Install Temperature Probe - Thermo Scientific 902 Operating And Maintenance Manual

Install Vent Stack, Solenoid
and Injection (continued)

Install Temperature Probe

Thermo Scientific
7. Inside the chamber, seal around the end of the vent stack with
Permagum.
8. Install the transfer hose connecting one end to the injection assembly,
the other to the solenoid valve. Connect the solenoid valve to the
supply source. The solenoid mounting bracket may be discarded.
Note When selecting a CO
s
siphon tube.
1. Locate the 0.500" pre-punched hole in
the upper left hand back corner of the
chamber ceiling. Remove the tie wrap
securing the coiled probe/solenoid
harness. Uncoil the probe lead and run
the probe tip (approximately 12") down
through 0.500" porthole (Figure 5-4).
2. As shown in Figure 5-3, thread the small
tie wrap through the openings in the
front of the bracket. Secure the probe on
the back of the bracket with the tie wrap.
3. Tap #8-32 the two
pre-punched holes
located on the interior
left wall of the freezer.
Mount the bracket.
Figure 5-4 shows the
Back-Up probe
mounted on the
interior left side wall
of the freezer.
supply cylinder, it must be equipped with a
2
Figure 5-3. Secure probe
Figure 5-4. Mounted probe clip
Section 5
Factory Installed Options
Model 900 and 5900 Series 5-3