Figure 9 -“Set Exercise” Switch ENGINE HEATER Your Generac standby generator comes equipped with a block heater (Figure 10), similar to the block heaters used in automotive applications. Figure 10 -Engine Block Heater Refer to applicable wiring diagram(s) and electrical schematic(s) at back of manual for wiring connections. Customer supplies a 120V 15A Utility fed circuit for the block heater. 14 Generac® Power Systems, Inc. Generac® Power Systems, Inc. 15 MAINTENANCE PERFORMED BY AUTHORIZED SER

Such an explosion can shatter the battery and cause blindness or other injury. Any area that houses a storage battery must be properly ventilated. Do not allow smoking, open flame, sparks or any spark producing tools or equipment near the battery. Battery electrolyte fluid is an extremely caustic sulfuric acid solution that can cause severe burns. Do not permit fluid to contact eyes, skin, clothing, painted surfaces, etc. Wear protective goggles, protective clothing and gloves when handling a ba

Generac® Power Systems, Inc. 19 Section 6 — Scheduled Maintenance Guardian Liquid-cooled 10 kW, 15 kW, 20 kW and 25 kW Generators Maintenance Tasks Level 1 Recommended to be done monthly/ 10 hrs. Task Comp. (Date- Initials) Level 2 Required to be done 3 months/ Break-in 30 hrs. Task Comp. (Date- Initials) Level 3 Required to be done Semiannually/ 50 hrs. Task Comp. (Date- Initials) Level 4 Required to be done Annually/ 100 hrs. Task Comp. (Date- Initials) 1. Disable the unit from operating per t

The NEMA 1 enclosure is intended for indoor use only. The NEMA 3R enclosure is weather proof and can be used indoors or outdoors. Follow these rules: • Install the transfer switch on a firm, sturdy supporting structure. • To prevent switch distortion, level the switch if necessary. This can be done by placing washers between the switch enclosure and the mounting surface. • Never install the switch where water or any corrosive substance might drip onto the enclosure. • Protect the switch at all t

51 52 Generac® Power Systems, Inc. Section 9 — Installation Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Installation Drawing 15 & 20 kW – Drawing No. A7214-C Generac® Power Systems, Inc. 53 Section 9 — Installation Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Installation Drawing 15 & 20 kW – Drawing No. A7214-C Air Intake Air Intake Air Outlet 54 Generac® Power Systems, Inc. Section 9 — Installation Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Installation D

0A2803-D 24 Generac® Power Systems, Inc. Section 7 - Electrical Data Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Electrical Schematic — Control Panel (1-Phase) — Drawing No. 0A2802-B Section 7 - Electrical Data Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators Wiring Diagram — 1.5L Gas Engine — Drawing No. 0A7176-A Generac® Power Systems, Inc. 25 (AC OUTLET) 26 Generac® Power Systems, Inc. Section 7 - Electrical Data Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators El

17 042558 1 KEY SQ 3/8 X 1 STEEL 18 0A5061 1 SPACER-FLEX PLATE 19 0A4989 1 PLATE, FLEX 20 052213 1 SCREW HHC M10-1.25 X 20 G8.8 21 051769 6 WASHER LOCK M12 22 049541 4 SCREW HHC M10-1.5 X 35 G8.8 23 046526 4 WASHER LOCK M10 24 045772 4 NUT HEX M10-1.5 G8 YEL CHR 25** 082130B 1 ASSY MPU SPEED SENSOR 48" 26* 087599 1 PLUG PLASTIC 3/8 CAPLUG #2 27 077043E 1 FLEX CONDUIT 1" BLACK (NOT SHOWN) 28 022131 4 WASHER FLAT 3/8 ZINC 29 072578 1 SPACER ROTOR SHAFT 30 0A7043 5 SCREW HHC M12-1.25 X 25 G8.8 31 0

Once the installation is complete, do nothing that may result in noncompatibility between the generator and connected electrical loads. 1.7.2 ENGINE Make........................................................General Motors Displacement ................................4.3 liters (262 cu. in.) Cylinder Arrangement ................................................V-6 Valve Arrangement..................................Overhead Valves Firing Order ..................................................1-6

• Before installing or servicing this (and related) equipment, make sure that all power voltage supplies are positively turned off at their source. Failure to do so will result in hazardous and possibly fatal electrical shock. • Connecting this unit to an electrical system normally supplied by an electric utility shall be by means of a transfer switch so as to isolate the genrator electric system from the utility electric system while in operation. Failure to isolate the two electric system powe

13 (200A) 45 44 ALT. 44 46 45 48 47 SENSING LEADS & WIRE FD 3 POLE (600V) SIEMENS 44 42 40 33 37 38 36 34 54 53 55 35 36 SENSING 59 57 56 58 52 60 9 ALT. LEADS & WIRE 10 31 32 36 4 35 37 1 37 18 36 2 35 47 58 30 29 12 11 4 37 CONTROL PANEL REF. BOTTOM OF FOR CIRCUIT BREAKER AND NEUTRAL BLOCK RECOMMENDED TERMINAL TIGHTENING TORQUES LUG TO CIRCUIT BREAKER FASTEN COMPRESSION 52 40 40 ITEM NEUTRAL BLOCK CIRCUIT BREAKER LINE SIDE LOAD SIDE CIRCUIT BREAKER # DESCRIPTION 19 FT-LB 30 FT-LB FROM ALTERNAT