HVACopediaTrane · Furnace
HLd Hold during run test
What the display is showing
Shown when the Option key is pressed during run test mode to freeze the current test step so readings can be taken.
Applies to: S8V2
Settings for these units
Clearance to combustibles · Trane S8V2
| Cabinet width | Vertical sides / top | Horizontal sides / top |
|---|---|---|
| 14.5 in. | 0 / 1 in. | 1 / 2 in. |
| 17.5 in. | 0 / 1 in. | 1 / 2 in. |
| 21.0 in. | 0 / 1 in. | 1 / 3 in. |
| 24.5 in. | 0 / 1 in. | 1 / 5 in. |
24 in. front service access.
3 in. in front of the combustion air openings.
Return filter size by cabinet width · Trane S8V2
| Cabinet width | Filter |
|---|---|
| 14-1/2 in. | 1 - 14 x 25 x 1 in. |
| 17-1/2 in. | 1 - 16 x 25 x 1 in. |
| 21 in. | 1 - 20 x 25 x 1 in. |
| 24-1/2 in. | 1 - 24 x 25 x 1 in. |
Filters are field supplied and mounted outside the cabinet.
Over 1600 CFM upflow: return on both sides, one side plus bottom, or bottom only.
Models that show this code
12 models in Trane S8V2
Other codes on the same units
- ARF Calculated airflow readout (cfm x 10)
- Both LEDs flashing together Bluetooth pairing in progress
- CoF Continuous fan demand
- Cr Control code release number
- FD Factory default reset done
- IdL Idle - no demand
- LEDs both solid Power-up
- MNR Model number recovery
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Source: Trane S8V2 installation FNR-SVX003A-EN, Run Test Mode, p.57-58 and wiring label mode list. Summarized in our own words; check the original manual for your model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.