Section 2 — Installation

GTS “HS” Type Transfer Switch

2.1INTRODUCTION TO INSTALLATION

This equipment has been wired and tested at the fac- tory. Installing the switch includes the following pro- cedures:

•Mounting the enclosure.

•Connecting power source and load leads.

•Connecting the generator start circuit.

•Connecting any auxiliary contact (if needed)

•Testing functions.

2.2UNPACKING

Carefully unpack the transfer switch. Inspect closely for any damage that might have occurred during ship- ment. The purchaser must file with the carrier any claims for loss or damage incurred while in transit.

Check that all packing material is completely removed from the switch prior to installation.

2.3MOUNTING

Mounting dimensions for the transfer switch enclo- sure are in this manual. Enclosures are typically wall-mounted. See “Installation Diagram”, Section 5.

‹2.4.1 2-POLE MECHANISM

These switches (Figure 2.1) are used with a single- phase system, when the single-phase NEUTRAL line is to be connected to a Neutral Lug and is not to be switched.

Figure 2.1 — Typical 2-Pole Transfer Mechanism

(200 Amp Shown)

UTILITY LUGS

UTILITY

CLOSING

COIL

GENERATOR

LUGS (E1 & E2)

GENERATOR

CLOSING

COIL

LOAD LUGS (T1 & T2)

Handle transfer switches carefully when

!installing. Do not drop the switch. Protect the switch against impact at all times, and against construction grit and metal chips. Never install a transfer switch that has been dam- aged.

Install the transfer switch as close as possible to the electrical loads that are to be connected to it. Mount the switch vertically to a rigid supporting structure. To prevent switch distortion, level all mounting points. If necessary, use washers behind mounting holes to level the unit.

2.4CONNECTING POWER SOURCE AND LOAD LINES

DANGER

Make sure to turn OFF both the UTILITY (NORMAL) and EMERGENCY (STANDBY) power supplies before trying to connect power source and load lines to the transfer switch. Supply voltages are extremely high and dangerous. Contact with such high volt- age power supply lines will result in an extremely hazardous, possibly lethal, electri- cal shock.

Wiring diagrams and electrical schematics are pro- vided in this manual. Power source and load connec- tions are made at a transfer mechanism, inside the switch enclosure.

Solderless, screw-type terminal lugs are standard.

 

Switch

Wire

Conductor Tightening

 

 

Rating

Range

Torque

 

 

100A

#14-1/0 AWG

50 in-lbs.

 

 

200A

#6-250 MCM

275 in-lbs.

 

Conductor sizes must be adequate to handle the max- imum current to which they will be subjected to, based on the 75°C column of tables, charts, etc. used to size conductors. The installation must comply fully with all applicable codes, standards and regulations.

Before connecting wiring cables to terminals, remove any surface oxides from the cable ends with a wire brush. All power cables should enter the switch next to transfer mechanism terminals. If ALUMINUM con- ductors are used, apply corrosion inhibitor to con- ductors. Tighten terminal lugs to the torque values as noted on the decal located on the inside of the door. After tightening terminal lugs, carefully wipe away any excess corrosion inhibitor.

All power cables should enter the switch next to the transfer mechanism terminals.

Use a torque wrench to tighten the conduc-

!tors, being sure not to over tighten, or dam- age to the switch base could occur. If not tightened enough, a loose connection would result, causing excess heat which could dam- age the switch base.

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Generac Power Systems 004678-2 Introduction to Installation, Unpacking, Mounting, Connecting Power Source and Load Lines
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004678-2, 004635-3, 004678-2 specifications

Generac Power Systems is a prominent name in the field of backup power generation, renowned for their wide array of innovative products designed to meet diverse energy needs. Among their extensive catalog, the Generac models 004635-3 and 004678-2 stand out, showcasing cutting-edge features and technologies that provide reliable power solutions for both residential and commercial applications.

The Generac 004635-3 is a robust standby generator that operates on a reliable liquid propane or natural gas fuel source. One of its main features is the True Power Technology, which ensures smooth operation of sensitive electronics such as computers and televisions, minimizing the risk of damage during power outages. With its powerful engine and efficient design, this generator can produce substantial wattage to power essential appliances and systems, providing peace of mind during electrical failures.

A notable characteristic of the 004635-3 is its automatic transfer switch that seamlessly detects utility outages and activates the generator within seconds. This quick response time is crucial, as it guarantees that your home remains functional during unexpected power interruptions. Additionally, the model is equipped with a mobile link remote monitoring feature that allows users to track performance and status through an app, ensuring they are always informed about their backup power system.

On the other hand, the Generac 004678-2 also carries the hallmark of high-performance and reliability, making it an excellent choice for larger applications. This model features an innovative, noise-reducing enclosure that not only minimizes sound output but also enhances durability against harsh weather conditions. The generator also boasts a user-friendly control panel with digital display technology, providing a straightforward interface for monitoring and managing the system.

A standout technology in the 004678-2 is the G-Force engine, designed for optimal performance and longevity. This engine emphasizes low-maintenance operation, reducing the frequency of service intervals and ensuring the generator runs efficiently for years. The model's large fuel tank further extends its run time, ensuring users have sufficient power during extended outages.

In summary, both the Generac 004635-3 and 004678-2 models exemplify the company’s commitment to quality and innovation. These generators integrate advanced technology, robust design, and user-friendly features, making them ideal solutions for anyone seeking reliable backup power. With Generac, customers can take comfort in knowing they have a dependable power source at their fingertips in any emergency situation.
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