Raypak 5042004 Blocked Vent Switch, Air Pressure Switch, UDB Diagnostic Board

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er valve/regulator performance. The low gas pressure switch automatically shuts down the heater if gas sup- ply drops below the factory setting of 3.0 in. WC for natural gas or propane gas.

The optional high gas pressure switch connection mounts down-stream of the gas valve. Special ports are located on the backside of the gas valve and accessible from the front of the heater (to reset the gas pressure switch) or through the removable access panels on the rear of the heater (to reset the gas pres- sure switch), as necessary. If the gas pressure regulator in the valve fails, the high gas pressure switch automatically shuts down the burner.

Operation of either the High or Low Gas Pressure Switch will turn on an LED inside the switch housing. Push the top of the plastic switch housing as shown in Fig. 44 to reset a tripped pressure switch. The white LED will go out when the switch is reset.

Blocked Vent Switch

This heater is equipped with a blocked vent pressure switch to prevent the operation of the heater when too much of the vent is blocked. This switch is located on the right side of the heater near the right rear corner.

Fig. 46: Blocked Vent Switch

Fig. 44: High/Low Gas Pressure Switch

Air Pressure Switch

This heater is equipped with an air pressure switch to prove the operation of the blower before allowing the ignition control to begin a Call for Heat. It is located on the right side of the lower flange of the blower mount- ing assembly, directly behind the junction box.

UDB Diagnostic Board

This heater is equipped with a diagnostic board which will indicate faults as they occur. Refer to the Trouble- shooting section for instructions on accessing, reviewing and clearing these faults.

Fig. 47: UDB Diagnostic Board

Fig. 45: Air Pressure Switch

NOTE: The wiring diagrams in this manual show all standard options. Refer to the large wiring diagram provided with your heater for options installed on your specific unit(s).

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Contents Reference Catalog no .54E Effective Replaces 241317 Rev Do so may result in an explosion or firePage Contents Pay Attention to These Terms Model Identification Before InstallationInstallations at Elevation Product ReceiptGeneral Information Component LocationsGeneral Safety Time/Temperature Relationships in ScaldsWater Time to Produce Serious Temp Burn Equipment Base InstallationInstallation Codes Indoor InstallationsOutdoor Installations Combustion and Ventilation AirIndoor Units Table E Vent/Air Inlet Termination Clearances Direct Vent InstallationsConventional Combustion Air Supply Air FilterCanadian Installations Water PipingGeneral Relief Valve Piping Temperature & Pressure Gauge Hydrostatic TestCold Water Operation Cold Water Starts Hydronic HeatingPump Selection Feedwater RegulatorGpm PipingAir-Separation/Expansion Tank Model Input Output 20 ∆T 30 ∆T 40 ∆T Min. FlowPool Heating Three-Way ValvesDomestic Hot Water Potable Water and Space HeatingPool heating application. Use the following instruc Pool/Spa Water Chemistry Winterizing Your HeaterExceed 5 ppm Automatic Chlorinators Chemical Feeders Gas SupplyGas Supply Connection Gas Supply PressureHigh Fire Values Electrical Power ConnectionsModel In. NPT 4 in. NPT 2 in. NPT Model Manifold Gas PressureCheck the Power Source Field-Connected ControllersMaking the Electrical Connections Field Wiring Connection VentingAppliance Categories Installations Support of Vent StackVent Terminal Location Installation Venting Installation TipsVenting Configurations Canadian InstallationsTermination Max. Length* ftMin 10 ØTypical Common Venting Common VentingModel Vent Size Volume Flue Products Engineered Vent SystemsHorizontal Through-the-Wall Direct Venting Category Horizontal Through-the-Wall Direct Venting Direct Vent-VerticalOutdoor Installation Model CertifiedCombustion Air Air Inlet Horizontal Max. Length** ft Vent Freeze Protection ControlsDifferential Graph Operating Modes10 VDC 20 mA Boiler Target Mode 3 Dedicated DHW10 VDC 20 mA DefinitionsPool Heater P, WHP Modes Default Setting Range Boiler H7 Modes Default SettingWater Heater WH1 Modes Default Setting Range Number Field Type Fault Description OperationRank Code Condition High Limit-Manual ResetHeater Sequence of Operation Ignition ModuleHigh & Low Gas Pressure Switches Optional High Limit-Auto Reset OptionalFlow Switch Modulating Temperature ControlBlocked Vent Switch Air Pressure SwitchUDB Diagnostic Board Wiring Diagram Models H & WH Wiring Diagram Models P & WHP Initial Start-up START-UPPre Start-up Pre Start-up CheckBlower Check Start-UpFollow-Up Safety InspectionFinishing Manifold CheckPost Start-Up Check Leak Test Procedure Dual-Seat Gas ValveLighting Instructions OperationTo Turn Off Gas To Appliance UDB Fault HistoryStep TroubleshootingMaintenance Suggested Minimum Maintenance SchedulePreventive Maintenance Schedule Annually Filter MaintenanceWeekly Semi-AnnuallyFilter Replacement AppendixInside Air Contamination Important Instructions for the Commonwealth of Massachusetts Limited Parts Warranty MVB Types H and WH Limited Parts Warranty MVB Types P & WHP Nominal Factory Recommended Settings START-UP Checklist for FAN-ASSISTED Raypak Products

5042004 specifications

The Raypak 5042004 is a highly efficient pool heater designed for residential and commercial applications, providing warmth and comfort for swimming pools and spas. It is a part of Raypak's extensive lineup of pool heating solutions, known for their reliability and energy efficiency. This model caters to different heating needs while maximizing performance and reducing energy consumption.

One of the standout features of the Raypak 5042004 is its use of advanced heat exchanger technology. Constructed with a durable copper fin design, the heat exchanger enhances thermal conductivity, allowing the unit to heat water quickly and effectively. This ensures a consistently enjoyable swimming experience, even in cooler weather conditions. The heater’s aluminum cabinet is designed to withstand harsh weather and resist corrosion, increasing its longevity and reliability.

In addition to its robust construction, the Raypak 5042004 incorporates a user-friendly digital control system. This control system allows users to set their desired temperature with precision, enabling easy adjustments and enhanced control over the heating process. The digital display provides real-time feedback, giving users insight into the system's operation and current water temperature.

Moreover, this model offers a specialized environmentally friendly option. The Raypak 5042004 is designed to run efficiently on both natural gas and propane, which provides flexibility regarding fuel choice based on availability and personal preference. This versatility is paired with low NOx (nitric oxide) emissions, making it compliant with stringent environmental regulations, making it an eco-friendly choice for consumers.

The ease of installation is another characteristic that sets the Raypak 5042004 apart from its competitors. The unit includes versatile piping options and integrated automation features that facilitate quick and hassle-free installation, ultimately saving time and effort for both professional installers and DIY enthusiasts.

In summary, the Raypak 5042004 is a cutting-edge pool heater that combines high efficiency, robust construction, user-friendly controls, and eco-friendly features. Its advanced heating technologies, durable design, and versatile fuel options make it an excellent choice for anyone looking to enhance their swimming experience year-round while being conscious of energy consumption and environmental impact.
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