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Alliance SL
Installation, Operating & Service Instructions
For service or repairs to the water heater, call your heating contractor. When seeking information
on the water heater, provide Model Number and Serial Number as shown on Rating Label.
Installation, Operating and Service Instructions for
ALLIANCE SL
TM
Hydrastone-lined Indirect Water Heater
TO THE INSTALLER:
Affix these instructions adjacent to indirect water heater.
TO THE CONSUMER:
Retain these instructions for future reference.
Models:
AL27SL
AL35SL
AL50SL
AL70SL
AL70CSL
Residential & Commercial
Manual Contents Page
1. General Information . . . . . . . . . . . . . . . . . . . . . . . . . .2
2. Specifications & Ratings . . . . . . . . . . . . . . . . . . . . . .3
3. Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . .5
4. Installation Checklist. . . . . . . . . . . . . . . . . . . . . . . . . .8
5. Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6. TPI Control Diagrams . . . . . . . . . . . . . . . . . . . . . . . .11
7. Installation Piping Figures . . . . . . . . . . . . . . . . . . . .13
8. Top Mount Coil Details & Tightening Sequence . . .15
9. Circulator & Burner Control Wiring Diagrams . . . .16
10. Zone Valve Wiring Diagrams . . . . . . . . . . . . . . . . . . .17
11. Switching Relay Wiring Diagrams . . . . . . . . . . . . . .18
12. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
13. How to Obtain Service Assistance . . . . . . . . . . . . . .21
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
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To fully understand the purchaser’s responsibilities for
installing the water heater, please read the warranty.
