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120-375
EX400-EX500 RACKING ASSEMBLY INSTRUCTIONS
EX Rack MR Kits
MR-130
Rack Leg
MR-141
HEADER BRACKETS - INLINE 4"
MR-181
FLANGE CAPS - 4"
MR-400
EX400/500 BOILER PLUMBING KIT 4" HDR
MR-430
MOUNTING BRACKET & BRACE
MR-410
EX HEADERS - 4", 2 POSN
MR-411
EX HEADERS - 4", 3 POSN

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Summary of Contents for IBC EX400

  • Page 1 MR-130 Rack Leg MR-141 HEADER BRACKETS - INLINE 4” MR-181 FLANGE CAPS - 4” MR-400 EX400/500 BOILER PLUMBING KIT 4” HDR MR-430 MOUNTING BRACKET & BRACE MR-410 EX HEADERS - 4”, 2 POSN MR-411 EX HEADERS - 4”, 3 POSN...
  • Page 2 Attach the upper mounting bracket to the rack legs as shown using ¼”-20 x ½” cap screws and ¼” lock washers. Ensure that the bracket is oriented so that the flange is at the top. Additional legs and brackets can be added to receive the required number of boilers. Flange 120-375 Page 2 of 8...
  • Page 3 Attach the cross braces to the rack legs as shown using ¼”-20 x ½” cap screws & ¼” lock washers. 120-375 Page 3 of 8...
  • Page 4 Secure the frame to the floor using anchor bolts (contractor supplied). 120-375 Page 4 of 8...
  • Page 5 Attach the header brackets to the rack legs using 3/8”-16 x 2-½” cap screws & 3/8”-16 nuts. Insert the bolts thru the top two holes as shown. The brackets must be attached to the correct side of the leg, as shown, to allow clearance for the header pipe flange. 120-375 Page 5 of 8...
  • Page 6 Install the U-bolt boots onto the headers. Place the header on the header brackets, lining up the face of the header flange with the center of the leg. Screw on the U-bolt nuts until snuge (finger tight). Do not Install the bottom U-clamps. tighten completely until after all the boiler and external system connections have been completed.
  • Page 7 Install the upper header in the same way. Header connections are parrallel to the floor. Header connections are 45 to the floor. 120-375 Page 7 of 8...
  • Page 8 Dimension drawings for EX400-EX500 boilers. 120-375 Page 8 of 8...

This manual is also suitable for:

Ex500