Raypak 503-2003 manual Post Start-Up Check, Leak Test Procedure

Page 47

SECTION D: Start up

Fig. 40: Leak Test Procedure

Post Start-Up Check

Check off steps as completed:

1.Verify that the heater and heat distribution units or storage tank are filled with water.

2.Confirm that the automatic air vent (if used) was opened two full turns during the venting procedure.

3.Verify that air has been purged from the system.

4.Verify that air has been purged from the gas piping, and that the piping has been checked for leaks.

5.Confirm that the proper start-up procedures were followed.

6.Inspect burner to verify flame.

7.Test safety controls: If heater is equipped with a low water cut-off or additional safety controls, test for operation as outlined by manufacturer. Burner should be operating and should go off when con- trols are tested. When safety devices are restored, burners should re-ignite after pre-purge time delay.

8.Test limit control: While burner is operating, move indicator on high limit control below actual water temperature. Burner should go off while blower and circulator continue to operate. Raise setting on limit control above water temperature and burner should re-ignite after pre-purge time delay.

NOTE: Ignition control may have to be reset after this portion of the test.

9.Test ignition system safety device:

a.Open manual gas valve. Turn power on.

b.Set thermostat to call for heat.

c.When the heater is in operation, pull cap off of tee in air switch hose. The burner should go off almost immediately.

d.Reattach cap on tee. Burner should re-ignite after pre-purge time delay. NOTE: Ignition control may have to be reset after this portion of the test.

10.To restart system, follow lighting instructions in Section E.

11.Check to see that the high limit control is set above the design temperature requirements of the system.

For multiple zones: Check to make sure the flow is adjusted as required in each zone.

12.Check that the heater is cycled with the thermostat. Raise the setting on the thermostat to the highest setting and verify that the heater goes through the normal start-up cycle. Reduce to the lowest setting and verify that the heater goes off.

13.Observe several operating cycles for proper opera- tion.

14.Set the heater thermostat to desired temperature.

15.Review all instructions shipped with this heater with owner or maintenance person, return to enve- lope and give to owner or place the instructions inside front panel on heater.

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Contents Installation Operating Instructions Page Table of Contents PAY Attention to These Terms Model Identification Before InstallationSection a Product ReceiptWater Gas Vent Size Model Conn Input Installations at ElevationComponent Locations General InformationSection B Hot Water Supply General SafetyWater Temp Time to Produce Serious Burn Time/Temperature Relationships in ScaldsEquipment Base InstallationInstallation Codes Section CInstallations1 Canadian Installations2 Indoor Units Outdoor InstallationsHeater Min. Clearance Recommended From Combustible Service Combustion and Ventilation AirTruSeal Combustion Air InstallationsOptional Construction Air Filter Direct VentGeneral Canadian InstallationsWater Piping Cold Water Starts Relief Valve Piping Hydrostatic TestCold Water Operation ∆P ft Gpm Temperature & Pressure GaugeCold Water Run Model 20F∆T 30F∆T 40F∆T Min. Flow Max Flow Gpm ∆P ftDomestic Hot Water Hydronic HeatingPool Heating Potable Water and Space HeatingWinterizing Your Heater Automatic Chlorinators and Chemical FeedersPH of Water Gas SupplyPool/Spa Water Chemistry Water HardnessModel NPT 4 NPT 2 NPT Gas Supply ConnectionGas Supply Pressure Field-Connected Controllers Electrical Power ConnectionsCheck the Power Source Making the Electrical Connections Field Wiring ConnectionInlet Material VentingAppliance Categories Support of Vent StackVent Terminal Location Canada InstallationsVertical Venting Category Venting Installation TipsVenting Configurations InstallationCommon Venting Vent Size Volume Model Pressure Flue Products In. WCTermination Typical Common Venting Horizontal Through-the-Wall Direct Venting CategoryHorizontal Through-the-Wall Direct Venting Direct Vent Vertical Direct Vent VerticalFreeze Protection Outdoor InstallationControls Operation Operating ModesDefinitions Modulating Temperature Control User Interface Modes Default RangeModel 503 Heater Sequence of OperationModel 1753 Section C Installation Ignition Module Code Condition High Limit Manual ResetHigh Limit Auto Reset Optional Flow SwitchLow Water Cut-Off Optional Modulating Temperature ControlHigh and Low Gas Pressure Switches Optional Air Pressure SwitchUDB Diagnostic Board Blocked Vent SwitchModels Wiring DiagramsModels Section C Installation Pre Start-up Section DStart-up Initial Start-up Blower AdjustmentStart-Up Pre Start-up CheckManifold Adjustment Follow-Up Safety InspectionLeak Test Procedure Dual-Seat Gas Valve Post Start-Up Check Leak Test ProcedureSection D Start up To Turn Off Gas To Appliance Section EOperation Lighting InstructionsSection E Operation Section F TroubleshootingUDB Fault History Section G MaintenanceSuggested Minimum Maintenance Schedule Preventive Maintenance Schedule Inside Air Contamination Section HAppendix Limited Parts Warranty MVB Types H and WH
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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.
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