Crown Boiler BWF Series Supplement Manual

Crown Boiler BWF Series Supplement Manual

For boilers equipped with honeywell s9361a “integrated boiler control”

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BWF/CWD Series
gas-Fired induced Draft Hot Water Boilers
inStallation Supplement For BoilerS
equippeD WitH HoneyWell S9361a
"integrateD Boiler Control"
These instructions must be affixed on or adjacent to the boiler
Warning: Improper installation,
adjustment, alteration, service or
maintenance can cause property
damage, injury, or loss of life.
For assistance or additional
information, consult a qualified
installer, service agency or
the gas supplier. Read these
instructions carefully before
installing.
D
E S I G N E D
Manufacturer of Hydronic Heating Products
P.O. Box 14818 3633 I. Street
Philadelphia, PA 19134
www.crownboiler.com
L
T O
E A D

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Summary of Contents for Crown Boiler BWF Series

  • Page 1 E S I G N E D E A D BWF/CWD Series gas-Fired induced Draft Hot Water Boilers inStallation Supplement For BoilerS equippeD WitH HoneyWell S9361a “integrateD Boiler Control” These instructions must be affixed on or adjacent to the boiler Warning: Improper installation, adjustment, alteration, service or maintenance can cause property...
  • Page 3: I Basic Information

    I Basic Information A. What is this Supplement For? This instruction manual supplement provides important information on the installation and operation of BWF and CWD boil- ers equipped with a S9361A control like that shown in Figure 1.0 below. The S9361A is being used in place of the control system described in the manual supplied with this boiler in order to comply with the 2007 Energy Independence and Security Act (EISA).
  • Page 4 Section IX Wiring WARNING • All wiring And grounding must be done in AccordAnce with the Authority hAving jurisdiction or, in the Absence of such requirements, with the nAtionAl electricAl code (Ansi/nfPA 70) . • disconnect electricAl Power to the boiler And heAting system before servicing.
  • Page 5 • Do not attempt to use EnviraCOM connections for any purpose not explicitly permitted by Crown Boiler Company. Attempting to do so may result in unreliable operation and/or damage to controls.
  • Page 6 FIGURE 9.2: INTERNAL CONNECTIONS DIAGRAM...
  • Page 7 FIGURE 9.3: LADDER DIAGRAM...
  • Page 8: General Information

    Xb Operation A. General Information This boiler uses a proprietary version of the Honeywell S9361A “integrated boiler control” to manage all boiler functions including flame supervision, temperature control, and circulator operation. This control can operate one or two circulator zones without the use of additional relays.
  • Page 9: Status Mode

    FIGURE 10b.1: BOILER CONTROL MENU STATUS MODE: =Current Status (Table 10b.2) Press and Hold I, ↑, and ↓ for at least 3 Press I to enter OPERATING MODE sec to enter ADJUSTMENT MODE    = Current Boiler Temp. = High Limit Setting   = Current Set Point  = Limit Differential   = High Limit Setting  =Circulator Overrun    = Limit Differential  =Thermal Purge Time   =Call for Heat? (On/Off)  =Thermal Purge Temp   =Call for DHW? (On/Off)  =DHW Priority (ON/OFF)    =Flame Signal (uA)   =Use of 2 Zone   =Total Run Time (hrs) =Reset =total burner Cycles =Temperature Units    =Return to Status Mode Boiler in ...
  • Page 10 Adjustment mode. LWCO open (if LWCO kit PN 761000 installed), limit jumper plug missing, or flame Waiting for limit to close rollout switch open (BWF series only) Flame Present out of A flame was detected when none should have been present.
  • Page 11 TABLE 10b.4: OPERATING MODE PARAMETERS Parameter # Description Meaning Boiler Temperature Current boiler water temperature measured by the control’s sensor. Current target temperature (always the same as the high limit setting unless Boiler water set point Crown outdoor reset card option is installed). Boiler will stop firing if boiler water temperature exceeds this value (Circulator/s High Limit Set point will continue to operate)
  • Page 12 C. Using Adjustment Mode WARNING Improper adjustments to control parameters could result in unreliable boiler operation, property damage, personal injury, or loss of life. Adjustments should only be made by a qualified heating technician. A list of parameters which can be changed on this control are shown in Table 10b.5. To enter Adjustment mode and change parameters: Press and hold I, ↑, ↓...
  • Page 13 TABLE 10b.6: EXAMPLES OF THERMAL PURGE OPERATION Thermal Purge Settings Boiler Call for Temp at Example Heat Use of Start Temp Begin From DHW Zone Time (Pt) (St) Call Boiler Behavior • Heating Circulator starts 2 min. 140F immediately • Burner fires immediately •...
  • Page 14: Thermostat Inputs

    F-C (Temperature Units ) - Determines whether temperature units on the S9361A are displayed in F or C. Note that this selection only applies to the temperature displayed on the LED shown in Figure 10b.0. Temperature units must be selected independently on the displays of any control options plugged into Option Plugs 1 or 2.
  • Page 15 (see Parts Section of boiler installation manual). Flame Roll-out Switch (BWF series only) - Automatically interrupts boiler operation when flames or excessive heat are present in vestibule. The flame roll-out switch is a single use device which must be replaced by an identical switch in order to restore normal operation.
  • Page 16: Before Troubleshooting

    XIII Troubleshooting A. Before Troubleshooting The following pages contain trouble shooting tables for use in diagnosing control problems. When using these tables the following should be kept in mind: This information is only meant to be used by a professional heating technician as an aid in diagnosing boiler problems. Where applicable, follow all precautions outlined in the Section X (Start-up and Checkout) of the boiler installation manual.
  • Page 17: Error Code Meaning

    TABLE 13.0: ERROR CODES Error Code Meaning Possible Cause • Jumped air pressure switch Pressure Switch failed to open • Condensate in air pressure switch or switch tubing • Defective air pressure switch • Low gas pressure at gas valve inlet •...
  • Page 18 TABLE 13.1: FAULTS WITHOUT ERROR CODE PRESENT Displayed Codes Problem Possible Cause • Thermostat/s not calling for heat StA 1 Burners and • Loose connection in thermostat, zone valve end switch, or zone panel wiring. tt OFF Circulator Off • Thermostat, zone valve, or zone panel miswired dh OFF •...
  • Page 19 XIII PARTS The following parts may be obtained from any Crown distributor. To find the closest Crown distributor, consult the area Crown representative or the factory at: Crown Boiler Co. Customer Service P.O. Box 14818 Philadelphia Pa. 19134 www.crownboiler.com Consult installation manual supplied with the boiler for a complete list of boiler parts.
  • Page 20 PARTS UNIQUE TO BWF SERIES BOILERS EQUIPPED WITH S9361A CONTROL SYSTEM QUANTITY PER BOILER OR CROWN PART NUMBER QTY. OR DESCRIPTION CROWN PN BWF061 BWF095 BWF128 BWF162 BWF195 BWF229 INTEGRATED BOILER CONTROL (INDUCED DRAFT) 3505065 1 EA 1 EA 1 EA...
  • Page 24 Manufacturer of Hydronic Heating Products P.O. Box 14818 3633 I. Street Philadelphia, PA 19134 www.crownboiler.com PN 980650 Rev 0, 6/12...

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