Munchkin Gas-Fired Hot Water Boiler manual Munchkin Error Code, Boiler Error, Boiler Fault

Page 60

GAS-FIRED BOILER

Boiler Manual

PART 14: TROUBLESHOOTING

A. MUNCHKIN ERROR CODE

An error code may occur in the installation of the Munchkin. This condition may lead to a lock out condition of the controller, which will need to be manually reset through the S4/Reset but- ton. These temporary codes will help the installer correct the problem before going into a lock out condition, which will require a manual reset.

B.BOILER ERROR

1.When an error condition occurs the controller will display an error code on the display module.

2.These error codes and several suggested corrective actions are included in Table 14-1.

3.In the case of E00, E13, and E14 this error, if uncorrected, will go into a fault condition as described is Paragraph C (Boiler Fault).

C.BOILER FAULT

WARNING

When servicing or replacing any components of this boiler be certain that:

•The gas is off.

•All electrical power is disconnected

DANGER

When servicing or replacing that are in direct contact with the boiler water, be certain that:

•There is no pressure in the boiler. (Pull the release on the relief valve. Do not depend on the pressure gauge reading).

•The boiler water is not hot

•The electrical power is off

WARNING

Do not use this appliance if any part has been under water. Improper or dangerous operation may result. Contact a qualified service technician immediately to inspect the boiler and to repair or replace any part of the boiler which has been under water.

1.When a fault condition occurs the controller will illuminate the red “fault” indication light and display a fault code in the format (Example: F00) on the display module.

2.Note the fault code and refer to Table 14-2 for an explanation of the fault code along with several suggestions for corrective actions.

3.Press the reset key to clear the fault and resume operation. Be sure to observe the operation of the unit to prevent a recurrence of the fault.

Table 14-1 : 925 Control Board ERROR Codes

CAUTION

This appliance has wire function labels on all internal wiring. Observe the position of each wire before re- moving it. Wiring errors may cause improper and dan- gerous operation. Verify proper operation after servicing.

CAUTION

If overheating occurs or the gas supply fails to shut off, do not turn off electrical power to the circulating pump. This may aggravate the problem and increase the likelihood of boiler damage. Instead, shut off the gas supply to the boiler at the gas service valve.

Code

Description

Duration

 

Corrective Action

 

 

 

 

 

 

 

 

1.

Check circulation pump operation.

 

 

 

2.

Assure that there is adequate flow through the boiler

E00

High Limit Exceeded

50 Sec.

 

by accessing the status menu and assuring that there

 

is less than a 50°F rise from the return thermister to

„

 

 

 

 

 

 

 

the supply thermister.

 

 

 

3.

Replace switch if faulty.

 

Combustion Fan Speed Low.The boil-

 

1.

Check the combustion air fan wiring.

E13

er combustion air fan speed less

60 Sec.

2.

Replace the combustion air fan.

„

than 70% of expected.

 

3.

Replace the control board.

 

Combustion Fan Speed High. The

 

1.

Check the combustion air fan wiring.

E14

boiler combustion air fan speed is

60 Sec.

2.

Replace the combustion air fan.

„

more than 130% of expected.

 

3.

Replace the control board.

PR0

WaterPressure Switch Open

Until

1.

Assure that the system pressure is above 10 psig.

Corrected

2.

Check for leaks in the system piping.

„

 

 

 

Until

1.

Assure that the vent is not blocked

FLU

Blocked Vent Pressure Switch Open

2.

Check the switch operation by applying a jumper. (If

Corrected

„

 

 

the switch is not functioning properly, replace it.)

 

 

 

 

59

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Contents Boiler Manual Contents Contents CONT’D Part 1 Product and Safety Information DefinitionsBefore Installing When Servicing BoilerBoiler Operation Boiler WaterSupply water temperature sensor Return water temperature sensorTemperature and pressure gauge Stainless Steel Heat ExchangerPart 3 Prepare Boiler Location Spark ignitionVision 1 System Boiler Location should be LevelDimensions Performance Ratings Connection Sizes FAN Speeds80M 140M/199M Installations Must Comply with Before Locating the BoilerPrecautions Clearances for Service AccessResidential Garage Installation Exhaust Vent and Intake AIR VentWhen Removing a Boiler from AN Existing Common Vent System Corrosive contaminants and sourcesPart 5 Boiler Piping Remove Boiler from BOXRelief Valve Diaphragm or bladder expansion tank Part 5 Boiler Piping Circulator Sizing Chart Circulator SizingSystem Temperature Rise Chart Fill and Purge Heating SystemZoning with Zone Valves Zoning with CirculatorsMultiple Boilers Piping Symbol Legend Boiler Piping DetailsOFF Zone valves Make-up water Boiler Manual Space heating zone circuit Zone Circulators Make-up water PB1 PB2 PB1 PB2 Zoning with Circulators Using Vision Vision I System PipingSpace heating mode Boiler Piping Details with the Vision I SystemOFF DHW Space heating mode w/ submixing Water OFF Munchkin Vision 1 system zoning with circulators Space heating mode 3 fully reset supply temperatures Space heating mode 3 different supply temperatures OFF Thermal trap Drain plug Installing Exhaust Vent and Intake AIR Vent GeneralExhaust Vent and Intake AIR Vent Pipe Location Part 7 VENTING, Combustion AIR & Condensate Removal Reference National Fuel Gas Code Ansi Z223.1/NFPA 54 Exhaust Vent and Intake AIR Pipe Installation Exhaust Vent and Intake AIR Vent SizingLonger Vent Runs Heater Removal from a Common Vent System Vent Termination Kits Description Stock CodeCondensate Removal System Diagrams for Sidewall Venting Sidewall Venting with TEE Intake Coupling ExhaustSidwall Venting with KIT Diagrams for Vertical Venting Roof Vent with TEE Intake Coupling ExhaustPart 8 GAS Piping GAS ConnectionGAS Piping GAS TableOFF SET Adjustment Dungs GAS Valve for T50/T80/80M/140M/199MInstallation Must Comply with Field WiringLine Voltage Wiring Krom Schroder Valve for 399MPart 9 Field Wiring Part 9 Field Wiring Part 10 Field Wiring Vision Indirect Circulator P2 ProgramPart 11. START-UP Preparation Check for GAS Leaks Purge AIR from Water SystemCheck Thermostat Circuits Check Condensate Removal Final Checks Before Starting BoilerPart 12. START-UP Procedure Adjusting the SetpointOperating Instructions Status MenuTest Mode Vision 1 Program AccessProgramming the Vision I Option Boiler cannot be programmed while there is a call for heat Vision 1 Program NavigationDefault Function Function Value Description FunctionCentral Heating Curve Function Control Program Reference Chart Function Default Setting Programmed SettingMunchkin Error Code Boiler ErrorBoiler Fault Part 14 Troubleshooting 925 Control Board Fault Codes Description RemedyMaintenance Procedures Outdoor Sensor 7250P-319For GAS Leaks Sure Exhaust Vent is no Longer BlockedPart 15 Maintenance T50M/T80MT50M/T80M 80M/140M/199M Boiler Replacement Parts Boiler Boiler Start UP Report BoilerBoiler Inspection and Maintenance Schedule ManualBoiler Inspection and Maintenance Schedule Maintenance Notes Maintenance Notes Maintenance Notes Heat Transfer Products, Inc LP-185 REV /20/07

Gas-Fired Hot Water Boiler specifications

The Munchkin Gas-Fired Hot Water Boiler is a highly efficient heating system that has garnered attention in residential and commercial applications for its innovative design and advanced technology. This boiler is compact yet powerful, providing exceptional heating performance while maximizing energy efficiency.

One of the standout features of the Munchkin boiler is its modulating condensing technology. This system allows the boiler to adjust its output based on demand, which optimizes energy use and reduces unnecessary fuel consumption. By modulating the flame, the Munchkin boiler can maintain a steady heating output even during variable load conditions, ensuring that users enjoy consistent hot water without waste.

The Munchkin boiler offers an impressive AFUE (Annual Fuel Utilization Efficiency) rating, typically exceeding 95%. This high efficiency translates to significant savings on energy bills and a reduced carbon footprint. By capturing and reusing flue gases that would otherwise be lost, the condensing feature enhances the overall efficiency, making it a sustainable choice for modern heating needs.

In terms of installation, the Munchkin boiler is designed for versatility. Its compact size allows for easy placement in tight spaces, whether in residential basements or utility closets. The unit is compatible with a variety of piping systems and can be integrated with multiple heating sources including radiators, baseboards, and even in-floor heating setups.

Another notable characteristic of the Munchkin boiler is its advanced control system. The boiler is equipped with a user-friendly digital display that allows for easy programming, monitoring, and adjustments. This enhanced control capability ensures that users can fine-tune their heating schedules according to their lifestyle, optimizing comfort while maintaining peak efficiency.

Reliability is a hallmark of the Munchkin brand. Built with high-quality materials, these boilers are engineered to withstand the rigors of daily operation, offering durable performance for years. Furthermore, Munchkin provides robust customer support and service options to assist homeowners and professionals alike.

In summary, the Munchkin Gas-Fired Hot Water Boiler stands out due to its modulating condensing technology, high efficiency, compact design, and advanced control system. These characteristics make it an excellent choice for those seeking a reliable, efficient, and versatile heating solution. Whether for residential or commercial use, the Munchkin boiler provides consistent, effective heating that meets the demands of today's energy-conscious consumers.
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