Quantum GAS-FIRED BOILERS installation instructions Controls and Accessories

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CONTROLS AND ACCESSORIES

This section provides a brief description of the key controls and accessories found in this boiler.

See the Troubleshooting section of the Service Hints chapter of this installation manual for detailed sequences of operation and troubleshooting procedures. See the Repair Parts chapter of this manual for locations of all control components and accessories described.

A. INTEGRATED BOILER CONTROL (IBC)

The Integrated Boiler Control (IBC) is a microprocessor based controller for a high efficiency gas boiler that monitors all safety controls and which controls the operation of the combustion air blower, circulator pump, burner, and a combination hot surface igniter/flame sensor. This controller is not intended for use with a vent damper. This controller is mounted on the control panel inside of the boiler and contains four (5) diagnostic indicator lights.

B. GAS CONTROL VALVE

The electrically controlled 24 Volt Honeywell Model VR8205 Combination Gas Control Valve is designed to meet the requirements for use with hot surface ignition systems found in this boiler. The valve is piped to the gas/air mixer.

C. HOT SURFACE IGNITER

The 120 volt Hot Surface Igniter heats up to 1800 °F to initiate combustion of the gas in the burner. The igniter is mounted next to the burner through the gas/air mixer. The igniter also serves as a means for proving the main burner flame by flame rectification. In the event of a lack of flame signal on three (3) consecutive trials for ignition, the IBC will lockout. The “VALVE” and “FLAME” diagnostic indicator lamps (lamp “D” and “E” on the IBC, See Fig. 16) will blink indicating the failure mode as a lack of flame signal. The IBC is manually reset from lockout by either removing and reestablishing the thermostat’s call for heat, or by turning the service switch off, then back on.

D. HIGH LIMIT AQUASTAT CONTROL

The High Limit Aquastat Control determines the maximum boiler water temperature and also provides a means for protecting the boiler and heating system from unsafe operating conditions which could damage the boiler. The aquastat is mounted in the ½" NPT control well and ¾”x½” bushing on the top of the front boiler section at the hot water outlet. The aquastat is tied in with the IBC and is factory set at 180 °F water temperature. The high limit setpoint is field adjustable and may be set anywhere between 100 °F and 200 °F. The field setpoint adjustment for each installation depends on heating system requirements. The aquastat automatically resets when the boiler water temperature decreases (5-30 °F adjustable differential). The differential can be adjusted with the (white) Differential Adjustment Wheel on the aquastat and gives the flexibility for boiler operation. The larger the differential, the longer the run cycle of the boiler.

NOTE: The maximum setpoint of the Aquastat must not exceed 200 °F.

E. DRAFT INDUCER TEMPERATURE SAFETY SWITCH

The Draft Inducer Temperature Safety Switch is a disc thermostat (180 °F setpoint) located on the induced draft fan outlet port. The switch protects the inducer and vent pipe from a potential high temperature condition for the discharging flue gases. This condition would typically be a result of higher aquastat setting or over firing. The temperature safety switch automatically resets when the

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Contents Boilers Page Placing the Boiler Near Boiler Piping Electrical WiringControls and Accessories Combustion AIR and Vent PipeService Hints CHECK-OUT Procedures and AdjustmentsMaintenance and Cleaning Repair PartsIntroduction Boiler Ratings and Capacities Boilers for USE AT High Altitude$%/$02/1$785$/*$6+,*+$/7,785$7,1*6 $%/&02/1$785$/*$6+,*+$/7,785$7,1*6 Before Installing the Boiler Rules for Safe Installation and OperationCodes Boiler Sizing Considerations for Boiler LocationLocating the Boiler Combustion AIR and Vent Pipe RequirementsFoundation Requirements Placing the Boiler Removal of Existing Boiler from Common Vent SystemNear Boiler Piping Supply and Return LinesSingle Zone Boiler Piping Multi Zone Boiler Piping with Zone Valves Multi Zone Boiler Piping with Circulators Single Zone Boiler Piping Pressure Relief Valve Expansion Tank and MAKE-UP WaterDiaphragm Type Expansion Tank Piping Conventional closed type Expansion Tank Piping Condensate Drain Piping Chilled Water Piping Combustion AIR and Vent PipeConnections and Termination Page Roof VENT/INTAKE Terminations Sidewall VENT/INTAKE Terminations Combustion AIR and Vent Piping GAS Supply Piping InstallationCheck GAS Supply Connecting the GAS Piping Checking the GAS PipingElectrical Wiring Electric Power SupplyInstall Your Thermostat Dead Spots Cold Spots HOT SpotsField Wiring Connections Schematic Wiring Diagram Ladder Wiring Diagram Controls and Accessories Draft Inducer Casting Temperature Safety SwitchDifferential Pressure AIR Proving Switch Circulator PumpS.M.E. Rated Pressure Relief Valve Flame Rollout Safety ShutoffStart UP Optional External Condensate PumpRepeat for all remaining zones Operating Instructions To Turn OFF GAS to AppliancePage Inspect Condensate Drain Test Ignition System Safety Shutoff DeviceInspect Venting and AIR Intake System Inspect System PipingTest Other Safety Controls Test High Limit Control and AdjustMeasure the Natural GAS Input Rate Manifold Pressure Measurement Detail SET Thermostat to Desired Room Temperature Review ALL InstructionsInstallation and CHECK-OUT Certificate Beginning of Each Heating Season Maintenance and CleaningDaily During Heating Season Periodically During Heating Season Annual Examination and Cleaning of Boiler ComponentsMonthly During Heating Season END of Each Heating Season Annual Shutdown ProcedurPage Page Service Hints Detailed Sequence of Operation Detailed Sequence of Operation END of Normal Sequence of Operation Trouble Shooting Initial Service Checks667067$786 Troubleshooting Chart Trouble Shooting Trouble Shooting Trouble Shooting Trouble Shooting Trouble Shooting Differential AIR Pressure Switch Check Repair Parts $&.7$1%$6$660% 70180%5 37,21 48$17,7 Condensate Drain Trap Assembly 2116$75$,175$3$660% 70180%5 37,21 48$17,7Boiler Block and Piping Assembly 5%/2&.$13,3,1*$660% 70180%5 37,21 48$17,7 Mixer and AIR Pressure Switch Assembly $1$,53566856,7&+$660% 70180%5 37,21 48$17,7 Flue Adapter and Exhaust Assembly

GAS-FIRED BOILERS specifications

Quantum gas-fired boilers represent a significant advancement in the realm of residential and commercial heating solutions. These innovative systems efficiently utilize natural gas to deliver consistent heating, catering to a wide range of climates and applications. With rising energy costs and increasing environmental concerns, the adoption of gas-fired boilers has gained momentum, making them a popular choice for heating needs.

One of the main features of Quantum gas-fired boilers is their impressive energy efficiency. Modern gas boilers are designed to achieve high efficiencies, often ranging from 90% to 98%. This means that the majority of the energy consumed is converted into useful heat, significantly reducing fuel costs and environmental impact. Their ability to operate at such high efficiencies is largely due to advanced condensing technology, which captures and reuses the heat from exhaust gases, thus maximizing the energy extracted from the fuel.

Moreover, Quantum gas-fired boilers are equipped with advanced control systems that allow for precise temperature regulation. These systems can monitor changes in demand and adjust the operation of the boiler accordingly, ensuring that energy consumption is kept to a minimum without sacrificing comfort. This not only promotes energy savings but also extends the lifespan of the appliance.

In addition to efficiency and control, modular design is another important characteristic of Quantum gas-fired boilers. Many models are available in compact sizes, making them suitable for diverse installation environments, including tight spaces and urban areas. Their versatility allows for installation in various configurations, including wall-mounted and floor-standing units, which can be tailored to fit the specific requirements of a heating system.

Moreover, modern Quantum gas-fired boilers come with features that enhance user experience and maintenance. Many incorporate built-in diagnostic tools that indicate potential issues before they become significant problems, facilitating timely interventions and reducing downtime. Some models even offer connectivity features, enabling remote monitoring and control through smartphone applications.

In summary, Quantum gas-fired boilers deliver exceptional energy efficiency and reliability, employing advanced technologies such as condensing methods and smart controls. Their modular design and user-friendly features make them an appealing choice for anyone seeking a high-performing heating solution. As the demand for sustainable and cost-effective heating solutions continues to rise, Quantum gas-fired boilers are poised to play a crucial role in meeting the world's heating needs.
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