Raypak 992B manual Models 2002B 2342B

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60.If ignition module two locks out, a signal will be sent to the Universal Diagnostics Board and to the status display board to indicate an ignition fault.

61.The coil of relay K-5 (N.O.) is now energized with the (K-5) contacts closing downstream of the stage 4 connections.

62.Power is now applied to time delay relay 3 and the contacts of TD-3 close after 5 seconds.

63.The stage 4 controller contacts close.

64.Power is applied to gas valve 4.

65.The stage 4 LED on the status display board is now illuminated.

66.The heater is operating at full fire.

Models 2002B – 2342B

1.The black (hot) wire lead goes directly to the main power switch. This black toggle switch is located at the middle front of the control compartment.

2.When the main power switch is placed in the “ON” position, 120 VAC is applied to the 120 VAC termi- nal block on the circuit board and the 120/24 VAC transformer is powered.

3.120 VAC is waiting at the N.O. contacts of the Economaster II pump delay.

4.Terminals L1 and F1 of the ignition module are powered with 120VAC.

5.120 VAC power is also applied to the control power connector on the circuit board.

6.120 VAC power is waiting at the N.O. contacts of K-3 relay to energize the heater blower.

7.The 120/24 VAC transformer outputs 24 VAC.

8.24 VAC is sent to pin L1 of the low water cut-off (optional) and the red power light is energized.

9.24 VAC is applied to the blue power light located on the status display board.

10.24 VAC is also applied to the red LED safety shut- down light on the front status board until the safeties have been proven.

11.24 VAC is applied to the alarm circuit (optional). If the E-5 sales option (Alarm) is included a 5 sec- ond time delay relay will not allow the alarm to sound unless a safety or limit circuit stays ener- gized for more than 5 seconds.

12.Power is applied to terminal P1-1 of the Universal Diagnostics Board. 24 VAC power is then applied in series to all typically closed safeties wired into the heater. All safeties are verified to ensure that it

is safe to operate the heater. The safety components wired into the diagnostic board are: low water cut-off (optional), blocked vent switch, manual vent temp switch (optional), manual reset high limit, low gas pressure switch, high gas pressure switches (optional), and auto- reset high limit (optional).

13.If any of the safeties do not close, a signal is sent to the Universal Diagnostics Board to indicate a safety fault.

14.Power is applied to terminal TP-1 of the Economaster II pump delay to energize the circuit board.

15.Once all safeties are closed and verified, a 24 VAC signal is output from the Auto High Limit to J5 pin 3 of the CPW board of the heater.

16.24 VAC power is now sent to the coil of relay K-1.

17.Relay K-1 (N.C.) will now be energized, and opens the N.C. contacts to disable the alarm (optional) and turns off the red LED safety shutdown light on the front status board.

18.The common terminal of the Auto High Limit will now send a 24 VAC signal to pin 1 of the “panel switch”.

19.The “panel switch” (rocker switch) located at the lower left front of the control compartment is now powered. If the switch is “ON” and there is no call for heat (CFH), the heater is in standby mode.

20.After the standby switch is placed into the “ON” position, a 24 VAC signal is sent to the “enable/disable” connection (normally jumpered).

21.24 VAC switched power is applied to the S24V ter- minal on ignition modules 1 and 2.

22.When the “enable/disable” contacts are closed, the 24 VAC signal travels to pin 1 of the stage 1 connection and waits for a CFH.

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Contents Installation & Operating Instructions Page Contents Pay Attention to These Terms Model Identification Before InstallationInstallations at Elevation Product ReceiptComponent Locations Back Component LocationsModel Burners per Valve Stages Fire at Stage General InformationModel Quantity Vent Size Gas Burners Blowers ValvesGeneral Safety Time/Temperature Relationships in ScaldsWater Time to Produce Serious Temp Burn Stacking InstallationInstallation Codes Equipment BaseTable D Vent/Air Inlet Termination Clearances Indoor Installations Outdoor InstallationsClearances Indoor Units Combustion and Ventilation AirReversing Air Filter Direct VentAll Air from Inside the Building InstallationsConventional Combustion Air Supply TruSeal Combustion AirReversing Water Connections Canadian InstallationsWater Piping GeneralCold Water Operation Relief Valve Piping Hydrostatic TestTemperature & Pressure Gauge Hydronic HeatingPump Selection Three-Way Valves Pressure Drop in Feet of Head Feedwater RegulatorPiping Air-Separation/Expansion TankPool Heating Potable Water and Space HeatingWinterizing Your Heater Automatic Chlorinators and Chemical FeedersTotal Dissolved Solids Gas SupplyPool/Spa Water Chemistry Water Hardness PH of WaterTable I Maximum Equivalent Pipe Length Gas Supply ConnectionReversing Gas Supply Connection ModelField-Connected Controllers Electrical Power ConnectionsCheck the Power Source Gas Supply PressureMaking the Electrical Connections Field Wiring ConnectionOn-Off Wiring Connections Appliance Categories VentingFlue Exhaust Tee Model Diameter Order NumberCertified Combustion Air Support of Vent StackVent Terminal Location Combustion ExhaustInstallations Canadian InstallationsChanging the Flue Outlet Natural Draft Vertical Venting Category Venting Installation TipsVenting Configurations InstallationHeight TerminationCommon Venting System Certified Vertical Venting Combustion Air Air Inlet ModelHorizontal Through-the-Wall Venting Category Horizontal Through-the-Wall Venting CategoryEquivalent Direct Vent Horizontal Through- the-WallModel Certified Maximum Combustion Air Inlet VentingDirect Vent Vertical Direct Vent VerticalOutdoor Installation ControlsFreeze Protection Models 992B-1262B Heater Sequence of OperationExternal Lights Color Indication Models 1532B 1802B Page Page Models 2002B 2342B Page Page Operating Control High Limit Manual ResetFlow Switch Ignition ModuleLow Water Cut-Off Optional High and Low Gas Pressure SwitchesPump Time Delay UDB Diagnostic BoardUDB Fault History 87%-Efficiency Boilers Special Instructions Water PipingVenting Appliance Categories Vertical Venting Category Vent Terminal LocationCondensate Management Combustion 40’ 75’ 2072BE Air 2342BE Certified Maximum Combustion Air Air Inlet Model VentingDirect Vent Horizontal Through- the-Wall 992BE 75’ 100’ 1262BE Galvanized Steel 1532BE Category 25’ Wiring Diagram-Models 992B-1262B Wiring Diagram-Models 1532B-2342B Pre Start-up START-UPBlower Adjustment Main Burner AdjustmentStart-Up Pilot Turn-Down Test Safety InspectionLeak Test Procedure Dual-Seat Gas Valves Follow-UpLeak Test Post Start-Up CheckOperation Lighting InstructionsTo Turn Off Gas To Appliance Step TroubleshootingMaintenance Suggested Minimum Maintenance SchedulePreventive Maintenance Schedule As Required WeeklySemi-Annually AnnuallyInside Air Contamination AppendixLimited Parts Warranty HI Delta Types H and WH Limited Parts Warranty HI Delta Type P START-UP Checklist for FAN-ASSISTED Raypak Products Page Page Page

992B specifications

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