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Heater Setting Program NavigationOnce the code is confirmed, the user can now start to set the Heater Settings. Use the arrow keys on the display to navigate throughthe Heater Setting Program. A blinking setting indicates it can be changed. To change a setting, press the ENTER Key. Heatersettings can be increased by pressing the UP ARROW ▲ and decreased by pressing the DOWN ARROW ▼ on the display. Whendone, press ENTER. Setting will stop blinking and you can move on to next setting. Press RESET to exit programming and storesettings. Listed below are the heater settings that can be programmed into the control.50SCREENIGNITION DIFF SET7 o FTANK SETPOINT120 o FTANK DIFF SETPOINT7 o FDESCRIPTIONFunction: Allows the user to adjust the ignition differential set point from 1 o F to 36 o F (Factory Default 7 o F). Degreesbelow set point must be equal to or below tank differentials.Function: Adjusts the tank set point from 59 o F to 180 o F (Factory Default 120 o F).Function: Adjusts the tank differential set point from 1 o F to 18 o F (Factory Default 7 o F). Degrees below set pointwhere demand starts.TEMP DISPLAY C OR F Function: Adjusts the temperature measurement in F = Fahrenheit to C = Celsius (Default is Fahrenheit).o FTable 17 – Heater Setting Program NavigationClock Settings(NOTE: The clock will reset if the heater is powered off for more than a week.)SCREENDESCRIPTIONCLOCK MODE (12/24)08/28/2009 Fr 9:42AFunction: Changes the clock from 12 hour mode (8:45 PM) to 24 hour mode (20:45). To change to 24 hourmode, press the ENTER key. The letter (A or P) after the time will blink. Press the up or down arrow key once andthe letter will disappear. Press the ENTER key to save the new setting.CLOCK HOUR08/28/2009 Fr 10:01ACLOCK MINUTE08/28/2009 Fr 10:01ACLOCK DAY OF WEEK08/28/2009 Fr 10:01ACLOCK DATE MODE08/28/2009 Fr 10:01ACLOCK YEAR08/28/2009 Fr 10:01ACLOCK MONTH08/28/2009 Fr 10:01AFunction: Allows the user to adjust the hour setting.Function: Adjusts the minute setting.Function: Adjusts the day of week.Function: Allows the user to switch to European date format (2009/08/28) from US format (08/28/2009).Function: Adjusts the year setting.Function: Adjusts the month setting.CLOCK DATEThe clock is set.08/28/2009 Fr 10:01ATable 18 – Clock Setting ScreensNOTE: The internal clock does not adjust for daylight savings time, and requires manual adjustment.E. PROGRAMMING THE SYSTEM SETTINGSystem Setting Program AccessNote: Programming the heater control is not possible when the heater is firing. Make sure any input which can create a demand on theheater, such as the tank thermostat, is turned off, so the heater will remain idle to allow programming.SCREENENTER MENU CODE000DESCRIPTIONTo access the heater setting program, press and hold the ENTER Key for 4 seconds, until the display shows thescreen at left.ENTER MENU CODE Using the arrow keys on the display, log in your System Menu Access Code “925”. To confirm code, press ENTER925to access system setting program navigation menu.Table 19 – System Setting AccessLP- 429 REV. 6.6.13
F. SYSTEM SETTING PROGRAM NAVIGATIONOnce the System Menu Access Code is confirmed, the user can begin to set the system setting menu. Use the arrow keys onthe display to navigate through the system setting program. To change a setting, press ENTER. System settings can be increased bypressing the UP ARROW and decreased by pressing the DOWN ARROW on the display. When done, press ENTER. Setting will stopblinking and you can move on to next setting. Press RESET to exit programming and store settings. Listed below are the heatersettings that can be programmed into the control.51SCREENFunction 1MODEVWH MODE 1Function 3DHW TANK MAX TEMP180 o F 3Function 4BURNER OFF DIFF20 o F 4Function 6VWH POST PUMP TIME0 MINUTES 6Function 7WARM WEATHER OFF68 o F 7Function 8MIN OUTDOOR TEMP5 o F 8Function 9MAX SUPPLY TEMP190 o F 9Function 10MAX OUTDOOR TEMP68 o F 10Function 11MIN SUPPLY TEMP95 o F 11Function 12MIN HEATER TEMP68 o F 12Function 13CH POST PUMP TIME0 MINUTES 13Function 14DHW PRIORITY30 MINUTES 14Function 15CASCADE ADDRESS0 15Function 16OPTIONAL INPUTRETURN SEN 16Function 170-10 VOLT FUNCTIONTEMPERATURE 17Function 18STEP MODULATE MODEON 18Function 19HEATER SUPPLY DHW180 o F 19Function 20WATER SAFETY INPUTWATER PRESSURE 20DESCRIPTIONFactory Program ModeThis screen indicates that the control is configured correctly for a volume water heater. Do not change this screen.DHW Tank Max TempThis is the maximum temperature that can be selected in heater settings for the DHW tank. Factory Default is 180 o F.(Range: 95 o F to 180 o F)Burner Off DifferentialThis is the amount of degrees above tank set point that the burner will maintain its outlet water temperature whilethere is a demand for heat. Factory Default is 20 o F. (Range: 1 o F to 45 o F)VWH Post Pump TimeThe heater pump has the ability to post purge energy from the heater to the tank after the set point has beenachieved. Please note that running the pump for a time greater than 5 minutes may cause tank energy to bereleased back to the heat exchanger. Factory Default of 0 Minutes. (Range: 0 – 10 minutes)Warm Weather ShutoffNot applicable on this product.Min Outdoor TempNot applicable on this product.Max Supply TempNot applicable on this product.Max Outdoor TempNot applicable on this product.Min Supply TempNot applicable on this product.Min Heater TempNot applicable on this product.CH Post Pump TimeNot applicable on this product.DHW PriorityNot applicable on this product.Cascade AddressBus addressing heaters (maximum heaters allowed 8 in a cascade system). Master Heater address is 0 andFollowing Heaters are addressed 1 thru 7. Default: 0 (Range: 0 – 8). NOTE: DO NOT USE ADDRESS 8.Optional InputsAllows the user to select from optional inputs to control or monitor the system. Default: RETURN (Range: Off /Booster Board / 0-10 Volt / DHW Sensor / Return Sen).0-10 Volt FunctionAllows the user to control heater modulation through temperature control. Factory Default = Temperature(Temperature only on VWH).Step Modulation ModeNot applicable on this product.Heater DHW TempNot applicable on this product.Water Safety InputThe user can select various water safety inputs used in the heater system. Default: Flow Switch (Range: None / LowWater Cut off / Flow Switch / Water Pressure).LP- 429 REV. 6.6.13
Page 1 and 2: Mod Con VWHINSTALLATIONSTART-UPMAIN
Page 3 and 4: 3The following defined terms are us
Page 5 and 6: 5D. CIRCULATOR PUMPS ..............
Page 7 and 8: 7DO NOT USE THIS APPLIANCE IF ANY P
Page 9 and 10: 9A. WHAT’S IN THE BOXAlso include
Page 12 and 13: 12D. CLEARANCES FOR SERVICE ACCESSS
Page 15 and 16: 7. Any improper operation of the co
Page 17 and 18: 17Never use dielectric unions or ga
Page 19 and 20: 19H. WATER CHEMISTRYChemical imbala
Page 21 and 22: 21I. PIPING DIAGRAMSFigure 5 - Pipi
Page 23 and 24: 23Figure 7 NOTES:1. This drawing is
Page 25 and 26: 25ItemExhaust vent or Intake pipean
Page 27 and 28: 27NOTE: Due to potential moisture b
Page 29 and 30: 29When installing a condensate pump
Page 31 and 32: 31I. SIDEWALL VENTING DIAGRAMSFigur
Page 34 and 35: 34Under no circumstances should the
Page 36 and 37: 36D. CHECK INLET GAS PRESSUREThe ga
Page 38 and 39: 38Figure 19 - Mod Con 1700 Gas Valv
Page 40 and 41: 40use of a pipe sensor will be some
Page 42 and 43: 42Figure 21Figure 22 - Cascade Resi
Page 44 and 45: 44Figure 23 - Mod Con VWH Cascade M
Page 46 and 47: 46PART 8 - START-UP PREPARATIONA. C
Page 48 and 49: 48Additional Connected Mod Con 1000
Page 52 and 53: Function 21Error Outdoor SensorERRO
Page 54 and 55: 54The following 10 screens display
Page 56 and 57: 56PART 11 - TROUBLESHOOTINGA. HEATE
Page 58 and 59: 58Fault Code F01FLUE TEMP/WAT LV F0
Page 60 and 61: 60Fault Code F15APS OPEN F15 Flappe
Page 62 and 63: 62PART 12 - MAINTENANCEIn unusually
Page 64 and 65: 64Figure 26 - MOD CON 1000 External
Page 66 and 67: 66Figure 28LP- 429 REV. 6.6.13
Page 68 and 69: 68Figure 30LP- 429 REV. 6.6.13
Page 70 and 71: 70BOILER START-UP REPORTLIGHT OFF A
Page 72 and 73: 72LP- 429 REV. 6.6.13
Page 74 and 75: 74MAINTENANCE NOTESLP- 429 REV. 6.6

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