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Determine Installation Location
You must ensure that clearances will be met and that
the vent length will be within required limits. Consider
the installation environment, water quality, and need
for freeze protection. Requirements for the gas line,
water lines, electrical connection, and condensate
disposal can be found in their respective installation
sections of this manual.
Door
Minimum Clearances
The minimum clearances from both combustibles and
non-combustibles construction is:
•
0 inches from the sides
•
0 inches from the back
•
12 inches from the top
•
6 inches from the front
•
0 inches from vent components and condensate
drain line.
*The clearance for servicing is 24 inches in front of the
water heater.
**The clearance for servicing the anode rods is
54 inches from the top of the water heater.
6
•
Choose the right hand truck to support the weight
and size of the water heater. Refer to the
"Specifications" section in this manual for specific
weights and dimensions.
•
Use proper lifting techniques to load the water
heater onto the hand truck:
•
Position the water heater onto the hand truck so
the weight is evenly balanced and the tank is
touching the rails of the hand truck.
•
Secure the water heater to the hand truck:
Position STRAP A around the tankless unit as
illustrated below.
Position STRAP B around the base of the tank
below the LOWER ENCLOSURE.
Strap A
Lower
Enclosure
Strap B
Checklist to Determine Installation
Location
□
The water heater is not exposed to corrosive
compounds in the air.
□
The water heater location complies with the
clearances.
□
For indoor models, the planned venting will not
exceed the maximum length for the number of
elbows used.
□
The planned venting termination/air intake
location meets the clearances.
□
Indoor air is not being used for combustion.
□
The water supply does not contain chemicals or
exceed total hardness that will damage the heat
exchanger.
□
The installation must conform with local codes or,
in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the
Natural Gas and Propane Installation Code, CSA
B149.1.
□
Leave the entire manual taped to the water
heater, or give the entire manual directly to the
consumer.
Demand Duo™ 80
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