PISTON/ORIFICE INSTALLATION INSTRUCTION
Evaporator | Importent - Replace the existing |
| piston (before installing the unit) |
| with the piston supplied in the Kit Bag: |
| when a CACA24 evaporator is matched with a |
| T2CA4400, T2CA2400, T2CA8400 or T3CA9240, T3CA2240, |
| T3CA9940 condenser which has a 24,000 Btuh compressor |
| (“4” in the capacity decoding field) the piston will need relacement |
only on the 24,000 Btuh zone. *
Your EMI evaporator unit contains the appropriate piston for your model. Refer to this document to determine if a change is required based on your condenser rating. If your match is not listed below no piston change is required. (See chart)
Model # | Condenser | Factory Installed | Field Changeover |
Evaporator | Btuh |
| |
| T2CA4400 |
|
|
CACA24 | T2CA2400 | .059” | .063” |
| T2CA8400 |
|
|
| T3CA9240 |
|
|
CACA24 | T3CA2240 | .059” | .063” |
| T3CA9940 |
|
|
*“4” in the capacity decoding field = 24,000 Btuh
CAC CASSETTE PREPARATION AND POSITIONING
POSITIONING
The Cassette installation position should be selected with the following points in mind:
1.Pipe work, electrical connections, con- trol box and condensate pump access panels should be readily accessible.
2.The unit should be positioned at least 5 ft. from a wall or similar obstruction. Position the unit as close to the center of the room as possible to insure air is distributed evenly.
3.Position the unit so that the discharge air does not blow directly on the thermostat.
4.The unit should not be positioned di- rectly above any obstructions.
6.There should be a minimum 1” clear- ance above the depth of the Cassette and the false ceiling for proper instal- lation, shown below (see the “CAC Di- mensions” section in the back of this IOM for cabinet sizing):
Figure #1
Dimension A + 1” = minimum space above the false ceiling for installation
A +1” | A |
|
5.The condensate drain should have suf- ficient fall (1” per 10’) in any horizontal run between Cassette and drain. Maxi- mum condensate pump lift is 36”.
Small Cabinet Dimension A = 12¾” min. Medium Cabinet Dimension A = 11½” min. Large Cabinet Dimension A = 13½” min.
CAC Cassette Evaporator | 6 | www.enviromaster.com |
