Crestron electronic 3.5, 2.5, 1.5 When removing a boiler from existing common vent system

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1 Determine boiler location

When removing a boiler from existing common vent system:

￿ DANGER

Do not install the Crest into a common

vent with any other appliance except

 

 

as noted in Section 2 on page 18.

 

This will cause flue gas spillage or

 

appliance malfunction, resulting in

 

possible severe personal injury, death,

 

or substantial property damage.

￿WARNING Failure to follow all instructions can result in flue gas spillage and carbon

monoxide emissions, causing severe personal injury or death.

At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

a.Seal any unused openings in the common venting system.

b.Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion, or other deficiencies, which could cause an unsafe condition.

c.Test vent system – Insofar as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.

Installation & Operation Manual

d.Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so appliance will operate continuously.

e.Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar, or pipe.

f.After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined herein, return doors, windows, exhaust fans, fireplace dampers, and any other gas-burning appliance to their previous conditions of use.

g.Any improper operation of the common venting system should be corrected so the installation conforms with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation Code. When re-sizing any portion of the common venting system, the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Part 11 of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation Code.

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Contents Save this manual for future reference Contents When servicing boiler Please read before proceedingCrest How it works BlowersCrest How it works Models 1.5 2.0 2.5 3.0 Ratings Crest Ahri RatingBefore locating the boiler, check Installation must comply withDetermine boiler location Provide clearancesVent and air piping Provide air openings to roomFlooring and foundation Prevent combustion air contaminationProducts to avoid When using an existing vent system to install a new boilerAreas likely to have contaminants When removing a boiler from existing common vent system Remove boiler from wood pallet 7Combustion Air from Outside Single Opening Minimum Recommended Combustion AIR Supply to Equipment Room Direct venting General ventingOptional room air Install vent and combustion air piping Air inlet pipe materialsApproved Stainless Steel Vent Manufacturers Make Model Air intake/vent connectionsRemoving from existing vent Common venting Determine location Vertical direct ventingVent/air termination vertical Prepare roof penetrationsMultiple vent/air terminations 4Alternate Vertical Terminations with Multiple BoilersSidewall direct venting Vent/air termination sidewallPrepare wall penetrations 2Clearance to Doors and WindowsRoom air 4Multiple Vent Terminations must also comply with FigureHydronic piping Model Circulator sizing20F 40F 60F Near boiler piping components System Multiple Boilers Common Header Primary / Secondary Flow For all equipment and detailing required by local codes Hydronic piping Gas connections Connecting gas supply pipingModel Gas Inlet Size Natural gas Propane GasGAS Piping Size Chart Check inlet gas supplyGas valve replacement Gas PressureInstallation must comply with Field wiringLine voltage connections Louver proving switch EnableOutdoor temperature sensor Low voltage connectionsWiring of the cascade Auxiliary switch 1Alarm contacts System supply sensorWiring FieldCondensate disposal Condensate drainCheck/control water chemistry Freeze protection when usedStart-up Fill and test water systemInspect condensate system Check for gas leaksCheck thermostat circuits Inspect/check condensate lines and fittingsIf boiler does not start correctly Final checks before starting the boilerStart the boiler Check system and boilerFor Your Safety Read Before Operating Set space heating operation Gas Natural Gas Propane ValveConfiguration of the cascade Verify HWG circulator mode Set HWG target temperatureSet clock Operating information GeneralProtection features Boiler temperature regulation Outdoor reset operation, if usedCascade Sequence of operation Crest control module Home Screen2Main Menu Screen Owner maintenance Maintenance Maintenance and annual startupService technician See the Crest User’s Information Manual for InstructionsMaintenance Check expansion tank Flue vent system and air pipingCheck water system Check boiler relief valveCheck control settings Check ignition ground wiringCheck all boiler wiring Check flame signalHandling ceramic fiber materials Cleaning boiler heat exchangerReview with owner Niosh stated First AidDiagrams Integrated Control2Wiring Diagram
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