Copper tube size (CTS) CPVC is designed for use in hot-and-cold-water distribution systems. CPVC systems are ideal for all potable water piping requirements in typical residential (single and multi-family), motel/hotel, mobile home, manufactured housing, light commercial, and institutional structures. CPVC systems conforming to ASTM D2846 are rated for continuous service at 100 psi and 180 degrees F and are marked accordingly.

Plenum cable has a metal sheath inside that meets required wiring code for permanent installation. If you were to make a projector a permanent part of a conference room, for example, you would choose cable with plenum. Non-plenum cable is suitable for temporary installations. See similar questions...

When using CPVC with joints under slab, YOU MUST PRESSURE TEST THE SYSTEM BEFORE POURING THE SLAB. Also, it is wise to use 1" foam insulation pipe sleeve at changes in direction, where the pipe comes out of the slab, and at construction joints. The pipe should be evenly supported in smooth bottom trenches. The backfill should be free of rocks and debris. Provide some protection from abuse during the construction phase for the pipe where it emerges from the slab. See similar questions...

Yes, the power packs' low voltage wiring is suitable for use in Plenum ceilings. Install power packs in approved electrical enclosures. Install in accordance with state, local and national electrical codes. Yes! The NEC has stated that Class 1 and Class 2 wires can occupy the same enclosure as long as the rating of the wires equal or exceed the maximum circuit rating. The power pack wiring is rated 600V for the Class one wires and 300V for the Class two wires. See NEC section 300-3(c). See similar questions...

CPVC solvent cement can be used on CPVC and PVC pipe. PVC solvent cement can only be used on PVC pipe. PVC stands for poly vinyl chloride. CPVC stand for Chlorinated poly vinyl chloride. CPVC is harder, stronger pipe. It requires a stronger solvent cement than PVC pipe. CPVC solvent cement is strong enough to bond CPVC pipe and fittings, so it is strong enough to bond PVC pipe and fittings as well. See similar questions...

According to the National Electric Code (NEC) a plenum is a "compartment or chamber to which one or more air ducts are connected and [which] forms part of the air distribution system." In other words, the open space above your ceiling extends above other rooms in the same building or is open to ducts that connect it to other parts of the building. In a plenum ceiling air can circulate through the air ducts to the whole building. See similar questions...

If the frozen section of pipe is accessible, wrap it with a cloth saturated with hot water. Keep the cloth hot by re-dipping in hot water as necessary. Be careful not to burn your hands. A second technique that is quite successful is to blow heated air directly on the area where the freeze occurred using a low wattage heater/blower such as a hair dryer. Obviously, prevention is the best way to address frozen pipe problems. See similar questions...

In areas where there is a likelihood that stresses or impact abuse will occur, a metal nipple is recommended. Such applications as tub fillers, showerheads, and outside sillcocks are examples. However, CPVC stub-outs for closets, lavatories, and sinks are appropriate. See similar questions...

Noveon, Inc., the world leader in CPVC technology, invented CPVC more than 40 years ago. Astral CPVC is a patented rigid thermoplastic chlorinated polyvinyl compound used in the manufacturing of a plumbing system that won't pit, scale or corrode. See similar questions...

At the moment, there are no quotas. This *does not mean*, however, that you can use hundreds of megabytes of disk space. Remember that you are sharing the same disk with many other grad students. Please be courteous. To find out how much space you are using, type "du -s" (no quotes) in your home directory. The number that is returned is in kilobytes. For example: cantor> du -s 8437 means that I am using 8+ megabytes of space. See similar questions...

Each member gets 10M of space in the Gallery to post photos. If you resize your photos right, you will get at least 100 photos. If you require more space, simply make a small donation (please, minimum $5 CDN) to the CPC using the Paypal donation link on the front page. See similar questions...

When you are given an account, you receive 5 Gb of disk space on master2. To check your current quota, use the quota command. This will show you how much space you have left on master2. quota works on all the nodes, except right now there is a bug in the remote quota daemon that report 1/4 the amount of space that is actually there. See similar questions...

The payment made for the use of disk space is not a sales price, but a service fee. The student buys a service, not title to the space on the disk. Think in terms of monthly telephone service, you pay for the right to use the telephone lines when you pay your monthly phone bill. The University owns the medium; it does not purport to own copyrightable work placed on/in the medium. See similar questions...

Yes, but you should watch the cost of fittings and plastic must be supported every two feet. Do not substitute fittings with Radiantec tubing. If you are using an open system, be sure that the materials are rated potable. All Radiantec polyethylene tubing is highly resistant to nearly everything. The reactivity charts show only a slight reaction to fuming nitric acid (above 1700° F) See similar questions...

Keep portable heaters and space heaters at least three feet (one meter) away from anything that can burn. Keep children and pets away from heaters, and never leave heaters on when you leave home or go to bed. See similar questions...