3 THRU 12.5 TON
All units contain four filters. The filter racks on these units will receive either 1" or 2" filters. Filters can also be installed in the building at a suitable return air location if an economizer or outside air accessory is not used. Filters must always be used. They should be inspected once a month and thor- oughly cleaned or replaced if it appears they are beginning to accumulate excessive dirt.
To install the filters, remove the filter access panel as shown in Figure 2.
NOTE: Filters must be installed with “Air Flow” arrows point- ing inward
Slide filters all the way into the filter racks provided. When more than one filter in a filter rack is required, they must butt each other when sliding into position. Replace the filter access panel.
FILTERS
INDOORCOIL
FILTERACCESS |
PULLS |
FIGURE 2- FILTER ACCESS 3 THRU 12.5 TON
15 AND 20 TON
All units contain 2" filters. Filters can be installed in the build- ing at a suitable return air location if an economizer or outside air accessory is not used. Filters must always be used. They should be inspected once a month and thoroughly cleaned or replaced if it appears they are beginning to accumulate excessive dirt. Filter sizes and quantities are shown in the fol- lowing table.
THROWAWAY | QUANTITY PER UNIT (Nom, Tons) | |
FILTER |
|
|
|
| |
SIZES | 15 TON | 20 TON |
(Inches) |
|
|
12 x 24 | - | 12 |
|
|
|
16x 20 | 4 | - |
|
|
|
16 x 25 | 4 | - |
|
|
|
To install the filters, remove the filter access panel located to the left of the condensate drain connection as shown in Fig- ure 3.
NOTE: Filters must be installed with “Air Flow” arrows point- ing inward
Slide filters all the way into the filter racks provided. When more than one filter in a filter rack is required, they must butt each other when sliding into position. Replace the filter access panel.
4 | Johnson Controls Unitary Products |
