Related Manuals for Macurco GBC-2-24
Summary of Contents for Macurco GBC-2-24
- Page 1 Macurco™ GBC Gas Boiler Controller Installation & Operation Manual IMPORTANT: Keep these user instructions for reference.
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Page 2: Table Of Contents
Fan Relay Delay Setting – “Frd” ......................18 4.3.5 Fan Relay Latching Setting – “FrL” ......................18 Appendix A – Table of Figures ..........................19 Macurco Gas Detection Product limited warranty ....................20 Technical Support Contact Information ........................20 General Contact Information ............................20 REV – 1.2... -
Page 3: General Safety Information
2 Use Instructions and Limitations The Gas Boiler Controller used in conjunction with Macurco Gas detectors is used to shut down boilers in the presence of gas. Using a single detector or up to four gas detectors the controller can control up to eight dry contact outputs. -
Page 4: Models Options
Macurco GBC Manual 2.2 Models Options Model Number Number of Relays Input Voltage GBC-2-24 2 Relays 24 Volts AC or DC GBC-4-24 4 Relays 24 Volts AC or DC GBC-6-24 6 Relays 24 Volts AC or DC GBC-8-24 8 Relays... -
Page 5: Installation Instructions
3 Installation Instructions The following instructions are intended to serve as a guideline for the use of the Macurco Gas Boiler Controller. It is not to be considered all-inclusive, nor is it intended to replace the policy and procedures for each facility. If you have any doubts about the applicability of the equipment to your situation, consult local authorities having jurisdiction or call Technical Support at 844-325-3050. - Page 6 Macurco GBC Manual Figure 3-2 Enclosure Dimensions REV – 1.2 [34-2900-0690-7] P a g e...
- Page 7 Macurco GBC Manual Figure 3-3 – Mounting dimensions REV – 1.2 [34-2900-0690-7] P a g e...
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Page 8: General Wiring Information
Macurco GBC Manual 3.2 General Wiring Information All the connectors in GBC are spring tightening and will accept wire from 14 to 24 AWG. 3.2.1 Connecting the wires to terminals: 1. Strip each wire back 1/4 in. (6.5 mm). 2. Press down the white button of the connector. -
Page 9: Terminal Connection
Macurco GBC Manual 3.2.2 Terminal Connection Refer to Figure 3-4 - below for location of different connectors in GBC. Figure 3-4 – GBC Board Diagram REV – 1.2 [34-2900-0690-7] P a g e... - Page 10 There are two sensor connections on the GBC. These connections provide power to the respective units and monitor the normally close circuit that controls the GBC. The GBC can support up to four Macurco 6-Series gas detectors (350 mA max) in any combination. The sensors must be wired in series for the normally closed circuit to operate correctly.
- Page 11 Macurco GBC Manual Figure 3-6 – Single Sensor Channel Wiring REV – 1.2 [34-2900-0690-7] 11 | P a g e...
- Page 12 Macurco GBC Manual Figure 3-7 – Dual Sensor Channel Wiring REV – 1.2 [34-2900-0690-7] 12 | P a g e...
- Page 13 3.2.2.4 Relay Connections There are four expansion slots that accept the Macurco Expansion Relay boards. Each Expansion Relay board contains two SPDT, 120/240 VAC, 10 A Max (resistive) relays. Each relay can be wired to be either normally open (NO) or normally closed (NC) depending on the application.
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Page 14: Operations
Apply power to the GBC. The Power LED will light up green to indicate the unit is operational. If the unit is powering the detectors, each detector will cycle through its respected power up cycle. The Macurco Gas Detector (EX. CM-XX) cycles through an internal self-test cycle for the first minute that it is powered. The detector will execute the test cycle any time power is dropped and reapplied (i.e., power failure). - Page 15 Macurco GBC Manual • Relay Split (J6) o Jumper position 1 & 2 – “All”. (Default) PCBA Rev 0.1: the “All” setting activates all populated relays 1-8 simultaneously based on activation from sensors connected to Sensor 1 terminal. Note: When the jumper is set to “All” Sensor 2 terminal will NOT engage any of the relays.
- Page 16 Macurco GBC Manual Figure 4-3 – Relay Designation REV – 1.2 [34-2900-0690-7] 16 | P a g e...
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Page 17: Programming On Detectors To Work With The Gbc
Macurco GBC Manual 4.3 Programming on detectors to work with the GBC The following settings must be updated for proper operation of the GBC. Settings: CM-6/CM-12 Change To: GD-6/GD-12 Default Change To: Default Power Up Test Display Buzzer Alarm Relay Setting 200 ppm... -
Page 18: Fan Relay Delay Setting - "Frd
Macurco GBC Manual 4.3.4 Fan Relay Delay Setting – “Frd” To select the Fan Relay Delay setting, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the Enter button to enter the Con menu. The eighth selection is the “Frd” or Fan Relay Delay. Push Next seven times to get to “Frd”... -
Page 19: Appendix A - Table Of Figures
Macurco GBC Manual 5 Appendix A – Table of Figures Table 2-1 – Model Options ............................... 4 Figure 3-1 – Internal View ..............................5 Figure 3-3 – Mounting dimensions ........................... 7 Figure 3-4 – GBC Board Diagram ............................9 Figure 3-5 – GBC Board Diagram ............................ 10 Figure 3-6 –... -
Page 20: Macurco Gas Detection Product Limited Warranty
6 Macurco Gas Detection Product limited warranty Macurco warrants the GBC gas detector will be free from defective materials and workmanship for a period of two (2) years from the date of manufacture (indicated on inside cover of the GBC), provided it is maintained and used in accordance with Macurco instructions and/or recommendations.
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