Technical data

AquaFlo Installation, Maintenance and User Instructions Page 15 of 24 V 2.01 - October / 2012
INSTALLATION SITE
Zip AquaFlo can be positioned more or less anywhere in the building but it should be
remembered that for every 1 meter that an outlet is above the AquaFlo, the pressure will be
reduced by 0.01 MPa (0.1 bar). If siting outside the heated envelope of the dwelling such as
in a garage or outbuilding then frost protection should be provided and exposed pipe work
should be insulated.
Zip AquaFlo must be supported on a at base (intended for oor standing) capable of
supporting the weight of the cylinder when full. The minimum recommended cupboard size is
650mm square.
It’s important that consideration is given to access for maintenance of the valves.
The immersion heaters are 375mm long and access space should be provided for possible
future replacement.
INSTALLING THE APPLIANCE
Cylinder connections
All plumbing connections should be made to Zip AquaFlo and its safety devices using the
15mm or 22mm compression ttings, nuts and olives supplied.
Cylinder relief valve connections
Safety relief valve connections should not be used for any other purpose and no valve should be
tted between the expansion relief valve and the storage cylinder.
Cold mains pipework
Run the cold main through the building to the place where the AquaFlo is to be installed. Take
care not to run the cold pipe near hot water or heating pipe work so that the heat pick up is
minimized. Identify the cold water supply pipe and t an isolating valve (not supplied).
A 22mm BS1010 stopcock can typically be used but a 22mm quarter turn full bore valve would
be better as it does not restrict the ow as much. Do not use “screwdriver slot” or similar
valves.
Make the connection to the cold feed of the cylinder and incorporate a drain valve (not supplied).
Position the inlet control just above the Temperature & Pressure Relief Valve (TPRV) mounted
on the side of the cylinder. This ensures that the cylinder does not have to be drained down in
order to service the inlet control set. Ensure that the arrow points in the direction of the water
ow. Select a suitable position for the expansion vessel. Mount it to the wall using the bracket
provided.
A ¾” BSP female x 22mm compression connection is provided to connect the expansion vessel
to the 22mm pipe.
Balanced cold connection
If there are to be showers, bidets or monobloc taps in the installation then a balanced cold supply