RBI Dominator Series Installation & Operating Instructions Manual

RBI Dominator Series Installation & Operating Instructions Manual Manual pdf 33 page image

Fi d b b il & h B il M lFinned copper tube gas boilers & water heaters – Boiler Manual33FFOUTDOOR RESET WITH DHW OPERATION - A DHWtank controlled by a pump provides reset override wheneverDHW generation is required. In Mode 5, reset override will occurif the staging controller receives a signal across the “STPT DEM”and “DEM SIG” terminals of the terminal strip. (i.e., closing a tankaquastat switch wired to these terminals). In this case, the controlwill temporarily override outdoor reset and increase the targettemperature to 180°F, 82°C to provide sufficient heat to satisfythe DHW requirement.Mode 6: Multiple BTC controls. The control only operatesthe pump and stage one.REMOTE STAGING - An external staging control is used to controland stage multiple boiler/water heaters. Factory supplied terminalsin the electrical box are used.The operating control on the boiler/water heater is set to its low-est setting when the water heater leaves the factory. The preferredcontrol setting for potable hot water is 130°F, 54°C. The operat-ing control should be set to the lowest setting that will satisfy theconsumer's needs.MAINTENANCEDisconnect electrical power and close the manual gasshut off valve before performing maintenance or severepersonal injury may result!Improper installation, adjustment, alteration, serviceor maintenance can cause property damage, personalinjury, exposure to hazardous materials or loss of life.Installation and service must be performed by aqualified installer, service agency or the gas supplierwho must read and follow the supplied instructionsbefore installing, servicing or removing this boiler.This boiler contains crystalline silica materials that havebeen identified as carcinogenic or possibly carcinogenicto humans when inhaled.AVERTTSSEMENT: une instqallation, un réglage,une réparation ou un entretien non comforme auxnormes peut entraîner des dommages matériels, desblessures,exposition à des matiéres dangereuses ou lamort. L’installation et l’entretien doivent être eff ectuéspar un installateur ou un service d’entretien qualifi é oule foumisseur de gaz qui doivent avoir lu lesinstructions foumies avant de faire l’installation,l’entretien ou l’enlèvement de la chaudière et lesrespecter, Cette chaudière contient des matériaux quiont été identifi és comme étant cancérogènes ou l’être.Servicing, inspection and adjustment must be done bya trained technician in accordance with all applicablelocal and national codes. Improper servicing or adjust-ment can damage the boiler/water heater!The ceramic combustion chamber contains crystallinesilica. Wear a tightly fi tted dust mask when removingthe burners or heat exchanger to prevent inhalationof airborne fibers. Crystalline silica fibers have beenidentified as carcinogenic, or possibly carcinogenicwhen inhaled.The boiler/water heater should be cleaned and inspected once ayear, before each heating season. Make sure that the burner andignition components are free from dust, soot, dirt, corrosion or otherdeposits that would impair the boiler/water heater’s performance.Refer to page 39 for component identifi cation.Improper burner servicing can result in prematureburner failure voiding the warranty!Burner Inspection And Removal - Figure 201. Close the manual shutoff valves in the gas supply lines and turnoff electrical power to the boiler/water heater.2. Remove the jacket front panels.3. Disconnect the manifold gas piping at the ground joint union(s).Also disconnect the pressure sensing lines, pilot tubing andignition and sensing leads.4. Remove the manifold(s).5. Remove the burner(s) from the lower front combustion chamberpanel.6. Inspect the burner(s) for damage or signs of deterioration. Use abrush or compressed air to remove any debris from the burnerports.7. DO NOT install a damaged or badly corroded burner, replaceit.8. Install the burner(s) making sure that the burner gasket is nottorn or deteriorated. If it is replace it.9. Reassemble the unit following the removal steps in reverse order.Heat Exchanger Inspection - Figure 201. Close the manual shutoff valves in the gas supply lines and turnoff electrical power to the boiler/water heater.2. Remove the jacket front panels.3. Disconnect gas piping at the ground joint union(s). Alsodisconnect the pressure sensing lines, pilot tubing and ignitionand sensing leads.4. Remove the upper partition panel, 1050 thru 2100 models.5. Remove the 1/4 inch nuts and washers holding the uppercombustion chamber front panel in place and carefully removeit.6. Inspect the inside and outside of the heat exchanger for signs ofdamage, sooting or corrosion.7. The outside surfaces of the copper tubes should be free of anysoot deposits. A slight black smudge is normal with some typesof gases. Black soot indicates poor combustion. Green depositsindicate condensation due to low return water temperatures. Ineither case the heat exchanger must be cleaned thoroughly andthe problem resolved before the boiler/water heater is returnedto service.