Replace damaged components. Re-install magnet housing on divider valve and DNFT on magnet housing. If necessary, adjust DNFT, check for LED blink. Purge air from system with purge gun. Remove battery from DNFT and test it. Replace battery with a factory recommended replacement lithium battery if voltage is below 2.5 volts. Loosen set screws, remove DNFT from magnet housing. Check for damaged or bent magnet housing. Remove magnet assembly from divider valve. Replace magnet housing, magnet, spring, and spacer. Re-install new magnet housing on divider valve and DNFT on magnet housing. If necessary, adjust DNFT, check for LED blink. Purge air from system with purge gun. Loosen set screws and remove DNFT from magnet housing. Check for correct magnet housing for divider valve manufacturer. Remove and replace with correct magnet housing. Re-install DNFT on new magnet housing. If necessary adjust DNFT, check for LED blink. Purge air from system with purge gun. Check system pressure to verify oil flows to divider valves. If needed, install pressure gauge to monitor lubrication system operation: • Loosen outlet plugs in front of valve blocks. Purge lubrication system with a purge gun until clean, clear, air-free oil flows from plugs. • Loosen each piston enclosure plug individually to purge air from behind piston. Do not remove piston enclosure plugs. Tighten all divider valve plugs. Adjust DNFT. To ensure proper lubrication system operation, all tubing and components MUST be filled with oil and free of air before start-up. A-10753 A-10772 • Normally Open - Attach ohmmeter to red wires. Should read 10 megaohms in operation and less than 10 ohms in alarm. • Normally Closed - Attach ohmmeter to orange wires. Should read less than 10 ohms in operation and infinity in alarm. • Normally Open - Attach ohmmeter to orange wires; insulate violet wires from each other. Should read 10 ohms or less in alarm. A-10754 • Normally Closed - Attach ohmmeter to orange wires. Short violet wires together. Should read infinity in alarm. Check system pressure to verify oil flows to divider valves. If needed, install pressure gauge to monitor lubrication system operation. Check gauge to verify pump builds sufficient pressure to inject oil into cylinder. Do not remove tubing from check valve and pump oil to atmosphere to check oil flow into cylinder. Replace pump. 3/11 PAGE 2-11
- 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
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Section 2 - Instrumentation For Models: JGH:E:K:T<br />
• To set alarm time, press and release the spring-loaded programming magnet assembly until<br />
the desired alarm time in seconds displays on the LCD. Set alarm time from a minimum of<br />
20 seconds to a maximum of 255 seconds.<br />
• Remove programming magnet. DNFT displays total divider valve cycles if left in this mode<br />
and alarm time is now set.<br />
b. Mode 2 - LCD displays cycle time of divider valve in seconds.<br />
• Remove programming magnet with Mode 2 dispays. LCD counts each divider valve cycle in<br />
seconds, counting up from zero until the divider valve completes one full cycle. When divider<br />
valve completes one full cycle, the LCD resets to zero and repeats the count until another<br />
cycle is completed. The LED blinks in all modes to indicate each divider valve cycle. This<br />
blink enables the operator to set pump rate.<br />
c. Mode 3 - LCD displays total pints used; program divider valve total.<br />
• To set divider valve total, add the total of the divider valve assembly on which the DNFT will<br />
be installed. Example: 24 + 24 + 24 = 72.<br />
• Press and release the spring-loaded programming magnet until the divider valve total displays<br />
on the LCD. Maximum value: 120.<br />
• Remove programming magnet. The DNFT displays total pints on the LCD if left in this mode.<br />
d. Mode 4 - LCD displays pump rate in pints per day.<br />
• Remove programming magnet with Mode 4 dispays. LCD displays pump rate in pints per day.<br />
This mode requires a minimum 4 second cycle time.<br />
The DNFT stores all programmed information until the operator inserts the programming magnet into<br />
the recessed opening, selects Mode 1 or Mode 3, and presses the spring loaded magnet assembly.<br />
This action resets the unit to zero and allows entry of a new value.<br />
DNFT Battery Replacement<br />
The DNFT operates on a field-replaceable lithium<br />
battery that should last six to ten years. If battery<br />
voltage drops below normal operating levels, the<br />
DNFT shuts down and the compressor cannot be<br />
restarted until the battery is replaced.<br />
CAUTION: Do not open a DNFT in an explosive<br />
gas atmosphere.<br />
1 9<br />
8<br />
PAGE 2-10 3/11<br />
2<br />
3<br />
4<br />
6<br />
5 7<br />
1.<br />
2.<br />
3.<br />
4.<br />
Shut down compressor.<br />
Disconnect DNFT wiring<br />
Use 1/8 inch Allen wrench to loosen Allen set<br />
screws and remove control housing to a safe<br />
atmosphere.<br />
Use 3/8 inch ratchet wrench to remove pipe<br />
plug.<br />
1.<br />
2.<br />
3.<br />
4.<br />
Magnet 5. Polarized 8. #22 AWG<br />
Housing Connector<br />
18” (0.46 m)<br />
Magnet 6. Field<br />
Leads (7)<br />
O-Ring Replaceable 9. Allen Set<br />
Battery<br />
Screws (2)<br />
Control<br />
Housing 7. 1/2” Pipe Plug<br />
FIGURE 2-11 Typical Digital No-Flow<br />
Timer Switch (DNFT)<br />
5. Remove battery and disconnect from polarized connector.<br />
6. Connect new battery to polarized connector.<br />
7. Insert new battery and reinstall pipe plug.<br />
8. Place DNFT control housing on the magnet housing in its original position and tighten set screws.<br />
Reattach wiring and conduit.<br />
9. To verify DNFT operation, pre-lube the system and check for LED blink.
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