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SECTION II: SPECIFICATIONS
Table 1. Specifications.
* Minimum flow may vary slightly depending on the temperature setting and the inlet water temperature.
** For commercial and hydronic applications requiring higher temperatures. Requires the use of an optional controller
(P/N 239-47805-00).
Bradford White Corporation is continually updating and improving products. Therefore, specifications are subject to
change without prior notice.
The maximum inlet gas pressure must not exceed the value specified by the manufacturer. The minimum value
listed is for the purpose of input adjustment.
Model
TG-150I-N(X) TG-180I-N(X) TG-199I-N(X) TG-237I-N(X) TG-237I-N(X)A
Minimum Rate Btu/h 15,000 19,000
Maximum Rate Btu/h 150,000 180,000
199,000 Natural
Gas
190,000
Propane
237,000
Flow Rate (Min-Max) *
0.6-5.0 GPM
(2.3-18.9
L/min)
0.6-7.5 GPM
(2.3-28.4 L/min)
0.6-9.4 GPM
(2.3-35.5 L/min)
0.6-9.8 GPM
(2.3-37 L/min)
Flow Rate (45F rise)
5.0 GPM
(18.9 L/min)
6.7 GPM
(25.4 L/min)
7.1 GPM
(27.0 L/min)
8.5 GPM
(32.2 L/min)
Default Temperature Setting 104°F (40°C)
Maximum Temp Setting (commercial **) 160°F (71°C) 180°F (82°C) 185°F (85°C)
Maximum Temp Setting (residential) 120°F (49°C)
Minimum Temperature Setting 96°F (36°C) 98°F (37°C)
Weight 50 lb (23 kg) 55 lb (25 kg)
Energy Factor 0.82 0.82 0.82 N/A
Thermal Efficiency 84%
Noise level (inside rating) 49 dB
Electrical
Consumption
Normal 53 W 65 W 79 W 99 W
Standby 2 W
Anti-frost
Protection
100 W 100 W 116 W
By-Pass Control Fixed Electronic
Minimum Gas Supply
Pressure
Natural Gas 5.0 inch W.C.
Propane 8.0 inch W.C.
Maximum Gas Supply
Pressure
Natural Gas 10.5 inch W.C.
Propane 13.5 inch W.C.
Type of Appliance Direct Vent, Temperature controlled continuous flow gas water heater
Operation With or without remote controls, mounted in kitchen, bathroom, etc.
Approved Gas Type Natural Gas or Propane-Ensure unit matches gas type supplied at the installation location.
Connections Gas Supply: 3/4" MNPT, Cold Water Inlet: 3/4" MNPT, Hot Water Outlet: 3/4" MNPT
Ignition System Direct Spark Ignition
Electric Connections Water Heater: AC 120 Volts, 60Hz. Remote Control: DC 12 Volts (Digital)
Water Temperature Control Simulation Feedforward and Feedback
Minimum Water Supply Pressure 20 PSI (Recommended 30-80 PSI for maximum performance)
Maximum Water Supply Pressure 150 PSI
Remote Control Cable Non-Polarized Two Core Cable (Minimum 22 AWG)
ENERGY STAR
®
Qualified Yes (Both U.S. and Canada) No