ACV Marquis TWH200LP Installation Manual

ACV Marquis TWH200LP Installation Manual Manual pdf 23 page image

20Control SystemGeneral DescriptionP920C is a Display Interface with a Liquid CrystalDisplay.It will be used to navigate and to change temperature setpoint, and change controller parameters.Operating Conditions• Temperature- Operating Ambient Temperature Range: 50 to140°F.- Operating Relative Humidity up to: 90% at104°F.- Shipping & Storage Temperature Range of: 0 to170°F.• There is one set of DIP switches on the control module• The number 6,7 DIP switch has to be OFF whenoperating the water heater at the normal state.This unit is only approved for installation up to 10,000ft.above sea level.Note:This water heater may be installed at elevation up to10,000ft for use with Natural Gas or Propane. To use thewater heater at a specific altitude, Setting in InstallerMode should be set as describe below.Above 2,000ft (610m), the water heater will de-rate by4% for each 1,000ft (305m) of altitude gain.Figures below are available within range of 2,000 ~4,500ft (610~1350 m)CAUTIONHigh Altitude SettingLevel Value9:HAChoose an altitude from the followingfour options where water heater isinstalled0~2 0~1,999 ft (0~609m)2~5 2,000~4,999 ft (610~1,523m)5~8 5,000~7,999 ft (1,524~2,438m)8~10 8,000~10,000 ft (2,439~3,048m)Propane CO Natural Gas CO3” VENT 2” VENT 3” VENT 2” VENT100 ~ 300 ppm (Low - High Fire)HighAltitudeSettingFiring Rate Propane CO2 Natural Gas CO23”/2” VENT 3”/2” VENT0~2 Max. fire +/- 0.1% 10.7 10Min. fire +/- 0.1% 9.7 8.52~5 Max. fire +/- 0.1% 10.2 9.1Min. fire +/- 0.1% 10.3 9.75~8 Max. fire +/- 0.1% 10.3 9.1Min. fire +/- 0.1% 10.4 9.88~10 Max. fire +/- 0.1% 10.5 9Min. fire +/- 0.1% 10.6 9.8