Built Up Roofing; Panel Couplings; Vacuum Relief And End Caps - FAFCO ST Installation Manual

BUILT UP ROOFING

A tar and gravel roof requires special care. For further instructions contact your local FAFCO
dealer.

PANEL COUPLINGS

1. Short couplers (3 1/2" rubber couplers) are used to join the panels together and to attach the end
cap and vacuum relief valve.
2. Long couplers (5 1/2" rubber couplers) or Short couplers (3 1/2" rubber couplers) are used
whenever panels are joined to PVC pipe.
3. When coupling panels together, the clamps must be positioned close to the lip of the header.
4. The vacuum relief valve and end cap clamps must also be positioned close to the lip of the header.
5. Tightening clamps:
a) Tighten all clamps as they are installed.
b) When you have completed the solar installation, retighten all clamps with the system on and
water circulating through the collectors.
c) Care must be taken when tightening clamps to ensure they are not installed crooked.
NOTE: It may be necessary to split the bank of panels in order to avoid obstructions on the mounting
surface, or use multiple banks of panels to accommodate specific site requirements. Split packs or
bank packs are available for use in this case.

VACUUM RELIEF AND END CAPS

1. The vacuum relief valve (identified by two holes in cap) should be used to seal the top header on
END panels (place in the highest point of the system). Use 1 vacuum relief per system or per
bank.
2. End caps are used to seal headers on end panels.
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