To measure flame current, first shut off the power to the system and then remove the flame sensing lead wire form the electrode terminal and insert a 0-50 DC microamp meter in series with the sensor electrode and the sensor lead wire. “Plus” terminal of meter to component board and “negative”: terminal to sense electrode. Energize the ignitor. If the meter reads below zero, shut the system off and reverse meter leads.

Once the flame is established, assure that the flame current is above the minimum specified. If not, assure that the system has the proper input voltage, and ten relocate the sensor electrode in the flame pattern until flame current is increased.

Once the flame has been established and the system is in its heat cycle, occasional sparking may occur. This is common in some installations and is not significant. Sparking will not damage the ignitor.

7.Ambient Temperatures

The 05-16 is designed to operate over the temperature range of -40 to 150 F (-40 to 65.56 C). Care should be taken to insure that it operates within this range. If these limits are exceeded, the ignitor should be relocated to an area that is within this temperature range.

8.Relative Humidity

The 05-16 is coated for moisture resistance to 90 percent relative humidity. Caution should be taken to protect the component board against direct exposure to water.

 

 

SERVICE HINT, DIAGNOSIS AND CORRECTIVE MEASURES

WHAT’S WRONG

WHY

WHAT TO DO

1.

Lockout Occurs 3-10

1.

Reverse polarity.

Para. 1.

 

seconds after ignition.

2.

System improperly grounded

Para. 2.

 

 

3.

Gas pressure too high, causing

Check to ensure input pressure

 

 

 

flame to lift off burner.

as specified on manufacturer’s

 

 

 

 

data plate.

 

 

4.

Sensor probe incorrectly

Para. 6.

 

 

 

positioned in flame pattern.

 

2.

Flame not established.

 

Spark gap too small.

Para. 3a

 

Arching to ground.

 

Spark too large.

Para. 3a.

3.

No spark.

 

Corroded connector.

Para. 3b.

4.

Arching other than across gap.

1.

Cracked or dirty insulator.

Para. 3c.

 

 

2.

Broken high voltage lead.

Para. 3c.

 

Weak Spark.

 

High voltage lead too close to

Para. 3e.

 

 

 

metal surface.

 

No flame.

 

Valve malfunction.

Para. 4.

Low flame current and/or

 

Electrode improperly placed.

Para. 5.

nuisance lockouts.

 

 

 

Nuisance lockouts.

1.

Flame current falls below 2.5 uA

Para. 6.

 

 

2.

Low gas pressure.

Check to ensure that manifold

 

 

 

 

pressure meets manufacturer’s

 

 

 

 

specifications.

 

WIRING DIAGRAM

 

WIRING DIAGRAM

 

HONEYWELL S87KDI SYSTEM

LADDER FORM

18

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Wayne P250AF-DI, P250AF-EP, P265-EP, P265F Service HINT, Diagnosis and Corrective Measures, WHAT’S Wrong WHY What to do
Page 18 Page 20

P265, P250AF, P265-EP, P250AF-DI, P250AF-EP specifications

Wayne P265-EP, P250AF-EP, P250AF-DI, P265F, and P265 are a series of fuel dispensing pumps known for their reliability and advanced technology. These pumps are engineered to meet the demanding needs of various fueling environments, making them suitable for both commercial and retail operations.

The Wayne P265-EP is particularly notable for its compact design and efficient performance. It features a user-friendly interface, making it easy for operators to manage fuel dispensing. Its electronic controller allows for precise monitoring and control of fuel flow, ensuring accurate transactions while minimizing wastage. The pump is also equipped with advanced security features to prevent unauthorized access.

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The P265F model emphasizes high performance and durability. Constructed with robust materials, it withstands harsh environmental conditions, making it ideal for outdoor installations. Featuring an advanced filtration system, it enhances fuel quality by removing contaminants, thereby extending the lifespan of both the pump and the connected storage tanks. Enhanced hydraulic efficiency translates to faster fueling times, increasing customer satisfaction at busy fueling stations.

Lastly, the P265 model stands out for its automatic nozzle shut-off function, which significantly reduces the risk of overfills and spills. This feature safeguards both the environment and the business against potential liabilities associated with fuel spillage.

In summary, the Wayne P265-EP, P250AF-EP, P250AF-DI, P265F, and P265 pumps incorporate cutting-edge technologies that prioritize efficiency, safety, and user convenience. Their advanced features ensure reliable performance across a variety of fueling applications, making them a preferred choice for operators seeking high-quality dispensing solutions. Whether it's speed, security, or flexibility, Wayne pumps are engineered to meet the evolving needs of the fuel distribution industry.
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