John Wood Commercial Electric Water Heater - Manual (Page 23)

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Installation Instructions
General
The installation of the floor sealant is a requirement for
NSF construction compliance.
Tools And Materials Required:
1. Floor sealant (Dow Corning RTV Sealant #732).
2. Standard caulk gun.
Installation Procedure
Before proceeding with the sealing of this heater to comply
with NSF requirements, ensure this water heater has been
installed in accordance with local and provincial or state
codes or, in the absence of local and provincial or state
codes, with the latest edition of “Canadian Electrical
Code” (in Canada) or NFPA-70 “National Electrical
Code” (in USA). Refer to the installation instructions pro-
vided with this water heater.
1. Thoroughly read and understand the floor sealant
instructions.
2. Thoroughly read and understand the installation instruc-
tion manual supplied with the heater before beginning
the installation.
3. Ensure the water heater has been installed in accor-
dance with the installation instructions for this water
heater and/or with local codes and ordinances.
4. Seal the heater base to the drain pan and the drain pan
to the floor with the sealant listed above. Be certain that
there are no gaps or openings in the seal (See Figure
22).
5. If a drain pan is not installed seal the unit base to the
floor with the sealant listed above. Be certain that there
are no gaps or openings in the seal (See Figure 23).
NOTE: The NSF certification requires the heater to be
designed, constructed and installed to prevent the harbor-
age of vermin and the accumulation of dirt and debris.
IMPROPER INSTALLATION, ADJUSTMENT OR
ALTERATION OF THESE COMPONENTS CAN CAUSE
NON-COMPLIANCE TO NSF SPECIFICATIONS. ONLY
A QUALIFIED INSTALLER, SERVICE AGENT, OR CER-
TIFIED FACTORY REPRESENTATIVE SHALL INSTALL
THE NSF CONSTRUCTION COMPONENTS.
WARNING
THE MANUFACTURER OF THIS WATER HEATER
WILL NOT ASSUME ANY LIABILITY FOR ANY DAM-
AGE RESULTING FROM FAILURE TO COMPLY WITH
THESE INSTRUCTIONS. READ THESE INSTRUC-
TIONS THOROUGHLY BEFORE STARTING.
WARNING
FIGURE 22: NSF Caulking (Drain Pan)
FIGURE 23: NSF Caulking (Floor)
IX) FLOOR SEALING