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i.  Operation

1. Entering Adjust Mode

  The Control is factory programmed 

to include basic modulating boiler 

functionality. These settings are password 

protected to discourage unauthorized or 

accidental changes to settings.  User login is 

required to view or adjust these settings:

-  Press the “Adjust” button on the “Home” 

screen.

-  Press the “Adjust” button on the Adjust 

Mode screen or Press “Service Contact” 

for service provider contact information.

-  Press “Login” button to access password 

screen.

-  Press 5-digit display to open a keypad.  

Enter the password (Installer Password 

is 86) and press the return arrow to close 

the keypad. Press the “Save” button.

-  Press the “Adjust” button to enter 

Adjustment mode.

F.  Changing Adjustable Parameters

Figure 5:  adjust Mode Screens

2. Adjusting Parameters

  Editing parameters is accomplished as follows:

Содержание K2

Страница 1: ...agency or the gas supplier This boiler requires a special venting system Read these instructions carefully before installing 9700609 As an ENERGY STAR Partner U S Boiler Company has determined that th...

Страница 2: ...ttp license reg state ma us pubLic pl_products pb_pre_form asp for the latest Approval Code or ask your local Sales Representative The Commonwealth of Massachusetts requires this product to be install...

Страница 3: ...f damage due to frozen pipes is a possibility the heating system should not be left unattended in cold weather or appropriate safeguards and alarms should be installed on the heating system to prevent...

Страница 4: ...4 105337 03 5 15 Table of Contents I Operation 5 II Troubleshooting 33...

Страница 5: ...r can be configured to start a lag boiler after operating at 50 modulation rate for longer than an adjustable time The boilers are modulated in unison parallel modulation rate to ensure even heat dist...

Страница 6: ...or is automatically adjusted as a thermostat s sleep or Away Modes or Outdoor Air Reset 5 Outdoor Air Reset Ifanoutdoortemperaturesensorisconnectedtotheboiler and Outdoor Reset is enabled the Central...

Страница 7: ...he boiler will shut down and an open limit indication and error code are provided If the limit installed is a manual reset type it will need to be reset before the boiler will operate 5 Boiler Mounted...

Страница 8: ...6 Multiple Demands TheSequenceMasterrespondstoCentralHeat Auxiliary Heat DHW and frost protection demands similar to the standaloneboiler Forexample whenselectedandDHW priorityisactive thesequencemast...

Страница 9: ...ce continues with run stabilization and low fire hold time Once the field adjustable low fire hold time is completed normal boiler operation begins modulation rate depending on temperature and setpoin...

Страница 10: ...e symbol returns to the display to previous menu or screen Repeatedly pressing the Close symbol will always return the display to the Home screen Arrow Symbol The Arrow symbol links together all scree...

Страница 11: ...boiler protection logic the 6 symbol blinks and becomes a screen link Rate The rate value is equal to the actual kbtu hr input divided by the boiler rated input Priority The selected Priority is shown...

Страница 12: ...mance For example studying a differential temperature trend may indicate pump speed settings need to be changed Trend Screens NOTE Firing Rate Trend shows fan demand and feedback Burner Status Screen...

Страница 13: ...ld zone number with a solid underscore Press the zone control button to view individual zone Zone Panel 1 typical for 2 through 4 Zone panel screens show individual zone status cycle counts and indivi...

Страница 14: ...Domestic Hot Water Frost Protection or Warm Weather Shutdown The Sequencer Status screen is selected by pressing Status button from the Home screen when Sequence Master is enabled The Networked Boiler...

Страница 15: ...n on the Home screen Press the Adjust button on the Adjust Mode screen or Press Service Contact for service provider contact information Press Login button to access password screen Press 5 digit disp...

Страница 16: ...trol s measurement matching the reference reading Not Connected Connected Not Connected Zone Control Status Connected When the Zone Control is connected adjustable settings are automatically shown und...

Страница 17: ...Expected Heat Rate This parameter defines the highest modulation rate the Control will go to during a Domestic Hot Water call for heat If the rated input of the indirect water heater is less than the...

Страница 18: ...565 7620 6984 7200 7150 Minimum Light off RPM 3500 3500 3500 3500 3500 Maximum Light off rate RPM 4000 4000 4000 4000 4000 Altitude 4501 7800 Ft Parameter K2 80 57 K2 100 57 K2 120 57 K2 150 57 K2 180...

Страница 19: ...pected Heat Rate Adjustment Screens HeatMatch Software Figure 6 Four Zone House with Zone Control Connected Figure 7 Expected Heat Rate Adjustment with Zone Control Connected Example call for heat dur...

Страница 20: ...Demand Any Demand Header Sensor Demand Boiler Pump run pump for Activates the boiler pump output according to selected function Any Demand Pump Runs during any call for heat Header Sensor Demand Pump...

Страница 21: ...djustable Parameters continued Single boiler Indirect Water Heater IWH Piped to Primary Optional Domestic Hot Water Priority Sequencer Master Boiler 1 Boiler 2 Wiring locations Thermostat X DHW call f...

Страница 22: ...optional It is permissible for the domestic and system pumps to run at the same time The boiler pump must run for every call for heat I Operation F Changing Adjustable Parameters continued Example Pum...

Страница 23: ...reen without Saving Clear Entire Field Backspace Save Field and Exit Save Press box to input contractor information Contractor Name i Bill Smith 1 7 6 5 4 3 2 A ES C D C B 8 CL R 7 BS 8 Enter Contract...

Страница 24: ...is 180 F the maximum Diff Above is 20 F Further if the setpoint is 190 F the maximum Diff Above is 10 F 5 F 2 8 C 2 F to 25 F 1 1 C to 14 C Central Heat Diff Below The boiler starts when the water tem...

Страница 25: ...at temperature controller Proportion Integral Derivative PID values Higher values cause a larger firing rate change for each degree of temperature change If set too high firing rate overshoots require...

Страница 26: ...the temperature to exceed the Diff Above setpoint and cycle the boiler unnecessarily Lower values cause a smaller firing rate change for each degree of temperature change If set too low the firing rat...

Страница 27: ...the coldest outdoor temperature 70 F 21 1 C 32 F to 100 F 0 C to 37 8 C Central Heat High Outdoor Temperature The High Outdoor Temperature parameter is the outdoor temperature at which the Low Boiler...

Страница 28: ...C Auxiliary Heat Low Outdoor Temperature The Low Outdoor Temperature parameter is also called Outdoor Design Temperature This parameter is the outdoor temperature used in the heat loss calculation It...

Страница 29: ...8 C Fan Coil 100 F to 140 F 37 8 C to 60 C In Slab Radiant High Mass Radiant 160 F to 190 F 71 1 C to 87 8 C Convection Baseboard Fin Tube Convective 130 F to 160 F 54 4 C to 71 1 C Staple up Radiant...

Страница 30: ...nd to rapid load increases 70 50 100 Base Load Common Rate To maximize condensing boiler efficiency the firing rate is limited to an adjustable value Boilers are kept at or below this firing rate as l...

Страница 31: ...tral Heat 3 User defined Zone Control 2 Zone 3 Central Heat 4 User defined Zone Control 2 Zone 4 Central Heat 1 User defined Zone Control 3 Zone 1 Central Heat 2 User defined Zone Control 3 Zone 2 Cen...

Страница 32: ...10 is used as the temperature setpoint The following two parameters may be used to adjust the signal range Modbus Modbus is used as the temperature setpoint 130 F 54 4 C 80 F 26 7 C Central Heat Setp...

Страница 33: ...Help button flashes and the home screen turns a red color Continue to select flashing buttons to be directed to the Fault cause B Display Faults Indication Condition Possible Cause Display Completely...

Страница 34: ...itch settings have changed Set Master Slave switch to Master Set Zone Control switch ZC1 to ON Cycle power Zone Panel Electronics Failure A Zone Panel Duplicate Zone The Control has detected duplicate...

Страница 35: ...Limit The following messages appear when the firing rate is limited or reduced to help avoid a lockout or save energy Refer to Hard Lockout section for corrective actions High Stack Temperature Limit...

Страница 36: ...only the time the pressure switch is open 3 Boiler Safety Limit Open Boiler Safety Limit or External Limit wired to terminals J5 1 OPEN Jumper for External Limit wired to terminals 11 and 12 or devic...

Страница 37: ...s purged of air and that appropriate valves are open Sensor wiring reversed Supply or return sensor defective 16 Supply temp has risen too quickly Supply water temperature has risen too quickly See po...

Страница 38: ...not being detected by Sage2 2 Loose connection in 120 VAC blower wiring Loose or miswired blower speed harness Defective blower 19 Purge rate proving failed Blower is not running at Purge rate when it...

Страница 39: ...39 105337 03 5 15...

Страница 40: ...40 105337 03 5 15 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net...

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