Description
Digital Controller Retro Kit fits GARN® models 1500, 1900, 2000, 2200, 2500, 3200
Each kit includes:
Digital Controller (P-0068);
Low water cut off/temp sensor stem (17 in) with mounting fitting for 1500, 1900, 2000, 2200, 2500, 3200 (P-0054);
Flue Temp Sensor, thermocouple with bushing (P-0055);
Return Pipe ,HWR temp sensors (P-0058)
Supply Pipe, HWS temp sensors; (P-0057)
Optional : Outdoor temp sensor in included, sold separately (P-0056).
The digital controller utilizes a pre-programmed chip that is upgradeable as control improvements are developed. In addition, the digital controller and its related sensors can be retrofitted to almost all existing GARN® WHS units with minor alterations dating back to 1990. This controller is a significant improvement over the analog timer controller that it replaces (units produce before 2010). The new digital controller was developed to perform the following functions:
- Eliminate requiring the GARN® WHS user to set the induced draft blower timer based on an estimate of fuel load size, wood species or estimated moisture content.
- Increase efficiency by eliminating blower operation beyond the termination of combustion.
- Provide a digital readout of flue gas and thermal storage temperatures.
- Provide a digital readout of the following additional temperatures: hot water supply and hot water return.
- Terminate blower operation upon unexpected thermal storage water loss.
- Display the duration of the burn (hrs & minutes) following termination of combustion.
- Simple installation, NO Drilling, Tapping or Gluing
