Getting Started Guide

Conversion Factors
• Refrigeration
— 1 watt = 0.86 kcal/hour
— 1 watt = 3.412 Btu/hour
— 1 watt = 2.843 × 10-4 tons
— 1 ton = 200 Btu/minute
— 1 ton = 12,000 Btu/hour
— 1 ton = 3,517.2 watts
• Metric Equivalents
— 1 centimeter = 0.3937 inch
— 1 meter = 3.28 foot
— 1 meter = 1.09 yards
— 1 in. = 2.54 centimeters
— 1 ft. = 0.305 meters
— 1 CFM = 1.7m
3
/hour
• kVA conversions
Three phase
kVA = V × A × √3 / 1000
• Single phase
kVA = V × A / 1000
Formulas
• kVA = voltage × current (amps)
• Watts = VA × PF
• Btu = Watts × 3.41
• ºC = (32 + 1.8a) ºF
Example of an Installation Schedule
The following schedule lists the sequence of events for a typical system installation:
• Sixty days before installation
— Floor plan design is completed and mailed to HP (if required to be an HP task).
• Thirty days before installation
— Primary power and air-conditioning installation are completed.
— Telephone and data cables are installed.
— Fire protection equipment is installed.
— Major facility changes are completed.
— Special delivery requirements are defined.
— Site inspection checklist is completed. See Table 1-7 and Table 1-8 (page 33) for sample
customer information forms and site inspection checklists.
— Delivery survey is completed. See Figure 1-13 (page 36) and Figure 1-14 (page 37) for
a sample delivery survey.
32 General Site Preparation Guidelines