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Part 1 - General Safety Information
This water heater is approved for indoor installations only
and is not intended for use as a pool heater. Clearance to
combustible materials: 0" top, bottom, sides, and back. Heater
must have room for service: 24" front, 6" top, and 6" sides are
minimum recommended service clearances. (A combustible
door or removable panel is acceptable front clearance.) This
water heater has been approved for closet installation and
installation on combustible flooring. Do not install directly
on carpeting. Install the water heater in a location where
temperature and pressure relief valve discharge or a leak will
not result in damage to the surrounding area. If such a location
is not available, install an auxiliary catch pan.
Installer - Read all instructions in this manual before installing.
Perform steps in the given order.
User - This manual is for use only by a qualified heating
installer / service technician. Have this water heater serviced /
inspected annually by a qualified service technician.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE,
SEVERE PERSONAL INJURY, OR DEATH.
NOTE: If the water heater is exposed to the following, do not
operate. Immediately call a qualified service technician.
1. Fire
2. Damage
3. Water
Failure to follow this information could result in property
damage, severe personal injury, or death.
DO NOT USE THIS WATER HEATER IF ANY PART HAS
BEEN SUBMERGED IN WATER. Immediately call a qualified
service technician. The water heater MUST BE replaced if it
has been submerged. Operating a previously submerged
water heater could result in property damage, severe personal
injury, or death.
NOTE: Water heater damage due to flood or submersion is
considered an Act of God, and IS NOT covered under product
warranty.
NOTE: Obey all local codes. Obtain all applicable permits
before installing the water heater.
NOTE: Install all system components and piping in such a
manner that does not reduce the performance of any fire
rated assembly.
High heat sources (sources generating heat 100
greater, such as stove pipes, space heaters, etc.) may damage
plastic components of the water heater as well as plastic
vent pipe materials. Such damages ARE NOT covered by
warranty. It is recommended to keep a minimum clearance of
8" from high heat sources. Observe heat source manufacturer
instructions, as well as local, state, provincial, and national
codes, laws, regulations and ordinances when installing this
water heater and related components near high heat sources.
Do not use this water heater for anything other than its
intended purpose (as described in this manual). Doing so
could result in property damage and WILL VOID product
warranty.
UNCRATING THE WATER HEATER - Any claims for damage
or shortage in shipment must be filed immediately against the
transportation company by the consignee.
A. When Servicing the Water Heating System
Be sure to disconnect electrical power before performing
service. Failure to do so could result in electrical shock, property
damage, serious personal injury, or death.
NOTE: When inquiring about service or troubleshooting,
reference the model and serial numbers from the water heater
rating label.
To avoid severe burns, allow water heater and associated
equipment to cool before servicing.
B. Heater Water
Do not use petroleum-based cleaning or sealing compounds in
a water heating system. Gaskets and seals in the system may be
damaged. This can result in substantial property damage.
Do not use "homemade cures" or "patent medicines". Damage
to the water heater, substantial property damage, and/or serious
personal injury may result.
C. Freeze Protection
NOTE: Consider piping and installation when determining
heater location. Failure of the water heater due to freeze related
damage IS NOT covered by product warranty.
NEVER use any toxic chemical, including automotive, standard
glycol antifreeze, or ethylene glycol made for hydronic (non-
potable) systems. These chemicals can attack gaskets and seals
in water systems, are poisonous if consumed, and can cause
personal injury or death.
D. Water Temperature Adjustment
If the water heater is going to have a set temperature above
120
F, it is recommended to use an ASSE 1017 rated mixing valve
o
to avoid severe burns or death from scalding temperatures.
Households with small children, disabled, or elderly persons
may require a 120
severe personal injury or death due to scalding.
Approximate Time / Temperature Relationships in Scalds
o
F / 37
o
C or
Table 1 - Approximate Time / Temperature Relationships in Scalds
o
F or lower temperature setting to prevent
120
o
F
More than 5 minutes
125
F
1 1/2 to 2 minutes
o
130
o
F
About 30 seconds
135
o
F
About 10 seconds
140
o
F
Less than 5 seconds
145
F
Less than 3 seconds
o
150
o
F
About 1 1/2 seconds
155
o
F
3
About 1 second
whl-035 Rev. 4.5.16
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