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VAPOR ASSIST INSTALLATION INSTRUCTIONS
For Series 8753E, 8853E, 9153A, and 9853A Single and Twin Models
This instruction sheet cov ers the installation of the V apor Assist System for the models nam ed above. Assembly
and installation of a Vapor Assist System requires a kit containing the following:
Qty. P/N Description
1 017270 ¾” to 1” Bushing*
1 030424 ¾” Hardwall UL 1’ 9” hose
1 028930 ¾” Rubber Grommet
1 045802 Plate, Vapor Assist
1 047302 Pulley, 5/8” Bore, 2.6 Dia.
1 012163 Belt, A35
1 035282 Warnings and Safeguards
1 032169 Template
1 046631 Decal, Nozzle/Hose/Clamp
1 032170 Instruction Sheet
*Required for units with 1” discharge only.
Qty. P/N Description
1 N/A External Vapor Pump
1 N/A Pump Cover
1 N/A Bellowless Nozzle
1 N/A Breakaway
1 N/A Hose Retractor Clamp
1 N/A ¾” Elbow, 90°
2 Optional Thermoid Inverted Coaxial
Hose***
1 N/A Metal Mounting Plate **
2 N/A Locking Nuts
2 N/A Set Screws
**Discard item and use P/N 045802 plate noted at left.
***Must be a UL-Listed Inverted Coaxial Hose assembly.
1. Read all instructions before b eginnin g. Instal lation shou ld be don e accord ing to th e instruct ions on this sheet.
Also, read and follow all precautions regarding remote dispensers and pumps on the Warnings and
Safeguards sheet, 03 5282, included in the kit. SAFETY NOTE: Before drilling or performing any other
operation which may generate a spark, we recommend removing the dispenser and other pertinent
equipment a safe distance from the island.
2. Turn off power to the dispenser at the breaker and activate emergency shutoff valve.
3. On models 8853E/ ETW , 9153A/ATW , and 9853A/ATW, replace exist ing motor pulle y and V-belt wit h sup plied
pulley and V-belt. Model 8853ETW1 does not require this conversion.
Assemble Product Jumper Hose
4. Use a UL-Classified gas- an d oil-resistant pipe com pound on all threads
when assembling these components. NOTE: All further references to
Bushing
Swivel
Jumper Hose
pipe compound in these instructions imply UL-classified pipe compound.
5. Assemble ¾”-1” bushing (017270) to ¾” jumper hose/swivel assembly
(030424).
6. Set aside.
Assembling Pumping Unit
7. Using pipe thread compound, attach ¾ x 90° elbow into product
connector on bottom of OPW pumping unit (Blackmer Model
VRFO, ID No. 2).
Pumping Unit
8. Thr ead set screws into the pump. Use a 1/8” Allen wrench to fully
tighten. Remove the protective vapor connection plug from the
vapor connection on the OPW pumping unit. Be careful not to
3/4" Elbow
allow any foreign matte r, such as dirt or metal shav ings to get
into the pump fitting. This could cause pump seizure and
malfunction.
9. G asboy recomm ends that you install a UL- Listed vapor line shear v alve, such as OPW 60VSP as part of the
new vapor line plumbing. Refer to instructions supplied with shear valve for installation details.
032170 Rev. 8279 Page 1
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Mounting External Vapor Pump
10. Remove plastic plug (vapor connection opening) from side panel.
11. Refer to template (032169) f or instr uct ions on m arking an d dr illin g
two 5/16” diameter holes through both side panel and side frame.
Step 11
12. Replace plastic plug removed in Step 10 with rubber grommet
(028930).
Mount the Pump to the Dispenser
13. Position the OPW pump up to the dis penser. A lign the va por connecti on
of the OPW pumping un it with the side panel vapor open ing. Insert set
screws through mounting holes. From inside the dispenser, place
Gasboy metal plate (045802) over the screws and tighten locking nuts
onto screws.
Steps 10
& 12
Install Jumper Hose
14. Using pipe thread compound , thread product jumper hos e onto
90° elbow. Tighten with crescent wrench.
15. Using pipe thread compound, assemble jumper
hose/bushing/swivel assembly to existing dispenser discharge
and tighten.
Step 13
Step 15
Step 14
032170 Rev. 8279 Page 2