Installation, Operating and Service Instructions for
Highlander
Models:
• HLR-3-070NT
• HLR-4-105NT
• HLR-5-140NT
• HLR-6-175NT
• HLR-7-210NT
Manual Contents
1.
7.
Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8. Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
9. Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
10. Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
12. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Appendix B: Instructions for High Altitude
Appendix C: Low Return Water . . . . . . . . . . . . . . . . .
Temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Appendix D: Special Requirements For Side- Wall
Vented Appliances In The Commonwealth of
Massachusetts . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
111953-01 - 1/23
• HLR-3-063PT
• HLR-4-095PT
• HLR-5-126PT
• HLR-6-158PT
• HLR-7-189PT
Installation, Operating & Service Manual
Highlander
Attention Installer - Affix these instructions
Page
adjacent to boiler. Provide model number and
serial number when seeking information and
support.
Attention Building Owner - Retain these
instructions for future reference. Contact a
qualified installer, service agency or gas
supplier for all issues and support.
Read these instructions carefully before
installing. This boiler must only be installed,
serviced, or repaired by a qualified installer,
service agency, or gas supplier. Improper
installation, adjustment, alteration, service or
maintenance can cause severe personal injury,
death, or substantial property damage. For
assistance or additional information, consult
a qualified installer, service agency, or gas
supplier.
. . . . . .
• Water Boiler
• Cast Iron
• Induced Draft
• Gas Fired
!
WARNING
!
WARNING
9700609
1
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