Intermediate or Back Section Part Number
Installation — assembly
14.Insert draw rods. Make sure all sections are aligned when drawing together, tighten tie rod nuts evenly (35 + 5 ft. lbs. torque).
15.
16.Install circulator(s), assuring proper alignment of pump(s) to both circulator flanges. See Boiler Manual.
17.Pressure test block assembly and water tubing for leaks as described in Boiler Manual. Repair, if found.
18.Replace blower assembly and burner. See “Blower Assembly or Burner Replacement Instructions,” part number
19.Tilt block assembly back onto base rails.
20.
Block temperature limit switch. Jacket left and interior panels. Relief valve and piping.
External air vent piping. High limit control bulb to well. External vent piping.
External combustion air piping, if used. Vent condensate drain hose.
External system gas and water piping to boiler. Control tray (if applicable).
All wiring connectors to control tray Thermostat wiring.
21.Fill boiler as described in Boiler Manual.
22.Turn on electric and gas to boiler. Check boiler normal sequence of operation and follow checkout procedure in Boiler Manual.
23.Check for flue gas leakage around new section using mirror. Leaks will cause fog on mirror. Repair any leaks with silicone sealant and recheck.
24.Replace insulation and jacket right, back, front and top panels.
Weil-McLain
500 Blaine Street
Michigan City, IN
Part number
