INSTALLATION OVERVIEW
Overview
These installation recommendations apply to typical installations with standard model gensets. Whenever possible, these recommendations also cover factory designed options or modifications. However, because of the large amount of variables involved with any installation, it is not possible to provide specific recommendations for every possible situation.
This manual does not provide complete application information for selecting a genset or designing the complete installation. This manual is a reference tool only. If there are any questions not answered by this manual, contact your nearest MQ Power dealer or distributor for assistance.
Application and Installation
A standby power system must be carefully planned and correctly installed for proper operation. This involves two essential elements of application and installation.
Application
Application as it applies to genset installations refers to the design of the complete standby power system. Such an effort usually considers power distribution equipment, transfer switches, ventilation equipment, and mounting pads. Consideration is also given to cooling, exhaust, and fuel systems.
Each subsystem must be correctly designed so the complete system will function as intended. Application and design is an engineering function generally done by specifying engineers or other trained specialists. Specifying consulting engineers are responsible for the designing the complete standby system and for selecting the materials and products to be used.
Installation
Installation refers to the actual setup and assembly of the standby power system. The installers, usually licensed contractors, set up and connect the various components of the system as specified in the system design plan. The complexity of the standby system normally requires the special skills of qualified electricians, plumbers, sheet metal workers, construction workers, etc. to complete the various segments of the installation. This is necessary so all components are assembled using standard methods and practices.
Selection and Application
Generator set size and site location should be considered in the preliminary design and budget estimate. The generator size should be selected according to the required load. Choosing a mounting site located inside the building or outside in a shelter or housing will help determine how the genset will be installed and what specific issues need to be addressed.
Sizing
It is important to assemble a reasonably accurate load schedule as soon as possible for budgeting project costs. If all the load equipment information needed for sizing is not available early in the design planning, estimates and assumptions will have to be made during the preliminary calculation in order to account for all needed power . When all the information becomes available, it is important to recalculate the sizing requirements to ensure reliable operation.
Large motor loads, uninterrupted power supplies (UPS), variable frequency drives, and medical diagnostic imaging equipment have a considerable effect on the generator set sizing and should be considered closely. Too, the required power to start a motor can be considerably larger than the power required to maintain the load.
Fuel Requirements
Diesel engine generator sets are recommended for emergency/standby applications. Premium No.
Always consider emissions requirements when designing the fuel and exhaust system. Refer to the Fuel System section for more information.
INDUSTRIAL GENERATOR SETS — APPLICATION & INSTALLATION MANUAL — REV. #4 (09/07/07) — PAGE 15
