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Unpacking
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Navien Combination Boiler
User’s Information Manual,
Installation & Operation Manual
Wall mounting bracket
Tapping screws and anchors
Vent terminators
Wall flanges
Conversion Kit
Spare Parts
Pressure Relief Valve (30PSI)
Flow Restrictors
Model
NCB-150E/180E/210E/240E
Quick Installation Guide
STEP 1 Before Installing
Read the Installation & Operation Manual before installing.
This product must be installed and serviced by a licensed plumber,
a licensed gas fitter, or a professional service technician. Navien is
not liable for any damages or defects resulting from improper
installation.
When applicable, the installation must conform with Manufactured
Home Construction and Safety Standard, Title 24 CFR, Part 3280
and/or CAN/CSA Z240 MH Series, Mobile Homes.
WARNING
Follow all local codes and/or the most recent edition of the National Fuel Gas Code (ANSI
Z223.1/NFPA 54) in the USA, or the Natural Gas and Propane Installation Code in Canada
(CAN/CGA B149.1).
Safety
DO NOT install the boiler in areas with excessively high humidity.
Location Requirements
Select the best location on “Choosing an Installation” in the Installation & Operation
Manual.
Allowable minimum clearances
Top
Back
Side
Side
Front
Bottom
Clearance
Indoor Installation
Top
9 in (229 mm) minimum
Back
0.5 in (13 mm) minimum
Front
4 in (100 mm) minimum
Sides
3 in (76 mm) minimum
Bottom
12 in (300 mm) minimum
STEP 2 Installing
Checking the Rating Plate
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Rating Plate, *Plaque Signalétique
Combination Boiler *
Chaudière combinaison
Navien, Inc.
20 Goodyear, Irvine, CA 92618
Tel: 1-800-519-8794
Direct vent indoor installation,
* Évacuation directe installation intérieure
Model No
.,
*Numéro de modèle
Type of Gas
,
*Type de gaz
NCB-240E
NG
Max. Input Rating (DHW),
*Entrée GPL max.
Min. Input Rating,
*Débit calorifique max.
199,900 Btu/h
18,000 Btu/h
Max. Input Rating (Heating),
*Entrée GPL max.
Heating Capacity,
*Capacité de chauffage
120,000 Btu/h
112,000 Btu/h
Category of boiler,
*Catégorie de chaudière
Net AHRI Rating,
*Régime de AHRI
Category IV
97,000 Btu/h
Max. Inlet Gas Pressure,
*Pression max. de gaz d’entrée
10.5 Inches W.C.
*pouces W.C.
Min. Inlet Gas Pressure
,
*Pression min. de gaz d’entrée
3.5 Inches W.C.
*pouces W.C.
Manifold Pressure,
*Pression d’admission
-1.20 Inches W.C.
*pouces W.C.
Electrical Rating
,
*Régime nominal électrique
AC
*c.a.
120 Volts 60Hz Use less than 2 Amp,
*Utilise moins de 2A
Minimum relief valve capacity
, *Capacité minimaum soupape.
189 lbs/hr
ANSI Z21.13b-2014 · CSA 4.9b-2014
Orifices necessary for LP conversion are provided.
*Les injectures nécessaires à la conversion au GPL sont fournis.
Failure to use the correct gas can cause problems which can result in death, serious injury or property damage.
*Le fait de ne pas
utiliser le bon gaz peut causer des problèmes qui peuvent mener à la mort, causer des blessures graves ou endommager la propriété.
Consult your installation manual for more information.
*Consultez votre manuel d’installation pour plus d’information.
This appliance is certified for use at altitudes up to 4,500 ft (1,370 m) in accordance to the latest CAN/CGA 2.17-High Altitude
Installation procedures at normal manifold pressure. For installation instructions at altitudes higher than 4,500 ft, please contact
Navien.
*Cet appareil est certifié pour une utilisation à des altitudes de 0 à 4,500 pieds (1,370 m) conformément aux toutes les procédures
d’installation à haute altitude CAN/CGA 2.17 à une pression normale. Pour les installations à élévations en haut de 4,500 pieds, appeler le
bureau de Navien.
This appliance must be installed in accordance with local codes or in the absence of local codes, the most recent edition of
National Fuel Gas Code, ANSI Z223. 1, in Canada use CAN/CGA B149. 1 or 2 installation codes for Gas Burning Appliances.
*Cet appareil doit être installé conformément aux codes locaux, ou s’il n’y a pas de codes locaux, la plus récente version du National Fuel
Gas Code des É.-U., ANSI Z223. 1, au Canada utilisez les codes d’installation CAN/CGA B149. 1 ou 2 pour les appareils à gaz.
FOR YOUR SAFETY *POUR VOTRE SÉCURITÉ
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other gas appliances.
*Ne rangez
pas et n'utilisez pas d'essence ou d'autres liquides ou vapeurs inflammables près de cet appareil ou de tout autre appareil électroménager.
This boiler is configured for Natural Gas
from the factory. If conversion to Propane
Gas in required, the conversion kit supplied
with the boiler must be used.
WARNING
e
Before connecting the gas supply, determine the gas type and pressure for the boiler by
referring to the rating plate. Use only the same gas type indicated on the rating plate. Using a
different gas type will result in abnormal combustion and malfunction of the boiler. Gas
supplies should be connected by a licensed professional only.
e
The appliance and its gas connection must be leak tested before placing the appliance in
operation.
e
This boiler cannot be converted from natural gas to propane or vice versa without a Navien gas
conversion kit. Do not attempt a field conversion of this boiler without a Navien gas conversion
kit. Doing so will result in dangerous operating conditions and will void the warranty.
Navien Inc. is not liable for any property damage and/or personal injury resulting from
improper conversions.
Mounting on the Wall
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CAUTION
Do not install the boiler on dry walls without proper reinforcement.
Drill in the supplied anchor bolts after considering
where the vent termination will be located.
1
Lift up the boiler, rest the unit on the hooks
provided on the wall bracket on the wall.
Secure the mounting bracket to the wall
with the tapping screws and anchors.
2
Removing the Front Cover
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Unclasp the 3 buckles
that fix the cover to the
boiler, and then
remove the cover by
lifting it and pulling it
outward
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1
2
3
