The inspector checks safety controls to make sure they work properly and inspects inside the boiler, both the waterside and fireside. Q: How do I know which Handhole Plate is used on my Hurst Boiler? Failure to follow these instructions could result in serious personal injury or death! Load demand light will not glow. Following a routine may possibly eliminate overlooking an obvious condition, often one that is relatively simple to correct. Hurst shares the Powerhouse commitment to customer service at every level, making them an ideal partner. The Hurst 500 Series boiler provides fuel efficiencies that exceed most four-pass designs.
Limit circuit not completed-no voltage at end of limit circuit program relay terminal. Accumulations of matter will obstruct and interfere with the proper operation of the float device, if not properly maintained. The annual inspection should include opening and cleaning the water chamber. The air damper and fuel valves are actuated by the motor through a linkage and cam assembly to provide modulated firing rates. Having no large refractory rear door, these boilers allow one technician easy access to all tubes. Water from boilers that have been laid up for the summer months should he tested prior to putting the boiler back online. .
Efficiency The Series 500 is designed for optimum fuel efficiency and has proven in certified tests to meet, and often exceed, the efficiencies of four-pass boilers. Three and four pass dry back boilers have tube sheets with large temperature variations and this results in premature tube failure and cracks in the tube sheets. No voltage at program relay power input terminals A. The spectrum below shows the relationship between these frequencies and visible light. The ignition sequence of both is identical.
The cause for loss of flame or any unusual condition should be investigated and corrected before attempting to re-start. Automatic low-high water control equipment must be serviced on a daily basis when the boiler is in operation. The blower motor will be de-energized. The Manual position is provided for initial adjustment of the burner over the entire firing range. Allow probe to cool to room temperature before reinserting it back into the stack. Factory Authorized Distributor of Hurst Boilers Powerhouse is a factory-authorized, stocking distributor for all Hurst Boiler Products.
It is important to note that ultraviolet radiation from the sun that reaches earth starts at 2,800 angstroms. The first is the quick drain or blowdown test, which should be performed at a time other than a peak steam generating period. Our knowledgeable sales staff are committed to providing the highest quality parts for your Hurst Boiler. Lockout will also occur if flame or flame simulating condition occurs during the pre-purge period. Check oil nozzle, gun, and lines 4. The program relay provides connection points for the interconnection of the various circuits. If not proven within this period, the main fuel valve circuit will not be powered and the fuel valve s will not be energized.
This optical quality also limits the flame detector as not all fires have a flame. Costly down-time or delays can be prevented by systematic checks of actual operation against the normal sequence to determine the stage at which performance deviates from normal. Check fuel lines and valves. The flame failure light and the alarm bell optional are energized 10 seconds later. The cause for loss of flame or any other unusual condition should be investigated and corrected before attempting to re-start.
Perform testing using the operating instructions that come with the analyzer. Allow the probe to cool before handling. Low fire switch open in low fire proving circuit A. They grew quickly, and in only a few short years they outgrew this location and moved to a larger 1,000 sq. The flame failure light and alarm bell optional are energized 10 seconds later. Design Hurst Boiler utilizes state of the art computer design techniques in every boiler.
When bringing a boiler online with other boilers, make sure the operating temperature and pressure are the same as the other boilers online before opening the supply and return isolation valves. Main disconnect switch open B. If the condition of low water exists it can seriously weaken the structural members of the boiler, and result in needless inconvenience and cost. As the water is drained from the column the firing sequence is interrupted, the low water alarm signal activates, and the boiler operation shuts down. Heavy oil fired unit - oil temperature below minimum settings. If the programmer lockout switch has tripped: A.