Installation manual

Natural Gas Generator Set Installation Manual-GF Series

Doc. 17855, Rel. 03/2014

4-3

Figure 4-1

Switched B+: (Fused at 5 amps.) Same as Relay

Connection description.

B+: (Fused at 10 amps.) Same as Relay Connection

description.

4.4 Control Relays (Optional)

CAUTION

Damage to the base board can occur if the

voltage suppressors are not installed across

relay coils (A1/A2) of control relays K11, K12 and

K13 before connecting genset battery cables.

The three optional control relays are rail mounted

inside the control panel housing. Each relay is a 4-

pole relay with 2 poles normally open and two poles

normally closed.

These relays are used to control auxiliary equipment,

such as fans, pumps and motorized air dampers.

Energizing of the relays is user definable.

The contacts are rated at 10 amps at 600 VAC.

Refer to Customer Connections diagram in Section 7

- Wiring Diagrams.

4.5 AC Electrical Connections

This section provides the procedure that is used to

connect the AC electrical system of the genset.

Before making any AC electrical connections, make

certain the generator set cannot be accidentally

started. Place the control panel run switch in the OFF

position. Turn off or remove AC power from the

battery charger, depress the E-Stop, and then

remove the negative (-) battery cable from the set

starting battery.

WARNING

Ignition of explosive battery gases can cause

severe personal injury or death. Arcing at battery

terminals, light switch or other equipment, flame,

pilot lights and sparks can ignite battery gas. Do

not smoke, or switch trouble light ON or OFF near

battery. Discharge static electricity from body

before touching batteries by first touching a

grounded metal surface.

Ventilate battery area before working on or near

battery—Wear goggles—E-Stop gen set and dis-

connect charger before disconnecting battery

NG-00052