All installations and services must be performed by qualified service personnel.
Modifications to ECM blower speed settings are done using the S3 and S4 dip switch controls. (Labeled 1 to 8 in Figure 21). Thermo Pride
2-Stage Blower Settings (from factory)
Table 4
| Control Board | Heating | Heating | Constant Fan | Cooling | |
Unit | Dip Switch | CFM | CFM | |||
CFM | CFM | |||||
| Settings | (low fire) | (high fire) | |||
|
|
| ||||
885 | 1012 | 500 | 1000 | |||
8 On | ||||||
|
|
|
|
| ||
|
|
|
|
|
| |
760 | 931 | 500 | 1000 | |||
|
|
|
|
|
| |
1094 | 1340 | 600 | 1200 | |||
8 On | ||||||
|
|
|
|
| ||
|
|
|
|
|
| |
1015 | 1243 | 600 | 1200 | |||
|
|
|
|
|
| |
1366 | 1673 | 700 | 1400 | |||
8 On | ||||||
|
|
|
|
| ||
|
|
|
|
|
| |
1270 | 1556 | 700 | 1400 | |||
|
|
|
|
|
|
For adjustments to the Cooling CFM settings, as well as all additional CFM changes, please reference the dip switch tables listed in the ECM operation manual. (Included with every furnace.)
5. FIELD WIRING AND REPLACING WIRING
Field wiring between the furnace and devices not attached to the furnace shall conform with the temperature limitation for Type T wire[63°F rise (35°C)] when installed in accordance with the manufacturer’s instructions. If any of the original factory supplied furnace wiring is replaced or a separate device other than the thermostat is wired internal to the unit 105°C thermoplastic or equivalent wire must be used.
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