10/6/10 888-2629-200 B-3
WARNING: Disconnect primary power prior to servicing.
Maxiva ULX COFDM Series
B.2 Plumbing System Installation
B.2.1 Materials needed
• Mapp gas torch set
• Extra Mapp gas tanks
• Welders mask or goggles
• Tubing cutter for 2.5 inch tubing (a hacksaw may be used instead of the tubing cutter)
• Flux (Stay Clean Flux) or equivalent (Harris part number 086 0004 040; one 16 oz
bottle provided with plumbing kit)
• Soft silver solder (96.5% tin; 3.5% silver) such as Aladdin #450 (Harris part number
086 0004 038) is needed. Three 1 lb rolls of 1/16 inch soft silver solder is supplied
with plumbing kit. 1/8 inch silver solder (Harris part number 086-0004-047) is also
available.
• Wire brush and rags
• Water hose
• Thread rod, angle iron or channel and hangers needed to support the plumbing
• Tubing cutter or a hack saw (always de-bur the line (remove any rough points or
flared-in edges at the cut after cutting)
Warning
TEMPERATURE OF THE HEATED LINE IN THE FOLLOWING STEPS IS QUITE HIGH.
PRECAUTIONS MUST BE TAKEN TO AVOID CONTACT WITH EXPOSED SKIN.
B.2.2 Pipe Sizing and Routing
If a typical system layout is not used, the typical plumbing layout should still be
consulted for pipe size information and connection details and techniques at the
amplifier cabinets, RF loads, pump module and outside heat exchanger. A custom
plumbing installation must not unduly restrict flow rates or change the design of the
cooling system. Locate the plumbing so that access to transmitter system components is
not restricted.
NOTE:
Pipes must be sized no smaller than shown on the typical plumbing layout draw-
ing. Their routing should minimize turns and long runs.
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