lp-770 Rev. 000 Rel. 000 Date 6.21.21
6
Failure to keep the water heater area clear and free of combustible
materials, liquids, and vapors can result in substantial property
damage, severe personal injury, or death.
Do not connect the water heater to any heating systems or
components that have been previously used for non-potable
applications.
Do not introduce toxic chemicals, such as antifreeze or water heater
treatments, into the water heater or any piping meant for potable
water purposes.
Always take future maintenance into consideration when locating
the appliance. If the appliance is located in an installation location
with limited clearances, it may be necessary to remove the appliance
from the space to perform maintenance. Failure to consider
maintenance when determining installation location could result in
property damage.
Ensure that all piping and components connected to the water
heater are suitable for potable water applications.
Do not use this water heater for space heating applications.
Circulators suitable for DHW applications must be used.
All water heaters eventually leak. Locate the water heater
where any leakage from the relief valve, related piping, tank, or
connections will not result in damage to surrounding areas or
lower floors of the building. Any water heater should be installed
in such a manner that if it should leak the resulting flow of
water will not cause damage to the area in which it is installed.
National Plumbing codes require a drain pan for any water heater
installation. This drain pan should be sized with a maximum depth
of 2”, and a minimum diameter 2” greater than the diameter of
the water heater. The drain pan should empty into an open drain
line. This drain line should be 3/4” ID minimum, piped to an open
drain. Leakage damages ARE NOT covered by warranty. Failure to
install a drain pan is the sole responsibility of the owner and/or
installer. Reference UPC 2000 (Uniform Plumbing Code) Section
510 - Protection from Damage or IPC 200 (International Plumbing
code) Section 504 - Safety Devices. Leakage damages ARE NOT
covered by warranty.
In addition, water leak detection devices and automatic water
shutoff valves are readily available at plumbing supply houses. IT
IS HIGHLY RECOMMENDED BY THE MANUFACTURER TO INSTALL
WATER LEAK DETECTION DEVICES AND AUTOMATIC SHUTOFF
VALVES IN ANY WATER HEATER INSTALLATION WHERE A LEAKAGE
OF WATER COULD RESULT IN PROPERTY DAMAGES.
This water heater is certified for indoor use only. DO NOT INSTALL
OUTDOORS. Outdoor installations ARE NOT covered by warranty.
Choose a location for the water heater as centralized to the piping
system as possible. Also, locate the water heater and domestic water
piping where it will not be exposed to freezing temperatures. All
piping should be insulated. Additionally, place the water heater so that
the drain, controls, and inlets/outlets are easily accessible.
NOTE:
To save on heating costs and improve energy efficiency keep
the distance between the boiler and water heater to a minimum
to reduce heat loss from excess piping and keep friction loss at a
minimum. Ensure all piping between the boiler and water heater is
properly insulated to minimize heat loss.
The water heater may be located some distance from the boiler
provided the circulator meets flow requirements through the coil. The
greater the distance from the water heater to the boiler the longer the
response will be to a call for hot water.
This water heater must be installed vertical on a level surface.
NOTE:
In the State of California, the water heater must be braced,
anchored, or strapped to avoid moving during an earthquake. Contact
local utilities for code requirements in your area. Visit http://www.dsa.
dgs.ca.gov or call 1-916-445-8100 and request instructions.
However, applicable codes shall govern installation. For residential
water heaters of a capacity greater than 52 gallons, consult the local
building jurisdiction for acceptable bracing procedures.
NOTE:
If you do not provide the minimum clearances shown in
Figure 1, it might not be possible to service the water heater without
removing it from the space.
NOTE:
A combustible door or removable panel is acceptable front
clearance.
Ensure the location can support the entire filled weight of the water
heater. Failure to properly support the water heater could result in
property damage, severe personal injury, or death.
This water heater must be installed upright in the vertical position as
described in this manual. DO NOT attempt to install this water heater
in any other orientation. Doing so will result in improper water heater
operation and property damage, and could result in serious personal
injury or death.
Figure 1 - Drain Pan Installation and Recommended Service Clearances
DIAMETER OF WATER HEATER
PLUS 2" MINIMUM
TO OPEN DRAIN.
LINE SHOULD BE AT LEAST
3/4" ID AND PITCHED FOR
PROPER DRAINAGE.
MAXIMUM 2"
LP-770-B
12/14/20
SERVICE CLEARANCE
ZERO
CLEARANCE
12/14/20
LP-770-A
24” MIN.
CLEARANCE
6” MIN.
CLEARANCE
6” MIN.
CLEARANCE
B. Clearances for Service Access
See Figure 1 for recommended service clearances.
NOTE:
For closet installations, a combustible door or removable
panel is acceptable front clearance. A 3” minimum clearance must be
provided from the appliance front cover to the removable panel or
combustible door.
NOTE:
If you do not provide the minimum clearances shown in Figure
1 it might not be possible to service the heater without removing it
from the space.
MINIMUM CLEARANCES FROM COMBUSTIBLE MATERIALS
•
Hot water pipes - at least 1” from combustible materials
•
Exhaust vent pipe - at least 1” from combustible materials