Weil-McLain BCP-3 - Manuals

Page 2 - BCP-3 Installation and Operation Manual; Type of Radiation in Building; Operation Concept; Boiler Operation; F or the Maximum Water temperature Setting.; Reset Ratio Curves

2 BCP-3 Installation and Operation Manual thermostat is satisﬁed. Another, is a Setback input that will switch the heating system to a lower set point determined by the Set Back setting. Type of Radiation in Building Reset Ratio Offset Radiators (Steel & Cast Iron) 1.00 (O) : 1.00 (S) 0˚F Basebo...

Page 3 - Wiring Power Input; ONLY A SINGLE POWER SOURCE; Wiring Input Terminals; Locating HSS; WARNING; 4VAC Power Wiring; Input Terminals

3 BCP-3 Installation and Operation Manual Mounting the Controller • The BCP-3 is designed to mount on a 1900 (4”x4”) deep electrical box. • If additional room is needed for wiring use the extension skirt provided. • Place the BCP-3 in an indoor convenient location near the unit to be controlled and ...

Page 4 - IMPORTANT; Wiring Outputs; Wire Colors and Output Lights; Wiring; DHW Call; Output 1 Output 2 Output 3

4 BCP-3 Installation and Operation Manual IMPORTANT Determining the proper location for the Outdoor Sensor is very important. The BCP-3 will base the heat on the outdoor temperature information it receives from this location. If the sensor is in the sun, or covered with ice, its reading will be diff...

Page 5 - Output Mode Table; Then, wire the two White wires to the High fire circuit.; Wiring the System and DHW Pump Outputs; Wire the two Yellow wires to the System Pump circuit.; System Pump; DHW Pump

5 BCP-3 Installation and Operation Manual Output Mode Table Output Mode Description Output 1 (Yellow Wires) Output 2 (Blue Wires) Output 3 (White Wires) Notes 1-On/Off+1-Pump One On/Off boiler and a System pump Sys Pump Boiler Not used 1-On/Off+2-Pump One On/Off boiler, a System pump and a Domestic ...

Page 6 - BCP-3 Output Modes Wiring

6 BCP-3 Installation and Operation Manual T1 T2 COM COM T3+ T3- EXT+ EXT - P+ P- COM 24V A C S y st em S ensor Out door S ensor Enable Dr y C ontac t S etback Timer 120 VAC Wiring 1 Lo/Hi Boiler + System Pump System Pump( Yellow/Output 1) Boiler Lo (Blue/ Output 2) Boiler Hi ( White/ Output 3) DHW C...

Page 7 - Startup Menu; Menus; Default Screen

7 BCP-3 Installation and Operation Manual Weil McLain V1.00 (c) 2008 BCP-3 Boiler Control Loading Default Values... DISPLAY UNIT: FC SENSOR FAULT:Output OnOutput Off SETUP COMPLETE! PRESS SET Startup Menu SYSTEM= 68 F TARGET= 150 F ------MAIN------ Set Point 170 F<Out. Reset><Settings>&l...

Page 8 - Display Unit; Control Mode; Outdoor Reset, Set Point; Output Mode; Sensor Fault; Output On, Output Off; OFF

8 BCP-3 Installation and Operation Manual Button and Navigating Menus The BCP-3 has three buttons.• The SET button function varies. When the Default Screen is displayed, pressing the SET Button views the MENU. When in the Menus and settings, the SET Button accepts the selected entry or setting value...

Page 9 - Outdoor Reset Mode; Setting the Control to Factory Default; Default Display; Operating Menu Options (Click SET Button); Outdoor Reset (Available when Startup Control Mode = Outdoor Reset)

9 BCP-3 Installation and Operation Manual Outdoor Reset Mode • When Output-On is selected, the BCP-3 will energize all boiler and system relays when the System reads SHORT or OPEN and Outdoor is below Outdoor Cutoff. Thus, all boilers will run on their limits. However, if the Outdoor sensor fails an...

Page 10 - Adjust the RESET RATIO in cold weather.; Custom Reset Ratio; Custom Outdoor Reset Curve; Custom; Adjust the Water Offset in mild weather; Outdoor Cutoff; in Set Point; in

10 BCP-3 Installation and Operation Manual • If required: Adjust the RESET RATIO in cold weather. If the ambient building temperatures are too cold in cold weather, move the ratio to a higher selection. That is, if 1.00 (O):1.00 (S) was initially selected, change the selection to 1.00 (O):1.25 (S). ...

Page 11 - Stage Menu Options; Reaction Time; Purge

11 BCP-3 Installation and Operation Manual Minimum Target (Available when Startup Control Mode = Outdoor Reset) Options: From 70 º F/21 ºC to 170 º F/77 ºC Default: 140 º F/60 ºC SET SET /Set Point/<Out. Reset>/Min. Tgt • The Minimum Target Temperature must be set to the boiler manufacturer’s ...

Page 12 - Minimum Runtime; This is the minimum amount of time any stage will run.; Lead Rotation Options:; Manual or Time; Rotation Period Options:; Single On/Off Boiler and System Pump Settings; From 1; oC; From 0 min to 60 min

12 BCP-3 Installation and Operation Manual Minimum Runtime Options: 1 to 60 minutes Default: 2 minutes SET SET /<Settings>/<Stage>/Min. Runtime • This is the minimum amount of time any stage will run. • The Minimum Runtime for the lowest ﬁring stage on a boiler starts after the purge cyc...

Page 13 - NO and From 1 min to 120 min; Setback; From 0; Boost; System and Outdoor Trim

13 BCP-3 Installation and Operation Manual Domestic Hot Water (DHW) Priority Options: NO and From 1 min to 120 min Default: NO SET SET /Settings>/DHW Prior. DHW Priority:60m • The DHW Priority, with a value set to other than NO, provides the user with an adjustable DHW priority timer for the dome...

Page 14 - then, check the EXT terminals. If the EXT terminals are not; Temperature Sensor Chart

14 BCP-3 Installation and Operation Manual Troubleshooting No Display or LED Lights Check the power to the BCP-3. The BCP-3 requires 120VAC power to the Black wires or 24VAC to the right-most terminals. Turn the power off and back on to restore the display. If unsuccessful, make sure that the contro...

Page 15 - Boiler1; Boiler2; System Pump + DHW Pump; BCP-3 Plumbing Diagrams

15 BCP-3 Installation and Operation Manual Boiler1 DHW Indirect Building Heat System Sensor Outdoor Sensor T1 T2 COM COM T3+ T3- EXT+ EXT - P+ P- COM 24V AC } System Sensor } Outdoor Sensor } DHW Call Dry Contact } Enable Dry Contact } Setback Dry Contact Boiler SYS Pump DHW Pump SET SET SYSTEM = 14...

Page 16 - Specifications; Operating Temperature:

16 BCP-3 Installation and Operation Manual 500 Blaine Street Michigan City, Indiana 46360 219-879-6561 http://www.weil-mclain.com HT #059075-00 A Speciﬁcations Voltage Input: . . . . . . . 120 VAC 60 Hz(2 Black wires) /24VAC 60 Hz (24VAc terminals) (Only One Power Source) Power Consumption: . . . . ...