Honeywell DBC2000E10 Series, Handbook

Page 1: ... equipment during start up of the burner Safe start check before and during pre purge Dual flame amplifier for UV IR or flame rod sensor Automatic recycle once per 24h of uninterrupted heat demand Frontal jack plug Ø 3 5mm to read the flame signal with a microampere meter An electrical sub base lock reset and safety limit terminals are swapped to avoid that a Standard model is used systems wired f...

Page 2: ...en no post purge feature is enabled terminal 12 jumpered to line voltage Sequence at flame failure immediate lock out Table 2a Sequence timing Enhanced and Ultimate Models Waiting for AFS Waiting for HF Pre purge Ignition Pilot only Main trial Main stabilization Post purge Flame failure response 300s max 300s max 35s 1 3s 5s 3s 2 4s 2 15s 3 1s max 1 Default pre purge time is 35s Other timings on r...

Page 3: ... rod or rectifying optical sensors C7012A G UV or IRD1020 1 IR 15m 14µA min 4µA max When using a flame rod the current on the flame jack plug is inverted See also Fig 4 2 Flame detector leads are colour coded The blue lead wire must be connected to the F terminal T23 and the white lead wire to the G terminal T24 The UV sensing tube is polarity sensitive Reversing the lead wires even momentarily wi...

Page 4: ... of the device Therefore avoid touching the lead wires to avoid an electrical shock Reset switch When the DBC2000 is in Lockout condition press the internal or remote reset button one time to reset the DBC2000 and stop the alarm The reset button must be held for a minimum of 3 seconds If the heat demand is still present the DBC2000 will perform the start sequence normally when the fault condition ...

Page 5: ...ENS7003R16 KO65 2013 5 4 DIMENSIONS Fig 1 External Dimensions in mm Fig 2 Mounting dimensions of sub base and terminal layout ...

Page 6: ...in parallel 9 This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions can cause interference with radio communications It has been tested and found to comply with the limits for a Class B computing device of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when operated ...

Page 7: ...o Terminal 7 and main valve 2 to Terminal 12 for the VPS function 3 When using Interrupted Pilot connect the pilot valve to Terminal 6 Connect the main valves to Terminal 7 Enhanced and Ultimate models connect main valve 1 to Terminal 7 and main valve 2 to Terminal 12 for the VPS function 4 When using direct ignition DBI jumper Terminals 15 and 22 And connect the Main DBI valves to Terminal 5 5 Wh...

Page 8: ...for the Standard and Enhanced Ultimate models This is to prevent that a Standard model can be used by mistake in a system that is wired for an Enhanced or Ultimate model Fig 3 1 Terminal layout Fig 3 2 Example of wiring to external equipment see fig 3 3 for more ...

Page 9: ...re examples of wiring to external equipment Fig 4 1 Wiring a flame detector CAUTION There is line voltage on flame sensor inputs Don t touch the lead wires of the UV detector or the flame sensing electrode to avoid an electrical shock ...

Page 10: ...e flame sensor wiring whilst 1 Using a flame rod the multi meter will show the real flame current in µA 2 Using a UV sensor C7027 C7035 or C7044 the current in the sensor lead wires will be in the range of 20 25mA inverted values Fig 4 3 Measuring flame signal with multi meter µA range selection using a jack plug STD ENH Models flame detector select only ULT Model bus connector and address switche...

Page 11: ...goes straight into running modulate after pilot stabilization STD model To enable DBI mode apply line voltage to terminal 22 on the wiring base Practically this means that a jumper is placed between terminals 1 L and 22 ENH ULT models To enable DBI mode make the correct DIP switch setting on the front of the DBC2000E SW2 DBI PI select Factory set to PI SW2 off See fig 4 5 to locate the DIP switche...

Page 12: ...lve outputs are energized T5 and T6 FLAME ON When a flame is detected after the ignition trial has ended Safety1 the pilot stabilization time starts After completion of the pilot stabilization time the Main valves are energized T7 ON Note Enhanced Model also T12 ON The Main trial for ignition takes place Safety2 After completion of the main trial time Interrupted pilot valve is deenergized T5 OFF ...

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Page 14: ...s If a non critical error is detected such as opening of the air flow switch during post purge DBC2000 holds the sequence during the lock out time allowing time for the error to rectify and then goes into lock out For all types of errors the status LEDs indicate the status information to the operator Fig 6 to Fig 13 show the sequence of DBC2000 in case of some error And Table 8 shows the status of...

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Page 22: ...is present Pilot Ignition Air flow switch goes OFF Ignition failure flame signal is not present after ignition trial Pilot only Air flow switch goes OFF No flame signal Main ignition Air flow switch goes OFF No flame signal Main ignition Stabilization Air flow switch goes OFF No flame signal Run Air flow switch goes OFF No flame signal Post purge No power is supplied to Terminal 3 because of inter...

Page 23: ...as described in the EC type examination certificate issued by DVGW CERT GmbH in Bonn with pin number 0085CM0138 in conformity with the essential requirements of the Low Voltage Directive 2006 95 EC based on EN 60730 2 5 in conformity with the essential requirements of the EMC Directive 2004 108 EC on immunity based on EN 298 immunity requirements Conformity with the essential requirements of the E...

Page 24: ...rg We cannot assume that the product can be safely used beyond the mentioned designed lifetime This lifetime is based on use of the control according manufacturer s instructions Regular inspection of the control by authorized personnel in accordance with guidelines of the appliance manufacturer is required After reaching the designed lifetime the product has to be replaced by authorized personnel ...

Page 25: ...n examples Example 1 Calculation of the minimum test time per valve in a 2 threaded pipe train Pi 150 mbar Qm 60 dm 3 h Gas valves used 2 size with 0 5 meter pipe To be calculated Tp s Calculation From Table a 2 L 0 5m Vp 2 3 dm 3 2 x 150 x 2 3 Tp s 60 Using the formula above the minimum test time Tp 11 5s The DBC2000E2 must be set to 15s test time see page 11 Example 2 NOTE to allow a 3 valve con...

Page 26: ... 0 22 0 08 0 06 0 15 0 24 0 33 0 42 0 18 0 12 0 28 0 43 0 59 0 74 0 31 1 0 19 0 44 0 68 0 93 1 2 0 49 1 0 69 1 1 1 5 1 9 2 3 0 8 1 0 71 1 4 2 0 2 7 3 3 1 3 2 1 3 2 3 3 3 4 2 5 2 2 0 2 2 7 4 4 6 0 7 7 9 3 3 3 3 2 9 5 4 7 9 10 13 5 DN65 3 2 4 9 7 5 8 2 9 8 3 3 DN80 4 4 6 9 9 4 12 14 5 0 DN100 6 5 10 5 14 4 18 22 7 9 Threaded connections sizes in inches Flanged connections sizes in DN If L 0m it mean...

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