Watts OneFlow OF1465-50TM Manuel D'installation, D'utilisation Et D'entretien page 4

Installation
Tighten the Tank Head
NOTICE
Check the head on top of the tank. It is common for it to loosen during
shipment. Tighten the head with a strap wrench as needed.
NOTICE
*It is very important to use flexible connections on the inlet and
outlet plumbing in the horizontal orientation as shown in the images
on this page. The tanks expand and contract with water pressure
fluctuations. Flexible connectors will prevent plumbing and tank
leaks. The EDP code for the suggested Watts 2" Flexible Connec-
tors is C515285 (Two are included and required for installation).
Anytime OneFlow systems are installed above the ground floor of
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a building it is recommended that a vacuum relief valve also be
installed to protect against tank collapse in the event the plumb-
ing system is drained. If a vacuum relief valve is not used then the
system should be placed in bypass anytime the plumbing system
is drained. The EDP code for the suggested vacuum relief valve is
0556031 (not included). The vacuum relief valve should be installed
on the outlet of the system.
NOTICE
• We recommend the installation of a dual-union ball-valve on the
inlet and outlet to isolate the tank for servicing.
• A full bypass should be installed so that the full service flow can
be routed around the system as needed for servicing.
Install Piping
Connect the inlet and outlet plumbing according to your prefer-
ences and any applicable local codes. Include sample/drain ports
with hose-bibb connections on the inlet and outlet piping to facilitate
startup and service.
! WARNING
Support the Piping
2 inch Flex Connectors must be installed horizontally not vertically
in the water pipe line. The full weight of the piping and valves must
be supported by uni-strut, pipe hangers or other means. The tank
connections cannot support the weight of the piping. The image
below for a multi-tank system installation shows properly sup-
ported piping.
Typical Installation for single and
multi-bank systems
Vaccum Relief Valve
Inlet
Vacuum Relief
Valve
2" Flex
Connectors*
Inlet
Start-Up
Connect a hose to the hose bibb on the outlet of the tank. Run the
hose to a drain and open the hose bibb.
Slowly/partially open the supply water ball valve. Allow the tank to
slowly fill with water. When a steady stream of water appears at the
drain, close the supply valve and hose bibb.
Open the inlet and outlet valves on the system. Transfer the bypass
valves from Bypass to the Service position. Open a nearby faucet
downstream from the OneFlow
Check for leaks. Repair as needed.
NOTICE
Fill in install date and rebed due date on product label located on
front of each tank as reminder to replace OneFlow media every 3
years.
The system is now ready for service.
4
Outlet
2" Flex
Connectors*
Pipe Hangers
Outlet
system to relieve any air.
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