PVI Industries PV500-47C manual Troubleshooting Guide, Problem Probable Cause Corrective Action

Page 30

15 TROUBLESHOOTING GUIDE

Problem

Probable Cause

Corrective Action

 

Power Supply

Check fuse and/or circuit breaker. Check voltage at

 

120/24V step-down transformer.

 

 

 

On-Off Switch

Check if On-Off switch is lighted

 

Temperature Control

Check that the operating temperature control is set

 

higher than the temperature of the water heater.

 

 

 

Flame Safeguard Control

Check for bad ground or bad control. Replace if

 

necessary.

 

 

 

Remote enable/disable open

Enable water heater or place jumper between

 

terminals R1-R2.

 

 

 

 

Check if fan connection terminals on flame control

 

 

is closed

Starting or Pre-purge

Combustion Air blower

Check for 24V at field access terminal C2. Remote

Failure

 

interlock may be open.

 

 

Fan VFD may be defective. Verify proper voltage.

 

 

Check switch contacts are closed.

 

 

Check for 24V at the N.O. side of air switch

 

Air-proving Switch

Check for 24V at the common side of air switch

 

 

Check for proper blower pressure setting – adjust if

 

 

required. Air switch may be defective.

 

Blocked Filter Switch

Check for 24V at the N.C. side of the blocked filter

 

switch. Replace filter or switch as required.

 

 

 

Flame Control Pressure Switch

Check for 24V at the pressure switch terminal.

 

Loose Wire Connections

Check connections to all components

 

Power Supply

Check fuse and/or circuit breaker. Check voltage at

 

120/24V step-down transformer.

 

 

 

Flame Safeguard Control

Check for bad ground or bad control. Replace if

 

necessary.

 

 

 

 

Check amp draw during heat-up. Replace if amps

 

Hot Surface Igniter

greater than 3.1A. Check for overheating condition

 

 

due to damaged refractory around igniter.

Flame Failure

Air-proving Switch

Check if switch is bouncing. Adjust or replace.

 

 

Gas Pressure

Check for proper inlet static and dynamic gas

 

 

pressure.

 

 

 

Combustion

Inadequate flame signal may result from improper

 

combustion. Adjust to proper CO2 levels at low fire.

 

 

 

Grounding

Check for proper ground from flame control to

 

burner housing.

 

 

 

Safety Limits

Check all safety limits for fault condition and correct

 

as required.

 

 

30

PV500-47C 06/12

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Contents Installation & Maintenance Manual Table of Contents Temptrac Electronic Controller Panel Operating and Safety ControlsTroubleshooting Guide Replacement Parts Remote Connections Terminal StripSafety Considerations Product Safety InformationBelow scalding temperatures Standard Features and Equipment Series Series Codes Water Heater InstallationChecking Equipment Before You Install Electrical RequirementsGeneral Piping Guidelines Service ClearancesClearances To Combustible Surfaces Inlet and Outlet ConnectionsPV500-47C 06/12 PV500-47C 06/12 Optional Condensate Neutralization System Inlet Pressure NAT. GAS Single Unit Installation Suggested Pipe SizeGAS Supply and Piping Convert Fittings to Equivalent Straight PipeInches Multiple Unit Installations GAS Piping Size ChartNominal Iron Length of Pipe in Straight Feet Appliance Isolation during Gas Supply Piping Pressure Test∙ All Air From Outdoors Combustion and Ventilation AIREquipment Located In Confined Spaces ∙ All Air From Inside The BuildingDuct Fitting Equivalent Length Duct Pipe Vertical or Horizontal Remote Air Duct TerminationMaximum Category IV Vent Length Equivalent Length VentingVenting the Tricon Vent Fitting Equivalent Length Vent PipeVertical or Horizontal Vent Termination Combining Category IV VentsHigh Water Temperature Limit Control Operating and Safety ControlsTemperature and Pressure Relief Valve s Cathodic ProtectionDown Temptrac Electronic Controller PanelSET ClockTo View The Setpoint To Change The SetpointTo Change Other Parameters Recommended Action LED Display Alarm MessagesAlarm Cause Results of Alarm Condition Message Remote Connections Terminal StripSequence of Operation Incoming 120VACLoss of Flame Signal LED Indication Fault ModeInitial Startup Turn-on main gas shutoff valve PV500-47C 06/12 Gas Train Illustration Alternate Gas Train IllustrationTroubleshooting Guide Problem Probable Cause Corrective ActionReplacement Parts Replacement PartsControl Panel FUSEHOLDER, Panel Type #HTB-28I Burner Assembly Optional components may or may not be shown Burner Assembly Components SUPPORT, GAS Train FB14 PvifBurner GAS Train Components Contact factory for more informationPeriodic Maintenance PV500-47C 06/12 Recommended Maintenance Schedule PV500-47C 06/12

PV500-47C specifications

PVI Industries has established itself as a leading name in the manufacturing of innovative water heating solutions. Among its diverse product lineup is the PV500-47C, a well-regarded commercial water heater that exemplifies efficiency, reliability, and advanced technology. Designed for a variety of applications, the PV500-47C is particularly suitable for large commercial institutions, including hotels, hospitals, and educational facilities.

One of the standout features of the PV500-47C is its robust construction and high storage capacity. With a tank capacity of 500 gallons, it is designed to accommodate the high-demand hot water needs of large settings. The unit is engineered using resilient materials that provide long-lasting performance while also resists corrosion, ensuring the integrity of the tank over time.

The PV500-47C incorporates advanced heating technologies to improve energy efficiency. Its innovative design includes a highly efficient insulated tank that minimizes heat loss, allowing it to maintain water temperatures effectively. The water heater is typically powered by extensive heat exchangers that maximize energy transfer from the heating source to the water, which can help reduce energy costs and improve overall operational efficiency.

In addition, the PV500-47C boasts a state-of-the-art electronic control system that enables precise temperature management. This feature enhances not only safety but also the efficiency of the heating process, allowing users to program specific temperatures and schedules according to their operational needs. The unit also includes multiple safety features, such as high-temperature limit switches to prevent over-temperature situations, contributing to the overall safety of the water heating system.

Another notable characteristic of the PV500-47C is its ease of installation and maintenance. The unit is designed with accessibility in mind, allowing for straightforward installation in various commercial settings. Regular maintenance is simplified thanks to its accessible components, which makes it easier for technicians to service the system, ensuring minimal downtime.

In summary, the PVI Industries PV500-47C is a highly efficient and dependable solution for commercial water heating needs. Its impressive features, advanced technologies, and user-friendly design make it an optimal choice for businesses that require consistent hot water supply while managing energy costs effectively. This makes the PV500-47C not just a water heater, but an integral asset to any large-scale operation.
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