Weil-McLain 380 - Page 2

Weil-McLain 80 Boiler For Gas, Light Oil, Gas/Light Oil Fired Burners
2 Part No. 550-141-935/0215
(AZARD$ElNITIONS
The following defined terms are used throughout this manual to bring attention to the presence of hazards of
VARIOUSRISKLEVELSORTOIMPORTANTINFORMATIONCONCERNINGTHELIFEOFTHEPRODUCT
Indicates presence of hazards that WILLCAUSESEVERE personal injury, death or substantial property
damage if ignored.
Indicates presence of hazards that CANCAUSESEVERE personal injury, death or substantial property
damage if ignored.
Indicates presence of hazards that WILLOR CAN CAUSE MINOR personal injury, death or substantial
property damage if ignored.
Indicates special instructions on installation, operation or maintenance that are important but not
related to personal injury.
Read all instructions before installing.
Failure to follow all instructions in proper
order can cause severe personal injury,
death or substantial property damage.
Do not use petroleum-based cleaning
or sealing components in boiler system.
Severe damage to system components
can result, causing substantial property
damage.
Contents
1. Before installing boiler ..................................................................3
2. Set boiler in place ..........................................................................5
3. Assemble block..............................................................................6
4. Perform hydrostatic pressure test .................................................8
5. Complete block assembly ..............................................................9
  .....................................................................10
7. Connect water boiler piping ........................................................14
8. Connect steam boiler piping ........................................................16
9. Install jacket ................................................................................20
10. Pipe tankless heaters ...................................................................27
11. Install water boiler controls .........................................................28
12. Install steam boiler controls ........................................................29
13. Connect breeching and venting system.......................................31
14. Install burner ...............................................................................32
15. Wiring and fuel piping ..................................................................32
  ................................................................32
17. Dimensions and ratings ...............................................................34
18. Parts ............................................................................................36
  ..........................38
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