Slant/Fin BOILERS Vent Piping and Draft Regulator, Cleaning and Filling a NEW Water Boiler

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LIBERTY II

VENT PIPING AND DRAFT REGULATOR

A.Vent pipes must be installed having the same diameter as the boiler outlet. (See page 2)

B.Vent pipes and breeching must be pitched upward a minimum of 1/4" per foot.

C.Connect vent pipe to the chimney using as few elbows as possible.

D.Horizontal vent connector into the chimney should not be inserted beyond the inside wall of the chimney.

E.Install barometric draft regulator on horizontal breeching, near chim- ney, with hinge horizontal and face vertical. See manufacturer's instructions packed in carton with barometric draft regulator.

F.If two or more appliances are used on the same chimney, see CHIMNEY, page 3.

G.Make up all joints with minimum air leaks, secure with sheet metal screws.

OPERATING INSTRUCTIONS

PRECAUTIONS BEFORE STARTING OIL BURNER Make a positive check of A through F before starting burner:

A.Boiler and system are full of water. All air is vented from system. See below.

B.All wiring is completed. See pages 11-13.

C.Oil supply is connected to the burner; nozzle is installed correctly; oil valve is open at tank.

D.Smokepipe is connected to chimney.

E.All combustible materials are cleared away.

F.Combustion air supply is provided. See page 3.

G.Burner settings are adjusted as per pages 14-18 and as shown on boiler jacket.

H.Main cast-iron door on which burner is mounted is bolted shut and fiberglass rope seal is making good contact.

WARNING: NEVER OPERATE any natural draft* boiler (Liberty II boiler is a natural draft boiler) with zero draft or over- fire pressure: early failure of the burner, nozzle and chamber is inevitable if you do. Use a draft gauge, and make sure that overfire draft* is .02", minimum, during all operating conditions.

* Draft is negative or suction pressure.

START-UP(COMBUSTION TEST INSTRUMENTS MUST BE USED)

A.Make sure the boiler is installed and wired properly and is full of water.

B.Open the observation door (on the front, above the burner).

C.Start the oil burner (see burner instructions for bleeding air from oil, etc.). IMMEDIATELY, set burner air bands to obtain a bright fire with- out smoke or oil stain. Set the DRAFT REGULATOR to obtain .02" overfire draft*. Take draft reading through slot in observation door.

D.Close the observation door. Allow the burner to fire for at least one hour total firing time, to bake out the volatile binders in the combus- tion chamber before taking final combustion readings.

E.By alternate adjustment of the barometric draft regulator, the burner air regulation and head regulation devices (whichever apply), set for

a trace of smoke and as close to 13% CO2 as you can. Then open the air bands or shutter (whichever apply) an additional 1/8". This should result in zero smoke with NO raw oil on the smoke paper and a smooth light-off. DO NOT ATTEMPT TO SET FIRE BY EYE. Flame retention burners may appear efficient and smoke free from

an inefficient 7% up to an overly high 14% CO2. However, a very low CO2 can also result in poor ignition and raw (unburned) oil entering the fire box. At very high CO2, any slight decrease in air flow for any reason will cause incomplete combustion, with high smoke and dry soot formation in the fire box.

F.If smoke reading is satisfactory, but CO2 can not be increased to a satisfactory level (12% or better) or overfire draft of 0.02" W.C. can not be obtained, check for proper sealing between sections, between burner mounting plate and front section, around burner blast tube and around flue collector and collar. If seal is not satisfactory, reseal with furnace putty or silicone with a temperature rating of at least 400° F. (All safety precautions indicated on material package must be followed.)

G.Once burner and draft have been set up, then smoke, CO2 and stack temperature should be checked and recorded. If smoke is greater than trace, review the burner instructions; replace the nozzle if necessary.

Normal smoke to be expected at approximately 13% CO2 is zero to a trace.

CLEANING AND FILLING A NEW WATER BOILER

I.There are a number of commercial preparations available from your distributor for cleaning and for corrosion protection conditioning the internal (waterside) surfaces of boilers. Follow the preparation manu- facturer’s instructions.

DANGER: Use CAUTION when handling chemicals and draining hot water from a boiler. Scalding water and/or

chemicals can cause permanent injury to the skin, eyes and respiratory system.

II.Filling and venting the water boiler after cleaning

A.Refill the system with fresh water.

B.Bring water temperature to at least 180° F promptly.

C.Circulate water through entire system.

D.Vent the system, including the radiation.

E.The boiler is now ready to be put into service or on standby.

F.If brand name air-control devices are used, venting instructions furnished with the devices should be followed.

III.Safety check for control system

High limit control test: Set thermostat high enough for boiler water temperature to reach high limit control setting. When this tempera- ture is reached, the high limit switch should open, and the burner should shut off automatically. If the high limit does not operate to shut off the burner, the high limit or the wiring is faulty. Repair or replace immediately.

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Contents Liberty Liberty Chimney CONNECTOR-18 Boiler LocationMinimum Clearance Chimney RequirementsRequires AIR from OUT Liberty Installing Controls Accessories on Boiler Units Cleaning Piping SystemPiping Piping for Steam BoilersOIL Supply Piping Installing the BurnerWiring the Boiler START-UPCOMBUSTION Test Instruments Must be Used Cleaning and Filling a NEW Water BoilerVent Piping and Draft Regulator LOW Water CUT-OFF CHECK-OUT Cleaning and Filling a NEW Steam BoilerBlowing OFF a LOW Pressure Steam Boiler Replacement of Steam Boilers Pressure Control CHECK-OUTLiberty Basic Module Wiring Detail a Liberty Burner Data Beckett CF-375 Burners for Packaged Boilers only DelevanLiberty Turbulator Settings Riello 40 Series Burner Data RielloLiberty Liberty III. OIL Burner IV. General MaintenanceII. Providing Protection for Freezing

BOILERS specifications

Slant/Fin is a recognized leader in the manufacturing of high-quality cast iron and stainless steel boilers, providing reliable heating solutions for residential and commercial applications. With a commitment to performance and efficiency, Slant/Fin has developed a diverse range of boiler products that cater to various heating needs and preferences.

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