Assessments - 4, GPA: 4
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Facilidade de uso
To do so may result in an explosion or fire. -WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. • If you cannot reach your gas supplier, call the fire department. -Installation and service must be performed by a qualified installer, service agency or the gas supplier. CAUTIONS: Propane gas is heavier than air and sinks to the ground. Exercise extreme care in lighting heater in confined areas. Do not use this boiler if any part has been under water. Immediately call a qualified service technician to inspect the boiler and to replace any part of the control system and any gas control which has been under water. Should overheating occur or the gas supply fail to shut off, do not turn off or disconnect the electrical supply to the pump. Instead, shut off the gas supply at a location external to the appliance. Raypak recommends that this manual be reviewed thoroughly before installing your Raypak Boiler. If there are any questions which this manual does not answer please contact your local Raypak representative or the factory. OPERATING CONTROLS Model W1 with On/Off Controls The boiler is equipped with an adjustable tankstat. Set dial for desired temperature. Models with Mechanical Modulation: H1, H5, W2, N, R Sizes 133 through 1826. These boilers are equipped with modulating gas valves. They have one or more valves in addition to the main electric gas valve. Their purpose is to adjust the firing rate to meet the required load. The modulator will throttle the boiler input to meet the system demand. The valve has a remote capillary bulb immersed in a well at the header outlet to maintain a constant outlet water temperature. When multiple valves are furnished, they can be staged to give greater flexibility of control. Consult the dial setting tag attached to the control for your desired water temperature. MODULATING VALVE (ROBERTSHAW) MODULATING VALVE CHART —7000 TEMPERATURE —°F N H DIAL POSITION W R Lo 110 150 1 117 157 2 124 164 3 130 170 4 137 177 5 143 183 6 150 190 7 156 196 8 163 203 Hi 170 210 Fig. # 8936.1 P/N 240412 Models with Motorized Modulation: H2, H6, W2 Sizes 2100-4001 are equipped with a single motorized modulating valve controlled by a temperature controller that offers full modulation down to 20% of rated input BTU. HIGH LIMIT AND TEMP CONTROL TEMP CONTROL FOR MOTORIZED MODULATION LIMIT CONTROLS 1. HIGH LIMIT If boiler is equipped with a manual reset High Limit, push the reset button and set the Limit(s) to 30° - 40°F above operating temperature. 2. FLOW SWITCH Dual purpose control shuts off boiler in case of pump failure or low water condition. 3. 100% PILOT SAFETY All standard boilers above 400,000 BTUH input are equipped with pilot safety(ies), which close the main valve within 8/10 of a second whenever the pilot flame is interrupted. Pilot flame is automatically lit when the device is powered. Unit performs its own safety check and opens the main valve only after the pilot is proven to be lit. 4. LOW WATER CUTOFF The low water cut off automatically shuts down burner whenever water level drops below probe. 90 second time delay prevents premature lockout due to temporary conditions such as power failure or air pockets. 1 2 5. HIGH AND LOW GAS PRESSURE SWITCHES These switches sense either high or low gas pressures and automatically shut down burners if abnormal pressures exist. 6. BLOCKED VENT SHUT-OFF SYSTEM All indoor boilers below 300,000 BTUH input employ a blocked vent shut-off system designed to shut off main burner gas in the event the venting system is totally blocked. In the event the blocked vent shut-off system is actuated, do not attempt to place the boiler in operation, but contact a qualified service agency. 7. FLAME ROLL-OUT SAFETY SHUT-OFF SYSTEM All boilers below 300,000 BTUH input employ a flame roll-out safety shut-off system designed to shutoff the main burner gas in the event of sustained flame roll-out. In the event the flame roll-out safety system is actuated, do not attempt to place the boiler in operation, but contact a qualified service agency 5 3 4 MANUAL RESET HI LIMIT FLOW SWITCH PILOT SAFETY LOW WATER CUTOFF HIGH OR LOW GAS PRESSURE SWITCH Fig # 9314 Fig # 9317 Fig # 8929 Fig # 9316 Fig # 9312 2 GENERAL LOCATION OF CONTROLS OUTLET T & P GAUGE (Not Shown) INLET HI-LIMIT SEDIMENT TRAP START-UP PROCEDURE GENERAL Before lighting a new installation, water should be flowing through the heater. CAUTION: Propane gas is heavier than air and sinks to the ground. Exercise extreme care in lighting heater in confined areas. INITIAL START-UP – PUMP AND MOTOR Many pumps are now direct drive. They have no coupler or bearing assembly. These pumps do not require lubrication. Others require SAE-30 non-detergent oil to lubricate both the motor and the bearing assembly. Consult motor manufacture...