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2

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.  Positively Assure thAt no voltAge is Present.  lock electricAl 
boxes to Prevent someone from inAdvertently restoring Power before 
the heAting system is sAfe to oPerAte.
never defeAt or jumP out sAfety devices.

• 

Protect eAch boiler circuit with A ProPerly sized over-current 

• 

Protection device.
mAke electricAl connections cArefully According to the boiler’s wiring 

• 

diAgrAm And instructions.
wire AdditionAl field suPPlied sAfety limits, such As low wAter cutoffs And 

• 

temPerAture limit devices, in series with the 120v circuit used to Power 

the boiler.  do not Alter the boiler’s fActory wiring when Adding An 

AdditionAl limit device.

   

Section IX Wiring

                               

   

Line Voltage (120 VAC) Field Connections

1) 

 – See Figure 9.0 for line voltage connections. Provide a dedicated circuit for the 

boiler of 15A or greater. A service switch is recommended and is required by many local codes. Locate this switch in accor-

dance with local codes or, in the absence of any, in a location where it can be safely accessed in an emergency involving the 

boiler. All 120VAC connections to the boiler itself are made inside the junction box on the right side of the boiler. 120VAC 

connections are: 

Ground

• 

120VAC Hot (Black)

• 

120VAC Neutral (White)

• 

Heating Circulator Hot (Red)

• 

Heating Circulator Neutral (White)

• 

DHW Circulator Hot (Blue)

• 

DHW Circulator Neutral (White)

• 

   The use of the Circulator outputs are as follows (also refer to the Piping Section) 

Heating Circulator - Pumps water upon a call for heat (CH) from a heating thermostat connected to the leads shown in 

a) 

Figure 9.1 or from an EnviraCom thermostat. 

DHW Circulator -  Pumps boiler water to an indirect water heater upon a call for domestic hot water (DHW) from the 

b) 

DHW thermostat terminals shown in Figure 9.1. This output can also be used for a second space heating zone. See Sec-

tion Xb of this manual for additional information.   

   Maximum circulator current draw is 5.0 FLA. 

Low Voltage Connections

2) 

 – Low voltage field connections are located as shown in Figure 9.1 and are as follows:

Heating Thermostat

a) 

 - Connect to a 24 volt thermostat or other “dry contacts” (such as a zone panel end switch) that 

close upon a call for heat. Follow thermostat manufacturer’s instructions. To insure proper thermostat operation, avoid 

installation in areas of poor air circulation, hot spots (near any heat source or in direct sunlight), cold spots (outside 

walls, walls adjacent to unheated areas, locations subject to drafts). Provide Class II circuit between thermostat (or zone 

controls) and boiler. 

DHW

b) 

 - If used, connect to a 24VAC domestic hot water thermostat or 2nd space heating thermostat.

 

Содержание BWF Series

Страница 1: ...ry 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 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 D E S I G...

Страница 2: ...2 ...

Страница 3: ...ures Ability to operate two circulator zones without additional controls Optional 24 volt low water cut off kit 761000 that plugs directly into this control system LED readout of boiler status B How to use this Supplement All information and Warnings in the original manual still apply EXCEPT for the following Information in this manual completely replaces Section IX Wiring in the original manual a...

Страница 4: ...boiler itself are made inside the junction box on the right side of the boiler 120VAC connections are Ground 120VAC Hot Black 120VAC Neutral White Heating Circulator Hot Red Heating Circulator Neutral White DHW Circulator Hot Blue DHW Circulator Neutral White The use of the Circulator outputs are as follows also refer to the Piping Section Heating Circulator Pumps water upon a call for heat CH fro...

Страница 5: ... If such a power source is present it could destroy the boiler s control One example of an external power source that could be inadvertently connected to the low voltage connections is a transformer in old thermostat wiring 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 damag...

Страница 6: ...4 FIGURE 9 2 INTERNAL CONNECTIONS DIAGRAM ...

Страница 7: ...5 FIGURE 9 3 LADDER DIAGRAM ...

Страница 8: ...t status of the boiler A list and description of these status numbers is shown in Table 10b 2 and is also shown on the face of the control itself 2 Operating Mode Provides additional information about the current status of the boiler Operating mode is entered by pressing the I button shown in Figure 10b 0 When this button is first pressed in Status mode the display will alternately display bt and ...

Страница 9: ...ible when Lockout is Present UU Code for Error Present Table 13 0 total burner Cycles UXQ Total Run Time hrs Press I E F Return to Status Mode Press or Boiler in Lockout Temperature Units UVW Reset 2U Circulator Overrun High Limit Setting G Limit Differential 6W Thermal Purge Temp 33 Thermal Purge Time 3W DHW Priority ON OFF GK Use of 2nd Zone N Boiler in Lockout N Y Y Except as shown above press ...

Страница 10: ...e switch remained closed Boiler will remain in this state until the air pressure switch opens 12 Pressure Switch failed to close Control waited in Status 3 for 60 seconds and air pressure switch failed to close Boiler will remain in this state until the air pressure switch closes 13 Soft Lockout A fault is preventing the boiler from firing Boiler will be allowed to fire after problem clears itself...

Страница 11: ...used as a second heating zone see Table 10b 5 this parameter will be shown as OFF and tt will be shown as ON when this zone calls for heat FLA Flame Current Flame rectification signal uA run Run Time Hours Total amount of time gas valve has been open burner firing since control was new hours starting from 1 CyC Boiler Cycles Total number of burner cycles on the control Err Error Number Present onl...

Страница 12: ...at if all calls for heat end while the burners are off on high limit the burner will not restart during the next call for heat until the thermal purge requirements described below are met Or Circulator Overrun Determines how long the Heating Circulator will operate after the call for heat ends In some cases this can help reduce energy consumption by sending heat stored in the boiler out into the s...

Страница 13: ... 140 Pt DHW Priority If this feature is turned on and simultaneous calls for heat and DHW are present the heating circulator will be forced off for as long as it takes the boiler to satisfy the call for DHW This feature is sometimes useful when the boiler size is marginal for the peak DHW demand but should be used with caution as it can result in lack of heat if the DHW call is very long or if the...

Страница 14: ...n The control enegrgizes the fan and waits for the air pressure switch to close 4 Once the air pressure switch closes the control waits for a 30s prepurge period to pass before attempting to light the pilot 5 The control starts an ignition spark at the pilot and applies 24 volts across the pilot valve terminals PV and MV PV on the 6 gas valve Once the pilot is established the pilot flame will act ...

Страница 15: ... as a blockage or a problem witgh the fan If this switch must be replaced it must be replaced with an identical switch or one that is shown in Crown documentation as being a suitable repelacement for this boiler 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 f...

Страница 16: ...ry to rule out all other possible causes When checking voltage across at wiring connectors 5 be careful not to insert the meter probes into the metal sockets Do ing so may damage the socket resulting in a loose connection when the harness is reconnected B If Display is Blank Check for 24 VAC on transformer secondary connections screws to which blue and yellow leads are connected If volt 1 age acro...

Страница 17: ...rol 35 Duplicate Zone Error code reserved for future use 57 Grounded pilot electrode Condensate or foreign material is shorting pilot electrode to ground Ignition cable insulation is damaged and touching ground Pilot is damaged 58 AC Power Frequency Error 120VAC power supply frequency is incorrect Should be 60Hz 120VAC power supply is dirty consult electrician and or Utility Boiler water temperatu...

Страница 18: ...d strap damaged replace pilot If you cannot hear spark at all replace control StA 6 Spark but no pilot flame Low inlet gas pressure Plugged kinked or leaking pilot tubing Plugged pilot orifice Gas line not purged of air Defective pilot assembly Defective gas valve before replacing confirm that there is 24VAC between PV and MV PV If there is not control harness is loose or the control itself is def...

Страница 19: ...tor 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 ...

Страница 20: ...601830 1 EA 1 EA 1 EA 1 EA 1 EA 1 EA INNER PANEL KEY 80 1 EA 650393 650394 650395 650396 650397 650398 PARTS UNIQUE TO CWD SERIES BOILERS EQUIPPED WITH S9361A CONTROL SYSTEM DESCRIPTION QTY OR CROWN PN QUANTITY PER BOILER OR CROWN PART NUMBER CWD060 CWD083 CWD110 CWD138 CWD165 CWD193 CWD220 CWD245 INTEGRATED BOILER CONTROL INDUCED DRAFT HONEYWELL S9361A2077 3505065 1 EA 1 EA 1 EA 1 EA 1 EA 1 EA 1 ...

Страница 21: ...19 ...

Страница 22: ...20 ...

Страница 23: ...21 ...

Страница 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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