Flofab RLU series, RWU series, RSE series Operation, Maintenance & Installation Manual

SINCE 1981

Hot Water

Storage

Tanks

Series RLU/RWU/RSE

Operation, Maintenance

& Installation Manual

www.flofab.com

001-iom-2017-hwst

I.O.M - HOT WATER STORAGE TANKS - RLU/RWU/RSE

SINCE 1981

General Notes and Warnings

NOTES:
This manual is intended to detail installation and maintenance procedures for FLOFAB® Tanks. Since

each unit is built to meet customer specications, instructions may seem general in nature at times.

If questions are not answered by this manual, or if specic installation or maintenance procedures
are not clearly understood, contact FLOFAB for clarication before proceeding.

All installation and maintenance procedures should be performed only by experienced, trained, and
certied personnel. Personnel should be trained in correct piping procedures and methods, and
should be experienced in working with steam, boiler water, high temperature water, and high pres­sure systems.

FLOFAB has no control over the use of FLOFAB® Tanks or the type of system into which they may be
integrated. Depending on the system in which the tank has been installed, the possibility for bodily
injury or death may be present if the system is not properly prepared for maintenance procedures.
If any of the following elements apply to the system, follow all accepted / recommended practices,
and use common sense before attempting any maintenance procedures.

1. Steam

2. High Temperature or Boiler Water

3. Connected Energy Source

4. Connected Power Source

5. Pressurized System

6. Any Combination of the Above

FLOFAB® Tanks are designed for indoor use only, unless otherwise required by design specications.

Each unit requires at least two feet (2’) of clearance around and above the unit. It should be located

on a level surface (no more than one-half degree [½º] of slope), capable of supporting the total
weight of the unit when lled to capacity.

The tank should be mounted to the oor following applicable architectural and local code require­ments for the specic installation site.

In areas prone to seismic activity, it is recommended that the tank be mounted to the oor according
to recommended procedures and codes for the site / location, to make it less susceptible to seismic
damage.

Inspection procedures and periodic maintenance, as well as suggested intervals, are detailed on
pages 5 to 8 of this manual.

FLOFAB® Tanks are available in a wide range of operating pressures. For the specic design range for
your tank, refer to the design specications. The maximum rated working pressure is also stamped

on the tank for quick reference.

If the tank is damaged during installation or maintenance, contact FLOFAB for instructions.

1

I.O.M - HOT WATER STORAGE TANKS - RLU/RWU/RSE

SINCE 1981

General Notes and Warnings

For all piping connections, the use and / or type of joint compound or sealer should be determined
by referring to local codes, accepted standards, and / or the requirements of the installing contractor.

An A.S.M.E. approved pressure, or pressure / temperature relief valve, rated higher than the
maximum heat in Btu / hr must be installed. The valve should have a pressure setting no higher

than the maximum design pressure of the tank.

Warnings

As with any tank designed for use as a pressure vessel, the potential exists for severe personal injury
if proper installation and maintenance procedures are not followed. Listed below are specic warnings
pertaining to FLOFAB® Tanks. In addition, throughout this manual, warnings are restated when
procedures are described pertaining to areas of potential danger. All warnings should be carefully
read and understood. All precautions contained in the warnings should be carefully followed to re-

duce the chance of injury.

Note: Throughout this manual, warnings will be denoted by the symbol ▼.

In addition, most components which will be connected to the tank by the purchaser, will be accompa­nied by their own documentation. This documentation may contain warnings specic to the compo­nent. It is strongly recommended that each document be reviewed before attempting any installation

or maintenance procedures.

▼ Areas of potential danger:

1. all inlet and outlet lines, joints, and valves;

2. all pressure regulators;

3. all power connections and cables;

4. all energy lines, joints, and valves; and

5. all pneumatic (instrument air) lines and joints.

▼ Before attempting any installation or maintenance procedure:

1. assure that any energy source connected to the system has been turned off;

2. if the unit has been in operation, allow the water in the tank, as well as all components and sur
faces, to cool before starting the procedure;

3. assure that all power has been shut off / disconnected before attempting any procedures; and

4. assure that all inlet and outlet lines have been turned off at the manual shutoff valves.

▼ If the tank will be used for holding hot water, it can present a very dangerous situation due to the
fact it is under pressure and at very high temperatures. To avoid possible injury or death, use
common sense and follow all accepted / recommended procedures when performing installation and

maintenance procedures.

▼ If both electricity and water / steam are to be used in the system, the combination can pose a very
dangerous situation. Assure that all power has been shut off and disconnected before attempting any

installation or maintenance procedures.

2