Delta PG PLUS-25 warranty Check Low Water Cut-Off Device

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Start-Up Preparations

3.Fill the outer tank to correct system pressure. Correct pressure will vary with each application.

NOTICE

Typical residential system fill pressure is 12 psi. System pressure will increase when system temperature increases. Operating pressure of the system should never exceed 25 psi.

4.Allow air to escape from the outer tank by opening the automatic air vent provided with the PERFORMANCE PLUS.

5.Purge air in each zone of the primary sys- tem through the purge valve. Open air vents to allow air to be purged in the zones.

6.Once the system is completely filled and purged of all air, check the system pressure and check for leaks.

Check Low Water Cut-Off Device

- The PERFORMANCE PLUS is pro- vided with a factory installed Low Water Cut-Off device that measures system pressure of more than 10 psi.

-Remove the front jacket panel and check for continuity across the low water cut- off device wire terminals. The contacts should be closed when system pressure is greater than 10 psi.

Check For Gas Leaks

WARNING

Prior to start-up and during initial opera- tion, smell near the floor and around the unit for gas odorant or any unusual odor. Do not proceed with the start-up if there is any indication of a gas leak. Any leaks found must be repaired immediately.

WARNING

DO NOT adjust or attempt to measure gas valve outlet pressure. The gas valve is factory-set for the correct outlet pres- sure. This setting is suitable for natural gas and propane and requires no field adjustment. Attempts by the installer to adjust or measure the gas valve outlet pressure could result in damage to the valve, causing potential severe personal injury, death or substantial property damage.

WARNING

Propane installations only - The propane supplier mixes an odorant with the propane to make its presence detectable. In some cases the odorant can fade and the gas may no longer have an odor.

Prior to start-up of the unit and periodi- cally after start-up have the propane supplier check and verify the odorant level.

Table 3 : Pressure Switch Setting

PG PLUS	Natural Gas	Propane
Model	(inch w.c.)	(inch w.c.)

PG PLUS-25	1.84 " w.c. (yellow)	1.84" w.c. (yellow)
PG PLUS-30	2.7" w.c. (red)	2.7" w.c. (red)
PG PLUS-35	2.7 " w.c. (red)	2.7" w.c. (red)
PG PLUS-40	2.7 " w.c. (red)	3.35" w.c. (blue)
PG PLUS-45	2.7 " w.c. (red)	3.35" w.c. (blue)

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Contents PG PLUS-25/30/35/40 Gas Fired Combination Heaters For Your SafetyTable of Contents Section V Primary Piping Section VI Vent / Combustion AIR InstallationSection X START-UP Preparation Section Viii Internal WiringSection IX External Wiring Section VII GAS PipingSection XIV Installation Record Section XI START-UP ProceduresSection XII Temperature Limits Section Xiii CHECK-OUT ProceduresProduct Specifications Section Xvii Replacement PartsProduct & Safety Information To Protect Against Excessive Temperature and Pressure Do not try to light any appliance What to do if YOU Smell GASHomeowner Operating Restrictions Determining Product Location Pre-Installation Items Section I Pre-Installation ItemsBoiler Replacement Code ComplianceResidential Garage Installations Pre-Installation ItemsVenting Combustion Air and Venting Section II Combustion AirAir Openings Methods of Accessing Combustion Air Into a SpaceCombustion Air and Venting Combustion Air RequirementsEquipment Located in Confined Spaces One Permanent Air Inlet Outdoor Combustion AirVent System Combination of Indoor and Outdoor Combustion AirRemoval of an Existing Boiler f rom a Common Vent System Hydrostatic Pressure Test Hydrostatic Test ProceduresUnit Preparation Section III Unit Preparation Handling InstructionsCompletion of Hydrostatic Test and Draining Unit PreparationDomestic Piping Section IV Domestic Piping Domestic Piping Mixing Valve Assembly Multiple Units InstallationTR/SMART Series Application Domestic Piping DiagramsPerformance Plus With Recirculation Performance Plus with Storage Tank Primary Piping Section V Primary Piping Sizing Primary Piping Primary PipingCloset Zero Clearance Applications System Piping Zone CirculatorsPersonal injury, death or substantial property damage System Piping Radiant Heating with Mixing ValvePrimary Piping Near Appliance Piping Primary piping Zoning with Circulators Primary Piping Low Temperature Radiant System Primary Piping General Requirements Venting and Combustion Air Installation Section VI VentingCategory IV Vent Termination Clearances Venting and Combustion Air InstallationLocating the Combustion Air Inlet Multiple Vent TerminationsVenting Option Non Direct Vent / Vertical Venting Option Non-Direct Vent / Horizontal Venting Option Direct Vent / VerticalHorizontal Wall Thimble Kit Venting Option Direct Vent / HorizontalVent Appliance Adapters Excessive Horizontal Vent RunsDetermining Piping Lengths Allowable Equivalent Length Combined Vent and Combustion Air Standard Horizontal Venting Installation Location of Air Inlet Termination Venting and Combustion Air Installation Recommended Gas Supply Piping Section VII Gas PipingPipe Sizing Natural Gas Natural GASNatural Gas Supply Pressure Requirements Pipe Sizing Propane Gas Propane GASPropane Gas Supply Pressure Requirements Wiring must be N.E.C Class Internal Wiring Section Viii Internal WiringFactory Wiring Schematic Internal WiringFactory Internal Wiring Line Voltage Connections External Wiring Section IX External WiringInstallation Compliance Outdoor Temperature LimitMultiple Zone Field Wiring Using Zone Valves External WiringField wiring with zone circulators Typical Zone Relay Panel Wiring Performance Plus Section X Start Up PreparationFilling the Outer Primary Tank and System Check Low Water Cut-Off Device Air Shutter Settings Verify Correct Pressure SwitchCheck Thermostat Circuit If Performance Plus Does Not Start Correctly Start-Up ProceduresFinal Checks Before Start-up Performance Plus Start-upOperating Instructions For Your Safety Read Before LightingFollowing instructions must be followed exactly, a fire or Or loss of lifeNatural Gas Propane Recommended Secondary Thermostat Setting Temperature Limits Section XII Temperature LimitsTemperature Limits Section XIII- Check-Out Procedures Section XIV Installation Record General Section XV Maintenance ScheduleService Technician Owner MaintenanceCheck the Surrounding Area Section XVI Maintenance ProceduresInspect the Burner Area Check Expansion Tank Check Combustion/ Ventilation Air OpeningsInspect Vent System and Combustion Air Piping Check Domestic SystemCheck Thermostat Limit Settings Check Temperature / Pressure Relief ValveCheck Ignition Wiring and Ground Wiring Check Control WiringCheck Combustion Levels Check Burner Flame Flame SignalReview With Owner Section Xvii Replacement Parts Jacket Components Control Panel Components Electrical Panel Components Burner Components Specifications Graph 1 Performance Plus Pressure Loss Primary Side Maxi-flo Pool and Spa Heat Exchangers TTP Brazed Plate Heat Exchangers