Page 24
Model 21 -CET-8 Service Manual
b.Turn off electric power to the SteamCraft 3.1 at the main power switch.
Install the right side
access cover and secure it to the unit with the two
screws (Figure 2-16).
Operating Tests • Key Pad Control Panel
This procedure is followed for SteamCraft 3.1's with key pad control panels
(Figure 2-23). The test consists of observing and timing various steamer
functions in the MANUAL operating mode, and in the TIMED operating
mode. To become familiar with the functions observed and timed, read
through all steps of the procedure before starting the steamer.
The times listed in the procedure are approximate and may vary with the
temperature of the equipment, the temperature and pressure of the supply
water, heater supply voltage, and pipe lengths. A stopwatch, wristwatch with
a second hand, or one with a digital readout in seconds is required for timing
the functions.
1. Remove the right side access cover.
2.
Perform the Setup and Slowdown Inspection procedure. Leave the control
settings as they are at the end of the procedure.
• The main power switch is ON.
• The ON/OFF switch is OFF (indicator not lighted).
• The TIMED/MANUAL switch is in the TIMED (top) position.
• The timer display is blank while the ON/OFF switch is set to OFF.
3. If the timer is not zeroed (00:00) when power is turned on in step 4, press
and hold the CLEAR key on the key pad control panel to zero the timer.
4. When the ON/OFF switch
is turned
ON
,
the steam generator com-
partment fills with water. Start timing upon pressing the top of the
ON/OFF switch to
ON
.
Check and time the following functions.
• Immediately: The red ON/OFF switch light turns on. The fill valve opens
and water begins to fill the steam generator.
• After 1 Minute:
Water appears in the bottom of the float cylinder as the
water level in the steam generator rises. Check that no water flows
from the drain opening. Check for plumbing leaks.
• Alter
2.
5
Minutes:
The fill valve closes (click sound). Water level in the
float cylinder stops rising, about one inch from the top of the cylinder. If
the water level continues to rise above the top of the float cylinder,
have a qualified service representative check the float circuit
Figure
2-23.
Key Pad Control Panel
Printed 12/90
Summary of Contents for steamcraft 21-CET-8
Page 9: ......
Page 53: ...Model 21 CET 8 Service Manual Page 45 Printed 12 90 ...
Page 104: ...Model 21 CET 8 Service Manual Page 97 Printed 12 90 ...
Page 109: ...Figure 6 1 Major Component Groups Printed 12 90 ...
Page 112: ...Page 106 21 CET 8 Service Manual Figure 6 3 Steamer Compartment Group Printed 12 90 ...
Page 114: ...Figure 6 4 Compartment Door And Hinge Assemblies Printed 12 90 ...
Page 120: ...Page 114 21 CET 8 Service Manual Figure 6 7 Electrical Components Assembly Printed 12 90 ...
Page 122: ...Figure 6 8 Steam Generator Assembly Printed 12 90 ...
Page 124: ...Figure 6 0 Heater Assembly Printed 12 90 ...
Page 130: ...Figure 6 11 Water Inlet System Printed 12 90 ...
Page 132: ...Figure 6 12 Condenser And Drainage Systems Printed 12 90 ...
Page 134: ...Figure 6 13 Equipment Stand Printed 12 90 ...
Page 136: ...Figure 6 14 SteamCraft 3 1 Wiring Diagram Electronic Time Printed 12 90 ...
Page 137: ...Figure 6 15 SteamCraft 3 1 Schematic Diagram Electronic Timer Printed 12 90 ...
Page 138: ...Figure 6 16 SteamCraft 3 1 Wiring Diagram Mechanical Timer Printed 12 90 ...
Page 139: ...Figure 6 17 SteamCraft 3 1 Schematic Diagram Mechanical Timer Printed 12 90 ...