Évaluations - 2, GPA: 3.5
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Facilité d'utilisation
IF IMPROPERLY INSTALLED, A HAZARDOUS CONDITION, SUCH AS AN EXPLOSION OR CARBON MONOXIDE POISONING, COULD RESULT. 8 VENT DAMPER OPERATION For safe, efficient operation, the vent damper and all flue-product-carrying areas of the appliance must be checked annually, with particular attention given to deterioration from corrosion or other sources. Check vent damper operation as follows: 1. When the boiler is off, check that the vent damper position indicator points to the closed position, below. DAMPER POSITION DAMPER POSITION INDICATOR INDICATOR NOTE: To place vent damper in the open position to allow burner operation: Turn the power off. Turn the damper blade to fully open position (arrow facing same direction as vent pipe). Turn power on. Fig. # 8181.0 VENT DAMPER POSITION INDICATOR 2. Turn the thermostat or controller up to call for heat and check that the vent damper indicator points to the open position, below. 3. Turn the thermostat or controller down again and check that the vent damper position indicator returns to the closed position. THE VENT DAMPER MUST BE INSPECTED AT LEAST ONCE A YEAR BY A TRAINED, EXPERIENCED SERVICE TECHNICIAN. THE NAME OF THE PERSON WHO ORIGINALLY INSTALLED YOUR VENT DAMPER IS SHOWN ON THE INSTALLATION LABEL. DAMPER MUST BE IN OPEN POSITION WHEN BOILER MAIN BURNERS ARE OPERATING. FLAIR DAMPER SYSTEM SCHEMATIC LEGEND LADDER DIAGRAM M - Damper motor R - Relay ES - End switch 24 V AC SS1 - N/C Safety switch SS2 - N/O Safety switch contacts TR - Transformer 120/24V TH 2 HL - High limit GV - 24V gas valve* TH - Thermostat, heating, low voltage SS J - Jumper 2 Note: Circuit shown with damper in closed position, no call for heat. Fig. #9003 DAMPER OPEN DAMPER CLOSED LL1 2 60Hz SS R2 SS2 ES R SC R1 M 2 3 41 JUMPER GV 24 VAC TR HL 120 VACTH 1 Fig. #9002 R 4 3 J SS HL GV 1 ES R 2 SC M R 1 9 CONNECTION DIAGRAM 10 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 the chart below: Maximum Equivalent Pipe Length (Feet) Gas piping must have a sediment trap ahead of the boiler gas controls, and a manual shut-off valve located outside the jacket. All gas piping should be tested after installation in accordance with local codes. Manual Valve Sediment Trap Gas Valve Union Fig. # 8192.0 CAUTION: The boiler and its manual shut-off valve must be disconnected from the gas supply during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45 KPA). Dissipate test pressure in the gas supply line before reconnecting the boiler and its manual shut-off valve to gas supply line. FAILURE TO FOLLOW THIS PROCEDURE MAY DAMAGE THE GAS VALVE. OVER PRESSURED GAS VALVES ARE NOT COVERED BY WARRANTY. The boiler and its gas connections shall be leak tested before placing the appliance in operation. Use soapy water for leak test. DO NOT use open flame. NOTE: Do not use teflon tape on gas line pipe thread. A flexible sealant suitable for use with Natural and Propane gases is recommended. These boilers are also certified to operate on propane gas, when equipped with the combination gas valve and orifices (pilot and main burners) sized for propane gas. GAS PRESSURE Inches W.C. Regulator Min. Max. Setting Natural 7.0 14.0 3.5 Propane 12.0 14.0 11.0 The gas valve is provided with pressure taps to measure gas pressure upstream of the gas valve and downstream which is the same as the manifold pressure. WATER CONNECTIONS & SYSTEM PIPING The pipe size for water connections is shown on page 3. Typical piping systems are shown on pages 12 to 14. The boiler is supplied with a circulator and built in bypass as standard to ensure the required minimum water flow in the boiler. The bypass on models H-0135 and H-0180 is provided with an adjustable valve that is factory-set in the full open position. The handle is 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 which may lead to inadequate flow through the boiler and boiler harmonics (a humming sound from the heat exchanger). If adequate system flow cannot be obtained without causing harmonics, an additional pump is required. The factory-mounted circulator will provide adequate water flow for systems designed at a 20°F temperature drop, and system pressure drop or head not exceeding that which is shown below. When the total system head exceeds the available head pressures, a primary/secondary pumping system is recommended. The minimum boiler operating temperature should be 105°F. When operating at low temperature applications, T (temperature rise) must be 20°F or less. Propylene glycol solution is commonly used in the heating system when freeze protection is required. This will affect the system design and pump ...
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