Table of Contents
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1.
General ............................................................................................................................. 4
2.
Safety Symbols .................................................................................................................. 4
3.
Introduction Models UMLA/UMLVA ........................................................................................ 4
4.
Heat Loss........................................................................................................................... 4
5.
Locating the Unit ................................................................................................................ 5
5.1
Upflow Installation .............................................................................................................. 5
5.2
Downflow Installation .......................................................................................................... 5
5.3
Horizontal Installation .......................................................................................................... 5
5.3a Non-Suspended Installation .................................................................................................. 5
5.3b Suspended Installation ........................................................................................................ 5
6.
Furnace Used In Conjunction With Air Conditioning .................................................................. 6
7.
Air Filter ............................................................................................................................ 6
8.
Ductwork ........................................................................................................................... 6
9.
Combustion and Ventilation Air ............................................................................................. 7
10.
Chimney Venting ................................................................................................................. 7
11.
Barometric Damper Control .................................................................................................. 8
12.
Optional Direct Venting ........................................................................................................ 8
13a. Fan Timer Board And Limit Control (UMLA) ........................................................................... 8
13b. Fan Timer Board And Limit Control (UMLVA) ........................................................................... 8
14.
Electrical Connections .......................................................................................................... 8
15.
Humidifier .......................................................................................................................... 9
16.
Piping Installation ............................................................................................................... 9
17.
Oil Filter ............................................................................................................................. 9
18.
Oil Burner Nozzles ............................................................................................................... 9
19.
Oil Burner Adjustment ......................................................................................................... 9
20.
Burner Electrodes ................................................................................................................ 9
21.
Burner Primary (Safety) Control ............................................................................................ 9
22a. Circulating Air Blower (UMLA) ..............................................................................................10
22b. Circulating Air Blower (UMLVA) .............................................................................................10
23.
Maintenance And Service ....................................................................................................10
24.
Operating Instructions (UMLA) .............................................................................................11
25.
Operating Instructions (UMLVA) ...........................................................................................11
Appendix A - Check out and Adjustment...................................................................................12
A.1 Oil Burner Air Adjustment .............................................................................................15
A.2 Burner Electrodes ........................................................................................................15
A.3 Start Up .....................................................................................................................16
A.4 Final Check Out ...........................................................................................................16
Appendix B - Wiring Diagrams..................................................................................................20
Chimney Vent Furnace Wiring Diagram UMLA/UMLVA .............................................................20
Direct Vent Furnace Wiring Diagram UMLA/UMLVA .................................................................21
Appendix C -Sequence of Operation and Troubleshooting.........................................................23
C.1 Troubleshooting ...........................................................................................................24
C.2 Preliminary Steps: .......................................................................................................24
C.3 Check Oil Primary Control .............................................................................................24
Appendix D - Home Owners Reference Table............................................................................28
Parts Listing: Chimney Vent Models UMLA/UMLVA ...................................................................29
Parts Listing: Direct Vent Models UMLA/UMLVA.......................................................................30
Parts Diagram ..........................................................................................................................31
Check our website frequently for updates: www.ecrinternational.com
Information and specifications outlined in this manual in effect at the
time of printing of this manual. Manufacturer reserves the right to
discontinue, change specifications or system design at any time without
notice and without incurring any obligation, whatsoever.
3
PN 240010964 Rev. L [10/01/2021]
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Table of Contents
Troubleshooting
