Beckett CF1400 manual Typical Burner Sequence of Operation, Optional Components

Page 12

Section: Wire the Burner

6.Run: With a flame established and the control continuing to detect a flame, the burner will operate in the RUN Mode until the load demand is satisfied or a limit opens.

a.If terminals RC1 and RC2 are jumpered, the burner operates in the Low-High-Off Mode. The burner starts at Low, goes to High after the flame stabilization period. Flame is extinguished when the load is satisfied or a limit opens, and the burner is sent to motor off delay.

b.If a high/low control has been wired between terminals RC1 and RC2 the burner starts at Low and is released to go High after the flame stabilization period. It can repeatedly cycle between low and high as necessary to meet load demand until the load is satisfied or a limit opens. The burner is then sent to Motor-off Delay.

7.Recycle: If the flame is lost while the burner is

firing, the control shuts down the burner, enters a 60 second recycle delay, and repeats the ignition sequence. The control will continue to Recycle each time the flame is lost, until it reaches a pre-set time allotment. The control will then go into Hard Lockout instead of recycle. This feature prevents excessive accumulation of oil in the appliance firing chamber.

8.Motor-Off Delay: The oil solenoid valve is turned off and the control delays turning the motor off for the set motor-off delay time before the control returns to standby.

9.Pump Prime: The igniter and motor are on with the oil solenoid valve energized for 4 minutes. During Pump Prime mode, the cad cell is disregarded, allowing the technician to prime the pump without having to jumper the cad cell.

Figure 11 - Typical Burner Sequence of Operation - 7505

 

1

 

9

 

 

 

 

Standby

 

Pump

 

 

 

 

 

prime

 

 

 

 

 

 

2

3

Trial for

4

 

Valve-on delay

 

 

 

Lockout

 

 

 

ignition

 

 

 

 

 

 

 

5

Ignition carryover

8

6

7

 

Motor-off delay

 

Run

 

Recycle

Figure 12 - GeniSys 7505 Control with Optional Components

Reset Button

Wiring

Connections

with Red Light

 

Yellow Light

 

Green Light

 

Cad Cell

Connections

Thermostat Terminals

Communication Port 2

 

Communication Port 1

Optional Components:

Contractor’s Tool:

Hand-held device for

programming and diagnostics

Display Module: Permanent device for programming and diagnostics

Alarm Module:

For adding isolated low voltage alarm contacts to the base control. See Alarm Module Instructions for specifications.

12

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Contents Potential for Fire, Smoke and Asphyxiation Hazards To the Homeowner or Equipment OwnerContents General Information Hazard DefinitionsFrozen Plumbing Water Damage Hazard Pre-Installation Checklist Combustion Air SupplyClearances Fuel Supply Oil Supply Pressure Control RequiredVent System Verify Burner ComponentsVerify Firing Rate Electrical SupplyVerify Air Tube Air Tube Capacity Versus Firebox Pressure± 1/8 Mount the Burner Protect Against Stray Light Lockout Failure to follow theseInstall Nozzle Check Electrode Settings Maintain Electrode SpecificationsInstall Nozzle Line Assembly Mount Air Tube to Burner Set Z Dimension Fuel Unit By-pass Plug Factory-Installed Pump Bypass Plug Install Oil Supply To Specifications Do not install valves in the return lineOne-pipe Oil System By-pass Loop Oil Supply/Return LinesBurner Fuel Flow Wire the Burner Electrical shock can cause severe personal injury or deathCan cause severe injury, death, or property damage Typical Burner Sequence of Operation Optional ComponentsTypical Wiring 7505P Typical Burner Sequence of Operation 7184B Control Restricted LockoutTampering with, or bypassing safety controls Prepare the Burner for Start-upCould lead to equipment malfunction and result Asphyxiation, explosion or fireCF1400 Initial Indicator Adjustment Plate Settings CF2300 Initial Indicator Adjustment Plate SettingsInitial Head Position Initial Air Settings Set Appliance Limit ControlsPrepare the Fuel Unit for Air Venting Professional Service Required Disable FunctionStart the Burner Explosion and Fire HazardOperating the Burner Set High-fire AirSet Low-fire Air Maintenance and Service Replacement PartsAnnual Professional Service Required Annual ServiceBurner Replacement Parts Part Name Description CF1400 Part No CF2300 Part No Oil Valve Mounted on Junction Box 21789USK9930 SK9936 SK9932 Limited Warranty Information
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