Twin-Line Pre-mix Doorway Foam Unit
Service Manual
Model: DS-WL-TL
Important Information
READ ALL INSTRUCTIONS BEFORE USING OR SERVICING THIS UNIT. KEEP THIS MANUAL IN A LOCATION THAT IS READILY AVAILABLE TO USERS AND SERVICE TECHNICIANS.
Language: English (Original Instructions)
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Safety
⚠ WARNING
PEOPLE OR OBJECTS CAN BE HURT OR DAMAGED IF THIS UNIT IS NOT USED CORRECTLY!
- Failure to read all instructions before operating the unit may result in personal injury or death from the improper use or the chemical solution. Anyone handling, operating or using the unit must read, and understand, the instructions in the manual. The buyer assumes all responsibility for safety and proper use in accordance with the instructions.
- Using, or servicing, the unit without proper protective clothing, gloves, and eye wear may result in serious injury such as burns, rashes, eye, throat or lung damage and death. Always wear protective clothing, gloves, and eye wear when using, or servicing, the unit. Protect eyes, skin, and lungs against drifting spray. [Gloves] [Safety Goggles] [Respirator Mask]
- Chemical solutions may pose a health risk and death if they contact the skin or eyes, are inhaled or swallowed. Always read, and follow, all chemical safety precautions and handling instructions provided by the chemical manufacturer and the Safety Data Sheet (SDS) associated with the chemical solution being used before using the unit.
- Pressure within the equipment may cause an unexpected release of the chemical solution and cause serious injury such as burns, rashes, eye damage, throat or lung damage and death. Always depressurize and clean the unit after each use. Never leave the unit unattended while pressurized.
- Using the unit with fluid temperatures above 100°F (37.8°C) may result in scalding, burns, serious injury or death. DO NOT use a solution with a temperature above 100°F (37.8°C).
- Operating the unit when damaged or leaking may result in exposure to chemical solutions, serious injury or death. Never use the unit if it is damaged or leaking.
- Using incoming air pressure exceeding 100 psi (6.9 bar) may result in pressure buildup, explosion, serious injury or death. DO NOT exceed 100 psi (6.9 bar) incoming air pressure when operating unit.
- Use of hydrocarbons and flammable products may result in explosions, fire and serious injury or death. Never use hydrocarbons or flammable products with the unit.
- Performing any maintenance with the unit turned ON, plugged into an electrical power source or connected to the air supply may cause serious injury or death. Always ensure that the unit has been turned OFF, unplugged from the electrical power source, and disconnected from the air supply before conducting any maintenance.
- Mixing an alkaline with an acid may result in a chemical reaction. Overheating of the mixture may cause it to splatter caustic compounds or release hazardous fumes, gas and vapors. Always flush the unit with fresh water thoroughly when switching from an alkaline to an acid or an acid to an alkaline.
Notice
- Servicing, or modification, of this unit with parts not listed in this manual may cause the unit to operate improperly. Do not use unauthorized parts when servicing the unit.
- Use of an air lubricator before the unit may result in diminished performance and damage to the unit. Do not use an air lubricator before the unit.
- Moisture in the air lines will damage the pump and diminish the pumps life. The air must be filtered, clean, dry and free of moisture. If needed, install an air dryer before the unit.
PROTECT THE ENVIRONMENT
Please dispose of packaging materials, old machine components, and hazardous fluids in an environmentally safe way according to local waste disposal regulations. [Recycle Symbol Placeholder]
Service Guide
⚠ WARNING
Performing any maintenance with the unit turned ON, plugged into an electrical power source and connected to the air supply may cause serious injury or death. Always ensure that the unit has been turned OFF, unplugged from the electrical power source, and disconnected from the air supply before conducting any maintenance.
Servicing, or modification, of this unit with parts not listed in this manual may cause the unit to operate improperly. Do not use unauthorized parts when servicing the unit.
Maintaining Your Unit
To keep your unit operating properly, periodically perform the following maintenance procedures:
- Inspect the pump for wear and leaks.
- Inspect all hoses for leaks or excessive wear. Make sure all hose clamps are in good condition and properly secured.
- Replace the filter located within the air regulator as needed. Clean by unthreading the air regulator bowl from the air regulator.
- Check the suction line and strainer for debris and clean as needed.
- Drain your air compressor tank on a regular basis to help extend pump life. An air source with a high moisture content will accelerate pump wear.
Note: If your air source has a high moisture content, install a water separator (sold separately) before the unit.
Servicing Your Unit
Most repairs on the unit can be performed with the following tools:
- Crescent wrench (2x)
- 7/16 in. (11 mm) open-ended wrench
- Flat head screwdriver
- Thread seal tape
- #2 Phillips head screwdriver
- #3 Phillips head screwdriver
- Hose cutters
- Knife
Troubleshooting Your Unit
If your unit is not operating properly, try using these troubleshooting tips:
Issue | Solution |
---|---|
Air Regulator Bowl or Air Filter has debris such as water, oil, or rust particles | Clean by unthreading the air regulator bowl from the air regulator. |
Pump is cycling improperly due to lack of air pressure |
|
The solution backs up into the air regulator bowl. | The check valve needs to be replaced. |
Foam comes out wet, no matter where the needle valve is positioned |
|
The unit operates at a reduced pressure |
|
Control Box Assembly
DS-WL-TL-CB: Control Box Assembly
Control box assembly for pre-mix twin line doorway foam unit with 24VDC timer - Santoprene pump.
Additional control box pump options:
- DS-WLK-TL-CB: Kalrez pump
- DS-WLV-TL-CB: Viton pump
Inside view:
Item number | Description |
---|---|
1 | Wall mount screw - #14 x 1 1/4 in. - Stainless steel - hex head slotted |
2 | Poly box foot - gray polypropylene |
3 | Wall mount screw anchor - #14 x 1 1/4 in. - plastic - 5/16 in. drill size |
4 | Screw - #10 x 3/4 in. - stainless steel flat head Phillips - hi-lo thread |
5 | Poly box assembly - 16 in. x 13 in. x 8 in. - gray polypropylene - includes mounting hardware |
6 | A P56: Pump with Santoprene seals - includes hose barbs, air fitting, and exhaust barb |
B P56K: Pump with Kalrez seals | |
C P56V: Pump with Viton seals | |
7 | Timer assembly - repeat cycle - 24VDC - 5A resettable circuit protector - includes 120VAC NA power cord |
8 | Toggle switch - body - single pole single throw - nickel-plated brass - 1/4 in. spade terminals - 1/2 in. mounting hole - 15/32-32 keyed threaded bushing |
9 | Toggle switch - mounting boot - black silicone rubber - 15/32-32 integrated nut |
10 | 3/8 in. id blue hose - hybrid TPE - available per ft. |
11 | Check valve - 3/8 in. barbs- PVC body- Hastelloy spring - Teflon ball - white |
12 | 1/4 in. id blue hose - hybrid TPE - available per ft. |
13 | Screw band clamp - stainless steel - for 3/8 in. hose |
14 | Needle valve - 1/4 in. NPT - includes black knob |
15 | Regulator - air - 2x 1/4 in. FPT and 2x 1/8 in. FPT ports with bowl and filter - no gauge |
16 | Air gauge - 1/8 in NPT - 0-100 PSI markings - dry model |
17 | Quick fit - 1/2 MPT x 1/2 od tube-polypropylene |
18 | Hose barb - polypropylene - 1/2 in. FPT x 3/8 in. barb |
Diagram Description: An internal view of the control box shows various components connected by hoses and wires. Numbered labels point to specific parts like screws, feet, anchors, pumps, timer, toggle switches, hoses, check valves, regulators, and gauges.
Control Box Sub-assemblies
RGA-R25-WF-ACV-24VDC-RH: Air Regulator Assembly
Air regulator assembly for wall mounted foam units - includes air gauge, needle valve, 24VDC valve, air inlet valve, screw band clamp, and hose barb - for use on right hand side of box.
Item number | Description |
---|---|
1 | 3/8 in. id blue hose - hybrid TPE - available per ft. |
2 | Screw band clamp - stainless steel - for 3/8 in. hose |
3 | Hose barb - stainless steel - elbow - 1/4 in. MPT x 3/8 in. barb |
4 | 1/4 in. hose barb - brass - for G57/P56 air fitting with o-ring |
5 | Ear clamp - Oetiker - stainless steel for 1/4 in. hose |
6 | 1/4 in. id blue hose - hybrid TPE - available per ft. |
7 | Black knob for needle valve |
8 | Needle valve - 1/4 in. NPT - includes black knob |
9 | Stainless hex nipple 1/4 MPT x 1/4 MPT |
10 | Stainless hose barb 1/8 MPT x 1/4 barb elbow |
11 | Air gauge - 1/8 in. NPT - 100 PSI dry model |
12 | Regulator - air - 2x 1/4 in. FPT and 2x 1/8 in. FPT ports with bowl and filter - no gauge |
13 | Air control valve - MAC - 1/4 in. FPT in. - 2x 1/4 in. FPT out - aluminum body - 24VDC solenoid - normally closed - 18 in. 18 AWG flying leads |
14 | Bulkhead adapter - stainless - 1/4 NPT x 1/4 NPSM |
15 | Serrated flange nut - stainless - 1/2 in. |
16 | Ball valve - brass - nickel plated - air inlet valve - 1/4 in. FPT x 1/4 in. FPT |
17 | Hose barb - stainless steel - 1/4 in. MPT x 3/8 in. barb |
Diagram Description: An external view of a control box sub-assembly, showing an air regulator setup. Numbered labels point to hoses, clamps, barbs, a needle valve, air gauge, regulator, air control valve, bulkhead adapter, flange nut, and ball valve.
SCTNA-WL-HA38BL-8-NB: Suction Hose Assembly
Suction hose assembly - includes 8 ft. of 3/8 in. blue* weighted hose and foot valve - no hose barb.
Item number | Description |
---|---|
1 | 3/8 in. id blue* hose - hybrid TPE - available per ft. |
2 | Suction hose weight - 15/16 in. id x 1 1/2 in. od x 3 1/4 in. long - PVC coated stainless |
3 | Screw band clamp - stainless steel - for 3/8 in. hose |
4 | 1/4 in. MPT x 3/8 in. hose barb - plastic |
5 | 40 mesh suction line strainer 1/4 FNPT |
* Additional colors available, see datasheet for options.
Diagram Description: A diagram of the suction hose assembly. Numbered labels point to the hose, a weighted foot valve assembly with a strainer, and a hose barb.
Nozzle Assembly
NZA-DS-TL-1: Nozzle Assembly
Adjustable doorway foam nozzle assembly for twin line units with one nozzle installation - includes mounting hardware, 50 ft. tubing, and ST80200SS fan tip.
Additional nozzle assembly options*:
- NZA-DS-TL-2: For 2 nozzle install - ST80100SS fan tips (2)
- NZA-DS-TL-3: For 3 nozzle install - ST8060-12SS fan tip
Item number | Description |
---|---|
1 | 1/2 in. od natural tube - polyethylene - available per ft. |
2 | Quick fit - 1/2 MPT x 1/2 od tube - polypropylene |
3 | Stainless tee 1/2 FPT |
4 | Stainless hex nipple 1/2 MPT x 1/2 MPT |
5 | Hex head stainless bushing 1-1/4 MPT x 1/2 FPT |
6 | 1 1/4 in. FNPT and 1 1/4 in. FNPT foam tube - polished stainless - 9 1/2 in. long |
7 | Mixing assembly - doorway system twin line discharge - includes stainless steel mixing media and screen |
8 | 1/2 check valve 7 lb - Hastelloy spring - Viton seals |
9 | Stainless street elbow - 304 stainless steel - 1/2 in. FPT x 1/2 in. MPT |
10 | Wall mount screw anchor - #14 x 1 1/4 in. - plastic - 5/16 in. drill size |
11 | Bracket - stainless steel - for mounting 1 1/4 in. discharge wand |
12 | Wall mount screw - #14 x 1 1/4 in. - stainless steel - hex head slotted |
13 | Nozzle mount body - 1/2 in. MPT - black and gray polypropylene - accepts nozzle mount ball |
14 | Nozzle mount ball - 1/2 in. FPT - black polypropylene - for nozzle mount body |
15 | A ST80200SS: Spray tip - 80 degree - 20.0 GPM - stainless - 1/2 MPT |
B ST80100SS: Spray tip - 80 degree - 10.0 GPM - stainless - 1/2 MPT | |
C ST8060-12SS: Spray tip - 80 degree - 6.0 GPM - stainless - 1/2 MPT |
*Note: Spray tip size varies based on number of nozzles used - refer to Operation Manual for more information.
Diagram Description: An exploded view of the nozzle assembly, showing various fittings, hoses, a mixing assembly, check valve, elbows, mounting hardware, and spray tips. Numbered labels identify each component.