Patterson-Kelley MACH-05 manual Loss of Water Level

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MACH® Series Gas-Fired Boiler

Maintenance

 

 

Loss of Water Level

The low water switch opens when there is insufficient water level in the boiler. E 12 is shown on the display, and burner operation is interrupted. When the correct water level is re-established, pushing the reset button will return the sequence to Step 5, provided that the other limits are satisfied.

Low Gas Pressure

The low gas pressure switch opens when there is (or has been) insufficient gas pressure available for proper operation of the boiler; E 12 is shown on the display, and burner operation is interrupted. If a gas-supply shut-off valve is closed for any reason, a low gas condition will result.

When gas pressure is restored, E 12 will remain on the display panel, and the boiler will remain locked out until the front panel reset button is pressed.

Once the control is reset, the sequence returns to Step 5, provided that the other limits are satisfied.

manually reset and the front panel reset button is pressed. Once the switch, and the front panel are reset, the sequence returns to Step 5, provided that the other limits are satisfied.

Low Air

If the display panel indicates E 08 this indicates insufficient airflow through the burner. Check that the burner is clean ("Cleaning the Burner," Section 5.2) and that there are no obstructions to airflow in the intake or exhaust ducts. A low air indication does not necessarily mean that the low air switch is defective.

Air Switch Closed

If the display panel indicates B 61 this indicates the air pressure switch did not open when the blower was shut off. Check that there is no air flow through the boiler when the fan is off. If there is no hidden source of air flow, replace the switch.

High Gas Pressure

The high gas pressure switch opens when there is (or has been) excessive gas pressure for the proper operation of the boiler. An E 12 service code is displayed and the burner operation is interrupted.

When proper gas pressure is restored, E 12 remains on the display with the boiler locked out until the front display panel reset button is pressed.

High Water Temperature

When the boiler water has exceeded both the operating and high-limit temperature the high limit switch opens, and E 12 is shown on the display. When the water temperature falls below the high-limit temperature, the boiler will remain locked out until the switch is

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Flame Failure

In the event of a flame failure during a firing period or a trial for ignition, the main fuel valves are de- energized and a manual reset lockout occurs. After the spark ignition is re-energized, the 3 second trial-for- ignition begins again. If flame failure occurs during a trail-for-ignition, a safety lockout occurs. The display will indicate E 02. If flame failure occurs and an service code is displayed, the combustion control must be manually reset.

E 00 signifies a leaky gas valve. In the event of a false flame signal E 00 fault code is indicated. This fault code could indicate a gas valve failure or leakage of the gas valve. If gas valve leakage is suspected, the unit must be isolated by turning off the main gas supply line until the gas valve is replaced.

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Contents PATTERSON-KELLEY Mach Series Gas-Fired Boiler Operation What to do if you smell gas Introduction SafetyElectrical Hazards Burn, Fire, and Explosion HazardsCrush Hazards Weight in PoundsChemical Hazards Boiler SizeSlip, Fall Hazards Pressure HazardsStorage Prior to Installation InstallationPlacement Initial InspectionClearances Adjustable Legs for Leveling and Floor ClearanceElectrical Connections at Rear of Boiler Air Inlet RequirementsFlue Connection at Boiler Required ClearancesRooftop Installations Sidewall InstallationsVent Terminations Venting for Multiple BoilersRemoving an Existing Boiler Sealed Combustion Air/Venting SystemIntake/Exhaust Layout Sidewall Inlet, Roof Vent Roof Inlet and Vent Intake Duct Materials and Sizes Intake Duct TerminationsSealing the Intake Duct Intake Duct Connection to BoilerTape on gas line threads Vent ElbowsIntake Termination Details Gas PipingPiping Design Gas Supply Piping by InstallerFeet InchesBoiler Inlet and Outlet Connections Boiler Inlet and Outlet ConnectionsFlushing and Filling Boiler Water Piping by InstallerInspection Mach C300 & C450 Test of Ignition Safety SystemTest of Low Water Cut-out Test of Gas Pressure SwitchTest of High-Limit Control Operating Temperature Controller Description Lower Limit UpperStep Value Parameter Value Parameter Value Allowable RangeParameter Value Allowable Range F Outdoor AIR vs Boiler SetpointGas Pressure Adjustment Gas Valve Setup and Adjustment Air Flow AdjustmentsGas Pressure Test Port CO2 C300/450 Adjusting Low and High FireMach C750, C900 & C450 C750/900/10500 Adjusting Low and HighNormal Shut Down Procedures Lighting ProceduresOperation Control Panel FrontEmergency Shut-Off Emergency Shut-OffRate Weekly MaintenanceMonthly During Operation DailyAnnually Semi-Annually every 6 monthsLoss of Power Loss of Water Level Code Lockout Manual Reset Service CodesDo not Auto-reset Service CodesPARTS/TECHNICAL Support Terminal Number Label Description Terminal Block Assignments High Voltage Circuit TB21a Terminal Block Assignments Low Voltage Circuit TB1 Wiring Series C-300 Wiring Series C-450 Wiring Series C-750/900/1050 Mach Series 300/450 Main AssemblyMark Description Control PanelDisplay Panel 4 C-300/450 Heat Engine Mark Description Mark Description 5 C-750/900/1050 Heat EngineMark Description 6 C-300 Boiler Gas Train7 C-450 Boiler Gas Train 8 C-750/900/1050 Boiler Gas Train Mark Description Remedy Limited WarrantyThird Party Warranties CO2 AppendixParameter Settings for Mcba Controls Description Lower Limit Upper Limit Installed 2X = 3 way valve normally closed

MACH-05 specifications

The Patterson-Kelley MACH-05 is an innovative high-efficiency boiler designed to meet the demanding needs of today’s commercial and industrial applications. Known for its remarkable performance and advanced technologies, the MACH-05 stands out in the market with its ability to provide reliable heating solutions while minimizing energy consumption and environmental impact.

One of the key features of the MACH-05 is its cascading capability. This allows multiple units to be linked together for enhanced capacity and redundancy. By operating in a modular system, users can achieve optimal energy efficiency by adjusting the number of active units based on real-time demand. This ensures that the system operates at peak efficiency, increasing overall reliability and reducing operational costs.

The MACH-05 is equipped with a fully modulating burner system, which ensures precise control of output and efficiency across a broad range of operating conditions. This advanced burner technology facilitates a significant reduction in fuel usage compared to traditional fixed-output systems. Combined with its high thermal efficiency rating, the MACH-05 is not only environmentally friendly but also economically advantageous for facilities looking to lower energy expenses.

In terms of construction, the MACH-05 features a compact, lightweight design that allows for easy installation and integration into existing systems. Its stainless steel heat exchanger is built to provide superior durability and resistance to corrosion, ensuring a long operational lifespan and reducing maintenance requirements. This design advantage translates into lower lifecycle costs for end-users.

The boiler also incorporates intelligent control systems that enhance operational efficiency. These controls can monitor and adjust parameters in real-time, optimizing performance and offering detailed diagnostics to anticipate maintenance needs. The user-friendly interface makes it easy for operators to manage the system and access vital information regarding performance metrics.

Additionally, the MACH-05 is designed with safety in mind, featuring multiple safety controls and alarms that function to protect both the equipment and personnel. This commitment to safety ensures that facilities can operate with peace of mind, knowing that they have a reliable and secure heating solution.

In summary, the Patterson-Kelley MACH-05 combines advanced engineering, efficiency, and safety features to provide a versatile and dependable heating solution. Its key advantages, including cascading capabilities, fully modulating burner technology, and intelligent controls make it an ideal choice for commercial and industrial applications, paving the way toward sustainable and cost-effective heating systems.
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