1-1
INSTALLATION
SFT 199 TANKLESS WATER HEATER
1.0 INSTALLATION
1.1 GENERAL
SFT series gas red modulating water heaters are designed to be used for
domestic (residential) purposes. Domestic use is considered to be an average
annual gas usage of ± 4000 m
3
(± 140,000 ft
3
) for natural gas or ± 5680 L (1500
US gallons) for propane. The products are fully condensing units with variable
input ranges (see specifi cation chart - page 3). The units are approved as
“Category IV” vented appliances using Direct Vent (sealed combustion).
Figures 1a and 1b show outer case dimensions and piping. Use this diagram to
nd a suitable location for the unit. See also Section 1.3 Location.
Figure 1a: Dimensions / Connections for SFT Series
NOTE
Commercial use is allowed
only if the unit is regularly
maintained, and the heat
exchanger is cleaned at least
once a year, or more often if
the unit is experiencing heavy
use. Note: If the appliance is
serving only one residential
appliance in a multi-family
building, then the appliance
shall be considered used for
residential use.
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