Precision Control Systems ChamberIR 4069 - Manual (Page 21)

6-4
Figure 6-4. Quartz Liner Removal
5. If cleaning the liner, use a non-abrasive glass cleaner (i.e. household ammonia
and water or isopropyl alcohol) and a clean, dry, lint-free cloth. After cleaning, do
not touch the outside surface of the liner unless wearing cotton gloves.
6. Reinsert the edges of the liner into the grooves of the quartz-liner bracket.
7. Reinstall the other bracket and secure with the two bracket screws.
8. Repeat this process for the other half of the liner.
6.3
Cleaning the Reflectors: Clean reflectors provide the greatest radiant efficiency.
If the reflector surface becomes contaminated, it reflects less energy. The energy that is
not reflected is lost, absorbed by the reflectors, and removed by the cooling water and air.
The following procedure should be used to clean the Model 4069 reflectors:
Note:
• Remove all power from the heater BEFORE attempting to clean the heater
reflectors.
1. Remove the lamps and quartz liner as described in Section 6.1 – Lamp
Removal/Replacement/Installation and Section 6.2 Split Quartz Liner Cleaning
and Replacement.
2. Clean the reflectors with a mixture of warm water and common household
ammonia followed by a thorough wipe-down using a clean, water-dampened
flannel cloth.
3. Depending on the type of contamination present on the reflector, a suitable
solvent may be required to remove the contamination. The solvent must be
selected based on its inability to adversely affect the aluminum reflector.
4. Thoroughly wipe the reflector using the warm water/household ammonia mixture
followed by the dampened flannel cloth.
5. Replace the lamps and quartz liner, as outlined in Section 6.1 – Lamp
Removal/Replacement/Installation and Section 6.2 Split Quartz Liner Cleaning
and Replacement.
If necessary, the reflectors may require re-polishing. This is permissible because the
reflector is solid aluminum and can be re-polished many times without damage from