Installation Guidelines Siemens Liquid-cooled Generators www.sea.siemens.
This booklet is designed to familiarize you with the installation process for Siemens’ liquid-cooled residential and commercial generators. This booklet does not replace or supersede any information contained in any of the written documents shipped with your equipment. This booklet should only be used in conjunction with the Owner’s Manual, Installation Manual and other technical documents shipped with your equipment.
GENERAL HAZARDS • For safety reasons, it is recommended that the equipment be installed, serviced and repaired by an Authorized Service Dealer or other competent, qualified electrician or installation technician who is familiar with applicable codes, standards and regulations. The operator must also comply with all such codes, standards and regulations. • Installation, operation, servicing and repair of this (and related) equipment must always comply with applicable codes, standards, laws and regulations.
ELECTRICAL HAZARDS • All generators covered by this guide produce dangerous electrical voltages and can cause fatal electrical shock. Utility power delivers extremely high and dangerous voltages to the transfer switch as well as the standby generator. Avoid contact with bare wires, terminals, connections, etc., on the generator as well as the transfer switch, if applicable. Ensure all appropriate covers, guards and barriers are in place before operating the generator.
• Never wear jewelry when working on this equipment. Jewelry can conduct electricity resulting in electric shock, or may get caught in moving components causing injury. FIRE HAZARDS • Keep a fire extinguisher near the generator at all times. Do NOT use any carbon tetra-chloride type extinguisher. Its fumes are toxic, and the liquid can deteriorate wiring insulation. Keep the extinguisher properly charged and be familiar with its use.
Only qualified, competent installation contractors or electricians thoroughly familiar with applicable codes, standards and regulations should install these standby electric power systems. Installers must comply strictly with all codes, standards and regulations pertaining to the installation.
• A52.1, AMERICAN NATIONAL STANDARD FOR CHIMNEYS, FIREPLACES AND VENTING SYSTEMS, available from the American National Standard Institute, 1430 Broadway, New York, NY 10018. The installer must comply with all applicable state and local codes.
VENTED BATTERIES The electrolyte is a diluted sulfuric acid that is harmful to the skin and eyes. It is electrically conductive and corrosive. The following procedures are to be observed: • Wear full eye protection and protective clothing. • If electrolyte contacts the skin, wash it off immediately with water. • If electrolyte contacts the eyes, flush thoroughly and immediately with water and seek medical attention. • Spilled electrolyte is to be washed down with an acid-neutralizing agent.
Before You Begin Contact the local inspector or City Hall to make sure you are aware of all federal, state and local codes that could impact the installation. Secure all required permits before starting the job. Mounting Pad The mounting pad should be located as close as possible to the transfer switch and fuel supply. Make sure you leave adequate room around the generator for service access. Five feet is a good rule of thumb, but local codes vary.
generator placement Use a forklift, boom truck or similar equipment with sufficient capacity to move the generator to the mounting pad area. The operator should be certified and experienced in generator installation. Before placing the generator on the pad, inspect for shipping damage and if necessary, file a claim with the shipper. After removing the bolts holding the generator base frame to the wooden pallet, use the lifting eyes on the base frame to lift the generator onto the pad.
connecting the fuel system Gaseous fuel systems should be installed by a licensed plumber who is experienced in generator installation and is familiar with local codes and regulations. When installing rigid natural gas lines, always use AGA approved black pipe. In most applications, a manual shutoff valve and a primary regulator must be a part of the installation. A section of UL or AGA approved flexible fuel line is required to protect the rigid fuel line connections against vibration from the generator.
Automatic Transfer Switch installation Always inspect the transfer switch for shipping damage. Never mount a switch that shows any evidence of damage. Locate the transfer switch as close as possible to the main service and load distribution panel. Make sure the switch is not located where water or corrosive substances could drip onto the enclosure. It’s important to protect the transfer switch against impact, construction grit and metal fragments at all times.
Total Isolation D ATS A The generator will be backing up all electrical loads within the circuit, so the amperage rating of the transfer switch must be equal to, or greater than, the amperage rating of the normal utility service. Unless a service entrance rated transfer switch is used, a main service disconnect (D) must be located before the transfer switch. The transfer switch is installed between the utility service entrance and the building distribution panel (A).
HTS Transfer Switches – Equivalent to X-type HTS switches are used on generators equipped with the PowerManager® H-100 Controller. Power wiring lugs are clearly marked in the transfer switch. N = Normal Utility Supply E = Generator Connection Panel T = Load Distribution Panel Neutral wires from the utility, the load source and the generator are all connected to the same lug in the switch. The control wires consist of RS485 positive and RS485 negative communication wires run in a shielded cable.
Battery Installation Before connecting the battery, make certain that normal utility voltage at the transfer switch is correct and the system is ready to be put into operation. Check the engine oil, the coolant level, belt tension, and if so equipped, the gearbox oil. Check the battery to make sure it is fully charged before installing. Follow all safety procedures detailed in the Owner’s Manual and observe polarity when connecting the battery. Make sure all terminal connections are tight.
You’ll need to check the control panel to make sure the H-100 controller is properly configured for the HTS transfer switch. Using the control panel is simple once you understand the process. If the main menu screen is not showing on the right screen display, press the MENU button. GENERAL INSTRUCTIONS The main menu display lists the eight sections shown here. There are several adjustments you will need to make during installation, but they are all done in two sections — Status and Exercise/HTS.
NAVIGATION TIPS Use the ARROW keys to move the cursor up, down, left or right. When the cursor is flashing, it can be moved to another line or location on the screen, but no settings can be changed. In order to change a setting, you will always have to press ENTER. When you press enter, the flashing cursor will become a static underline and you can use the Up or Down arrows to change the setting In order to save a setting, you must always press ENTER again.
Press ENTER. When the cursor becomes a static underline, press either the UP OR DOWN arrow key once and the screen should show “HTS #1 Enabled”. Press ENTER to save the setting. To confirm that the controller is communicating properly with the HTS transfer switch, use the ARROW keys to scroll to the bottom of the screen and select the “go back” arrow ( ). f Press ENTER.
Verify that utility voltage and frequency are correct in the transfer switch. In 3phase applications, you will also need to verify phase rotation. If phase rotation is incorrect, switch the A and C connections in the generator connection box and check phase rotation again. Refer to the Installation Manual for correct procedures. With utility power present and the generator OFF, select MANUAL in the transfer switch and open the main breaker.
Place the transfer switch in AUTO and open the main breaker. The generator should start and after the appropriate time delay, the transfer switch should transfer power to the generator without any loads. Close the individual breakers in the distribution panel one at a time until the generator has accepted the entire load. Then close the main utility breaker to restore normal utility power.
SETTING THE TIME & DATE From the main menu, use the DOWN arrow key to move the flashing cursor to “Status” and press ENTER to go to page (1- 2). Use the ARROW keys to move the flashing cursor to the beginning of the time / date line and press ENTER. Use the ARROW keys to set the correct hour. Note: The controller uses a 24 hour clock. (i.e., 11:00 PM is 23:00). Press ENTER to save the hour setting, then use the right arrow key to scroll over and set the minutes.
ENABLING & SCHEDULING THE WEEKLY EXERCISE FUNCTION From the main menu , select “Exercise/HTS” and press ENTER once to go to page 1 of the section. If the top line of the display shows “Y Exercise Enabled”, the setting is correct. If the top line of the display shows “N Exercise Enabled”, you will have to enable the exercise function. Use the UP or DOWN arrow key to move the flashing cursor to the “N” on the first line and press ENTER.
Use either the UP or DOWN arrow key to change the “N” to “Y” and press ENTER to save the setting. When finished, press MENU to return to the main menu display. Finally, make sure that both the generator and the transfer switch are in the AUTO position before leaving the job site. Every installation has its own unique set of circumstances and requirements. This booklet provides guidelines for basic installations only and is not intended to cover all applications.
P.O.
