Model: QT027 (Gray) - 27 kW 60Hz
Standby Power Rating: 27 kW
Type: Liquid-Cooled Engine Generator Sets
Meets EPA Emission Regulations and CA/MA emissions Compliant.
Image Description: A Generac QuietSource Series QT027 standby generator, model QT027 (Gray), with a 27 kW standby power rating. It features a liquid-cooled engine, a sound-attenuated enclosure, and is shown with UL Listed and USA Engineered & Built certifications. It meets EPA and CA/MA emissions regulations.
Key components of GENERAC'S success in "IMPROVING POWER BY DESIGN." Total commitment to component testing, reliability testing, environmental testing, destruction and life testing, plus testing to applicable CSA, NEMA, EGSA, and other standards, ensures Generac Power Systems provide superior performance.
This state-of-the-art power maximizing regulation system is standard on all Generac models. It provides optimized FAST RESPONSE to changing load conditions and MAXIMUM MOTOR STARTING CAPABILITY by electronically torque-matching the surge loads to the engine. Features an unequalled ±1% voltage regulation.
Generac's extensive dealer network provides parts and service know-how for the entire unit, from the engine to the smallest electronic component.
Long life and reliability are synonymous with GENERAC POWER SYSTEMS. The GENERAC product line includes its own transfer systems and controls for total system compatibility.
| TYPE | Synchronous |
|---|---|
| ROTOR INSULATION | Class H |
| STATOR INSULATION | Class H |
| TELEPHONE INTERFERENCE FACTOR (TIF) | <50 |
| ALTERNATOR OUTPUT LEADS 3 PHASE | 4 wire |
| BEARINGS | Sealed Ball |
| COUPLING | Flexible Disc |
| LOAD CAPACITY (STANDBY RATING) | 27 kW |
| EXCITATION SYSTEM | Direct |
| TYPE | Electronic |
|---|---|
| SENSING | Single Phase |
| REGULATION | ± 1% |
| TYPE | Aluminum weather protective enclosure | Ensures protection against mother nature. Electrostatically applied textured epoxy paint for added durability. |
|---|---|---|
| Enclosed critical grade muffler | Quiet, critical grade muffler is mounted inside the unit to prevent injuries. | |
| Small, compact, attractive | Makes for an easy, eye appealing installation. | |
| SAE | Sound attenuated enclosure ensures quiet operation. |
| MAKE | Generac |
|---|---|
| MODEL | QT027 |
| CYLINDERS | 4 |
| DISPLACEMENT | 2.4 Liter |
| BORE | 3.41 |
| STROKE | 3.94 |
| COMPRESSION RATIO | 9.5:1 |
| INTAKE AIR SYSTEM | Naturally Aspirated |
| LIFTER TYPE | Hydraulic |
| TYPE | Electronic |
|---|---|
| FREQUENCY REGULATION | Isochronous |
| STEADY STATE REGULATION | ± 0.25% |
| OIL PUMP | Gear |
|---|---|
| OIL FILTER | Full flow spin-on cartridge |
| CRANKCASE CAPACITY | 4 Quarts |
| TYPE | Closed |
|---|---|
| WATER PUMP | Belt driven |
| FAN SPEED | 1980 |
| FAN DIAMETER | 18.1 inches |
| FAN MODE | Pusher |
| FUEL TYPE | Natural gas, propane vapor |
|---|---|
| CARBURETOR | Down Draft |
| SECONDARY FUEL REGULATOR | Standard |
| FUEL SHUT OFF SOLENOID | Standard |
| OPERATING FUEL PRESSURE | 5" - 14" H₂O |
| BATTERY CHARGE ALTERNATOR | 12V 30 Amp |
|---|---|
| STATIC BATTERY CHARGER | 2 Amp |
| RECOMMENDED BATTERY | Group 26, 525CCA |
| SYSTEM VOLTAGE | 12 Volts |
Rating definitions: Standby: Applicable for supplying emergency power for the duration of the utility power outage. No overload capability is available for this rating. (All ratings in accordance with BS5514, ISO3046 and DIN6271). (All ratings in accordance with BS5514, ISO3046, ISO8528, SAE J1349 and DIN6271).
KW RATING (LP/NG): 27/25
ENGINE SIZE: 2.4 Liter Inline 4
| kW LPG | AMP | kW Nat. Gas | AMP | CB Size (Both) | |
|---|---|---|---|---|---|
| 120/240V, 1-phase, 1.0 pf | 27 | 112 | 25 | 104 | 125 |
| 120/208V, 3-phase, 0.8 pf | 27 | 94 | 25 | 87 | 100 |
| 120/240V, 3-phase, 0.8 pf | 27 | 81 | 25 | 75 | 90 |
| Natural Gas (ft³/hr.) | Propane (gal/hr.) | Propane (cu ft/hr) | |
|---|---|---|---|
| Exercise cycle | 42 | 0.44 | 16 |
| 25% of rated load | 108 | 1.2 | 44 |
| 50% of rated load | 197 | 2.1 | 78 |
| 75% of rated load | 287 | 3.1 | 114 |
| 100% of rated load* | 359 | 3.9 | 143 |
For Btu content, multiply ft³/hr x 2520 (LP) or ft³/hr x 1000 (NG)
| Air flow (inlet air including alternator and combustion air) | 2,400 ft³/min. |
|---|---|
| System coolant capacity | 3 US gal. |
| Heat rejection to coolant | 105,000 BTU/hr. |
| Max. operating air temp. on radiator | 60 °C (150 °F) |
| Max. ambient temperature | 50 °C (140 °F) |
| Flow at rated power 60 Hz | 68 cfm |
|---|
| Exercising at 7 meters | 61 |
|---|---|
| Normal operation at 7 meters | 70 |
| Exhaust flow at rated output 60 Hz | 180 cfm |
|---|---|
| Exhaust temp. at muffler outlet | 900 °F |
| Rated synchronous RPM | 1800 (60 Hz) |
|---|
| 25 | 77 | ||
|---|---|---|---|
| Temperature Deration | 3% for every 10 °C above - °C | ||
| 1.65% for every 10 °F above - °F | |||
| Altitude Deration | 1% for every 100 m above - m | 183 | |
| 3% for every 1000 ft. above - ft. | 600 |
Refer to "Emissions Data Sheets" for maximum fuel flow for EPA and SCAQMD permitting purposes.
RATING: All three phases units are rated at 0.8 power factor. All single phase units are rated at 1.0 power factor. STANDBY RATING: Standby ratings apply to installations served by a reliable utility source. The standby rating is applicable to varying loads for the duration of a power outage. There is no overload capability for this rating. Ratings are in accordance with ISO-3046-1. Design and specifications are subject to change without notice. KW rating is based on LPG Fuel and may derate with natural gas.
Diagram Description: An electrical interconnection diagram showing the flow from the Utility Supply (via Service Disconnect) to the RTS Transfer Switch, then to the QT Series Engine Generator Connection Panel, and finally to the Customer Load (Distribution Panel). It illustrates connections for neutral wires, ground, and power leads, and highlights the Nexus™ control features.
| Feature | Description |
|---|---|
| 2-Line Plain Text LCD Display | Simple user interface for ease of operation |
| Mode Switch | -Auto -Off -Manual/Test (start) |
| Programmable start delay between 10-30 seconds | Automatic Start on Utility failure. 7 day exerciser |
| Engine Start Sequence | Stops unit. Power is removed. Control and charger still operate. |
| Engine Warm-up | Start with starter control, unit stays on. If utility fails, transfer to load takes place. |
| Engine Cool-Down | Standard |
| Starter Lock-out | Cyclic cranking: 16 sec. on, 7 rest (90 sec. maximum duration) |
| Smart Battery Charger | 5 seconds |
| Automatic Voltage Regulation with Over and Under Voltage Protection | 1 minute |
| Automatic Low Oil Pressure Shutdown | Starter cannot re-engage until 5 sec. after engine has stopped. |
| Overspeed Shutdown | Standard |
| High Temperature Shutdown | Standard |
| Overcrank Protection | Standard |
| Safety Fused | Standard |
| Failure to Transfer Protection | Standard |
| Low Battery Protection | Standard |
| 50 Event Run Log | Standard |
| Future Set Capable Exerciser | Standard |
| Incorrect Wiring Protection | Standard |
| Internal Fault Protection | Standard |
| Common External Fault Capability | Standard |
| Governor Failure Protection | Standard |
*Single and three phase connections may vary, refer to the owner's manual for specific connection information.
Diagram Description: A top, front, rear, and side view of the Generac QT027 generator, detailing its physical dimensions, mounting hole locations, recommended concrete pad size (1041" W x 1892" L), access points for maintenance items (oil fill, dipstick, filter, radiator drain, air cleaner, spark plugs, mufflers, fan belt, battery), lifting provisions, and connection points for fuel lines and electrical leads. It also includes a service item accessibility chart.
Notes:
Service Item Accessibility Chart:
| SERVICE ITEM | ACCESS |
|---|---|
| OIL FILL CAP | THRU RIGHT DOOR |
| OIL DIP STICK | THRU RIGHT DOOR |
| OIL FILTER | THRU RIGHT DOOR |
| OIL DRAIN HOSE | THRU LEFT DOOR |
| RADIATOR DRAIN HOSE | THRU LEFT DOOR |
| AIR CLEANER ELEMENT | THRU LEFT DOOR |
| SPARK PLUGS | THRU LEFT DOOR |
| MUFFLERS | SEE NOTE 6 |
| FAN BELT | THRU RIGHT DOOR |
| BATTERY | THRU LEFT DOOR |
Weight Data:
| MATERIAL (GENSET ONLY) | ENGINE/KW | ENCLOSURE | WEIGHT KG [LBS] | (SHIPPING CARTON/SKID) WEIGHT KG [LBS] | (GENSET, SKID, & CARTON) WEIGHT KG [LBS] |
|---|---|---|---|---|---|
| 2.4L/27KW ALUMINUM | 405 [891] | 30 [66] | 434 [957] |
| Model # | Product | Description |
|---|---|---|
| 5630 | Cold Weather Kit | If the temperature regularly falls below 32° F, install a cold weather kit to maintain optimal battery temperature. Kit consists of battery warmer with thermostat built into the wrap. |
| 5621 | Auxiliary Transfer Switch Contact Kit | The auxiliary transfer switch contact kit allows the transfer switch to lock out a single large electrical load you may not need. |
| 5616 | Extreme Cold Weather Kit | Recommended where the temperature regularly falls below 32° F for extended periods of time. For liquid cooled units only. |
| 5651 | Base Plug Kit | Add base plugs to the base of the generator to keep out debris. |
| 5704 | Paint Kit | Medium Grey Kit |
| 5656 | Scheduled Maintenance Kit | The Liquid-Cooled Scheduled Maintenance Kits offer all the hardware necessary to perform a complete maintenance on Generac liquidcooled generators. |
| 5928 | Nexus Wireless Remote | Completely wireless and battery powered, Generac's Nexus wireless remote monitor provides you with instant status information without ever leaving the house. |
| 5951 | Advanced Nexus Wireless Remote | Remotely control generator functions with the advanced model's LCD display. In addition to remote testing of the generator, set the excercise cycle and maintenance interval reminders. |
| 5937 | DLM Load Control Module (50 Amps) | DLM Modules are used in conjunction with the Nexus Smart Switch to increase its load management capabilities. It gives the Nexus Smart Switch additional load management flexibility not found in any other transfer switch. |