Replacement Media
Replace media when notified by U-M311 Elapsed Time Monitor.
Model
OF744RM
Media should be replaced every 3 years
OF844RM
Media should be replaced every 3 years
OF948RM
Media should be replaced every 3 years
OF1054RM
Media should be replaced every 3 years
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 by hand until tighten.
NOTICE
Anytime OneFlow systems are installed above the ground floor
of a building it is recommended that a vacuum relief valve
also be installed to protect against tank collapse in the event the
plumbing 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 and outlet to isolate the
tank for servicing or install optional bypass valve that is
sold separately.
• A full bypass should be installed so that the full service flow
can be routed around the system as needed for servicing.
• The full weight of the plumbing system must be supported
by pipe hangers or other means.
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.
Replacement Frequency
System Overview
6
Monitor Assy
(EDP#7100992)
1" NPT Meter
CK-V3007
1" PVC Male NPT Elbow Assy
(EDP#0002169)