4700 Refrigerated Sampler Service Guide
Section 3 Refrigeration System
3-18
5. Route the fan harness around the drip tray and connect to
the relay, taking care to connect the ribbed and smooth
wires correctly, as shown in Figure 3-18.
a. For 230V units, also route the harness wires around
the right side of the terminal box and under the top
hold-down tab. Tighten the screw.
6. Replace the terminal cover, taking care not to pinch or bind
any of the wires.
3.4.4 Module Replacement
The refrigeration module is designed to be replaced as a complete
unit.
U n l i k e t h e o t h e r m o d u l e s, t h e r e f r i g e r a t i o n m o d u l e i s
voltage-specific. Be sure to order the replacement module and/or
appropriate components for your AC mains power. Table 3-1 on
page 3-1 contains part numbers for the refrigeration system and
its components. For a complete listing of replacement parts, refer
to Appendix B.
CAUTION
Replacement of individual components may compromise the
closed refrigerant system and the protective coatings.
Removal
1. Remove the power cord that runs through the refrigeration
assembly. Refer to Figure 3-21.
a.
230V/50 Hz Systems Only
— Remove the AC Plug
adapter from the end of the power cord by first cutting
away the plastic heat shrink tubing. Then pull the
adapter off, leaving just the North American 120V plug.
Figure 3-20 Removing 230V adaptor from AC power cord
b. All Systems — Slide the bushing sideways away from
the refrigeration module until it is free. Use care to
avoid bending the refrigeration tubing.
c. All Systems — Pull the power cord through the module.
Summary of Contents for 4700
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Page 124: ...4700 Refrigerated Sampler Service Guide Appendix A Electrical Diagrams A 2 ...
Page 126: ...4700 Refrigerated Sampler Electrical Wiring A 4 Figure A 3 4700 wiring diagram 230V ...
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