Precision Control Systems Hi-Temp IR 5209 - Manual (Page 17)

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4. Loosen (do not remove) the setscrews in the ceramic
terminal blocks on each end of the heater corresponding to
the lead wires of the lamp to be replaced.
5. While holding the lamp, gently pull the lead wires out of the
ceramic terminal blocks and set the old lamp aside for
disposal.
6. Both lead wires of the lamp need to be trimmed prior to
installation into the heater. Figure 5-3 details the proper
lengths to which the lead should be trimmed and stripped.
7. While holding the replacement lamp by the ceramic end
seals, place the lamp into the groove machined into each
lamp bracket plate located on each end of the heater. Orient the lamp so that the gas fill
tip , formed into the quartz tube of the lamp, points out away from the reflector.
8. Insert the bare wire of each insulated lamp lead
into the ceramic terminal block position that
previously held the old lamp. Push each lead wire
into the terminal block far enough so, that when
tightened, the setscrew will hold the lead securely.
9. Tighten the setscrews in each terminal block so the
lead wires are held securely. Note: tighten the
terminal block set screws to a torque of 0.6 feet –
lbs. (0.82 N-m).
10. Arrange the lead wire on each end of the lamp into the
groove machined into each of the aluminum cooling
manifolds located at either end of the heater. Each groove
corresponds to each of the individual lamps of the heater.
11. Form a loop within each lead along its length from the top
of the cooling manifold and the ceramic terminal block. This
loop will act as a strain relief within the lead during normal
operation of the heater.
12. Reinstall the quartz window within the heater by carefully
sliding the window into the grooves machined into the
heater reflector.
13. Reinstall both end covers and secure each to the heater
with the three screws per end cover.
Note: tighten the end cover screws to a torque of 1.7 ft.-
lbs. (2.3 N-m).
Figure 5-3
Figure 5-2
Figure 5-4