Raypak 503-2003 manual Follow-Up, Leak Test Procedure Dual-Seat Gas Valve

Page 44

gas pressure switch (if provided) must be set at 3.0 in. WC for natural gas and propane gas.

8. Make sure that the high gas pressure switch (op- tional) is set to 3.0 in. WC for both natural gas and propane gas.

Follow-Up

Safety checks must be recorded as performed. Turn heater on. After main burner ignition:

1.Check manometer for proper readings.

2.Cycle heater several times and re-check readings.

3.Remove all manometers and replace caps and screws.

4.Check for gas leaks one more time.

Leak Test Procedure: Dual-Seat Gas Valve

Proper leak testing requires three pressure test points in the gas train.

Remove the access panel on the rear of the heater to access the gas valve for this test. Testpoint A is a blee- dle valve located upstream of the combination gas valve on the supply manifold.

Test point B is a bleedle valve located between the two automatic gas valve seats.

Test point C is a bleedle valve located downstream of both automatic gas valve seats and upstream of the manual valve. Refer to Fig. 48.

These tests are to be conducted with the electrical power to the heater turned OFF.

1.Manually close the downstream leak test valve.

2.Open the bleedle valve at test point A and connect a manometer to it. Verify that there is gas pressure and that it is within the proper range (NOTE: must not exceed 14.0 in. WC).

3.Open test point B and connect a rubber tube to it. Connect the other end of the tube to a manometer and look for a build-up of pressure. Increasing pressure indicates a leaking gas valve which must be replaced.

4.Next, close the upstream manual gas valve (field supplied) and remove the manometers from the bleedle valves in test point A and test point B. Connect a rubber tube from the test point A blee- dle valve to the test point B bleedle valve and open the upstream manual gas valve. Make sure that test point A & B bleedle valves have been opened so as to allow gas to flow. This will bring gas pressure to the second valve seat.

5.Open the bleedle valve at test point C and connect a second rubber tube to it. Connect the other end of the tube to a manometer and look for a build-up of pressure. Increasing pressure indicates a leak- ing gas valve which must be replaced.

6.Remove rubber tube and manometers. Close each test point bleedle valve as the tubes are removed.

7.After no leakage has been verified at all valve seats and test valves, open downstream leak test valve and restore electrical power to the heater.

 

 

TO BURNER

GAS

A

B

CD

Fig. 48: Leak Test Procedure

44

Page 43 Page 45
Image 44
Page 43 Page 45
Contents Do so may result in an explosion or fire Reference Catalog no .53G Effective Replaces 241288 RevPage Contents Pay Attention to These Terms Before Installation Installations at ElevationProduct Receipt Model IdentificationComponent Locations General InformationWater Time to Produce Serious Temp Burn General SafetyTime/Temperature Relationships in Scalds Installation Installation CodesIndoor Installations Equipment BaseIndoor Units Outdoor InstallationsCombustion and Ventilation Air Table E Vent/Air Inlet Termination Clearances Installations Conventional Combustion Air SupplyAir Filter Direct VentGeneral Canadian InstallationsWater Piping Cold Water Operation Relief Valve Piping Temperature & Pressure GaugeHydrostatic Test Hydronic Heating Pump SelectionFeedwater Regulator Cold Water StartsModel 20F 30F 40F Min. Flow Max. Flow Gpm PipingAir-Separation/Expansion Tank Three-Way Valves Domestic Hot WaterPotable Water and Space Heating Pool HeatingMake final adjustments when pool water approaches Exceed 5 ppm Pool/Spa Water ChemistryWinterizing Your Heater Gas Supply Gas Supply ConnectionGas Supply Pressure Automatic Chlorinators Chemical FeedersElectrical Power Connections Model In. NPT 4 in. NPT 2 in. NPTManifold Gas Pressure Model High Fire ValuesMaking the Electrical Connections Check the Power SourceField-Connected Controllers Appliance Categories Field Wiring ConnectionVenting Vent Terminal Location InstallationsSupport of Vent Stack Venting Installation Tips Venting ConfigurationsCanadian Installations InstallationTermination CpvcVolume Common VentingVent Model Pressure Flue ProductsHorizontal Through-the-Wall Direct Venting Category Horizontal Through-the-Wall VentingDirect Vent-Vertical Model CertifiedCombustion Air Air Inlet Horizontal Max. Length** ft Vent 10 ØOutdoor Installation Operating Modes ControlsFreeze Protection Mode 2 Primary/Secondary Piping Mode 7 Primary/Secondary Piping with External Target Temp 10 VDC 20 mA Boiler Target Modes Default Setting Range10 VDC 20 mA Definitions Rank Number Field Type Fault DescriptionOperation High Limit-Manual Reset Heater Sequence of OperationIgnition Module Code ConditionHigh Limit-Auto Reset Optional Modulating Temperature ControlFlow Switch High & Low Gas Pressure Switches OptionalUDB Diagnostic Board Air Pressure SwitchBlocked Vent Switch Wiring Diagrams Models Models START-UP Pre Start-upPre Start-up Check Initial Start-upBlower Check PreparationStart-Up Safety Inspection Model Air Pressure Setting Setting in. WCModel Amp Draw Setting Manifold CheckLeak Test Procedure Dual-Seat Gas Valve Follow-UpPost Start-Up Check OperationLighting Instructions To Turn Off Gas To Appliance Troubleshooting StepSuggested Minimum Maintenance Schedule MaintenanceUDB Fault History Preventive Maintenance Schedule PeriodicallyWeekly Semi-AnnuallyAs Required Filter MaintenanceFilter Replacement Appendix Inside Air ContaminationImportant Instructions for the Commonwealth of Massachusetts Limited Parts Warranty MVB Types H and WH START-UP Checklist for FAN-ASSISTED Raypak Products
Related manuals
Manual 58 pages 52.53 Kb

503-2003 specifications

The Raypak 503-2003 is a notable entry in the world of water heating solutions, renowned for its efficiency and reliability in both residential and commercial settings. This model is designed to provide exceptional performance while maintaining ease of use and minimization of environmental impact.

One of the standout features of the Raypak 503-2003 is its advanced heating technology. The unit utilizes a durable, copper heat exchanger which ensures quick and efficient heating of water. This heat exchanger is known for its ability to transfer heat effectively, leading to reduced energy consumption and lower utility bills. The design also allows for a seamless operation, ensuring that the system heats water swiftly without sacrificing performance.

In addition to its efficient heating capabilities, the Raypak 503-2003 is equipped with innovative controls. The digital control panel allows users to easily set and adjust the desired water temperature. This feature provides a level of convenience that simplifies operation while enhancing user experience. Furthermore, the smart technology employed in the unit ensures that it operates within optimal parameters, avoiding unnecessary energy expenditure.

Durability is another hallmark of the Raypak 503-2003. Built with heavy-duty components, this water heating solution is designed to withstand the rigors of continuous use. The rugged construction ensures longevity, making it a cost-effective investment for homeowners and businesses alike. Moreover, the unit is designed to be resistant to corrosion and wear, further extending its lifespan and reliability.

The energy efficiency of the Raypak 503-2003 is a crucial characteristic that sets it apart from competitors. Rated with a high efficiency score, this model contributes to lower emissions and is environmentally friendly. It adheres to various energy standards, making it a suitable choice for those looking to reduce their carbon footprint while enjoying reliable water heating.

Noise reduction is another important feature of the Raypak 503-2003. Designed with quiet operation in mind, the unit operates with minimal noise pollution, allowing for a pleasant environment in both residential and commercial spaces.

In summary, the Raypak 503-2003 combines advanced heating technology, user-friendly controls, durability, and energy efficiency into a robust water heating system. This makes it an excellent choice for those in need of dependable and sustainable heating solutions. Whether for daily home use or for larger commercial applications, the Raypak 503-2003 stands out as a leader in its class.
Top Page Image Contents