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Selected Circuit Load Calculator - Honeywell 6442 Manual To Operations

Automatic home standby generators

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Selected Circuit load Calculator

Contractor__________________________________ Email ____________________________
Phone_____________________________________ Fax ______________________________
Job Name ___________________________________________________________________
Date___________________________ Location _____________________________________
VOLTAGE
120/240 1
TYPE
Natural Gas
ELEC. SERVICE
100 Amp
600 Amp
Before installation contact local jurisdiction to confirm all requirements are met. Jurisdictions may vary.
Contacting local authorities prior to installation is recommended.
LOADS: Look for heavy building loads such as refrigeration, air conditioning, pumps or UPS systems.
Use the following for sizing and determining generator kW.
TABLE 8
Device
1
Starting kW for HP < 7.5 starting kW = HP x 3
Starting kW for HP > 7.5 starting kW = HP x 2
Starting kW for loading with no listed HP, calculate HP based on running amps in the chart on the right
TABLE 9
Motor Load Table (refer to Table 1)
Device
Recommended Generator Size ________ Refer to Generator Sizing Instructions on other side of this sheet.
INSTALL NOTES:
1. Suggested concrete pad minimum thickness of 4" with 6" overhang on all sides. Composite pad included with air-cooled products.
2. Consult manual for installation recommendations.
3. Consult local authority having jurisdiction for local requirements.
© Generac Power Systems, Inc. All rights reserved. Specifications subject to change without notice. The Honeywell Trademark is used under license from Honeywell International Inc.
ø
ø
120/208 3
120/240 3
LP Vapor (LPV)
150 Amp
200 Amp
Other________
Motor Load Table (refer to Table 1)
HP
RA
LRA
kW Running (= HP) Starting
kW
Amps
ø
ø
277/480 3
300 Amp
400 Amp
1
UPS Information
2 x kVA rating for a filtered system
3 – 5 x kVA rating for an unfiltered system
kW
It is recommended you refer to the Honeywell UPS Generator Compatibility sheet
(Pg 10) and contact the manufacturer of the UPS system to assist in your installation.
Transfer Switch Availability
RTSG
– 100, 150, 200, 300 and 400 Amp service rated
RTSZ
– 100–800 3ø and 600-800 1ø Amp
RTSV
– 100, 150, 200, 300 and 400 Amp
Applications
The HT Series does not meet the necessary
requirements for the following applications:
NEC 695
Fire Pumps
NEC 700
Emergency Systems
NFPA 20
Fire Pumps
NFPA 99
Healthcare
NFPA 110
Emergency Systems
Reference Codes
Related Codes and Standards:
NEC 225
Branch Circuits and Feeders
NEC 240
Overcurrent Protection
NEC 250
Grounding
NEC 445
Generators
NEC 700
Emergency Systems
NEC 701
Legally Required Standby
NEC 702
Optional Standby
NFPA 37
Installation & Use of
Stationary Engines
NFPA 54
National Fuel Gas Code
NFPA 58
LP Gas Code
To Calculate kW
120 V 1ø
Amps x 120/1000 = kW
240 V 1ø
Amps x 240/1000 = kW
208 V 3ø
(Amps x 208 x 1.732 x PF) /1000
= kW
240 V 3ø
(Amps x 240 x 1.732 x PF) /1000
= kW
480 V 3ø
(Amps x 480 x 1.732 x PF) /1000
= kW
PF is application power factor (worst case 1.0)
Typical application power factor is 0.95.
15

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