EFCO S5500 Outside Glazed User Manual

Page 22

EFCO CORPORATION 6/2012

PART NO. Y550

Series 5500 Outside Glazed Installation Instructions

Section IV: Glazing Preparation

STEP #1 PREPARE FRAME FOR JOINT PLUGS

A. Fill the gasket and adapter raceways with sealant to close off the void at the joint plug

locations. The sealant height should be a minimum of 1” long.

B. Seal all connecting surfaces of the horizontal and vertical mullions with sealant for the

attachment of the mullion joint plugs. Tool sealant into the joints at the thermal strut.

Apply sealant to mullion

surfaces that will contact

joint plugs.

Seal the ends of the front

part of the horizontals to

the vertical mullion.

Fill gasket and adapter

raceways with sealant.