Safety Alert Key:

DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.

WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.

CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE: Used to address practices not related to personal injury.

Table of Contents

A.

Congratulations

2

B.

Limited Lifetime Warranty

5

1 Listing and Code Approvals

A.

Appliance Certification

7

B.

Glass Specifications

7

C.

BTU Specifications

7

D.

High Altitude Installations

7

E.

Non-Combustible Materials Specification

7

F.

Combustible Materials Specification

7

G.

Electrical Codes

7

H.

Requirements for the Commonwealth

 

 

of Massachusetts

8

6

Termination Locations

 

 

A. Vent Termination Minimum Clearances

22

7

Vent Information and Diagrams

 

 

A.

Approved Pipe

24

 

B.

Vent Table Key

24

 

C.

Use of Elbows

24

 

D.

Measuring Standards

24

 

E.

Vent Diagrams

25

8

Vent Clearances and Framing

 

 

A. Pipe Clearances to Combustibles

35

 

B.

Wall Penetration Framing

35

 

C. Install the Ceiling Firestop

36

 

D.

Install Attic Insulation Shield

37

User Guide

2 Operating Instructions

A.

Gas Fireplace Safety

9

B.

Your Fireplace

9

C.

Fan Kit (optional)

10

D.

Clear Space

10

E.

Decorative Doors and Fronts

10

F.

Fixed Glass Assembly

10

G. Remote Controls, Wall Controls and Wall

 

Switches

10

H.

IPI Battery Tray/Battery Installation

11

I.

Control Module Operation

11

J.

Before Lighting Fireplace

11

K.

Lighting Instructions (IPI)

12

L.

After Fireplace is Lit

13

M.

Frequently Asked Questions

13

3 Maintenance and Service

A.

Maintenance Tasks-Homeowner

14

B.

Maintenance Tasks-Qualified Service Technician

15

Installer Guide

4 Getting Started

A.

Typical Appliance System

16

B.

Design and Installation Considerations

17

C. Tools and Supplies Needed

17

D. Inspect Appliance and Components

17

5 Framing and Clearances

A.

Select Appliance Location

18

B.

Construct the Appliance Chase

19

C.

Clearances

20

D.

Mantel and Wall Projections

21

9 Appliance Preparation

A.

Top Vent

38

B.

Rear Vent

39

C.

Secure and Level the Appliance

40

10 Install Vent Pipe

A. Assemble Vent Sections (DVP Only)

41

B.

Assemble Vent Sections (SLP Only)

42

C. Assemble Slip Sections

42

D. Secure the Vent Sections

43

E.

Disassemble Vent Sections

43

F.Install Decorative Ceiling Components

 

(SLP only)

44

G.

Install Metal Roof Flashing

45

H.

Assemble and Install Storm Collar

45

I.

Install Vertical Termination Cap

46

J.

Install Decorative Wall Components (SLP only)

46

K.

Heat Shield Requirements for Horizontal

 

 

Termination

46

L.

Install Horizontal Termination Cap

47

11 Shrouds

A.

HHT Shrouds

48

B.

Field Constructed Shrouds

48

12 Gas Information

A.

Fuel Conversion

50

B.

Gas Pressure

50

C.

Gas Connection

50

D.

High Altitude Installations

50

13 Electrical Information

A.

Wiring Requirements

51

B.

Intellifire Plus™ Ignition System Wiring

51

C.

Optional Accessories Requirements

51

D.

Electrical Service and Repair

52

E.

Junction Box Installation

53

F.

Wall Switch Installation for Fan (Optional)

53

G.

Remote Control Installation & Operations

54

Heatilator • Novus NNXT • 4055-879 • Rev. o • 2/12

3

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Heatiator NNXT3933IL, NNXT4236IL NNXT3933I owner manual Table of Contents