Electrical Circuit Components; Terminal Block (4, Figure 6-7); Heater Element (4, Figure 6-9) - Cleveland steamcraft 21-CET-8 Service Manual

Page 70 Model 21-CET-8 Service Manual

ELECTRICAL CIRCUIT COMPONENTS

Terminal Block
(4, Figure 6-7)
Heater Element
(4, Figure 6-9)
3. The condenser solenoid deenergizes, dosing the condenser valve.
4. The drain solenoid deenergizes, opening the drain valve.
5. The 3-minute timer circuit is energized and the timer starts to count down. While
the timer counts down, the blowdown and rinse cycles occur.
a. The fill solenoid is energized, opening the fill valve. This injects a high velocity
water stream from the fill valve into the drain valve, causing rapid draining
(blowdown) of the steam generator. Rapid draining causes turbulence in the
generator to mix and remove bottom sediments with the drain water.
b.The rinse solenoid is energized, opening the rinse valve. The rinse valve injects
water into the top of the float cylinder. Rinse flow through the cylinder flushes
sediment that collects during operation.
c. The contacts of relay K1 open during slowdown/rinse.
d. After the 3-minute timer counts down to zero, the timer opens the circuit to the
fill and rinse solenoids, dosing these valves. The drain valve remains open to
drain any residual water from the system.
This section briefly describes the major SteamCraft 3.1 components and their
functions. Refer to the drawings in Chapter 6 for the installation location,
assembly details and parts ordering information for each of these
components. The Chapter 6 figure and item number is included for each
component described in this section.
When servicing, repairing, or replacing any component, use only Cleveland
Range authorized repair parts and procedures. Check that the repair part has
the correct part number and is compatible with the power supply rating on the
SteamCraft 3.1 Product Identification Plate (Chapter 1). Verify proper wiring
connections of newly replaced parts before energizing the unit. Refer to the
schematic and wiring diagrams on the unit or at the end of Chapter 6.
The terminal block provides connection points from the external electrical
supply to the steamer. The three-terminal block has connections to the
transformer and heater contactor.
The heater assembly, located inside the generator near the bottom, comes as a three-
coil element. In this text, heater element refers to the complete heater assembly.
Heater coil refers to each of the three coils in the assembly. For proper operation of
the SteamCraft 3.1, the rating of the heater element must match the external supply
voltage.
Printed 12/90