Engineering Submittal Sheet

ManualsBrandsBosch ManualsPlumbingTherm 18" Liquid Propane Gas Tankless Water Heater With 199,000 BTU Max Input, Energy Star Rated, Electronic Ignition, 150 PSI Max Water Pressure, Non-Condensing, In Grey

940 ES

Gas Tankless Water Heater

Engineering

Submittal

Sheet

940 ES Performance Data

Maximum Gas Input (BTU) 199,000

Minimum Input (BTU) 19,900

Maximum Output (BTU) 160,500

Minimum Output (BTU) 18,300

Thermal Efﬁ ciency 83%

940 ES Operational Data

Weight (lbs.) 67

Min. Inlet Gas Pressure NG("WC) / LP("WC) 3.5 / 8

Max. Inlet Gas Pressure NG("WC) / LP("WC) 10.5 / 13

940 ES Maximum Output Temperature (°F) 140°F

Flow Rate at 35°F ∆T (GPM) 9.4

Flow Rate at 45°F ∆T (GPM) 7.2

Flow Rate at 50°F ∆T (GPM) 6.6

Flow Rate at 60°F ∆T (GPM) 5.5

Max. Working Pressure (psi) 150

Min. Working Pressure (psi) 30

Min. Activation Flow (GPM) 0.5

Relief Valve Pressure Rating (psi) 150

Venting Category III

940 ES Approved Venting Material

Item Diameter Material

Exhaust

Vent

3 or 4 inches

Sealed single wall stainless steel

(AL29-4C)

Intake

Vent

3 or 4 inches

Sealed PVC or any other rigid pipe

940 ES Clearances

Minimum Clearance

to Combustibles

(Inch)

Front 1

Rear 0

Side 1

Floor 12

Additional Information

• Low NOx emissions

• Modulating water valve to improve temperature

stability

• Modulating premix burner with constant gas/air ratio

• Direct-vent sealed combustion

• Direct spark ignition

• 150 psi relief valve included

• Concentric termination available

• LCD display with backlight / control buttons

• 100% copper heat exchanger

Options

• Wireless remote control (TSTAT2)

• Cascading kit (77090003962)

• Outdoor kit (BTOK)

• External water ﬁ lter (8703305356)

• Concentric termination kit (ESHCK)

• Exhaust/Intake bird screen (L2594)

• Gas conversion kit (8 719002176)

• Pipe Cover (PTPCES)

• High temperature kit (7736500074)

• Recess box kit (7736500043)

• Pressure relief valve (FWL-2).

Note: Refer to installation and applications manual for speciﬁ c

information on venting, piping, electrical connections, and

pump sizing.

10 20 30 40 50 60 70 80 90

Degree rise (°F)

GPM

0 5

Degree rise (°F)

0 E

940 ES Degree rise versus flow rate

Summary of content (2 pages)

PAGE 1
Engineering Submittal Sheet 940 ES Gas Tankless Water Heater Additional Information 940 ES Performance Data Maximum Gas Input (BTU) • • 199,000 Minimum Input (BTU) 19,900 Maximum Output (BTU) 160,500 Minimum Output (BTU) 18,300 Thermal Efficiency 83% 940 ES Operational Data Weight (lbs.) 67 Min. Inlet Gas Pressure NG("WC) / LP("WC) 3.5 / 8 Max. Inlet Gas Pressure NG("WC) / LP("WC) 10.5 / 13 940 ES Maximum Output Temperature (°F) 140°F Flow Rate at 35°F ∆T (GPM) 9.
PAGE 2
| 940 ES Gas Condensing Water Heater | Engineering Submittal Sheet 940 ES Electrical Specifications Electrical Voltage Mains 120V/60Hz Power Consumption Max Load (A) 940 ES Bottom View ≤ 2.5 40 3" or 4" Combustion Air Pipe Diameter 3" or 4" Gas Connection Size ¾" NPT Water Connections ¾" NPT Note: Exhaust and combustion air connection adaptors are 3" diameter.