HEC-Series Service Manual
SERVICE OPERATIONS
10/21/01
9-3
When installing a new valve, be sure to use the proper soldering techniques to prevent overheating
the valve body which could damage the superheat spring and result in flood back problems.
When soldering:
1. Wrap a wet cloth around the valve body and element.
2. Direct the flame away from the valve body.
3. Apply only enough heat to flow the alloy material into all the joint areas. Do not overheat.
4. After the brazing alloy has set, quench or apply a wet brush or swab to remove the flux residue.
Use Emery cloth or a wire brush if necessary.
Freezer Pressure Switches.
The freezing time period for the production of crushed ice is controlled
by the freezer pressure switch (FPS1) located inside the control panel. The freezing time period for
cylinder ice is controlled likewise by the second switch (FPS2).
These switches were set at the factory to produce ice of recommended thickness. Look at the
“Certificate of Test” which was provided with the machine for a sample set of pressure readings with
corresponding time periods and water temperatures. Also see TABLE 11-2 for typical settings. Do
not make adjustments until several ice discharging cycles have been made.
FIGURE 9-1
(Allen Bradley)
Summary of Contents for HEC-10
Page 1: ...HEC SERVICE MANUAL ...
Page 95: ...HEC Series Service Manual SERVICE OPERATIONS 10 21 01 9 13 FIGURE 9 9 Cutter Water Tank Parts ...
Page 96: ...HEC Series Service Manual SERVICE OPERATIONS 10 21 01 9 14 FIGURE 9 10 Cutter Drive Parts ...
Page 97: ...HEC Series Service Manual SERVICE OPERATIONS 10 21 01 9 15 FIGURE 9 11 Cutter Parts ...
Page 106: ...HEC Series Service Manual MODEL NUMBER STRUCTURE 10 21 01 10 1 10 Model Number Structure ...
