Section 2 — Installation

Liquid-cooled 15, 20 and 25 kW Generators

2.10 ENGINEERED TRANSFER SWITCH

(2-WIRE START GTS MODE)

When required, the pre-packaged standby generator can be installed with an engineered W Type transfer switch which controls utility voltage sensing, weekly exercising and load transferring.

When Position 2 of the eight-position DIP switch, which is located on the generator circuit board (See Figure 3.2), is in the ON position then utility voltage sensing, weekly exercising and load transferring is under the control of the Engineered W Type transfer switch (GTS Mode).

Generator DIP Switch Position 2 ON = 2-Wire Start GTS Mode

•The generator control board will NOT monitor the utility.

•The generator control board will NOT perform a weekly exercise. (The five red LEDs will flash one at a time in GTS mode.)

•The generator control board will NOT activate the transfer output.

The generator control board WILL monitor all engine conditions and shut down on all the faults listed in this document.

For the W Type transfer switch to control utility volt- age sensing, weekly exercising and load transferring, suitable wiring must also be connected from the transfer switch 178 and 183, 2-Wire Start terminals to the corresponding generator 178 and 183 2-Wire

Start terminals. Recommended wire gauge sizes for the 2-Wire Start wiring depend on the length of the wire (see wiring length chart).

 

MAXIMUM WIRE LENGTH

RECOMMENDED WIRE

 

 

 

SIZE

 

 

460 feet (140m)

No. 18 AWG.

 

 

461 to 730 feet (223m)

No. 16 AWG.

 

 

731 to 1,160 feet (354m)

No. 14 AWG.

 

 

1,161 to 1,850 feet (565m)

No. 12 AWG.

 

 

 

 

 

Route the 2-Wire Start control wires through suitable, approved conduit which is separate from the AC power leads. Connection of wire 178 to wire 183 by relay contact closure action (volt free switch contacts) in the transfer switch must result in generator engine cranking and startup (See Figure 2.4).

Do NOT connect battery voltage, utility voltage

!(N1/N2) or load voltage (T1/T2) to either the

178 or the 183 2-Wire start terminals as this will damage the generator control board.

In order for the generator battery charging function to work, it is necessary to provide a 5 amp fused 240Vac utility source connection from the transfer switch main N1 and N2 terminals to the generator control panel N1 and N2 terminals (See Figure 2.4).

Figure 2.4 - Connection Diagram (GTS Mode)

 

 

 

FROM UTILITY

 

 

 

 

 

 

 

 

MAIN LINE

 

 

 

 

 

 

 

 

CIRCUIT

 

 

 

 

 

 

 

 

BREAKER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OR FUSE

 

 

 

 

 

 

 

 

 

 

 

 

FUSE

 

N1 N2

 

 

 

N1

 

 

 

 

T1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N2

 

 

 

 

T2

 

 

 

FUSE

 

 

 

 

 

 

 

 

W-TYPE

 

 

 

 

 

 

TO LOAD

FEEDER CIRCUITS

LOAD

DISTRIBUTION

PANEL

GENERATOR

TRANSFER

SWITCH

178

183

E1 E2

194

23

178

183

E1 E2

N2 N1

12

Page 13 Page 15
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Image 14
Generac 005031-0 (25kW), 005030-0 (15kW) owner manual Connection Diagram GTS Mode
Page 13 Page 15

005030-0 (15kW), 005031-0 (25kW) specifications

Generac has long been recognized as a leader in backup power solutions, and its 005031-0 (25kW) and 005030-0 (15kW) home standby generators exemplify the brand's commitment to reliability and performance. Designed for residential use, these generators provide peace of mind during outages, ensuring that homes remain powered even in the most challenging conditions.

One of the standout features of both models is their advanced Generac G-Force engine, which is engineered for longevity and impressive power output. The G-Force engine is built from the ground up for generator use, refined to handle the unique demands of continuous operation. This results in a highly durable system that requires little to no maintenance, making it a favored choice for homeowners looking for a reliable energy solution.

Another important characteristic is the True Power technology featured in both generators. This technology delivers clean, stable power that is safe for sensitive electronics and appliances. It ensures that devices such as computers and medical equipment operate smoothly without the risk of damage from power fluctuations. Additionally, the Generac 005031-0 and 005030-0 generators are equipped with the Quiet-Test mode, allowing them to run at lower RPMs during routine weekly self-tests. This innovation significantly reduces the noise produced during tests, making it less disruptive for residents.

Furthermore, these generators come with a user-friendly interface and a mobile link app, enabling homeowners to monitor their generator's performance remotely via a smartphone. This feature enhances convenience, allowing users to receive alerts and notifications about their generator's status, maintenance needs, and operation conditions right from their devices.

Both the 25kW and 15kW models are also designed with a robust transfer switch, which seamlessly shifts power from the grid to the generator in case of any outages. This automatic transfer feature ensures that homes maintain power without needing manual intervention, making them ideal for those who want uninterrupted electricity.

In terms of fuel source, both models operate on natural gas or propane, providing flexibility to homeowners regarding fuel availability and preferences. With excellent warranty options and Generac's reputation for quality, both the 005031-0 (25kW) and 005030-0 (15kW) generators stand as dependable choices for safeguarding homes from the unpredictability of power outages.
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