Generac 005031-0 (25kW) Coolant Recommendations, Engine OIL Recommendations, Before Installation

Section 1 — General Information

Liquid-cooled 15, 20 and 25 kW Generators

2.Remove the carburetor fuel hose from the outlet port (Port 1) of the demand regulator (Figure 1.8).

3.Remove the brass hose fitting from the outlet port (Port 1) of the demand regulator.

4.Remove pipe plug from Port 2.

5.Install brass hose fitting into Port 2.

6.Install pipe plug into Port 1.

7.Connect carburetor gas hose to brass fitting.

8.Tighten all clamps and plugs.

9.Make sure fuel supply is of the proper pressure and type for configuration (not to exceed 14 inch- es water column).

10.Move DIP switch position 4 on the control board to the off position (LP vapor, see Figure 3.2 and Section 3.7).

11.Reverse the procedure to convert back to natural gas.

Figure 1.8 — Reconfigure the Fuel System

	Port 1		Port 2
	FUEL HOSE	FUEL HOSE
PLUG	BRASS HOSE	BRASS HOSE	PLUG
	FITTING	FITTING
	OUT	OUT
	PORT 1	PORT 2

FUEL INLET

NG FUEL SYSTEM LP FUEL SYSTEM

NOTE:

Synthetic oil is highly recommended when the generator will be operating in ambient tempera- tures which regularly exceed 90° F and/or fall below 30° F.

Any attempt to crank or start the engine before

!it has been properly serviced with the recom- mended oil may result in an engine failure.

1.15 COOLANT RECOMMENDATIONS

Use a mixture of half low silicate ethylene glycol base anti-freeze and half deionized water. Cooling system capacity is about 8 U.S. quarts (7.6 liters). Use only deionized water and only low silicate anti-freeze. If desired, add a high quality rust inhibitor to the rec- ommended coolant mixture. When adding coolant, always add the recommended 50-50 mixture.

Do not use any chromate base rust inhibitor

!with ethylene glycol base anti-freeze or chromi- umhydroxide (“green slime”) forms and will cause overheating. Engines that have been operated with a chromate base rust inhibitor must be chemically cleaned before adding eth- ylene glycol base anti-freeze. Using any high silicate anti-freeze boosters or additives will also cause overheating. DO NOT use any solu- ble oil inhibitor for this equipment.

NOTE:

Port 1 is for NG only and Port 2 is for LP vapor only. No provision for dual fuel has been made.

DANGER

Serious injury or damage may occur if not con-

!figured properly. Please consult an Authorized Service Dealer with any questions.

1.14 ENGINE OIL RECOMMENDATIONS

The unit has been filled with 15W-40 engine oil at the factory. Use a high-quality detergent oil classified “For Service CC, SD, SE, SF.” Detergent oils keep the engine cleaner and reduce carbon deposits. Use oil having the following SAE viscosity rating, based on the ambient temperature range anticipated before the next oil change:

Temperature	Oil Grade (Recommended)
Above 80° F (27° C)	SAE 30W or 15W-40
32° to 80° F (-1° to 27° C)	SAE 20W-20 or 15W-40
Below 32° F (0° C)	SAE 10W or 15W-40

1.16 BEFORE INSTALLATION

Before installing this equipment, check the ratings of both the generator and the transfer switch. Read “Emergency Isolation Method” and “Total Circuit Isolation Method” in the installation manual (Part No. 079699).

The generator’s rated wattage/amperage capacity must be adequate to handle all electrical loads that the unit will power. It may be necessary to group the critical (essential) loads together and wire them into a separate “emergency” distribution panel.

This generator can be installed in conjunction with an engineered transfer switch, if necessary (see Section 2.10).

The standard prepackaged transfer switch (ATS mode) does not have sensing or controlling circuit boards. Instead, the generator control console hous- es a “Printed Circuit Board Assembly”, which con- trols all phases of operation, including engine start up and load transfer.

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