UL 462:3ED 2010-12

Foreword
Introduction
1 Scope
2 General
3 Glossary
4 Installation instructions
Construction
5 Components
6 Assembly
7 Materials
8 Electrical enclosures
9 Supply connections
10 Current-carrying parts
11 Switches and controllers
12 Mounting of electrical components
13 Internal wiring
14 Separation of circuits
15 Bonding for grounding
16 Motors and motor overcurrent (overload) protection
17 Capacitors
18 Insulating material
19 Electrical spacings
Performance
20 General
21 Mounting positions
22 Test voltages
23 Input test
24 Heating test
25 Abnormal heating test
26 Operation test
27 Draft loss test
28 Hydrostatic strength test
29 Dielectric voltage-withstand test
30 Leakage current test - cord-connector products
31 Stalled blower motor test
Manufacturing and production tests
32 Production-line dielectrical voltage-withstand test
33 General
Appendix
A Standards for components

This revision to UL 462 is being issued to remove the reference to the withdrawal date of UL 873 and to address universal upkeep of UL Standards for Safety.

1.1 These requirements cover heat reclaimers which are intended to recover a portion of heat from the flue gases of gas-, oil-, or solid fuel-fired appliances for the purpose of heating space or water.