Raypak B0109, B0147 HOW Your Water Heater Works, Mains Pressure, Models, On/Off Operation

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HOW YOUR WATER HEATER WORKS

The water heater consists of a gas burner, a combustion chamber lined with refractory tiles and a heat-exchanger made of finned copper tubes. Hot flue gases from the burner pass between the fins on the heat exchanger tubes and heat is transferred first to the fins and then by conduction into the water. Baffles are placed between the tubes to control the flow of the hot flue gases and ensure efficient operation of the water heater. The refractory tiles insulate the combustion chamber to minimise loss of heat and protect the surroundings from the temperature of the burner flames. The gas supply to the burner is controlled by a thermostat, which senses the temperature of the water.

Automatic safety controls are fitted to the water heater:

•to ensure safe ignition of the gas whenever there is a call for heating;

•to continuously monitor the burner flame; and

•to prevent excessive temperatures or pressures in the water system.

MAINS PRESSURE

In water heating applications, the water heater is designed to operate in conjunction with one or more hot water storage tanks, which would be connected directly to the mains water supply. If the mains supply pressure in your area exceeds the value shown in the table on page 15 or the maximum inlet pressure for the storage tanks, a pressure limiting valve must be fitted.

In mechanical and process heating applications, the system pressure must not exceed the value shown in the table on page 15.

109MODELS

On/Off Operation

109 On/Off models are fitted with a mechanical thermostat, adjustable from 0°C to 95°C that operates the gas control by switching its power on and off, so a constant temperature is maintained. The thermostat and the protective over temperature cut out are mounted on the control panel which is located behind the lower front cover of the water heater (refer to "Location of Controls" on page 29).

There is no need to switch the water heater off when it is not in use. The thermostat is fully

automatic and only allows the gas control to open when the burner requires gas for heating. To adjust the thermostat settings refer to “Temperature Control” on page 35.

Hi/Lo Operation

109 Hi/Lo models are fitted with a mechanical thermostat, adjustable from 45°C - 85°C that operates the gas control by switching its power from high fire to low fire and off, so a constant temperature is maintained. The thermostat and the protective over temperature cut out are mounted on the control panel which is located behind the lower front cover of the water heater (refer to "Location of Controls" on page 29).

There is no need to switch the water heater off when it is not in use. The thermostat is fully

automatic and only allows the gas control to open when the burner requires gas for heating. To adjust the thermostat settings refer to “Temperature Control” on page 35.

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Contents Raypak Water Heaters Patents Contents HOW HOT should the Water BE? Temperature AdjustmentAbout Your Water Heater Model TypeWhat to do if YOU Smell GAS? SafetyTo Turn OFF the Water Heater HOW Long will the Water Heater LAST? HOW do I Know if the Water Heater is Installed CORRECTLY?To Turn on the Water Heater Does the Water Quality Affect the Water HeaterOn/Off Operation HOW Your Water Heater WorksMains Pressure ModelsAll 109 and 147 Hi/Lo Models Burner Ignition147 On/Off Models Water Heater not Operating Save a Service CallDiagnostic Features of Electronic Thermostat Not Enough HOT Water or no HOT WaterHigh GAS Bills Burner will not LightPressure Relief Valve Running Expansion Control Valve RunningExpansion Control Valve ServiceRegular Care Pressure Relief ValveWater Heater Location InstallationIndoor Installation Inspection of EquipmentSafe Tray Clearances Indoor InstallationsOutdoor Installation Combustion / Ventilation AIRInstallation Cold Water Supply High Wind ConditionsTank Water Supply Indoor Conversions HOT Water Delivery Water Heating ApplicationsReducing Heat Losses Water Heating Applications Hood Conversion109 Dimensions and Technical Data147 Models Pipe Sizes Connections PlumbingWater Inlet and Outlet GAS InletRelief Valve Drain Model Pump Branch Size Minimum Manifold HeaderPump Selection Relief Valve Pressure RatingWater Heating Typical Mechanical Heating InstallationTypical Water Heating Installation Mechanical HeatingIntermittent Pump Operation Thermostat SettingConnections Electrical 109 147 On/OffControl Panel Access Wiring a Power Flued System to the Water HeaterBuilding Management System BMS Wiring Diagram 109 ON/OFF Models Wiring Diagram 109 HI/LO Models Wiring Diagram 147 ON/OFF Models Wiring Diagram 147 HI/LO Models Multi Pump Option Mechanical Heating Systems Rating Label Location of ControlsThermostat GAS ControlAfter Handling Safety PrecautionsWhen Handling During First Firing of the Water HeaterPRE-START Checks CommissioningOperational Checks Operating the Water Heater To Reset the Water HeaterGAS Pressure Adjustment 109 On/Off Models Burner Pressure AdjustmentGAS Inlet Pressure 147 Hi/Lo Models 109 Hi/Lo ModelsDifferential Adjustment Temperature ControlThermostat Adjustment 147 On/Off models AKO Thermostat Set Point Adjustment147 Hi/Low Models CTX Thermostat Set Point Adjustment Water Heating Applications 90C maximum HIGH-LIMIT Thermostat AdustmentSix Monthly Service Procedure Service ProceduresAnnual Service Procedure Saturation Index Water SuppliesChange of Water Supply Water Quality Charts Warranty Exclusions Warranty131 031 Australia Raypak Water Heater Warranty Australia only96109147B

B0109, B0147 specifications

Raypak is a well-established name in the world of heating technology, particularly recognized for its efficient and reliable pool and spa heaters. Among their range, the Raypak B0147 and B0109 models stand out for their performance and advanced features designed to enhance user experience.

Both the Raypak B0147 and B0109 models prioritize efficiency, making them ideal choices for residential or commercial swimming pools. They are engineered to deliver reliable heating, ensuring that water maintains a comfortable temperature no matter the season. One of the standout features is their compact design, which allows for easy installation in various settings without requiring extensive modifications to existing infrastructure.

A key characteristic of the Raypak B0147 is its digital control system. This advanced technology allows users to set precise temperatures and monitor heater performance. The intuitive interface makes it user-friendly, facilitating adjustments on-the-fly. The B0109 model, meanwhile, offers robust heating capabilities, featuring a high-output design that can rapidly elevate water temperatures, perfect for pools with significant heat loss.

Both models utilize a copper-fin-tube heat exchanger, which enhances heat transfer efficiency and extends the lifespan of the heater. This design not only improves thermal efficiency but also ensures that users experience lower energy bills over time. They also come equipped with a dependable ignition system, featuring an automatic spark ignition that eliminates the need for pilot lights, leading to improved safety and reliability.

Durability is another hallmark of the Raypak line. Both models are constructed with materials designed to withstand harsh weather conditions and exposure to pool chemicals, ensuring longevity. The corrosion-resistant housings prevent degradation, maintaining the heater's performance over time.

In summary, the Raypak B0147 and B0109 models deliver outstanding heating performance through efficient technology and durable construction. Their user-friendly controls, compact design, and energy-efficient heat exchangers make them excellent choices for pool owners looking to optimize their heating solutions. With Raypak, users can enjoy comfortable water temperatures year-round, backed by reliable technology and impressive efficiency.
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