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RSB-i&s-05
INSTALLATION AND SERVICE MANUAL
HYDRONIC HEATING BOILERS and
DOMESTIC WATER HEATERS
45,000 - 500,000 Btu/hr MODELS
IMPORTANT:
WARNING
This is a gas appliance and should be installed by a
Improper Installation, Adjustment,
licensed electrician and/or certified gas supplier.
Alteration, Service or Main te nance
Service must be performed by a qualified service
can cause injury or prop er ty dam age.
installer, service agency or the gas supplier.
Refer to this man u al. For as sis ta
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USER WARNING CONTENTS The information contained in this manual is Warranty ..................................................................................1 in tend ed for use b y qualified pr ofessional in stall ers, Safety Warnings ......................................................................1 service technicians or gas suppliers. Con sult your Codes ..................................................................................3 local expert for proper installation or service Lo
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CODES The equipment shall be installed in accordance with installation regulations in force in the local area where the installation is to be made. These reg u la tions shall be carefully followed in all cases. Au thor i ties having jurisdiction shall be consulted be fore installations are made. In the absence of such requirements, the in stal - la tion shall conform to the latest edition of the Na tion al Fuel Gas Code, ANSI Z223.1. Where re quired by the authority having jurisdiction, the
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14" 6" 6" 18" 18" CLEARANCE FROM COMBUSTIBLE CONSTRUCTION Clearances from Combustible Construction: 29" Right Side - 6" Rear - 6" Left Side - 18" (24" suggested for service) Front - 18" (24" suggested for service) Top - (measured from the top of the unit) 45,000 - 180,000 Btu/hr Models - 14" 199,999 - 500,000 Btu/hr Models - 29" All units have been approved for alcove installation (an 6" ALCOVE is a closet enclosure without a front door). 6" The boiler must not be installed on carpeting. 18" 18
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FIG. 5 Combustion Air Direct from Outside FIG. 7 Combustion Air from Interior Space 1. If air is taken directly from outside the building 3. If air is taken from another interior space that is with no duct, provide two permanent openings: adequately ventilated, each of the two openings specified above should have a net free area of one 2 a. Combustion air opening, with a minimum free square inch for each 1000 Btu/hr (22cm per kW) area of one square inch per 4000 Btu/hr input of input, but n
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Outside air openings shall directly communicate with CAUTION the outdoors. When combustion air is drawn from the outside through a duct, the net free area of each of the Under no circumstances should the room where two openings must have twice (2 times) the free area the appliance is installed ever be under a required for Outside Air/2 Open ings. Table A lists the negative pressure. Particular care should be re quire ments for the ap pli ance only, additional gas fired taken where exhaust fa
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EXHAUST FANS: Any fan or equipment which ex - hausts air from the room where the appliance is installed may deplete the combustion air supply and/or cause a down draft in the venting system, spilling flue products into the room. Spillage of flue products from the venting system into an occupied living space can cause a very hazardous condition that must be corrected im - me di ate ly. If a fan is used to supply com bus tion air to the room where the appliance is installed, the installer must
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On a conventionally vented, negative draft ap pli ance, (a)Seal any unused opening in the common the connection from the vent to the chimney or vent venting system. termination on the outside of the building MUST be made with listed Type “B” double wall (or equivalent) (b) Visually inspect the venting system for proper vent connectors and must be direct as possible with no size and horizontal pitch and determine there is reduction in diameter. Use the National Fuel Gas Code no blockage or restr
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VENTING TERMINATION FIG. 12 Vent Termination from Flat Roof 10’ or Less from Parapet Wall FIG. 10 Vent Termination from Peaked Roof 10’ or Less from Ridge 10’ OR MORE MORE THAN 10' 10' 3’ RIDGE 2' MIN NOTE: 3' MIN NO HEIGHT ABOVE PARAPET REQUIRED WHEN DISTANCE FROM WALLS OR WALL OR PAR A PETS IS MORE CHIMNEY PARAPET THAN 10’. FIG. 13 Vent Termination from Flat Roof More Than 10’ from CHIMNEY Parapet Wall The vent cap should have a minimum clearance of 4 FIG. 11 Vent Termination from Peaked R
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To avoid a blocked vent condition, keep the vent cap systems (Type “B” double wall or flexible or rigid clear of snow, ice, leaves, debris, etc. metallic liners) are recommended. Consult with local code officials to determine code requirements or the Flue gases will form a white plume in winter. Plume advisability of using or relining a masonry chimney. could obstruct window view. SIDEWALL VENTING Flue gas condensate can freeze on exterior sur fac es or on the vent cap. Frozen condensate on t
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The part number for the automatic vent damper AUTOMATIC VENT DAMPER required on this heating boiler is printed on the rating plate. Vent damper regulations are design certified per This heating boiler is design certified for use with the the latest edition of ANSI Z21.66. automatic vent damper (FIG. 15) part number printed on the boiler’s rating plate. A vent damper must be installed on all residential heating boilers with inputs of less than 300,000 Btu/hr to comply with minimum efficiency r
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GAS PRESSURE TEST GAS SUPPLY 1. The appliance must be disconnected from the Verify that the appliance is supplied with the type gas gas supply piping system during any pressure spec i fied on the rating plate. This appliance is orificed testing of that system at a test pressure in for operation up to 2000 feet altitude. The ap pli ance excess of 1/2 PSIG (3.5kPa). will be derated 4% per 1000 feet above 2000 feet el e va - tion. Consult the factory for installations above 2000 2. The applian
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TABLE - E SUGGESTED GAS PIPE SIZE SINGLE APPLIANCE INSTALLATIONS Btu/hr DISTANCE FROM METER (In Feet) INPUT 0-50 51 - 100 101 - 200 201 - 300 301 - 500 45,000 1/2" 1/2" 3/4" 1" 1 1/4" 75,000 1/2" 3/4" 1" 1 1/4" 1 1/4" 90,000 1/2" 3/4" 1" 1 1/4" 1 1/4" 135,000 3/4" 1" 1 1/4" 1 1/4" 1 1/2" 180,000 1" 1" 1 1/4" 1 1/2" 1 1/2" 199,999 1" 1" 1 1/4" 1 1/2" 2" 215,000 1" 1 1/4" 1 1/4" 1 1/2" 2" 260,000 1" 1 1/4" 1 1/4" 1 1/2" 2" 315,000 1 1/4" 1 1/2" 1 1/2" 1 1/2" 2" 360,0
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TABLE - H MULTIPLE APPLIANCE INSTALLATIONS GAS PIPING SIZE CHART Nominal Iron Pipe Length of Pipe in Straight Feet Size, Inches 10 20 30 40 50 60 70 80 90 100 125 150 175 200 3/4 369 256 205 174 155 141 128 121 113 106 95 86 79 74 1 697 477 384 328 292 267 246 226 210 200 179 164 149 138 1 1/4 1,400 974 789 677 595 543 502 472 441 410 369 333 308 287 1 1/2 2,150 1,500 1,210 1,020 923 830 769 707 666 636 564 513 472 441 2 4,100 2,820 2,260 1,950 1,720 1,560 1,440 1,330 1,250 1,180 1,100 974 871
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1. Turn the power “OFF” at the main dis con nect switch. 2. Turn gas valve control knob to “PILOT” po si tion on standing pilot models. Ensure that the stand ing pilot remains on. If the pilot goes out, follow the “Lighting Instructions” for standing pi lot models to light the pilot. Turn gas valve control knob to “OFF” po si tion on spark ignition models. 3. Remove the 1/8" hex plug located on the out let side of the gas valve and install a fitting suitable to connect to a manometer or magn
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14. Repeat the adjustment procedure for the sec ond 6. Turn on gas supply at the manual valve, turn on gas valve on the 500,000 Btu/hr model. L.P. gas at tank if required. 15. Turn the gas valve control knob(s) to “ON” 7. Turn the power “ON” at the main dis con nect position. switch. 16. Turn the power “ON” at the main dis con nect 8. Turn gas valve control knob to “PILOT” switch. The appliance is now ready to op er ate. po si tion on standing pilot models. Follow the “Lighting Instructions”
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20. Set the thermostat to call for heat. The appliance is now ready to operate. IMPORTANT Upon completion of any testing on the gas system, leak test all gas connections with a soap solution while main burners are operating. Im me di ate ly repair any leak found in the gas train or re lat ed components. Do Not operate an appliance with a leak in the gas train, valves or related piping. Check burner performance by cycling the system while you observe burner response. Burners should ignite prom
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RELIEF VALVE WATER FLOW SWITCH (IF EQUIPPED) FIG. 24A Water Flow Switch Water Heater - Side Connections FIG. 23A Relief Valve - Water Heater FLOW SWITCH RELIEF VALVE FIG. 24B Water Flow Switch Boiler - Top Connections A water flow switch is available as a factory sup plied FIG. 23B Relief Valve - Boiler option on all heating boilers and water heaters. The This appliance is supplied with a relief valve(s) sized in flow switch should be wired between terminals X and B. Remove the jumper between
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A water flow switch meets most code re quire ments 4. To avoid serious damage, DO NOT en er gize the for a low-water cut off device on boil ers requiring appliance until the system is full of water. for ced cir cu la tion for operation. Serious damage may result. 5. Provide the unit with proper overload protection. TABLE I 6. Install a wall thermostat on the inside wall. DO MINIMUM FLOW RATE REQUIRED TO NOT install the thermostat in an area affected by ACTUATE FLOW SWITCH drafts, sunlight
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Temperature Control Settings There are three setting knobs on the temperature control unless your unit is specified as a boiler only with an outdoor air reset option. If your unit is a boiler only with an outdoor air reset option, there are additional controls for this option. They are explained under Outdoor Air Reset Option, page 22. The three setting knobs on the temperature control are for Set point, Differential, and High-Fire Offset (see Figure 28). FIG. 26 Intermittent Pilot System F9/M9
