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NPE-150S2
Navien NPE-150S2 User Manual
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11
About the
Wa
ter Heater
Intake Air Duct
Intake Air Filter
Exhaust Duct
V
ent Installation Detector (
VID)
Exhaust Limit
T
emperature Sensor
Exhaust Body
Ignition T
ransformer
Burner High Limit Fuse
Burner
Primary Heat
Exchanger
Igniter/Flame Rod
Secondary Heat
Exchanger
W
ater Adjust Valve
(Built in Flow Sensor)
Condensate T
rap
Fr
ont Panel
PCB Box
Mixing Valv
e
W
ater Inlet Filt
er
Cold W
ater
Inlet
Fitting
Condensate Drain
Cap
F
an Motor
Dual V
enturi
Gas Pipe
Gas Valv
e
Air Pressur
e S
ensor
(APS)
DHW Supply Fitting
Gas Inlet Fitting
[NPE-180S2/ 210S2/ 240S2]
10
12
Table of Contents
Table of Contents
2
Important Safety Information
3
About the Water Heater
6
Included Items
6
Accessories
6
Specifications
7
The Front Panel
8
Components
9
Dimensions
12
Rating Plate
14
Installing the Water Heater
15
Choosing an Installation Location
15
Mounting the Water Heater to the Wall
18
Connecting the Gas Supply
19
Connecting the Water Supply
25
Connecting the Condensate Drain
38
Venting for Combustion Air
41
Connecting the Power Supply
59
Setting the DIP Switches
60
Configuring the Remote Controller System
62
Included Items
62
Accessories
62
Connecting the Extension Cable
62
Attaching the Wall Mounting Bracket
62
Remote Controller
63
Multi Remote Controller System
64
Entering Lock Mode
66
Setting the Clock
66
Setting the Recirculation Timer
67
Starting Recirculation
68
Canceling All Timer Settings
68
Installing a Cascade System
69
Connecting Water Supplies
69
Connecting the Communication Cables
71
Installing a Common Vent System
73
About the Common Vent System
73
Navien Common Vent Collar Kit (Back-Draft Damper)
79
Starting the Common Vent System
80
Connecting and Terminating the Vent Pipe
84
Installing a Condensate Drain
85
Setting up the Common Vent System
86
Common Vent Termination Clearances
86
Maintenance
87
Operating the Water Heater
89
Turning the Water Heater on or off
89
Start-Up Wizard
89
Adjusting the Water Temperature
90
Accessing the Basic Menu Items
91
Accessing Advanced Menu Items
97
Appendixes
107
Gas & High Altitude Conversion
107
Flushing the Heat Exchanger
115
Technical Data
117
Wiring Diagram
120
Ladder Diagram
121
Component Assembly Diagrams and Parts Lists
122
Installation Checklist
135
Navien H2Air Add-On Controller Kit (Optional)
137
AHU Application with
139
Communication (Optional)
139
Requirements for the State of Massachusetts
140
Date Purchased
143
Serial Number
143
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Navien NPE-150S2 Specifications
General
Brand
Navien
Model
NPE-150S2
Category
Water Heater
Language
English
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