Download HVAC Pump Handbook by James Rishel, Thomas Durkin, Ben Kincaid PDF

By James Rishel, Thomas Durkin, Ben Kincaid

Layout, set up, and retain HVAC pumps
Filled with case stories and problem-solving sections, this reference deals HVAC engineers and technicians concrete tools for reaching effective operation in using the most recent electronic digital applied sciences. up to date to incorporate the most recent details starting from codes to the digital evolution in HVAC pumping structures

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HVAC Pump Handbook

Layout, set up, and continue HVAC pumps
Filled with case stories and problem-solving sections, this reference deals HVAC engineers and technicians concrete tools for reaching effective operation in using the newest electronic digital applied sciences. up to date to incorporate the most recent info starting from codes to the digital evolution in HVAC pumping platforms

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2; used with permission. 9 Standard 50-Hz Voltages Nominal distribution Motor nameplate voltage system voltage Below 125 hp 125 hp and up Polyphase (see note) 200 200 220 380 415 440 550 3000 110 200 220 — 380 415 440 550 3000 — — — Single-phase (see note) NOTE: Distribution system voltages vary from country to country; therefore, motor nameplate voltage should be selected for the country in which the motor will be operated. , 1999, p. 2; used with permission. have standardized on 50 Hz; there also may be rural areas of the United States still operating on 50-Hz power.

Any use is subject to the Terms of Use as given at the website. qxd 20/4/06 5:13 PM Page 32 Physical Data for HVAC System Design 32 The Basic Tools The most popular power for HVAC applications is 480 V, threephase. Single-phase power is seldom used above 71⁄2 hp. The 208 V service is derived from a Y-connected transformer in the building being served; three-phase motors as high as 60 hp are available for this voltage. The higher voltages of 2400 and 4160 V are used generally on motors of 750 hp and larger.

From Fig. 4 cP at 130°F. 2. From Fig. 95 lb/ft3. 08 lb/ft3. 3. 505 ft. com) Copyright © 2006 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. 2 Moody diagram. , 1990, p. com) Copyright © 2006 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website. 3 Reynolds number chart. , 1990, p. com) Copyright © 2006 The McGraw-Hill Companies. All rights reserved. Any use is subject to the Terms of Use as given at the website.

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