Installation and Service Manual

TABLE-N

Ignition Control Diagnostic Codes

Code Sequence

 

Condition

 

 

Constant ON

System OK, no faults present.

 

Constant OFF

Possible

control

fault,

check

power;

 

LED may be

effective, do

not

 

replace control if all operational

 

sequences

function

properly,

see

 

TroubleShooting Guide.

 

 

One Flash

Low Air, check air pressure switch and

 

hoses to pressure sensing points, fan,

 

venting and sealing of pressurized

 

chamber.

 

 

 

 

Note: Brief flashing normal on fan start-up/proving.

 

Two Flashes

Flame without call for heat, check for a

 

gas valve stuck in the open position, air,

 

venting, burners and the combustion

 

process. Fan will remain on.

 

Three Flashes Lockout due to flame failure, push reset button on outer control panel after correcting ignition problem. Initial heater start up without properly bleeding air from the gas line may require multiple reset functions to achieve proper ignition.

Four Flashes Igniter failure, igniter will not maintain minimum 2.75 amp current draw, caused by low voltage, bad wiring/continuity, high resistance or igniter failure.

Five Flashes Power supply problem, check for low supply voltage or transformer output less than 18VAC.

Six Flashes

Replace ignition module, internal fault.

circuit, circuit breaker for the control circuit, switching relays for component operation and wiring harness connections to the pool heater’s components. The control panels are common and may be switched between pool heaters for troubleshooting.

Removing the Control Panel

1.Pull the control panel out as far as it will go.

2.Remove the multi-pin connector blocks from the top and right side of the control panel.

3.Use a 1/2" box wrench or socket wrench to remove the bolt on the right side of the control panel.

4.Remove the entire control panel.

5.Reinstall the control panel in the reverse order.

￿CAUTION: Control panel is heavy and awkward to handle when removed. Carefully support the control panel when removing.

Ignition and Control Timings

Proven Pilot Hot Surface Ignition System F-9 on 500,000 through 2,070,000 Btu/hr models with One Hot Surface Ignition Module.

Hot Surface Ignition Module Timings (Nominal)

Prepurge:

15 Seconds

Hot Surface Igniter Heat-up Time: 25 - 35 seconds

Main Burner Flame Establishing Period: 4 Seconds

Failure Response Time: 0.8 Seconds at less than 0.5 µA flame current

Flame Current: 5 - 15 µA

Post-purge:

30 Seconds

Optional Pump Delay Timing: 30 Seconds after burner shutdown

Access to Internal Control Panel

The control panel is accessed by turning the knurled knob located at the bottom center of the exterior control panel. Pull the panel out at the bottom. The door will tilt into unit until it comes free from the outer top. The outer control panel has an overlay attached to the exterior surface which indicates the function of each of the pool heater’s indicating lights and a clear window to view the digital temperature display from the temperature control. The thermostat and diagnostic light board are mounted to the back of the control panel door.

The control panel assembly is mounted on a slide out chassis to allow easy access to the components on the panel. The control panel contains the ignition module, transformer for the 24 VAC control

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Lochinvar F0600187510 service manual Access to Internal Control Panel, Table-N, Ignition and Control Timings
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F0600187510 specifications

The Lochinvar F0600187510 stands out as a premium combination boiler that caters to the heating and hot water needs of residential properties. Known for its energy efficiency and advanced technology, this model is ideal for homeowners seeking both comfort and cost savings.

One of the primary features of the Lochinvar F0600187510 is its exceptional energy efficiency. With an impressive AFUE (Annual Fuel Utilization Efficiency) rating, this boiler redefines performance standards, effectively converting a high percentage of the energy it consumes into usable heat. This not only helps in reducing energy bills but also contributes to lower carbon emissions, making it an environmentally responsible choice.

The F0600187510 is equipped with Lochinvar's advanced control system, which allows for precise temperature regulation. This system includes a user-friendly digital display, enabling homeowners to easily adjust settings for their specific heating and hot water requirements. The boiler also offers weather compensation features that optimize performance based on outdoor temperatures, ensuring maximum efficiency throughout the year.

In terms of hot water production, this model features a built-in indirect water heater design, which provides an abundant supply of domestic hot water on demand. This is ideal for households with high hot water usage, as the system can deliver multiple gallons per minute without interruption.

Moreover, the compact design of the Lochinvar F0600187510 allows for flexible installation options, making it suitable for various settings, including tight spaces. Its robust construction ensures durability and reliability, giving homeowners peace of mind regarding long-term performance.

Safety is another significant characteristic of this combination boiler. It comes with multiple built-in safety features, including flame detection, pressure sensors, and overheat protection, ensuring the system operates securely and efficiently.

Finally, the Lochinvar F0600187510 is backed by a solid warranty, providing homeowners with additional assurance of quality and support. Overall, this boiler represents a harmonious blend of innovative technology, efficiency, and reliability, making it a top choice for modern residential heating and hot water solutions.
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