110839-01 - 8/20
AP-U
TM
Models:
• AP-110U-N
• AP-110U-T
• AP-154U-N
• AP-154U-T
•
Natural Draft
•
Oil-Fired
•
Water Boiler
TO THE INSTALLER:
Affix these instructions adjacent to boiler.
TO THE CONSUMER:
Retain these instructions for future reference.
For service or repairs to boiler, call your heating contractor. When seeking information on boiler, provide
Boiler Model Number and Serial Number as shown on Rating Label.
Installation, Operating and Service Instructions for
Manual Contents Page
1. General Information . . . . . . . . . . . . . . . . . . . . . .5
2. Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . .7
3. Water Piping and Trim . . . . . . . . . . . . . . . . . . .10
4. Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
5. Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
6. OIl Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
7. System Start-Up . . . . . . . . . . . . . . . . . . . . . . . .22
8. Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
9. Maintenance & Service Instructions . . . . . . .32
10. Boiler Cleaning . . . . . . . . . . . . . . . . . . . . . . . . .34
11. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .36
12. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . .42
Summary of Contents for AP-U AP-110U-N
Page 41: ...41 110839 01 8 20 AP U Installation Service Manual This page intentionally left blank...
Page 46: ...46 110839 01 8 20 AP U Installation Service Manual SERVICE RECORD SERVICE PERFORMED DATE...
Page 47: ...47 110839 01 8 20 AP U Installation Service Manual SERVICE RECORD SERVICE PERFORMED DATE...
Page 48: ...48 110839 01 8 20 AP U Installation Service Manual...
