Raypak 0042B - Manual

7 INSTALLATION Code Requirements Installation must be in accordance with local codes, or in the absence of local codes, with the latest editions of the National Fuel Gas Code, ANSI Z223.1, and the National Electrical Code, ANSI/NFPA 70. In Canada, installations must conform with the current CSA B149...

8 3. Except for carpeted flooring, boilers are certified for installation on combustible floors. 4. For un-insulated hot water pipes, maintain a 2" clearance, or consult local authority having juris- diction. Combustion/Ventilation Air 1. The boiler must be provided with adequate supply of air f...

9 Location of the openings is the same as in the previ- ous case - that is, within 12" of the top, and within 12" of the bottom of the enclosure. If horizontal ducts are used, the area must be doubled and the duct area shall not be less than the area of the openings they connect, and in no c...

10 Roof Pitch (X/12) H (Min. ft) Flat to 6/12 1 6/12 to 7/12 1.25 Over 7/12 to 8/12 1.5 Over 8/12 to 9/12 2 Over 9/12 to 10/12 2.5 Over 10/12 to 11/12 3.25 Over 11/12 to 12/12 4 Over 12/12 to 14/12 5 Over 14/12 to 16/12 6 Over 16/12 to 18/12 7 Over 18/12 to 20/12 7.5 Over 20/12 to 21/12 8 Table F: M...

12 Mounting On vertical vents, the vent damper may be mounted with the actuator in any position. On horizontal vents, do not mount the actuator either directly above or directly below the vent pipe; mount the vent damper actuator to the side of the vent. The vent damper is set up for a continuous pi...

13 2. Turn the thermostat or controller up to call for heat and check that the vent damper indicator points to the open position, as shown in Fig. 11. 3. Turn the thermostat or controller down again and check that the vent damper position indicator returns to the closed position. The vent damper mus...

15 Gas Supply Connections The inlet gas connection of the boiler gas valve is 1/2". Provide an adequate gas piping supply line no smaller than 1/2", according to Table H above. Gas piping must have a sediment trap ahead of the boiler gas controls, and a manual shut-off valve locat- ed outsid...

16 shipped loose. The full open position is appropriate for most systems, and ensures adequate flow through the boiler. If system flow is inadequate, (indicated by excessive temperature drop through the system) the bypass valve can be throttled slightly. Care must be taken against over-throttling wh...

17 AirScoop Air Vent DiaphragmExpansion Tank FeedValve Pipe PressureRelief Valveto Drain Cold WaterInlet Heating Units Fig. 15: Single-Zone Piping AirScoop Air Vent DiaphragmExpansion Tank FeedValve Pipe PressureRelief Valveto Drain Cold WaterInlet Heating Units Circulators 12” Max. Fig. 16: Multipl...

18 Electrical Wiring The electrical power supply requirement for these boil- ers is 120 VAC, 60 Hz. Field wiring connections and electrical grounding must comply with the local codes, or in the absence of local codes, with the latest edition of the National Electrical Code, ANSI/NFPA 70. Provide a s...

26 SERVICING PROCEDURES General Location of Controls Fast-ResponseTemperatureSensor 2-Stage Controller Relay Ignition Module(Auto Ignition Only) Fig. 25: Control Box Component Locations Models 135 & 180 CIRCULATOR VENT SENSOR BYPASS VALVE (MODELS 135 & 180 ONLY) BYPASS LINE TEMPERATURE AND P...

27 START-UP PROCEDURES Lighting the Boiler Safe-lighting and other performance criteria were met with the gas manifold and control assembly provided on the boiler when the boiler underwent tests specified in the latest edition of the ANSI-Z21.13/CSA 4.9 Standard. For Standing Pilot Models A. This bo...

28 For Standing Pilot Models with Robertshaw Gas Valve, 2-stage Operation (Models 90, 135 & 180) 10. Turn on all electrical power to the boiler. 11. Set the thermostat to the desired setting. To Turn Off Gas to the Boiler (Models 90, 135 & 180) For Automatic Ignition Models Please read caref...

29 technician. Force or attempted repair may result in a fire or explosion. D. Do not use this boiler if any part has been under water. Immediately call a qualified service techni- cian to inspect the boiler and to replace any part of the control system and any gas control which has been under water...

30 3. Turn off all gas valves supplying gas to the boiler. Refer to operating instruction label on the boiler. 4. Shut-off the water supply to the boiler piping sys- tem loop. 5. Open drain valve on the boiler to remove water from the boiler and the piping circuits. Testing the Ignition Safety Shut-...

31 Inspection Procedures Burners Clean main burners and air louvers of dust, lint and debris. Keep boiler area clear and free from com- bustibles and flammable liquids. Do not obstruct the flow of combustion and ventilation air. Make visual check of burner and pilot flame. Yellow flame indicates clo...

32 Burner Tray Removal 1. Shut-off power and gas supply to the boiler. Disconnect union(s) and pilot tubing when pres- ent; then loosen and remove burner hold-down screws. 2. Disconnect wires at gas valve and slide burner tray out. Main Burner and Orifice Removal 1. Remove screws and burner hold-dow...

34 TROUBLESHOOTING These instructions are primarily intended for the use of qualified personnel specifically trained and experienced in the installation of this type of heating equipment and related system components. Installation and service per- sonnel may be required by some states to be licensed...

37 7. Remove the wedge or retaining clip holding the sensing bulb in the control well in the in/out head- er. 8. Pull out the sensing bulb carefully from the control well. 9. Remove the limit control with capillary from unit. 10. Reverse above procedure to re-install. Fast-Response Temperature Senso...