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Bryan Boilers Triple-Flex 150 Installation And Operating Service Manual

Triple-flex high efficiency boilers
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Bryan Steam LLC
Installation and Operating Service Manual
Triple-Flex
High Efficiency Boilers
Date:
8-4-2010
Revision:
0
Form:
2396

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  • Page 1 Date: 8-4-2010 Revision: Form: 2396 Bryan Steam LLC Installation and Operating Service Manual Triple-Flex High Efficiency Boilers...

  • Page 2: Bryan Steam Llc

    Date: 8-4-2010 Revision: Form: 2396 INSTALLATION AND OPERATION SERVICE MANUAL Triple-Flex 150, 200, 250, & 300 High Efficiency Boilers Bryan Steam LLC 783 North Chili Avenue * Peru, IN 46970 Phone 765.473.6651 • Fax 765.473.3074 E-mail: inquiry@bryansteam.com Internet: www.bryanboilers.com...

  • Page 3: Table Of Contents

    Date: 8-4-2010 Revision: Form: 2396 Table of Contents Bryan Steam LLC ..........................i Installation and Operating Service Manual..................i Table of Contents ..........................iii Tables ...............................v Figures..............................v Section 1 Installation Instructions– Triple-Flex High Efficiency Boilers........... 1 1.1 Boiler Foundation........................2 1.2 Clearances ..........................2 1.2.1 Minimum Clearances to Combustible Surfaces...............
  • Page 4 Date: 8-4-2010 Revision: Form: 2396 2.2.11 Operation Page ......................22 2.2.12 Annunciation Page....................... 23 2.2.13 Modulation Configuration ..................... 23 2.2.14 Firing Rate Control Page ..................... 23 2.2.15 Advanced Setup......................24 2.2.16 System Time ........................ 24 2.2.17 Calibrate Touch Screen ....................24 2.2.18 Reset / Reboot Display ....................
  • Page 5 Date: 8-4-2010 Revision: Form: 2396 Tables Table 1 Minimum Clearance......................2 Table 2 Electrical Requirements...................... 4 Table 3 Boiler Draft.......................... 7 Table 4 Water Flow Switch Settings....................14 Table 5 Gas Limiting Orifice Rough Settings ................15 Table 6 Sound Pressure Readings....................28 Table 7 Modbus Terminals ......................

  • Page 6: Revision

    Date: 8-4-2010 Revision: Form: 2396 Figure 35 Outdoor Reset Sensor Configuration ................26 Figure 36 Air / Gas Ratio Tappings ....................35 Figure 37 LL / Multi-Boiler Field Wiring ..................58...

  • Page 7: Section 1 Installation Instructions-Triple-Flex High Efficiency Boilers

    Date: 8-4-2010 Revision: Form: 2396 Section 1 Installation Instructions– Triple-Flex High Efficiency Boilers...

  • Page 8: Boiler Foundation

    Date: 8-4-2010 Revision: Form: 2396 1.2.1 M Note: INIMUM LEARANCES TO Please read and save for future reference the OMBUSTIBLE URFACES entire instruction manual before attempting installation of or starting the unit. Insurance and local or state regulatory codes may contain additional or more stringent requirements than those contained in this manual.

  • Page 9: Boiler Connections

    Date: 8-4-2010 Revision: Form: 2396 BE REMOVED after the boiler is set in-place on 1.4.5 C ONDENSATE RAIN concrete foundation before ONNECTION piping/electrical connections are made. It is recommended that the plastic protective cover be left on as long as possible to reduce finish A 1”...

  • Page 10: Venting Of Gas Train Components

    Date: 8-4-2010 Revision: Form: 2396 valve shall be tested for leaks. Model TF300/250 TF200/150 200 V – 240 V / 60 Hz / 3 Ph Blower Motor 3 (4.02) 1.4.9 V KW (HP) ENTING RAIN Full Load OMPONENTS 15.6 Amps Service Fuse (3) 20 Amp 400 V –...

  • Page 11: Combustion Air Openings

    Date: 8-4-2010 Revision: Form: 2396 interlocked with the boiler to prevent boiler One Permanent Opening Method operation if the dampers are closed. One opening commencing within 12” of the top Combustion air openings must never be blocked of the room shall be provided. The opening or obstructed in any manner.

  • Page 12: Flue Gas Venting System

    Date: 8-4-2010 Revision: Form: 2396 specified. Where the louver and grille design BOCA, National Mechanical Code and free area are not know, it shall be assumed that wood louvers have a 25 percent free area, WARNING: and met louvers and grilles have 75 percent free area.

  • Page 13: Combustion Air And Venting Requirements For Canada

    Date: 8-4-2010 Revision: Form: 2396 Horizontal sections of the flue vent system must Note: be pitched back towards the boiler at ¼ inch per An existing masonry chimney may be utilized foot to avoid condensate pooling and allow for PROVIDING that the existing chimney is lined proper drainage.

  • Page 14: Marking Of Gas Vents

    Date: 8-4-2010 Revision: Form: 2396 shaft used for return air, hot air, Combustion Air Supply Dampers, Louvers, ventilating air, or combustion air. and Grilles • An appliance that operates at a positive vent pressure shall not be connected to The free area of the combustion air supply a venting system serving any other opening shall be calculated by subtracting the appliance.

  • Page 15: Hydrostatic Test Of Boilers And System

    Date: 8-4-2010 Revision: Form: 2396 1.8.1 H YDROSTATIC OILERS YSTEM After completing boiler burner installation, the boiler connections, fittings, attachments and adjacent piping must be inspected for leaks by filling the unit with water. The pressure should be gradually increased to a pressure just below the setting of boiler safety relief valve(s).

  • Page 16: Section 2 Start-Up And Operation Triple-Flex High Efficiency Boilers

    Date: 8-4-2010 Revision: Form: 2396 Section 2 Start-Up and Operation Triple-Flex High Efficiency Boilers...

  • Page 17: Boiler Assembly

    Date: 8-4-2010 Revision: Form: 2396 2.1.1 T RIPLE RONT WARNING: Improper servicing and start-up of this equipment may create a potential hazard to equipment, operators, or persons in the building. Only fully trained and qualified personnel should do servicing and start-up.

  • Page 18: Triple-Flex Rear View

    Date: 8-4-2010 Revision: Form: 2396 the touch panel display. There is a soft 2.1.2 T RIPLE switch (paragraph 2.2.11) provided with the SOLA hydronic control that will put the boiler into standby for an indefinite period of time. WARNING: The boiler on / off switch will not turn off the 3 phase high voltage power to the motor.

  • Page 19: Triple-Flex Left Side View

    Date: 8-4-2010 Revision: Form: 2396 1. Main gas inlet connection. This connection 2.1.3 T RIPLE is a 2” male national pipe thread. 2. Condensate Drain Connection. This connection is a 1” male national pipe thread. For installation details refer to paragraph 1.4.5.

  • Page 20: Table 4 Water Flow Switch Settings

    Date: 8-4-2010 Revision: Form: 2396 port is also used to record the furnace pressure. NOTE: 15. Boiler water flow switch. The boiler water The low fire displacement final adjustment flow switch adjustable within should be made at low fire only. parameters listed in the table.

  • Page 21: Pilot Spark Igniter Assembly

    Date: 8-4-2010 Revision: Form: 2396 block. 2.1.6 P ILOT PARK GNITER 21. Control circuit transformer. SSEMBLY 22. 24 volt ac transformer. 23. 12 volt dc power supply. 24. SOLA hydronic and flame supervision control. 25. Repeat cycle timer. This timer will ensure that a forced shut down and pre-start safety check is performed at least once in a 24 hour...

  • Page 22: Triple-Flex Right Flue Collector View

    Date: 8-4-2010 Revision: Form: 2396 Actual length and width are 3⁄8” less than 2.2.2 H trade size shown. Filters meet UL Class 2 flame retardance requirements. Maximum Make sure a screen similar to Figure 12 appears temperature is 180° F. after the system is completely powered up.

  • Page 23: Page Navigation

    Date: 8-4-2010 Revision: Form: 2396 2.2.4 K NOTE: EYBOARD The boiler name may be cut off on the Home page when all boilers are present for the hydronic system. The Home page also includes a System Analysis button that allows the user to view status information on a system-wide (that is, multiple boiler) basis.

  • Page 24: Status Page

    Date: 8-4-2010 Revision: Form: 2396 2.2.5 S TATUS Details: Used to view boiler detail status information. ► History: Used to view R7910 history. Modulation: Used to toggle between two different status displays: modulation, and setpoints. 2.2.6 C ONFIGURATION ► ►CONFIGURE Figure 14 Status Page The status page (Figure 14) is displayed when a boiler is selected on the Home page.

  • Page 25: Configuration Password

    Date: 8-4-2010 Revision: Form: 2396 applicable for the functional group on the page for a parameter that has a lower access level (Figure 16). than the access level achieved by an earlier password entry for any configuration group (as long as the user stays in the configuration pages).

  • Page 26: Change Parameter Settings

    Date: 8-4-2010 Revision: Form: 2396 validates all password entry attempts with the There are two classes of parameters. boiler, but doesn’t conduct the validation itself. The boiler has sole responsibility to accept a Non-safety parameters can be Non-Safety: password entry. changed without placing the boiler in a dangerous state.

  • Page 27: Fault/Alarm Handling

    Date: 8-4-2010 Revision: Form: 2396 A verification step is required for each safety After all safety parameter blocks have been parameter block that is changed. The verification confirmed, the user is asked to press and hold steps do not have to be completed immediately; the reset button, (Figure 3 item 7), on the boiler the user can traverse between parameter to complete the safety configuration session...

  • Page 28: Operation Page

    Date: 8-4-2010 Revision: Form: 2396 button turns red (Figure 22). On all other pages Figure 23 History Dialog and when the user is looking at a different boiler, The lockout history can be displayed for each a notification dialog box displays indicating boiler.

  • Page 29: Annunciation Page

    Date: 8-4-2010 Revision: Form: 2396 annunciation information, and switch between 2.2.13 M ODULATION ONFIGURATION heating loops (Central Heat and Domestic Hot Water), as shown in Figure 25. If a password is required to change any of the settings on this ►...

  • Page 30: Advanced Setup

    Date: 8-4-2010 Revision: Form: 2396 the user to manually control the firing rate while 2.2.16 S YSTEM the boiler is firing. The third option can be selected to change the rpm of the blower while the boiler is off or in standby. The manual firing ►...

  • Page 31: Reset / Reboot Display

    Date: 8-4-2010 Revision: Form: 2396 calibrated. When the screen is touched in a 2.2.19 O UTDOOR ESET spot and unexpected results occur this is a good indication that display needs calibrated. To calibrate the touch screen select ► ► CONFIGURE the ‘Calibrate’...

  • Page 32: Remote Setpoint (4 - 20 Ma)

    Date: 8-4-2010 Revision: Form: 2396 (Figure 34). The normal reset curve is shown in ► ► CONFIGURE green and the time of day is red. ► CH - CENTRAL HEAT CONFIGURATION ► (page) CENTRAL HEAT ► (Outdoor Reset) ENABLED Note: y1 is the maximum water setpoint value found in ‘CH –...

  • Page 33: Central Heat Configuration

    Date: 8-4-2010 Revision: Form: 2396 Setpoint source Local 2.2.21 C ENTRAL S2 (J8-6) 4-20mA ONFIGURATION Setpoint Setpoint for normal Central Heat modulation: 50 °F to 190 °F Time of day setpoint Setpoint when Time Of ► ► CONFIGURE Day switch is on. 50 °F to 190 °F ►...

  • Page 34: Table 6 Sound Pressure Readings

    Date: 8-4-2010 Revision: Form: 2396 Decibel Readings Tube Right Model Front Rear Side Side TF150 55.5 58.0 59.5 58.5 TF200 62.1 65.1 66.3 65.4 TF250 77.7 82.8 82.7 82.8 TF300 77.7 82.8 82.7 82.8 Table 6 Sound Pressure Readings...

  • Page 35: Modbus Communication

    Date: 8-4-2010 Revision: Form: 2396 Annunciation configuration 2.2.23 M restored from backup ODBUS OMMUNICATION Safety group verification table was restored from factory defaults The hydronic control Global Modbus port is a 3- Safety group verification table was pin connector that interfaces to the following RS- updated 485 signals: Invalid Parameter PCB was detected...
  • Page 36 Date: 8-4-2010 Revision: Form: 2396 Illegal Modbus read was attempted Slow start was end due to reference setpoint fault Safety processor brown-out reset occurred CH max modulation rate was invalid, Application processor watchdog reset % vs. RPM occurred CH max modulation rate was > absolute max rate Application processor brown-out reset occurred...
  • Page 37 Date: 8-4-2010 Revision: Form: 2396 Slow start ramp setting of zero will Lead Lag master was suspended due result in no modulation rate change to fault RESERVED Lead Lag slave was suspended due CH demand source was invalid to fault Lead Lag header temperature was CH P-gain was invalid invalid...
  • Page 38 Date: 8-4-2010 Revision: Form: 2396 263- Abnormal Recycle: Interrupted air RESERVED flow switch was off during Measured Purge Time Abnormal Recycle: Pressure sensor fault Abnormal Recycle: Interrupted air flow switch was off during Drive to Abnormal Recycle: Safety relay drive Lightoff Rate test failed Abnormal Recycle: Interrupted air...
  • Page 39 Date: 8-4-2010 Revision: Form: 2396 Abnormal Recycle: Safety Relay off Abnormal Recycle: Hardware HFS after 10 seconds of RUN LFS shorted Abnormal Recycle: Hardware flame Abnormal Recycle: Invalid zero bias crossing Abnormal Recycle: Hardware static Abnormal Recycle: fault stack sensor flame Abnormal Recycle: stack limit Abnormal Recycle: Hardware flame...
  • Page 40 Date: 8-4-2010 Revision: Form: 2396 Internal error: EEPROM days count Internal error: Safety timer address was invalid corrupt Internal error: EEPROM hours count Internal error: Safety timer address was invalid expired Internal error: Lockout record Internal error: Safety timings EEPROM index was invalid Internal error: Safety shutdown Internal error: Request to write PM status was invalid...

  • Page 41: Boiler Commissioning

    Date: 8-4-2010 Revision: Form: 2396 The regulating gas valve is a 1:1 differential 2.3 B pressure air / gas ratio controller. This means OILER OMMISSIONING that the control adjusts the same pressure difference on the gas side as it senses on the NOTE: airside.

  • Page 42: Dry Run

    Date: 8-4-2010 Revision: Form: 2396 seconds the purge timer will start and count to WARNING: 30. After 30 seconds the fan speed is reduced to the light off rate. When the fan speed is with Do not open the manual main gas cock in +/- 3% of the firing rate for 3 seconds the ignition transformer and the pilot valve are (Figure 7 item 4) before all pre checks,...

  • Page 43: Initial Light Off

    Date: 8-4-2010 Revision: Form: 2396 for NOx, O2, and CO should be made at the WARNING: maximum firing rate. No further adjustments are required of the gas limiting orifice valve. Return During pilot adjustment leave the to the minimum low fire rate (paragraph 2.2.13) in increments of 500 rpm.

  • Page 44: Gas Meter Readings

    Date: 8-4-2010 Revision: Form: 2396 cubic feet per hour). Consult the National Fuel Gas Code (ANSI Z223.1, NFPA 54) or the local Manifold gas utility for further information. Refer to Table Pressure 10 for correction factors for the gas pressure at (IWC) the meter.

  • Page 45: Troubleshooting

    Date: 8-4-2010 Revision: Form: 2396 2.4 T ROUBLESHOOTING To support the recommended Troubleshooting, the R7910 has an Alert File. Review the Alert history for possible trends that may have been occurring prior to the actual lockout. Note Column: H = Hold message L = Lockout message H or L = either Hold or Lockout depending on Parameter Configuration Table 12 R7910A Lockout and Hold Codes...
  • Page 46 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code Internal fault: Safety relay test failed feedback ON Internal fault: Safety relay test failed due to safety relay OFF Internal fault: Safety relay test failed due to safety relay not OFF Internal fault:...
  • Page 47 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code 32-46 Internal fault: Safety through 14 Flame ground leakage Static flame (not flickering) 24VAC voltage low/ 1. Check the Module and display connections. high 2. Check the Module power supply and make sure that both frequency, voltage and VA meet the specifications.
  • Page 48 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code ILK ON This lockout occurs when the interlock string is closed before the blower starts. The airflow switch is the only device in the interlock string that will open when in standby. Probable causes are.
  • Page 49 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code 2. Replace the stack sensor. 3. If previous steps are correct and fault persists, replace the module Outdoor sensor 1. Check wiring and correct any possible errors. fault 2.
  • Page 50 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code Lightoff rate 1. Check wiring and correct any potential wiring errors. proving failed 2. Check VFDs ability to change speeds. Purge rate proving 3. Change the VFD 4.
  • Page 51 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code 1. Check wiring and correct any potential wiring errors. 2. Check High Fire Switch to assure proper function (not welded or jumpered). 3.Manually drive the motor to the High Fire position and adjust the HF switch while in this position and verify voltage through the switch to the HFS input with a voltmeter.
  • Page 52 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code Block intake OFF 1. Check wiring and correct any errors. 2. Inspect the Block Intake Switch to make sure it is working correctly. 3. Reset and sequence the module. 4.
  • Page 53 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code Invalid ignition source setting Invalid interlock open response setting Invalid interlock start check setting Invalid LCI enable setting Invalid lightoff rate setting Invalid lightoff rate proving setting Invalid Main Flame Establishing Period time setting...
  • Page 54 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code Invalid Stack limit response setting Unconfigured Delta limit setpoint setting Unconfigured DHW high limit setpoint setting Unconfigured Outlet high limit setpoint setting Unconfigured Stack limit setpoint setting Invalid demand source...
  • Page 55 Date: 8-4-2010 Revision: Form: 2396 Code Description Recommended Troubleshooting of Lockout Codes Code 241- RESERVED...

  • Page 56: Section 3 Care And Maintenance

    Date: 8-4-2010 Revision: Form: 2396 Section 3 Care and Maintenance...

  • Page 57: Cleaning The Boiler And System - New Systems

    Date: 8-4-2010 Revision: Form: 2396 important to keep these fumes from air intakes WARNING: that would distribute them throughout the building. The boiler area should be kept free of 3.1.2 B combustible materials, gasoline and ROCEDURE other flammable liquids. The boil out of the boiler and system is neither The boiler and venting system must be difficult nor expensive.

  • Page 58: Draining The System

    Date: 8-4-2010 Revision: Form: 2396 the tank. 3.1.3 D RAINING YSTEM Install a strainer in the boiler return piping. A clean neutral hot water system should not be drained, except for an emergency or when 3.3 B OILER ATER REATMENT unavoidable for servicing of equipment.

  • Page 59: External "Fire-Side" Cleaning

    Date: 8-4-2010 Revision: Form: 2396 not less than four times a year, and possibly WARNING: more frequently as the local water conditions may indicate. All water introduced into the boiler If soot or condensation is apparent, a should be softened and should include an oxygen scavenger like sodium sulfite.
  • Page 60 Date: 8-4-2010 Revision: Form: 2396 inspected at least annually. accumulation of soot or debris should be thoroughly cleaned out. 2. If the yearly inspection of the boiler tube surfaces reveals a build-up of soot (carbon), the tubes surfaces should be thoroughly brushed.

  • Page 61: Section 4 Lead Lag

    Date: 8-4-2010 Revision: Form: 2396 Section 4 Lead Lag...

  • Page 62: General Description Of The Lead Lag Application

    Date: 8-4-2010 Revision: Form: 2396 There are parameters that are available to set The LL master turns the first stage on and the features for Lead Lag. eventually turns the last stage off using the same criteria as for any modulation control loop. Many of the descriptions used are internal When the operating point reaches the Setpoint functions or tables.
  • Page 63 Date: 8-4-2010 Revision: Form: 2396 or drop a stage if the run-limiting is providing too three groups: "Use First", "Equalize Runtime", or much heat (for example if a stage is running at a "Use Last". If one or more Solas are in the "Use higher-than commanded rate due to anti- First"...

  • Page 64: System Wiring Hookup

    Date: 8-4-2010 Revision: Form: 2396 4.3 S YSTEM IRING OOKUP Figure 40 LL / Multi-Boiler Field Wiring...

  • Page 65: Lead-Lag Operation

    Date: 8-4-2010 Revision: Form: 2396 be used (a)Lead Outlet - Outlet temperature of the lead boiler will be used as the backup during 4.4 L firing (i) Slave Outlet Average - Average of the PERATION outlet temperatures of all slave boilers that are firing will be used as a backup (b) If the sensor This is a summary of the functional capability of chosen by the above parameter is faulty then...

  • Page 66: Slave Operation And Setup

    Date: 8-4-2010 Revision: Form: 2396 Baseload common (i) “BL” for baseload (ii)User diagram below: selection 0 – 100 % (d)Use existing timeout, Done button, and Next button functionality to Frost protection requests enter these parameters. (e)User selections will The frost protection in this status register will be be selected by MMI.

  • Page 67: Ll Master Operation And Setup

    Date: 8-4-2010 Revision: Form: 2396 algorithm. (Any Solas set to Use First will parameters that enable disable precede any that are set to Equalize Run time.) operation. If set to Use Last, then this burner will be used • Periodic data polling - The LL master uses only after all Use First and Equalize Runtime polling to discover new slave Sola devices and Solas have been brought online.

  • Page 68: Periodic Data Polling Messages

    Date: 8-4-2010 Revision: Form: 2396 off all slaves and enters an idle or standby discover what happened in a subsequent status condition. response). The LL master also sends this message to a slave that is OnLeave. (This ensures that if the slave is firing when it returns 4.7.2 P to LL master control, it will stay that way until the ERIODIC...
  • Page 69 Date: 8-4-2010 Revision: Form: 2396 momentary communication problems and to act INVALID RESPONSE OR NO RESPONSE these they excessive. • StatusReadFaultCounter: Used to tolerate When a Sola responds to a data poll with an momentary communication problems and to act improperly formatted message or it does not on these if they are excessive.
  • Page 70 Date: 8-4-2010 Revision: Form: 2396 New occurrences of CH demand is inhibited. LL CH DEMAND SWITCH: DISABLE, STAT, DHW demand is not affected. ENVIRONCOM REMOTE STAT The inputs that can function as the CH demand Frost protection switch are: STAT, EnvironCOM Remote Stat. If the CH demand switch value is Disable, the LL LL master frost protection is enabled with Frost master does not respond to CH demand.

  • Page 71: Master Active Service

    Date: 8-4-2010 Revision: Form: 2396 following sources of demand. All sources that These are used to detect turn-on and turn-off are currently calling for heat will be true (multiple conditions. The difference between operating items may be true at the same time) except point and setpoint determines the LL master's when WWSD is active, then CH demand is firing rate...

  • Page 72: Demand And Rate

    Date: 8-4-2010 Revision: Form: 2396 that way until the 4- 20mA signal is stable again. None • LL CH ODR boost step: degrees or None 20MA WATER TEMPERATURE: • LL CH ODR boost recovery step time:mm:ss or TEMPERATURE OR NONE None WATER TEMPERATURE:...

  • Page 73: Rate Adjustment

    Date: 8-4-2010 Revision: Form: 2396 algorithms are used. Additionally: of step 1 are no longer true (demand has decreased) then it clears the flag. Whenever the rate allocator completes an 4.7.7 R execution pass and detects both conditions of DJUSTMENT step 1 are true, and it also detects that the total rate potentially absorbed by the system (the commands have not yet been sent) has...

  • Page 74: Rate Allocation

    Date: 8-4-2010 Revision: Form: 2396 Lead Lag burner demand will be present when each slave. Some rate allocation algorithms may Frost protection burner demand is true, as specify the use of this parameter, and that the described in the section on Frost protection. For slave base load settings are ignored.
  • Page 75 Date: 8-4-2010 Revision: Form: 2396 the LL master is not asking for less heat than For the Parallel common-base limited the this, then the underflow rate is 0%. If it is at this minimum modulation rate provides the underflow location and the LL master is asking for 10% threshold.

  • Page 76: Burner Demand

    Date: 8-4-2010 Revision: Form: 2396 4.7.10 B URNER EMAND If so then the stager: Changes the SlaveState to Suspend- Stage, resets starts StagerTimer, sets the StagerTimeLimit to The stager checks the Master’s LL burner T_StagerSuspend. This allows additional time demand. If this demand is off all slaves with for the slave to reach its firing condition.
  • Page 77 Date: 8-4-2010 Revision: Form: 2396 Stager can execute an AddStage or DropStage amount greater than or equal to Add-stage request. error threshold Add Stage Methods When the Add-stage condition is false then AddStage- DetectTimerN is set to zero. (If the Various methods can be used to determine condition is true then AddStageDetectTimerN when a new stage should be added.
  • Page 78 Date: 8-4-2010 Revision: Form: 2396 that: DropStageDetectTimerN is set to zero. (If the Drop-Stage detection time used with condition is true then DropStageDetectTimerN DropStageDetectTimer is not zeroed and thus allowed to run.) If this descriptions below, relevant timer reaches or exceeds Dropstage detection parameter is referred to as LL –...

  • Page 79: Lead Drop-Stage On Error - Ldse

    Date: 8-4-2010 Revision: Form: 2396 hysteresis is ignored if one or more lag boilers modulation rate. When LDSE is enabled and the are firing. lead is firing solo, then simply reaching the drop- • If LDSE is enabled: stage threshold causes a dropstage event that The Burner Off threshold provided by LL off causes the lead to turn off and which thus...
  • Page 80 Date: 8-4-2010 Revision: Form: 2396 assigning an ordering number and that the a sequence number greater than this number is lowest numbers are the first to be added. used, or • Any Available slaves that have a mode of Use —...
  • Page 81 Date: 8-4-2010 Revision: Form: 2396 StagingOrder numbers of all Firing boilers. If 3 will be first if there is no 1 or 2. only one Firing boiler is found, or none are found, then this selection function returns a NOTE: For Equalize Runtime purposes, 1 does value that indicates no boiler may be dropped.

This manual is also suitable for:

Triple-flex 200Triple-flex 250Triple-flex 300

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