Teledyne 4700 Serivce Manual page 81

Module installation
Figure 3-25 Drain tube and drip pan
4700 Refrigerated Sampler Service Guide
1. Use two new cable ties to attach the marked temperature
sensor to the evaporator coil in the location, as shown in
Figure 3-1.
Note
The sensor must be mounted in the correct position in order to
operate correctly.
2. Connect the wires to the compressor and replace the cover.
Earth ground bonding conductor. Ensure that the green/yellow
wire is reconnected to this terminal.
3. Route the AC power cord through the refrigeration module.
Secure it in place with the bushing (Figure 3-21).
4. 230V/50 Hz Systems Only — Attach the 230V plug
adapter to the end of the power cord. Slide the piece of
plastic heat shrink tubing over the plugs. Then apply a
heat source of at least 80°C (176°F) to shrink the tubing.
5. Move the refrigeration module up to the rear of the refrigera-
tor and replace the drain tube in the drip pan on the module.
6. When reinstalling the refrigeration module, use caution
not to pinch the sensor wiring.
7. Following the steps in Section 1.9, close the rear compart-
ment. Restore AC power.
8. After 30 minutes, perform the refrigerator temperature
diagnostic test (Section 5.1.8). As the refrigerator cycles off
and on, the reported temperature will rise above and below
the set temperature. However, the average reported tem-
perature should be the same as the configured tempera-
ture.
Section 3 Refrigeration System
CAUTION
3-21