SEAL-U-CUP 1672938 - Caterpillar

The internal wiring of the heater is completed in the factory. The conduit and the wiring for the main power supply must be supplied by the customer.The main power supply operates the heating element and the pump motor. The transformer in the control box reduces the main supply voltage to 120 V for use by the heater's control circuit. The transformer and the heater's control circuit are protected from electrical overload with fuses that are already installed in the control box. The 120 V system is activated by a 24 V control relay in the control box. The 24 V supply is obtained from the engine's terminal box or the engine's control system.If the heater was not installed at the factory, the following items must be provided by the customer:
Mounting of the heater
Conduit for the 24 V supply
Wiring for the 24 V supply
Plumbing for the heaterMounting
Mount the heating system as low as possible in a horizontal position. This allows the heating tank to completely fill. If the heating tank cannot completely fill, the service life of the heating element will be reduced. The outlet for the fluid must be in the uppermost position.
Illustration 1 g00885400
Slots in the mounting bracketsThe unit has two mounting brackets. Each bracket has two slots for mounting bolts. Use bolts, nuts, and washers of the appropriate size for mounting of the unit.Bolting of the unit to the engine's mounting base is recommended. When you bolt the unit to the engine's mounting base, make sure that there is metal to metal contact between the unit and the base. This will provide a ground path to the ground plane.Use an appropriate lifting device to place the unit into position.
The jacket water heater weighs approximately 73 kg (161 lb).
The lube oil heater weighs approximately 73 kg (161 lb).
The combined heater weighs approximately 215 kg (474 lb).Handling of the unit during shipping may have caused vibrations to loosen some of the unit's bolts and screws. Check all of the fasteners. Tighten any loose fasteners.Installation of the Power Supply
Conduit
Illustration 2 g00885517
Bottom view of a stand alone heater (1) Hole for the main power supply's 19 mm (3/4 inch) conduit (2) Hole for the 24 V power supply's 12.7 mm (1/2 inch)
Illustration 3 g01365843
Front view and bottom view of a combined heater (1) Hole for the main power supply's 19 mm (3/4 inch) conduit (2) Hole for the 24 V power supply's 12.7 mm (1/2 inch)Route the properly sized conduit from the main power supply to the control box. Hole (1) in the control box is for the 19 mm (3/4 inch) main power supply's conduit.If the heater was not installed at the factory, route the appropriate conduit from the engine's terminal box to the control box's hole (2) for the 24 V power supply's 12.7 mm (1/2 inch) conduit.Use the liquid tight conduit. Use proper support and alignment in order to avoid strain on the conduit.Main Power Supply
These heating systems must be operated at the correct voltage. Improper voltage results