Testing the Ignition Safety Shut-off

CAUTION: Should overheating occur or the gas supply fails to shut off, DO NOT turn off or discon- nect the electrical supply to the pump. Instead, shut off the gas supply at a location external to the heater. Failure to observe this precaution may aggravate the overheated condition resulting in possible damage to the heater and injury to the user.

The ignition system safety shutoff must be tested by conducting the following tests:

For Standing Pilot Systems

1.With the main burners on, remove the pilot adjust- ment cover screw.

NOTE: There is no pilot adjustment cover on Robertshaw 7200 gas valve.

2.Insert a small slot screw driver and turn the adjust-

ment screw clockwise until pilot flame goes out. Count and note number of turns made.

3.Gas valve will shut off main burners after about three (3) minutes. End of test. If the gas valve will not shut off, follow the instructions "To Turn Off Gas To Heater" and call service technician or your gas supplier.

4.Return pilot adjustment screw counterclockwise

same number of turns as in step 2.

3	2	1
		PILOT ADJ
O F F	S E T P I L O T O N

PILOT KEY

Pilot Adjustment

Fig. 15: Robertshaw 7200 Gas Valve (Models 0135 &

0195)

5.Replace pilot adjustment cover screw, then follow the lighting instructions to get heater ready for operation.

For Automatic Ignition Systems

1.Turn on power to the ignition systems and turn gas supply off at the gas valve.

2.Check ignition module as follows:

a.Set the tankstat to high setting.

b.Watch for continuous spark at the pilot burner.

c.Time the spark operation. Time must be with- in the lockout timing period (15 or 90 seconds).

d.Turn tankstat down to end call for heat and wait 60 seconds on lockout models before beginning step 3.

3.Turn on gas supply.

4.Set tankstat to high setting.

5.Systems should start as follows:

a.Spark will turn on and pilot gas valve will open at once. Pilot burner should ignite after gas reaches the pilot burner.

b.Spark ignition should cut off when pilot flame is established.

c.Main gas valve should open and main burner should ignite after gas reaches the burner port.

Flame Failure

With burner operating, close the manual fuel valves to simulate a flame failure. System should lock out after safety switch timing (15 seconds). After the safety switch has cooled, open the manual valves (relight standing pilots) and reset the safety switch; the burner should restart.

Inspection Procedures

Burners

Clean main burners and air louvers of dust, lint and debris. Keep heater area clear and free from com- bustibles and flammable liquids. Do not obstruct the flow of combustion and ventilating air. Make visual check of burner and pilot flame. Yellow flame indicates clogging of air openings. Lifting or blowing flame indi- cates excess high gas pressure. Low flame indicates low gas pressure.

0090A, 0135A, 0195A specifications

Raypak is a leading manufacturer in the pool and spa industry, known for its reliable and innovative heating solutions. Among its product line, the Raypak 0090A, 0135A, and 0195A are notable models that stand out for their efficiency, durability, and advanced technology.

The Raypak 0090A is ideal for residential pools, offering a heat output of 90,000 BTU per hour. It utilizes a copper heat exchanger, which provides efficient heat transfer and is resistant to corrosion, making it perfect for chlorinated pools. This model features a digital thermostat that enhances user control, allowing for precise temperature settings. Additionally, the 0090A is compatible with both natural gas and propane, providing flexibility depending on user preference.

The Raypak 0135A, with its 135,000 BTU output, is designed for larger residential pools or smaller commercial applications. This model employs advanced energy-efficient technology, helping to reduce operational costs while maintaining optimal heating performance. One of the key features of the 0135A is its built-in electronic ignition system, which improves reliability and eliminates the need for a standing pilot, enhancing safety and efficiency. The unit's compact design allows it to fit in tight spaces while still providing robust heating capabilities.

The Raypak 0195A is the most powerful of the trio, delivering 195,000 BTU, making it suitable for larger pool setups and high-demand environments. It also uses a copper heat exchanger, ensuring excellent heat retention and durability against corrosion. The 0195A is equipped with an easy-to-use digital display, offering intuitive controls for temperature adjustments and operational monitoring. This model also incorporates a high-tech air intake design, which maximizes airflow and reduces energy consumption.

All three models are designed for outdoor installation and possess weather-resistant features, ensuring longevity and reliability through various environmental conditions. Additionally, they are equipped with easy access service panels for maintenance, ensuring that servicing is efficient and straightforward.

In summary, Raypak's 0090A, 0135A, and 0195A models are designed to meet diverse heating needs with advanced technology, energy efficiency, and robust construction, making them excellent choices for anyone looking to enhance their pool experience.