Raypak 399B-2339B operating instructions Models 989B-2339B

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45. The Heater is now operating at full fire.

Models 989B–2339B

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 pump delay relay.

4.Terminals L1 and F1 of the ignition module 1 are powered with 120VAC.

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

6.Terminals L1 and F1 of the ignition module 2 are powered with 120VAC (1529B-2349B only).

7.120 VAC power is waiting at relay contacts K-4 to energize the heater blowers.

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

9.24 VAC is sent to power terminal L1 of the low water cut-off board (optional).

10.24 VAC is applied to the red LED safety shutdown light on the front of the unit.

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 the circuit stays energized for more than 5 seconds.

12.Power is output from terminal J5-24V of the CPW board to all of the safeties. All safeties are verified to ensure that it is safe to operate the heater. The safety components wired into the diagnostic board are: Manual reset high limit, low water cut-off (optional), blocked vent switch, low gas pressure switch, and high gas pressure switch(s) (optional).

13.Once all safeties have been verified to be closed a 24 VAC signal is sent to pin P3-16 of J-5 on the CPW board.

14.24 VAC power now leaves pin P3-16 of J-5 on the CPW board and is sent to the auto-reset high limit (optional). If closed the power now goes to termi- nal P1-4 of J-5 on the CPW board.

15.Power is applied to terminal 24V of the pump delay relay to energize the timing circuit.

16.Relay K-1 (N.C.) will now be energized, and opens the N.C. contacts to disable the alarm (optional) and turn off the red safety shutdown light.

17.Terminal J4-24 on the CPW board will now output a 24 VAC signal to pin 1 of the “standby switch”.

18.The “standby 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.

19.The “standby 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.Power is applied to the coil of K-3. (If an ignition lockout occurs, ignition module 1 closes contacts allowing the 24VAC from K-3 to go to ground and closes the contacts to allow the unit to fire at stage 3.)

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

22.24 VAC switched power is applied to the 24VAC terminals on ignition modules 1 and 2.

23.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.

24.Power is now sent to terminal TRIG of the pump delay relay to energize it.

25.The heater pump is energized.

26.Upon sufficient flow from the heater pump, the flow switch contact will close.

27.A 24 VAC signal is now sent to the “TH” terminal located on ignition module 1 and to the N.O. con- tacts of K-2 and K-3.

28.Once the 24 VAC “TH” signal is received, a 120 VAC signal is sent from F2 on ignition module 1 to

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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 LocationsBurners per Valve Stages Fire at Stage General InformationWater Time to Produce Serious Temp Burn General SafetyTime/Temperature Relationships in Scalds Stacking InstallationInstallation Codes Equipment BaseTable D Vent/Air Inlet Termination Clearances Clearances Indoor InstallationsOutdoor Installations Conventional Combustion Air Supply Combustion and Ventilation AirAll Air from Outdoors Canadian InstallationsHydrostatic Test Water PipingGeneral Reversing Water Connections Relief Valve PipingCold Water Starts Cold Water OperationModels 399B-899B Models 989B-2339B Cold Water Run Temperature & Pressure GaugeHydronic Heating Pump SelectionThree-Way Valves Pressure Drop in Feet of Head Feedwater RegulatorPiping Air-Separation/Expansion TankPotable Water and Space Heating Gas SupplyTable I Maximum Equivalent Pipe Length Gas Supply ConnectionModel Reversing Gas Supply Connection Models 399B-2339B Adjustment Models 989B-2339BGas Supply Pressure Making the Electrical Connections Electrical Power ConnectionsCheck the Power Source Field-Connected ControllersOn-Off Wiring Connections Field Wiring ConnectionStage Wiring Connections Single Stage Tankstat Barometric Damper VentingSupport of Vent Stack Vent Terminal Location InstallationsChanging the Flue Outlet Venting Installation TipsCanadian Installations Termination Venting ConfigurationsInstallation Natural Draft Vertical Venting CategoryMaterial Min SizeHorizontal Through-the-Wall Venting Category Horizontal Through-the-Wall Venting CategoryMaterial Vent Length Freeze Protection Outdoor InstallationControls External Lights Color Indication Heater Sequence of OperationModels 399B-899B Page Models 989B-2339B Models 1529B-2339B Only Operating Control High Limit Manual ResetFlow Switch Ignition ModuleLow Water Cut-Off Optional High and Low Gas Pressure SwitchesWiring Diagram Models 399B-1259B Wiring Diagram Models 1529B-2339B Pre Start-up START-UPStart-Up Blower AdjustmentMain Burner Adjustment Pilot Turn-Down Test Safety InspectionLeak Test Procedure Dual-Seat Gas Valves Follow-UpLeak Test Post Start-Up CheckTo Turn Off Gas To Appliance OperationLighting Instructions Step TroubleshootingPreventive Maintenance Schedule MaintenanceSuggested Minimum Maintenance Schedule As Required WeeklySemi-Annually AnnuallyInside Air Contamination AppendixLimited Parts Warranty Delta Limited Types H and WH START-UP Checklist for FAN-ASSISTED Raypak Products

399B-2339B specifications

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