MECHANICAL PROBLEM POSSIBLE CAUSE

CORRECTIVE ACTION

When boiler is turned on nothing happens.

Thermostat in "ON" position causes relay and pump to operate, but boiler does not fire.

Pilot is not lit………………………………

No power to the boiler…………………...

Bad transformer………………………….

Inoperative thermostat…………………..

Inoperative toggle switch………………..

Inoperative relay………………………….

Main gas valve is closed……………….

Plugged bleed line on gas valve or

gas pressure regulator…………………..

Broken pump coupler……………………

Shutdown by low water cut-off,

caused by air……………………………..

Gas valve defective………………………

Light pilot. (Standing pilot models) Check the circuit breaker, outdoor con- troller, etc., upstream of boiler.

If power to Leads L1 and L2 of trans- former, but no power on 24V side, re- place.

Jumper thermostat. Replace with new if boiler fires.

If power to toggle switch, but not through switch, replace.

If power to relay, but not operating, replace.

Open valve.

Loosen bleed line and clean.

Replace coupler. Inspect bearing as- sembly, and if frozen, lubricate or re- place.

Bleed air from system.

Check for power to gas valve. If valve has power but will not open, check vent tube for blockage. If clear, replace valve.

Continuous shut down of manual reset Temperature setting too low…………….

high limit.

Low water flow……………………………

 

Interrupted pump operation……………..

 

Modulating control set too high………..

 

Mechanical modulating control…………

Reset high limit to higher temperature. Check system water pumps.

Check pump oil if necessary. Reset modulator to a lower setting. Check and replace if necessary.

Sooting

CAUTION-Soot may be combustible. Wet down and exercise caution when cleaning.

Air starvation……………………………..

Condensation……………………………..

Toxic fumes which cause a chemical reaction with copper tubes or destroy combustion……………………………….

Improper venting…………………………

Refer to installation instructions regard- ing combustion air requirements.

Set bypass valve to prevent boiler inlet temperature from dropping below 105 °F.

Remove all sources of fumes, such as freon, chloride, or isolate the boiler. Follow recommended vent installation instructions.

Continuous shut down of low water cut- Insufficient system flow………………….

off or flow switch.

Low water due to leaking………………..

 

Air in system………………………………

 

Line strainer dirty…………………………

 

Lime in heat exchanger…………………

Low flame.

Gas supply………………………………..

 

Insects or debris clogging burners

 

Burner intake ports low gas pressure….

 

Venting or combustion air……………….

Outer jacket very hot (blistered paint). Broken refractory…..…………………….

Check pumps and piping. Inspect for leakage and repair. Inspect for leakage and repair. Install an automatic air vent.

Clean. Ream tubes.

Debris in gas line (pipe dope, rocks, etc.). Gas line too small.

Improperly sized gas meter. Gas regulator adjustment. Clean burners.

Adjust gas pressure.

Refer to installation instructions regard- ing combustion air requirement.

Replace refractory panels.

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Raypak 133-4001 manual Mechanical Problem Possible Cause Corrective Action
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133-4001 specifications

Raypak 133-4001 is a premier heating solution designed for both residential and commercial applications, known for its efficiency and reliability. This high-performance water heater is specifically engineered to meet the demanding requirements of hot water supply while ensuring energy conservation and user convenience.

One of the standout features of the Raypak 133-4001 is its robust construction. Made from high-quality materials, including a corrosion-resistant heat exchanger and durable casing, this unit is designed to withstand harsh environmental conditions. Its compact design allows for easy installation in various locations, making it an ideal choice for homeowners and businesses alike.

The unit operates on natural gas or LP gas, providing versatility in fuel choice. With a heating capacity of 199,000 BTU/hr, it delivers an impressive flow rate that ensures a steady supply of hot water, even during peak demand periods. This capacity makes it suitable for a wide range of applications, from residential water heating to larger facilities requiring substantial hot water output.

Raypak’s advanced technology set ensures that the 133-4001 operates at maximum efficiency. It utilizes a modulating power burner that adjusts the flame based on demand, optimizing fuel consumption. This feature not only helps in reducing energy bills but also minimizes the carbon footprint, making it an environmentally friendly option.

Another notable characteristic of the Raypak 133-4001 is its digital control system. The intuitive interface allows for precise temperature adjustments and easy monitoring of the heating process. Users can set the desired water temperature, and the system will maintain it consistently, ensuring comfort and reducing the risk of scalding.

Safety is a paramount consideration in the design of the 133-4001. It features a built-in high-limit switch, pressure relief valve, and multiple safety sensors to prevent overheating and potential hazards. These safety features provide peace of mind for homeowners and facility managers, knowing that their hot water system is reliable and secure.

In conclusion, Raypak 133-4001 combines advanced technology, robust construction, and user-friendly features, making it a highly effective water heating solution. Its efficiency and dependability cater to a variety of hot water needs, positioning it as a top choice for both residential and commercial use. Whether for a single-family home or a large facility, the Raypak 133-4001 is built to deliver exceptional performance with every use.
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