Lochinvar CF-CH(E)-i&s-08, 399 Radiant Floor and Snow Melt Heating Systems, 10ºF 20ºF 30ºF 40ºF

Page 37

Installation and

Service Manual

Radiant Floor and Snow Melt

Heating Systems

This type of heating boiler application operates in a low temperature range which requires a boiler bypass as described under Low Temperature Return Water Systems. A non-metallic rubber or plastic tubing installed in a radiant (in floor) system must have an oxygen barrier to prevent oxygen from entering the system through the walls of the installed tubing. Excessive oxygen absorption into the system will result in an accelerated rate of corrosion causing a sludge buildup. This excessive corrosion will also damage the boiler and system components. Sludge formed as the result of excessive oxygen in the system can restrict water flow resulting in a premature boiler failure. Any boiler damage due to excessive oxygenation is non- warrantable.

TABLE-P

System Temperature Rise Chart Based on Btu/hr Input

 

 

 

ΔT

 

 

ΔT

 

ΔT

 

ΔT

 

 

10ºF

 

 

20ºF

 

30ºF

40ºF

 

 

 

 

 

 

 

 

 

Input

Output

GPM FT. HD

 

GPM

FT.HD

GPM FT.HD

GPM

FT.HD

 

 

 

 

 

 

 

 

 

 

 

399,999

339,999

68

7.4

 

34

2.4

23

1.1

17

0.6

 

 

 

 

 

 

 

 

 

 

 

500,000

425,000

--

--

 

42

4.1

28

1.6

21

0.7

 

 

 

 

 

 

 

 

 

 

 

650,000

617,500

--

--

 

55

5.2

37

3.0

28

1.6

 

 

 

 

 

 

 

 

 

 

 

750,000

712,500

--

--

 

63*

7.2

42

4.1

32

2.3

990,000

841,500

--

--

 

83

5.4

55

2.6

42

1.5

1,260,000

1,071,000

--

--

 

107*

13

71

4.4

53

2.7

1,440,000

1,224,000

--

--

 

--

--

81

6.3

61

3.8

 

 

 

 

 

 

 

 

 

 

 

1,800,000

1,530,000

--

--

 

--

--

102*

11.8

76

6.6

2,070,000

1,759,500

--

--

-

--

--

--

--

87

9.0

*Requires Cupro-Nickel heat exchanger.

* CAUTION: The maximum flow rate for models 399,999 - 750,000 Btu/hr is 55 GPM and 90 GPM on models 990,000 - 2,070,000 Btu/hr. Do not exceed the maximum flow rate of the heating boiler.

If higher flow rates are required through the boiler, an optional Cupro-Nickel heat exchanger is available. When using a Cupro-Nickel heat exchanger, GPM can be increased by 30 percent. Consult the factory for specific application requirements.

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Contents Domestic Water Heaters Hydronic Heating Boilers and Domestic Water Heaters Unpacking General Product InformationSafety Information Installation Clearances from Combustible Construction InstallationLocation Outdoor Boiler InstallationFreeze Protection Pump OperationFreeze Protection for a Heating Boiler System if required Shut-Down and DrainingCombustion and Ventilation AIR Combustion Air FilterOutside Combustion Air, No Ducts Combustion Air OptionsCombustion Air from Interior Space Exhaust Fans VentingGeneral Information Vertical Vent Termination Clearances and LocationChimney Sidewall Vent Termination Clearances and LocationLength of Air Inlet Pipe Combustion Air Inlet PipingSidewall Air Inlet Clearances Vertical Rooftop Air InletCombined Air Inlet Points Vent System OptionsBarometric Damper Location Negative Draft Conventional Negative Draft VentingFlue Outlet Piping Vertical Vent Termination Clearances and Location Vertical DirectAire VentingVenting of Flue Products Installation Vent KitsSidewall Fan Sidewall VentingSidewall Venting Termination Sidewall Venting Without FanVenting Guidelines Horizontal DirectAire Venting Masonry Chimney InstallationDirect Venting Vent KitsVertical DV Venting Termination Horizontal DV Venting Termination Connecting the Air Inlet Pipe to the UnitFlue Pipe Materials Combustion Air Inlet PipingSealing PVC, CPVC, ABS, Dryer Vent, and Flex Duct Vent Pipe Air Inlet Piping MaterialsMaximum Outdoor Installation VentingOutdoor Vent Cap Kit Outdoor Vent/Air Inlet LocationConnecting Gas Piping to Unit Connecting to GAS SupplyGas Piping Gas Pressure TestTABLE-J Gas Train and ControlsBtu/hr Distance From Meter in feet Input 51-100 101-200 201-300 301-500Checking Gas Supply Pressure Combination Gas ValvesVenting of Combination Gas Valves Multiple Unit Installations Gas Supply Pipe Sizing Gas Manifold Pressure AdjustmentTable L Connecting to Water Supply Relief Valve Water Flow SwitchLow Water Cutoff Water Connections Heating Boilers Only General Plumbing RulesCirculator Pump Requirements Circulator Pump Specifications Heat Exchanger Pressure Drop ChartPump Installation and Maintenance Primary/Secondary Boiler PipingTable O LTV Valve Kits Low Temperature Return Water SystemsInput LTV Valve Kit Btu/hr 10ºF 20ºF 30ºF 40ºF Radiant Floor and Snow Melt Heating SystemsBoiler Flow Rate Temperature/Pressure GaugePlacing the Boiler in Operation Boiler Bypass RequirementsBoiler Operating Temperature Control Installation with a Chilled Water SystemTerminal Strip Connection Options Water TreatmentRemote ON/OFF Boiler or Water Heater For Your Safety Read Before OperatingOperation Quick Programming Overview Power UpTo Turn Off Gas To Appliance Standard Btu/hr ModelsAdjust Menu Settings for Operating Modes Adjust Menu Setting DescriptionsTABLE-Q TABLE-ROperating Modes Ignition Systems and StagesProgramming Buttons Temperature Control Access LevelsPlacement of Sensors Programming For Mode 1, Boiler Operation Graphic SymbolsStaging Logic Programming For Mode 3, Sequenced Operation Programming For Mode 2, Water Heating OperationRemote Mounting of Sensors TABLE-SHOT Surface Ignition System Error and Warning MessagesHot Surface Igniter and Ignition Control Module Hot Surface Ignition Control ModuleAccess to Internal Control Panel Diagnostic Status IndicationIgnition Control Diagnostic Codes Removing the Control PanelStatus LED Diagnostic Codes Operation and Diagnostic LightsIgnition and Control Timings Hot Surface Ignition Module Timings NominalTemperature Rise Chart Required Temperature RiseWater Velocity Control Water ChemistryCirculating Pump Pipe Size RequirementsTABLE-X 399,999 750,000 Btu/hr ModelsMinimum Pump Performance Potable Hot Water Temperature Control SettingsHeat Exchanger TABLE-YOptional Relief Valve High Water Temperature Limit ControlThermal Expansion Location of Cold Water Supply Piping ConnectionsBurner Removal and Cleaning Flue Gas Passageways Cleaning ProceduresAppliance Area Water Circulating PumpElectrical Heat Exchanger CleaningCombustion and Ventilation Air Set Up Procedure Adjusting Differential Air PressureAdjustment Procedure Ignition System Checkout Servicing Hot Surface Igniter and Ignition ModuleSequence of Operation Ignition Troubleshooting Guide 990,000 2,070,000 Btu/hr Models Domestic Water Heaters Hydronic Heating Boilers Ladder Diagram 399,999 750,000 BTU/HR Models Hydronic Heating Boilers and Domestic Water Heaters Installation Ladder Diagram 990,000 2,070,000 BTU/HR Models Models Wiring Diagram Hydronic Heating Boilers and Domestic Water Heaters BTU/HR Models
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Manual 76 pages 58.86 Kb

399, CF-CH(E)-i&s-08, 999 - 750 specifications

Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 is a cutting-edge boiler designed for commercial heating applications. With its robust construction and high efficiency, this model stands out in the crowded market of heating solutions.

One of the main features of the Lochinvar 999 - 750 is its exceptional thermal efficiency rating. The unit incorporates advanced condensing technology that allows it to recover heat from flue gases, which helps in achieving efficiency levels of up to 99%. This efficiency not only reduces energy consumption but also lowers operational costs, making it an excellent investment for businesses looking to minimize their carbon footprint.

The boiler is designed to provide a powerful output of 750 kW, ensuring it meets the heating demands of larger buildings or commercial spaces. Its capacity makes it suitable for a range of applications including schools, hospitals, and industrial facilities. Moreover, the unit features a built-in cascading system that enables multiple boilers to be connected, enhancing system reliability and flexibility.

In terms of technology, the Lochinvar 999 - 750 is equipped with a user-friendly touchscreen interface. This innovative control system allows operators to monitor and adjust settings with ease, providing real-time performance data and alerts for maintenance needs. The intelligent controls optimize operation to match the heating load, further enhancing energy efficiency.

Safety is a top priority with this model. It is built with multiple safety features such as automatic shut-off valves, pressure relief valves, and flame monitoring systems, ensuring safe operation under various conditions. The unit also adheres to stringent industry standards and regulations, making it a reliable choice for commercial applications.

Furthermore, the Lochinvar 999 - 750 is designed with serviceability in mind. Its compact footprint and accessible components simplify maintenance, reducing downtime and associated costs. The unit also supports a variety of fuel sources, including natural gas, propane, and biodiesel, providing flexibility to meet different facility requirements.

In summary, the Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 represents a blend of efficiency, reliability, and safety in commercial heating. Its advanced technologies and thoughtful design make it a powerful solution for various heating needs, making it an ideal choice for businesses aiming for excellence in energy management and operational efficiency.
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