Lochinvar 51-211 operation manual Oiled bearing circulators, Heat Exchanger Cleaning Kits

Page 77

12 Maintenance (continued)

Table 12B Heat Exchanger Cleaning Kits

Model

Kit

Part

Component

Number

Number

Description

 

 

 

CTN20005

Rear Refractory Cover

51 - 106

KIT30062

MSC20083*

Nylon 4" Wheel Brush*

 

 

MSC20085

1/4" x 12" Drill Extension

 

 

CTN20005

Rear Refractory Cover

151 - 211

KIT30063

MSC20083*

Nylon 4" Wheel Brush*

MSC20084

3mm Allen Wrench

 

 

 

 

MSC20086

1/4" x 24" Drill Extension

￿CAUTION * Do NOT use a metal brush. Only use the kit provided brush or an equivalent

replacement nylon brush.

Figure 12-3Rope Gasket - Heat Exchanger Door

ROPE GASKET

CAUTION: IF GASKET IS DAMAGED

DO NOT REUSE, THE HEAT EXCHANGER DOOR

MUST BE REPLACED.

Rope gasket is intended for sealing NOTICE combustion (FIG. 12-3). If damaged DO

NOT reuse, the heat exchanger door must be replaced. Consult factory for replacement heat exchanger door (kit WTR30002).

Installation & Operation Manual

Oiled bearing circulators

1.The circulator shipped with the Knight wall mount boiler is water-lubricated. No oiling is required.

2.Check other circulators in the system. Oil any circulators requiring oil, following circulator manufacturer’s instructions. Over-oiling will damage the circulator.

3.Replace the boiler front access cover.

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Contents Models 51 Contents Please read before proceeding When servicing boilerStainless steel heat exchanger Gas connection pipe Knight Wall Mount Boiler How it worksModels 51 Knight Wall Mount Boiler Ahri Rating RatingsCloset and alcove installations Installation must comply withDetermine boiler location Before locating the boiler, check1Closet Installation Minimum Required Clearances Vent and air piping PrecautionsWall mounting location Prevent combustion air contaminationAreas likely to have contaminants When using an existing vent system to install a new boilerProducts to avoid When removing a boiler from existing common vent system Gas conversions Prepare boilerRemove boiler from wood pallet Mounting to a wood studded wall Mounting the boilerMounting to a concrete wall Mounting to a metal studded wallDirect venting options Vertical Vent General ventingDirect venting options Sidewall Vent Air intake/vent connections Install vent and combustion air pipingLength Requirements for installation in CanadaSizing Air inlet pipe materials MaterialsModel Kit Number Optional room airAir contamination Primer Material StandardVent fittings Centrotherm InnoFlue SW PolypropyleneApproved Stainless Steel Vent Manufacturers Make Model Stainless steel ventFlue Flue Intake Air Adapter TerminationSidewall direct venting If using the alternate sidewall terminationVent/air termination sidewall Determine location2AClearance to Gravity Air Inlets Prepare wall penetrations Alternate Field Supplied Option Prepare wall penetrations5AMultiple Vent Terminations must also comply with -1A Multiple vent/air terminationsDescription and usage Sidewall termination installationSidewall termination optional concentric vent Sidewall termination optional concentric vent models 8Concentric Vent Dimensional DrawingMultiventing sidewall terminations 10Concentric Vent Sidewall AttachmentVent/air termination vertical Vertical direct venting2Vertical Terminations with Multiple Boilers Prepare roof penetrationsVertical termination optional concentric vent Vertical termination installationMinimum Combustion AIR Typical Multiventing vertical terminationsConcentric Venting Arrangement Alternate vertical concentric ventingAIR Inlet Flue Exhaust Seal CAP Existing Flue Outlet Existing vent as a chaseSystem water piping methods General piping information Hydronic pipingLow water cutoff device Chilled water systemNear boiler piping components Circulator sizing Near boiler piping connectionsArmstrong Pump Size GrundfosVariable speed pump setup Smart System / Multi-temperature loop control optionVariable speed pump option UP26-96 FC/VS IFC VS Stratos 1.25 3 x3Single Boiler Single Temperature Zoned with Circulators Number of Units 5Single Boiler Multiple Temperatures Required Pipe Sizes Model 8Single Boiler Zoned with Valves Model Number of Units 10Single Boiler Non-Zoned Primary/Secondary Piping Gas connections Connecting gas supply pipingPropane Gas Natural gasLength of Pipe in Straight Feet for 1/2 PSI Natural Gas Pipe Capacity ChartCheck inlet gas supply Gas Pressure Gas valve replacementInstallation must comply with Field wiringLine voltage connections Low voltage connectionsLouver proving switch Outdoor temperature sensorFlow switch ThermostatWiring of the cascade Alarm contactsSystem supply sensor Boiler management system4Low Voltage Field Wiring Connections Condensate drain Condensate disposalStart-up Freeze protection when usedCheck/control water chemistry Fill and test water systemCheck for gas leaks Check thermostat circuits Clean/Inspect Trap AssemblyInspect/fill condensate system Inspect/check condensate lines and fittingsStart the boiler Final checks before starting the boilerIf boiler does not start correctly Check system and boiler2Operating Instructions Natural Gas Propane Set space heating operationSet domestic hot water DHW operation Verify DHW modeConfiguration of the cascade General Operating informationHow the boiler operates How the control module operatesProtection features Temperature controlBoiler temperature regulation Cascade Outdoor reset operation, if usedOperation Display Sequence of operationUser Access modesInstaller 1Control Panel Knight wall mount boiler control moduleCall for Heat Operating information Dial Function Owner maintenance Maintenance Maintenance and annual startupService technician Maintenance Check all boiler wiring Check ignition ground wiringCheck control settings Check expansion tankReview with owner Check flame signalCleaning boiler heat exchanger Oiled bearing circulators Heat Exchanger Cleaning KitsPC Interface Diagrams2Wiring Diagram
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