Installation and Service Manual

Combustion Air Fans

Both the 500,000 - 750,000 Btu/hr models and the 990,000 - 2,070,000 Btu/hr models use a fan-assisted combustion process. The 500,000 - 750,000 Btu/hr models have one fan

and the 990,000 - 2,070,000 Btu/hr models use two fans to supply combustion air to the burners.

Fan Cleaning

Check each combustion air fan every six months. Clean the fan as required when installed in a dusty or dirty location. Oiling is not required.

Combustion Air Fan Adjustment

The combustion air fans are factory pre-set and should not need adjustment in most cases. Follow the steps below to adjust the fan

if a continuous Low Air status code occurs.

Figure 53 – Loosening Fan Transition Box Screws

Note: On the 500,000 - 750,000 Btu/hr models the air shutter is adjusted on the side of the fan duct as depicted in Figure 52. On the 990,000 - 2,070,000 Btu/hr models the air shutter is adjusted on the rear of the fan duct as depicted in Figure 54.

1. Check for proper installation and draft in the venting system. Correct as required.

2. The following pressure settings are for installations up to 4000 feet altitude. Contact the factory for high altitude air pressure settings.

Adjusting Differential Air Pressure

The following is a recommended method for setting the differential air pressure (ΔP) for each fan.

LESS

AIR

 

EAIR

R

O

M

AIR SHUTTER

Figure 52 – Adjusting Air Shutter 500,000 - 750,000 Btu/hr

Figure 54 – Adjusting Air Shutter 990,000 - 2,070,000 Btu/hr Models

Set-Up Procedure

Beside the fan duct is an air pressure switch with a large and a small tube delivering pressure from points inside the pool heater (see Figure 55). The pressure in the large tube is the chamber pressure. The pressure in the small tube is the burner pressure. They act together to make the pressure switch. By disconnecting the caps from the tees in the pressure switch hoses and connecting them to either side of a manometer, you can read the differential pressure to the switch.

The left pressure tapping connection on the manometer connects to the tee in the tubing from the pool heater front chamber and the right pressure tapping connection on the manometer connects to the tee in the small tubing from the burner.

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Lochinvar F0600187510 Adjusting Differential Air Pressure, Combustion Air Fans, Fan Cleaning, Set-Up Procedure
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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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