UL 907:4ED 2016-03

FOREWORD
INTRODUCTION
1 Scope
2 General
3 Glossary
CONSTRUCTION
4 Materials
5 Assembly
PERFORMANCE
6 General
7 Test installation
8 Temperature measurement
9 Fire tests
10 Radiant fire test
11 Brand fire test
12 Flash fire test
13 Glazing test
14 Carbon monoxide monitoring test
BLOWER ASSEMBLY
General
15 General
Construction
16 Enclosure
17 Mounting of electrical components
18 Field-installed blower assemblies
19 Field supply connections
20 Grounding
21 Internal wiring
22 Separation of circuits
23 Bonding for grounding
24 Capacitors
25 Insulating materials
26 Motors and motor overcurrent (overload) protection
27 Switches and controllers
28 Transformers
29 Spacings
Performance
30 Test voltages
31 Temperature measurements
32 Input test
33 Temperature test - electrical components
34 Dielectric voltage-withstand test
35 Leakage current test
36 Stalled motor test
37 Strain relief test
38 Short-circuit test
39 Knockout test
MANUFACTURING AND PRODUCTION TESTS
40 Production-line dielectric voltage-withstand test
41 Production-line grounding continuity test
42 General
43 Installation and operating instructions
Appendix
A Standards for components

This revision of ANSI/UL 907 dated August 28, 2019 is being issued to update the title page to reflect the most recent designation as a Reaffirmed American National Standard (ANS).

These requirements apply to fireplace accessories that are intended only for field installation into or attachment to existing masonry fireplaces.