Navien NPE-180A2 Conversion Manual

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Installation manual (143 pages)

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If conversion to Propane Gas is required by the Water heater,

use the Propane CONVERSION KIT supplied with the water

heater.

Note

Condensing Water Heater

Propane Gas

Conversion Guide

(Altitude : 0 - 10,100 ft)

Do Not use for Natural gas

Model

NPE-180A2/210A2/240A2

NPE-150S2/180S2/210S2/240S2

For NG high altitude conversion, use the HIGH

ALTITUDE CONVERSION KIT.

For LP high altitude conversion, use the

PROPANE CONVERSION KIT. Note that the Gas

covers the water heater's installation at an

altitude of 0 to 10,100 ft.

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Summary of Contents for Navien NPE-180A2

Page 1 Propane Gas Conversion Guide (Altitude : 0 - 10,100 ft) Do Not use for Natural gas Model NPE-180A2/210A2/240A2 NPE-150S2/180S2/210S2/240S2 If conversion to Propane Gas is required by the Water heater, use the Propane CONVERSION KIT supplied with the water heater.
Page 2 WARNING agency* in accordance with Navien’s instructions and all applicable codes and requirements of the authority having jurisdiction. The information in these instructions must be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury or death.
Page 3 Included Items: Model Type Type Size NPE-150S2 0 - 10,100 ft Φ5.10 Propane Φ3.65 / NPE-180A2/S2 0 - 10,100 ft Φ4.95 NPE-210A2/S2 Φ3.90 / 0 - 10,100 ft NPE-240A2/S2 Φ5.65 WARNING Be careful not to confuse the PROPANE CONVERSION KIT and HIGH ALTITUDE CONVERSION KIT.
Page 4 Procedure: 2. Using a Phillips hand screwdriver, remove 4 screws (2 from the top and 2 from the bottom) of the front cover assembly to gain access to the internal components. See Figure 1 for illustration of the front cover on the unit. Gas Inlet Pipe Gas Valve...
Page 5 4. Use a Phillips screwdriver to remove the two screws at Location A - the connection below the Gas Valve where it connects to the pipe. See Figure 3 for reference. Once the screws are removed, carefully separate the pipe from the Gas Valve.
Page 6 This setting is suitable for natural gas and Attempting to alter or measure the gas valve outlet pressure could result in damage to the valve, causing potential severe personal injury, death or substantial property damage. Navien water heaters are shipped ready to fire natural gas ONLY.
Page 7 Packing Packing O-ring O-ring <NPE-150S2> <NPE-180A2/S2, 210A2/S2, 240A2/S2> Figure 5. Exploded view of Gas assembly DANGER See Figure 5. Inspect the O-ring between the gas valve and gas valve inlet adapter whenever they are disassembled. The O-ring must be in good condition and must be installed.
Page 8 Packing Packings <NPE-150S2> <NPE-180A2/ 210A2/ 240A2/180S2/ 210S2/ 240S2> 8. Replace the gas inlet pipe to its original position and use all screws to secure all connections. Do not overtighten as this may damage or Note crack the components.
Page 9 DANGER Inspect the O-ring between the gas valve and gas valve inlet adapter whenever they are disassembled. The O-ring must be in good condition and must be installed. Failure to comply will cause a gas leak, resulting in severe personal injury or death.
Page 10 c. In error display mode, press the Back button ( ) to execute the Gas Type Check menu under Start-Up Wizard. d. Set the Gas Type Check option to Propane Gas. Conversion Kit Required option, the error is cleared and the water heater starts to operate normally. 10.
Page 11 Insert the analyzer into the port. Figure 7 High Fire Low Fire Water Heater Altitude Fuel Propane NPE-150S2 0 - 10,100 ft 10.7 11.0 NPE-180A2 Propane 0 - 10,100 ft 10.5 10.7 NPE-180S2 NPE-210A2 Propane 0 - 10,100 ft 10.5 10.7...
Page 12 heater to operate at 1-stage MIN mode (refer to page 8). Measure the CO value at low fire. If the CO value is not within 0.5% of the value listed in Table 2, the gas valve set screw will need to be adjusted. If adjustment is necessary, locate the set screw as shown in Figure 8.
Page 13 Model Altitude Kit Part No. Type Propane -0.03 in ± NPE-150S2 0 - 10,100 ft NAC-L150 0.01 in NPE-180A2 Propane -0.02 in ± 0 - 10,100 ft NAC-L180 NPE-180S2 0.01 in NPE-210A2 Propane -0.02 in ± 0 - 10,100 ft...
Page 14 to operate at 1-stage MIN mode (refer to page 8). ire and compare it to the gas valve set screw will need to be adjusted. If adjustment is necessary, locate the set screw as shown in Figure 10. Using a in or 4 mm Allen wrench, turn the set screw no more than turn...
Page 15 13. Once the CO apply the included conversion stickers to show that the appliance has been converted to propane gas. Place this labels adjacent to the rating plate as shown in Figure 11. This unit has been This water heater was converted on Converted to Propane fuel / Cet appareil a ete converti au Propane ______/______/______ to ____________ gas...
Page 16 Set the water heater to run in the 2-stage 5. 2 maximum operation mode. 3. Press the Back button ( ) to return to the previous screen or menu. Navien, Inc. 20 Goodyear lrvine, CA 92618 TEL 1-800-519-8794 FAX 1-949-420-0430 www.navieninc.com...

This manual is also suitable for:

Npe-210a2 Npe-240a2 Npe-150s2 Npe-180s2 Npe-210s2 Npe-240s2