6.
Site Pr
epar
ation
Site Preparation
Refer to the Site Audit document if supplied.
To ensure maximum operating life, care should be taken when siting the dispenser.
Considerations should include:
▪
The unit is not designed to be constantly exposed to the elements. A canopy or shelter
should be installed to protect it.
▪
The card reader and PIN pad should face away from the prevailing wind especially in
dusty or wet areas.
▪
In areas experiencing extremes of weather (heat, cold, wind, rain, salt spray etc.)
consideration should be given to installing additional shelter.
▪
On heavy vehicle sites, mounting the unit on a raised pad and/or installing bollards to
help protect from damage.
▪
The base needs to be attached to a smooth, level surface of sufficient strength to
securely hold the retaining bolts or fasteners.
Electrical Preparation
Power and communication cables must meet or exceed local regulation requirements.
If no local regulations exist, we recommend as a minimum:
•
Power: 3 core 2.5 mm
2
Steel Wire Armour (SWA) cable
•
Comms: 2 core 1.5 mm
2
Steel Wire Armour (SWA) cable
There should be a minimum of a 2 metre tail for all wiring.
NOTE:
The length of the communications cable must not exceed 100 metres.
Pipework Preparation
Pipework should be laid in accordance with local regulations.
To obtain maximum flow on a self contained pump, observe the following guidelines:
▪
Total length of horizontal piping between tank and pump should be no longer than 18
metres.
▪
Piping specifications: For 40 L
/min pumps, use 1½” galvanized or approved non
-
metallic pipe. For 80 L
/min pumps use 2” galvanized or approved non
-metallic pipe.
▪
Only one pumping unit is permitted for each underground pipe. Do not use tee joints to
connect two pumps into one pipe.
▪
Pipe must slope up from the tank to the pump (approximately 15 mm per metre). Pipe
should be straight and supported along its length.
▪
All horizontal piping must be buried at least 450mm below ground level.
▪
The area under the pumping unit(s) must be filled with sand or dirt as far up the suction
line as possible. Use water to pack the sand or dirt when put in place.
▪
Avoid asphalt drive surfaces covering the piping. Asphalt increases heat absorption
causing vapour lock.
