LINK-TRACK MASTER 2554791 - Caterpillar

Space Heaters
The SR4B and SR5generators can operate in high humidity conditions without problems. However, problems can occur when the generator is idle and the surrounding air is warmer than the generator. Moisture can form on the windings that will result in poor performance from the windings. Moisture can also result in damage to the windings. Whenever the generator is not active, ensure that the space heaters are in operation.Whenever the generator is operating, ensure that the space heaters are disconnected.An external source of either 115 VAC or 230 VAC is required to operate the space heaters.
Illustration 1 g00556903
Space heater connection to external source (H1), (H2), (H3), and (H4) terminals.
If a 115 VAC source is available, connect both heaters in parallel across the source. If a 230 VAC source is available, connect both heaters in series across the source. Refer to Illustration 1.