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Unit Description

Diesel Engine

The unit uses a quiet running TK486V (Tier 2), which is a

4-cylinder, water cooled, direct injection diesel engine. The

engine is coupled directly to the compressor. Belts transmit

power to the unit fans, alternator and water pump.

Figure 7: TK486V (Tier 2)

ELC (Extended Life Coolant)

ELC (Extended Life Coolant) is standard equipment. The

maintenance interval for ELC is five years or 12,000 hours. A

nameplate on the coolant expansion tank identifies units with

ELC (see “Safety Decals and Locations”). The new engine

coolant, Chevron Extended Life Coolant, is RED in color

instead of the previous GREEN or BLUE-GREEN colored

conventional coolants.

NOTE: The use of 50/50% pre-mixed ELC is recommended

to assure that de-ionized water is being used. If 100% full

strength concentrate is used, de-ionized or distilled water is

recommended instead of tap water to insure the integrity of

the cooling system is maintained.

CAUTION: Do not add “GREEN” or

“BLUE-GREEN” conventional coolant to cooling

systems using “RED” Extended Life Coolant, except

in an emergency. If conventional coolant is added to

Extended Life Coolant, the coolant must be changed

after 2 years instead of 5 years.