Five Star Sr200na, Sr200lp,, Sr333na, Sr333lp,, Sr400na, Sr400lp Description of the Heater

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DESCRIPTION OF THE HEATER

 

Gas

 

Air

 

Exhaust

 

 

Blower

 

Mixer

 

Inlet

 

 

(Cold

 

 

Water)

 

 

Outlet

Burner

 

(Mixed

Heating Coils

Water)

 

 

FIGURE 2

Figure 2 is a diagram of the heater showing how it operates. Precisely matched orifice plates meter the air and gas into the mixer. The blower draws the air and gas through the mixer and forces it into the burner’s flameholder. A sealed heat exchanger surrounds the flameholder, discharging exhaust gases out the flue.

Two inch PVC water piping connects directly to the mani- fold/header on the heat exchanger using 2” PVC slip unions provided with the heater. The outer manifold remains cool; no heat sinks are required. A thermal regulator and an inter- nal bypass regulate the water flow through the heat exchanger to maintain the correct outlet temperature.

A plastic jacket with the top half split for access surrounds the assembly. The heater control board assembly, set into the top of the jacket, contains the operating controls.

SEQUENCE OF OPERATION

An electronic temperature sensing thermistor in the mani- fold adapter inlet controls the heater operation. When the inlet water temperature drops below the temperature set on the operating control, the burner controller supplies power to the combustion air blower through a series of safety interlocks. The interlocks consist of

the pressure switch (PS), which senses that the pump is running,

the high limit switch (HLS), which opens if the heat exchanger outlet temperature goes above 135°F, and

the automatic gas shutoff (AGS) switch, which opens if the heat exchanger outlet temperature goes above 140°F.

the stack flue sensor (SFS), which shuts down the heater if the flue gas temperature reaches 500°F.

The air flow switch (AFS) senses the pressure drop across the air metering orifice. As soon as there is sufficient air flow, the AFS closes, closing the circuit to the hot surface ignition (HSI), which ignites the fuel mixture.

On a call for heat, the blower and HSI are energized. In about 20 seconds, the gas valve opens and ignition occurs. The HSI then switches to a sensing mode and monitors the flame.

The heater is equipped with a digital operating control that enables the user to pre-set the desired pool and spa water temperatures. The control enables the user to select between pool and spa heating, and features a digital dis- play that indicates the water temperature.

OWNER’S OPERATING

INSTRUCTIONS

FOR YOUR SAFETY READ BEFORE OPERATING

IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

START-UP AND OPERATION

START-UP AND SHUTDOWN INSTRUCTIONS ARE ON THE LABEL ATTACHED TO THE COVER OF THE APPLI- ANCE CONTROL BOX.

BEFORE START-UP

A.This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.

B.BEFORE OPERATING check for odor. Sniff all around the appliance area for gas. Be sure to sniff next to the floor, because some gas (such as propane) is heavier than air and will settle on the floor.

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Contents Special Instructions to Owner Sta-Rite Pool/Spa GroupTo Installer To ConsumerSafety Instructions Description of the Heater OWNER’S Operating InstructionsSequence of Operation START-UP and OperationWhat to do if YOU Smell GAS SPA Temperature CautionOperating Instructions To Turn OFF GAS to the Appliance Operating ControlAfter START-UP Care and Maintenance Maintenance InstructionsInstallation Instructions Putting the Heater Into ServiceOutdoor Installation Instructions Heater Clearances OutdoorIndoor Installation Instructions Installation in a Garage Or Utility RoomControl Panel Indexing Heater Clearances IndoorCombustion and Ventilation AIR Supply Indoor Vent InstallationOutside Vent Cover Removal Metal Flue Collar Sta-Rite Part No Vertical Venting Negative PressureMin. Height Minimum Height Connecting Special GAS Vent to the HeaterRoof Pitch Above Roof Min Brand Manufacturer Material Type SealantWater Connections Special Gas Vent Vertical or Horizontal No. of 90 ElbowsWater Piping Cool WaterWater Flow Rate Water ChemistryModel Minimum Flow Maximum Flow 200 120 333 400 Chemical ValuesWater Pressure Switch Pressure Relief ValveConnect Gas Valve to End Cap Air Orifice Pressure Testing Supplying Power to the HeaterElectrical Wiring GAS ConnectionsFIREMAN’S Switch Connection FuseMaximum Temperature SET Point Max Temperature Set Point ControlsDoes red Service Initial TroubleshootingHeater LED come Heater Will Not Fire a StartHeater Will Not Fire B ContinueHeater Will Not Fire C Heater Will Not Fire D Diagnostic LED’s AGS, AFS, HLS, PS, Thermistor Do not jumper a safety switch to remedy a failed switchDiagnostic LED’s SFS SFS onBurner Troubleshooting Heat Exchanger TroubleshootingRepair Parts are available from your Sta-Rite dealer 2692 Repair Parts Burner System Repair Parts Water System Repair Parts Electrical System Pool Heater Wiring Connection Diagram Pool Heater Electrical Schematic Ladder Diagram Page Page Warranty Registration Card