Page 16 - HVAC Pump Handbook

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Source: HVAC Pump Handbook

Chapter
2

Physical Data for

HVAC System Design

2.1 Introduction
There can be confusion about the standards that exist for the design
and operation of HVAC systems and equipment such as pumps. It is
important for the designer to understand what these standards are,
both for the HVAC equipment and for the water systems themselves.
These standards can be established by technical societies, governmen-
tal agencies, trade associations, and as codes for various governing
bodies. The designer must be aware of the standards and codes that
govern each application.
Included in this chapter are standard operating conditions for
HVAC equipment; also, this chapter has brought together much of the
technical data on air, water, and electricity necessary for designing
and operating these water systems. The only information on water not
included in this chapter is pipe friction, as described in Chap. 3, and
the specific heat of water at higher temperatures, as described in
Chap. 21 for medium- and high-temperature water systems. Also in-
cluded in this chapter are standard operating conditions for HVAC
equipment.
It is hoped that most of the technical information needed by the
HVAC system designer for pump application is included in this book.
The cross-sectional area, in square feet, and the volume, in gallons, of
commercial steel pipe and circular tanks have been included on a linear-
foot basis. This is valuable information for the designer in calculating
the liquid volume of HVAC water systems and energy storage tanks.

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