Table of Contents
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Table of Contents
Related Manuals for Siemens Standby Generators
Summary of Contents for Siemens Standby Generators
- Page 1 Sizing Guide standby GENERATORS...
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Page 2: General Information
80% of its full capacity and will provide a margin of flexibility if the load increases in the future. For safety reasons, Siemens recommends that the backup power system be installed, serviced and repaired by a Generac Authorized Service Dealer or a competent, qualified electrician or installation technician who is familiar with applicable codes, standards and regulations. - Page 3 Generator Sizing Guide Table 1 – Motor Load Reference AC and Heat Pumps Running Load Running Amps at Description 1 Ton (12,000 BTU) 2 Ton (24,000 BTU) 3 Ton (36,000 BTU) 4 Ton (48,000 BTU) 5 Ton (60,000 BTU) 7.5 Ton (85,000 BTU) 10 Ton (120,000 BTU) 5 Hp (x2) 10 Ton (120,000 BTU)
- Page 4 Generator Sizing Guide Table 2 – Non-Motor Load Reference General Residential Description Electric heat per 1000 ft. Heat pump elements per 1000 ft. Dryer Hot tub Range oven Hot water Stove top per burner General receptacles per 1000 ft. Lighting per 1000 ft. Blow dryer Dishwasher Microwave...
- Page 5 Generator Sizing Guide Table 3 – Surge Capability Siemens Liquid Cooled Generators Operating at <3600 RPM Rated Output (Running Amps) Size (kW) 240V 1ø 208V 3ø Siemens Generators Operating at 3600 RPM Rated Output (Running Amps) Size (kW) 240V 1ø...
- Page 6 Generator Sizing Guide Table 4 – Fuel Pipe Sizing Natural Gas Pipe Size (in.) 0.75" 1" LP vapor (LPV) Pipe Size (in.) 0.75" 1" Note: – Table values are maximum pipe run in feet. – Pipe sizing is based on .5" H 2 O pressure drop. –...
- Page 7 Generator Sizing Guide Table 5 – LP Vapor (LPV) Tank Sizing Vapor Withdrawal Tank Capacity Tank Capacity Length Total (Gal.) Useable (Gal.) (Inches) 1000 Note: Tank BTU capacity and generator run times based upon maintaining a minimum tank fuel level of 20%. LP Vapor (LPV) Withdrawal Fuel Consumption Load (kW) BTU / Hr...
- Page 8 Generator Sizing Guide UPS Generator Compatibility Passive (also referenced as standby or off-line) and Line-Interactive These technologies are most common for personal workstations and point of sale applications. They are typically single phase equipment with size ranges of 350 VA – 2000 VA for passive and 500 VA to 5000 VA for line-interactive.
- Page 9 SR6SI switch only works with R100 controller. XT 6XR – 100, 150, 200, 300, 400, 600, 800 Amp HTS switch only works with H100 controller. Avail. in NEMA 1, NEMA 3R and NEMA 12. Refer to Siemens product catalog for the appropriate transfer switch.
- Page 10 Generator Sizing Guide Onsite Estimating Sheet Generator Sizing Instructions: There is not a single correct sizing solution. The instructions below identify multiple methods that, when mixed with good judgment, should result in a moderately sized generator. Remember to consider load growth, seasonality, and effects of starting motors.
- Page 11 SR6SI switch only works with R100 controller. XT 6XR – 100, 150, 200, 300, 400, 600, 800 Amp HTS switch only works with H100 controller. Avail. in NEMA 1, NEMA 3R and NEMA 12. Refer to Siemens product catalog for the appropriate transfer switch.
- Page 12 Generator Sizing Guide Onsite Estimating Sheet Generator Sizing Instructions: There is not a single correct sizing solution. The instructions below identify multiple methods that, when mixed with good judgment, should result in a moderately sized generator. Remember to consider load growth, seasonality, and effects of starting motors.
- Page 13 1.5 x kVA rating for a filtered system 3 – 5 x kVA rating for an unfiltered system Siemens recommends you refer to the Siemens UPS Generator Compatibility sheet and notify the manufacturer of the UPS system to assist in your installation.
- Page 14 Generator Sizing Guide Onsite Estimating Sheet Generator Sizing Instructions: There is not a single correct sizing solution. The instructions below identify multiple methods that, when mixed with good judgment, should result in a moderately sized generator. Remember to consider load growth, seasonality, and effects of starting motors.
- Page 15 Notes...
- Page 16 ©2006 Siemens Energy & Automation, Inc. All Rights Reserved Siemens is a registered trademark of Siemens AG. Product names mentioned may be trademarks or registered trademarks of their respective companies. Specifications are subject to change without notice. RPSA-GENSZ-0506 New 3M0506B&A Printed in USA...