Deltech Fitness LS2580, LS60 Dryer Models LS1250 and LS1500, Dryer Models LS2070 and LS2580

3 - 8 Operation

chamber is pressurized, the Purge Pressure Indica-

tor will read “system pressure”.)

12. The Normal Start-Up or Restart procedure for mod-

els LS60 through LS1000 is now complete. Proceed

to the Normal Operational Checks section of this

manual for final operational checks and adjustments.

Dryer Models LS1250 and LS1500

1. Close the Pilot Gas Filter's Bleed Valve.

2. Close any manual vent or drain valves installed in

prefilter and afterfilter assemblies.

3. Close the System Outlet Isolation Valve (customer

supplied).

4. Open the Pilot Gas Supply Valve, located upstream

of the Pilot Gas Filter.

5. Supply pressure to system by slowly opening the

System Inlet Isolation Valve (customer supplied).

The Right Chamber Inlet Switching Valve and Left

Chamber Purge Exhaust Switching Valve will close.

The Left Chamber will immediately begin pressurizing

to system pressure as indicated by the chamber

pressure gauge.

6. Fully open the Moisture Indicator Supply Valve.

7. The Moisture Indicator's (if dryer so-equipped) bleed

valve is installed directly into the back of the

indicator's body. Adjust the Moisture Indicator’s

Bleed Valve until a very slight, continuous gas bleed

is felt exhausting from the bleed valve’s exhaust port.

Ensure that the granular indicator crystals remain

motionless after final adjustment.

8. PARTIALLY open the System Outlet Isolation Valve

(customer supplied), while monitoring the outlet pres-

sure gauge. Do not permit the Dryer's Outlet Pres-

sure gauge to exceed a 5% drop in pressure while

pressurizing downstream piping.

9. Close the System Bypass Valve (if gas system has

been so-equipped).

10. Energize the dryer's electrical power supply.

11. Refer to Appendix A (Appendix C for -100°F pdp) of

this manual and calculate your dryer model's purge

pressure setting as instructed.

12. Locate the Purge Adjusting Valve. Slowly rotate

dryer’s Purge Adjusting Valve until the Purge Pres-

sure Indicator indicates the calculated purge pressure

setting. (See following Note).

Note: The purge pressure can only be read and ad-

justed when an off-line desiccant chamber has de-

pressurized for regeneration. (When the off-line cham-

ber is pressurized, the Purge Pressure Indicator will

read “system pressure”.)

13. The Normal Start-Up or Restart procedure for mod-

els LS1250 through LS1500 is now complete. Pro-

ceed to the Normal Operational Checks section of

this manual for final operational checks and adjust-

ments.

Dryer Models LS2070 and LS2580

1. Close the Pilot Gas Filter's Bleed Valve.

2. Close any manual vent or drain valves installed in

prefilter and afterfilter assemblies.

3. Close the System Outlet Isolation Valve (customer

supplied).

4. Close the Pilot Gas Supply Valve and pressurize the

pilot gas system with compressed gas to line pres-

sure. Use the Ball Valve located in the pilot gas line

prior to the Pilot Gas Filter and after the Pilot Gas

Supply Valve. Both desiccant chamber Inlet Valves

will open and both Purge Exhaust Valves will close.