What to do if you smell gas
Models NNXT4236I, NNXT4236IL NNXT3933I, NNXT3933IL
Owner’s Manual
Homeowner Reference Information
Read this manual before installing or operating this appliance
Please retain this owner’s manual for future reference
A. Congratulations
User Guide
Table of Contents
Safety Alert Key
Installer Guide
Accessories
Remove Screen Package Assembly
Removing Fixed Glass Assembly
Clean the Appliance
WARRANTY PERIOD
B. Limited Lifetime Warranty
Hearth & Home Technologies Inc LIMITED LIFETIME WARRANTY
WARRANTY COVERAGE
This warranty is void if
B. Limited Lifetime Warranty continued
WARRANTY CONDITIONS
WARRANTY EXCLUSIONS
B. Glass Specifications
D. High Altitude Installations
1 Listing and Code Approvals
A. Appliance Certification
Signage
H. Requirements for the Commonwealth of Massachusetts
Installation of Carbon Monoxide Detectors
Approved Carbon Monoxide Detectors
B. Your Fireplace
A. Gas Fireplace Safety
User Guide
2 Operating Instructions
D. Clear Space
F. Fixed Glass Assembly
G. Remote Controls, Wall Controls and Wall Switches
C. Fan Kit optional
5. Module Reset
H. IPI Battery Tray/Battery Installation
I. Control Module Operation
J. Before Lighting Fireplace
LIGHTING INSTRUCTIONS IPI
K. Lighting Instructions IPI
Final inspection by
FOR YOUR SAFETY READ BEFORE LIGHTING
NOTICE! Open windows for air circulation during fireplace break-in
M. Frequently Asked Questions
L. After Fireplace is Lit
Initial Break-in Procedure
Remote Control
3 Maintenance and Service
A. Maintenance Tasks-Homeowner
Glass Cleaning
Firebox
B. Maintenance Tasks-Qualified Service Technician
Gasket Seal and Glass Assembly Inspection
Logs
Getting Started
Installer Guide
A. Typical Appliance System
C. Tools and Supplies Needed
B. Design and Installation Considerations
D. Inspect Appliance and Components
Figure 5.1 Appliance Locations
5 Framing and Clearances
A. Select Appliance Location
Model
B. Construct the Appliance Chase
C. Clearances
Mantels
D. Mantel and Wall Projections
Mantel Legs or Wall Projections
20 in
6 Termination Locations
A. Vent Termination Minimum Clearances
Horizontal
Heatilator Novus NNXT 4055-879 Rev. o 2/12
Figure 6.3 Minimum Clearances for Termination
S min = # term caps x
T max = 2/# term caps x S actual
C. Use of Elbows
7 Vent Information and Diagrams
A. Approved Pipe
B. Vent Table Key
One Elbow
E. Vent Diagrams
1. Top Vent - Horizontal Termination
V1 H1
Two 45 Elbows replacing One 90 Elbow
1. Top Vent - Horizontal Termination - continued
H3 Installed Horizontally
Installed Vertically
1. Top Vent - Horizontal Termination - continued
Installed Vertically
2. Top Vent - Vertical Termination
Install Top Vent Flue Visor - No Elbow Configura
Lower & twist pull out
Remove the side refractory
Lift top refractory and hold in place
Pull side refractory forward & out
Heatilator Novus NNXT 4055-879 Rev. o 2/12
2. Top Vent - Vertical Termination - continued
Three Elbows
12 ft 3.66 m min 60 ft 18.29 m max
Heatilator Novus NNXT 4055-879 Rev. o 2/12
2. Top Vent - Vertical Termination - continued
Two Elbows
12 ft 3.66 m min. 60 ft 18.29 m max
One 45 Elbow
3. Rear Vent - Horizontal Termination
18 in. 457 mm max
No Elbow
Two Elbows
V1 H1
3. Rear Vent - Horizontal Termination - continued
Installed Horizontally
Two Elbows
4. Rear Vent - Vertical Termination
One Elbow
0 min 6 ft 1.83 m max 12 ft 3.66 m min 60 ft 18.29 m max
60 ft 18.29 m max. Maximum horizontal run is
4. Rear Vent - Vertical Termination - continued
Three Elbows
0 min 6 ft 1.83 m max 12 ft 3.66 m min
Combustible Wall Penetration
8 Vent Clearances and Framing
A. Pipe Clearances to Combustibles
B. Wall Penetration Framing
C. Install the Ceiling Firestop
Flat Ceiling Installation
D. Install Attic Insulation Shield
Vaulted Ceiling Installation
NOTICE Once appliance is set up for top or rear venting
9 Appliance Preparation
A. Top Vent
Wear protective gloves and safety glasses during installa
it CANNOT be changed at a later time
B. Rear Vent
NOTICE Once appliance is set up for top or rear venting
Discard the vent cap, remove and discard the insulation
Framing and other combustible materials
C. Secure and Level the Appliance
WARNING! Risk of Fire! Prevent contact with
Sagging or loose insulation Insulation backing or plastic
Assemble Pipe Sections
10 Install Vent Pipe
A. Assemble Vent Sections DVP Only
Attach Pipe to the Firebox Assembly
C. Assemble Slip Sections
B. Assemble Vent Sections SLP Only
Only outer pipes are sealed, sealing the inner flue is not required
E. Disassemble Vent Sections
D. Secure the Vent Sections
F. Install Decorative Ceiling Components SLP only
H. Assemble and Install Storm Collar
G. Install Metal Roof Flashing
CAULK
Termination Cap
I. Install Vertical Termination Cap
J. Install Decorative Wall Components SLP only
K. Heat Shield Requirements for Horizontal Termination
1-1/2 38 mm minimum overlap of flue telescoping section is required
L. Install Horizontal Termination Cap
Failure to maintain overlap may cause overheating and fire
Open Top Shroud may be used with DVP-TV, DVP-TVHW, SLP-TVHW
11 Shrouds
A. HHT Shrouds
B. Field Constructed Shrouds
Roofed Style Shroud may be used with DVP-TV, DVP-TVHW, SLP-TVHW
Figure 11.2 Mailbox Style Shroud Dimensions
Figure 11.2 Roofed Style Shroud Dimensions
Mailbox Style Shroud may be used with DVP-TV, DVP-TVHW, SLP-TVHW
C. Gas Connection
12 Gas Information
A. Fuel Conversion
B. Gas Pressure
13 Electrical Information
A. Wiring Requirements
B. Intellifire Plus Ignition System Wiring
C. Optional Accessories Requirements
Figure 13.1 RC200 Wiring Diagram
D. Electrical Service and Repair
Power
E. Junction Box Installation
F. Wall Switch Installation for Fan Optional
Switch
Determine Location
G. Remote Control Installation & Operations
Installation Precautions
Introduction
RED LED
Installation of Remote Control Housing
AUX200 Module Installation
Fan Installation
FAN CORD
Setting the Child Lock
Programming the RC200 to the Control Module
Function Buttons
NOTICE Battery polarity must be correct or module damage will occur
Power Outage
Frequently Asked Questions/Troubleshooting
Manual Fireplace Shutoff
Mantels
14 Finishing
A. Mantel and Wall Projections
Figure 14.1 Minimum Vertical and Maximum Horizontal Dimensions
B. Facing Material
A. Remove the Packaging
15 Appliance Setup
B. Remove Screen Package Assembly
D. Removing Fixed Glass Assembly
I. Place the Rockwool
G. Clean the Appliance
H. Accessories
L. Assemble Logs
N. Air Shutter Setting
M. Replacing Fixed Glass Assembly
Close Open
P. Unpackage the Hood & Floor Cover
Q. Install Hood
R. Install Control Heat Shield
O. Remove Screen Protector
Bend to a 90 angle
S. Install Floor Cover
Control Heat Shield in Place
Open
T. Close the Screen Assembly
Hang Screen on Shoulder Screws
Possible Cause
16 Troubleshooting
A. Intellifire Plus Intermittent Ignition System
Symptom
Intellifire Plus Intermittent Pilot Ignition System - continued
Alternative
A. Appliance Dimension Diagram
17 Reference Materials
19-1/8 in 486 mm 11-5/8in 295 mm Gas Line Access
267 mm
B. Vent Components Diagrams
124 mm
10-1/2 in
Roof Flashing Multi-pak
B. Vent Components Diagrams continued
RF6M
RF12M
229 mm
B. Vent Components Diagrams continued
9 in
2-3/4 in
Effective
B. Vent Components Diagrams continued
15-1/8 in 384 mm 12 in. 305 mm
8 in 203 mm Heat Shield
DVP-HRC-ZC-SS
B. Vent Components Diagrams continued
DVP-TRAP to DVP-HPC Side Filler Kit
DVP-HRC-SS
B. Vent Components Diagrams continued
3-13/16 in
B. Vent Components Diagrams continued
203 mm
101 mm
2-3/4 in
B. Vent Components Diagrams continued
9 in
12-1/2 in
Part number list on following page
Log Set Assembly
C. Service Parts
NNXT3933I, NNXT4236I
at Depot
C. Service Parts continued
NNXT3933I, NNXT3933IL
Stocked
at Depot
NNXT4236I, NNXT4236IL
C. Service Parts continued
Stocked
NNXT3933I, NNXT4236I
#16 Ignition Control Assembly
C. Service Parts
#15 Valve Assembly
TCG375 Terra Cotta Cap LDSCP-M Shroud Leg Multipack not shown
D. Optional Components
LDS33/LDS46 Decorative Shroud
LDS-BV Decorative Shroud
DO NOT DISCARD THIS MANUAL
E. Contact Information