Filter Replacement | ciency systems. The heater can be supplied with | |
| stainless steel, which is commonly used in high effi- | |
1. Remove the filter box cover by loosening and | ||
al. | You may, however, choose to use outside | |
removing the two wing nuts holding it in place. | combustion air for one or more of these reasons: | |
| 1. | Installation is in an area containing contaminants |
|
| listed below which will induce acidic condensation. |
| 2. | You want to reduce infiltration into your building |
|
| through openings around windows and doors. |
| 3. | You are using |
|
| which is more |
|
| metallic vent pipe. In extremely contaminated ar- |
|
| eas, this may also experience deterioration. |
| Products causing contaminated combustion air: | |
Fig. 50: Remove the Air Filter Box Cover | • | spray cans containing chloro/fluorocarbons |
• | permanent wave solutions | |
2. Remove the filter by lifting it straight up and out of | • | chlorinated waxes/cleaners |
• | ||
the slot in the filter box. | • | calcium chloride used for thawing |
| • | sodium chloride used for water softening |
| • | refrigerant leaks |
| • | paint or varnish removers |
| • | hydrochloric acid/muriatic acid |
| • | cements and glues |
| • | antistatic fabric softeners used in clothes dryers |
| • | |
| • | solvents found in household laundry rooms |
| adhesives used to fasten building products | |
| • | similar products |
| Areas where contaminated combustion air commonly | |
| exists: | |
Fig. 51: Remove the Air Filter | • | dry cleaning/laundry areas |
3. Reverse steps 1 and 2 to install the new filter. Use | • | metal fabrication plants |
• | beauty shops | |
Raypak replacement filters, kit number 012552F | • | refrigeration repair shops |
(12”X12”) for models | • | photo processing plants |
012553F (16”X16”) for models | • | auto body shops |
| • | plastic manufacturing plants |
APPENDIX | • | furniture refinishing areas and establishments |
• | remodeling areas | |
| • | new building construction |
Inside Air Contamination | • | open pit skimmers |
All heaters experience some condensation during | Check for areas and products listed above before in- | |
stalling heater. If found: | ||
• | remove products permanently, OR | |
Combustion air can be contaminated by certain vapors | ||
in the air which raise the acidity of the condensate. | • | install TruSeal direct vent. |
Higher acidity levels attack many materials including |
|
|
51