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INSTALLATION AND OPERATING INSTRUCTIONS
SFT 199 TANKLESS WATER HEATER
SPECIFICATION SFT 199
Heat Capacity (Input) Natural Gas 28,500-199,000 BTU/H
Propane 28,500-199,000 BTU/H
Ef ciency Ratings (NG & LP) U.E.F 0.89
Flow Rate (DHW) 35°F (19°C) Temp Rise 10.1 GPM (38 L/m)
45°F (25°C) Temp Rise 7.9 GPM 30 L/m)
67°F (36°C) Temp Rise
5.3 GPM (20 L/m)
Dimensions - w, h, d 17.7 in. x 29.8 in. x 10.9 in (450 mm x 757 mm x 277 mm)
Weight (empty) – lbs/Kg 68 lbs/ 31 kg
Installation Type Indoor only wall-hung
Venting Type Forced Draft Direct Vent
Electronic Ignition
Water Pressure 40 - 150 PSI
Natural Gas Supply Pressure (from source) 5 in WC-14 in WC
Propane Gas Supply Pressure (from source) 5 in WC-14 in WC
Minimum Flow Rate to activate DHW heating -
USgpm
0.5
Connection Sizes Cold Water Inlet 3/4″ Male NPT
Hot Water Outlet 3/4″ Male NPT
Gas Inlet 3/4″ Male NPT
Pressure Vessel water content – USG/Liters 0.19 / 0.72
Ambient Temperature – Low (°F/°C) 32 / 0
Ambient Temperature – High (°F/°C) 122 / 50
Max relative humidity (non-condensing) 90%
Min water Temperature – Domestic Hot Water (°F/°C) 34 / 1
Max water Temperature – Domestic Hot Water (°F/°C) 149 / 65
Power Supply Main Supply 120Vac, 60Hz
Watts @ full re 100 watts
Materials Casing Painted steel and plastic
Heat Exchangers Copper tubes in AL block
Venting Intake & Exhaust 2″ or 3″ PVC, CPVC,
Polypropylene
2″ or 3″ Special Gas Vent
Type BH (Class II, A/B/C)
Vent Clearances 0″ to combustibles
Safety Devices Flame Proving module, Flue
Gas Temperature Sensor,
Protective fuse
Certi ed design ANSI Z21.10.3 • CSA 4.3
Freeze Protection Yes
* Units ship con gured for Natural Gas (NG) with a Propane (LP) conversion kit included. Converting an LP unit back to NG requires the certi ed NG conversion kit that
can be ordered separately.
SPECIFICATIONS
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