Commercial Pool Heaters

INSTALLATION Continued

Figure 29 shows a typical pool heater gas train.

The manifold pressure is preset at the factory and adjustment is not usually required. If you must adjust regulator pressure, follow the instructions under Gas Manifold Pressure Adjustment, page 30.

Venting of Combination Gas Valves

The combination gas valve/regulator used on these pool heaters is equipped with an integral vent limiting orifice per ANSI Z21.78. The vent limiter ensures that the volume of gas emitted from the valve in the event of a failed gas diaphragm does not exceed the maximum safe leakage rate allowed by agency requirements. Combination gas valve/regulators equipped with integral vent limiters are not required to have vent or relief lines piped to the outdoors.

Figure 29 – Typical Pool Heater Gas Train Drawing

TABLE-J

Suggested Gas Pipe Size for Single Unit Installations

Btu/hr

 

Distance From Meter (in feet)

 

 

 

 

 

 

 

 

Input

0-50

 

51-100

101-200

201-300

301-500

 

 

 

 

 

 

 

 

 

 

500,000

1 1/4"

 

1 1/2"

2"

2"

 

2 1/2"

 

 

 

 

 

 

 

 

650,000

1 1/2"

 

2"

2"

2 1/2"

 

2 1/2"

 

 

 

 

 

 

 

 

750,000

1 1/2"

 

2"

2"

2 1/2"

 

3"

 

 

 

 

 

 

 

 

990,000

2"

 

2"

2 1/2"

2 1/2"

 

3"

 

 

 

 

 

 

 

 

1,260,000

2"

 

2 1/2"

2 1/2"

3"

 

3"

 

 

 

 

 

 

 

 

1,440,000

2 1/2"

 

2 1/2"

3"

3"

 

3 1/2"

 

 

 

 

 

 

 

 

1,800,000

2 1/2"

 

3"

3"

3 1/2"

 

3 1/2"

 

 

 

 

 

 

 

 

2,070,000

2 1/2"

 

3"

3"

3 1/2"

 

4"

 

 

 

 

 

 

 

 

Combination Gas Valves

These pool heaters fire in a single stage of operation.

Note: This pool heater incorporates a “soft start” feature which lights approximately half of the burners before lighting the remaining burners. Each combination valve consists of a gas regulator and two valve seats to meet the requirements for redundant gas valves. The valve has a gas control knob that must remain in the open position at all times when the pool heater is in service. The gas control valve has pressure taps located on the inlet and discharge sides of the valve. Manifold pressure is adjusted using the regulator located on the valve. A manifold gas pressure tap for each burner stick is located on the discharge side of the valve.

Checking Gas Supply Pressure

Use the following procedure to check gas supply pressure.

1.Turn the main power switch to the “OFF” position.

2.Turn gas valve knobs to the “OFF” position.

3.Shut off gas supply at the field-installed manual gas cock in the gas piping to the pool heater. If fuel supply is L.P. gas, shut off gas supply at the tank.

4.Remove the 1/8" hex plug, located on the “inlet” side of any gas valve. You may also use a tapping on the field-installed main manual gas cock or gas piping. Install a fitting in the inlet pressure tapping suitable to connect to a manometer or magnahelic gauge. Range of scale should be 14" w.c. or greater to check inlet pressure.

5.Turn on gas supply at the manual gas cock, turn on L.P. gas at the tank if required.

6.Turn the power switch to the “ON” position.

7.Turn the gas valve knobs to the “ON” position. Set the temperature control to call for heat. See Operating Temperature Control on page 40 for programming instructions.

8.Observe the gas supply pressure as all burners are firing. Ensure that inlet pressure is within the specified range. See Connecting To Gas Supply, page 26 for minimum and maximum gas supply pressures.

9.If gas pressure is out of range, contact gas utility, gas supplier, qualified installer or service agency to determine necessary steps to provide proper gas pressure to the pool heater.

10.If gas supply pressure is within normal range, turn the power switch to the “OFF” position.

11.Turn gas valve knobs to the “OFF” position.

12.Shut off gas supply at the manual gas cock in the gas piping to the pool heater. If fuel supply is L.P. gas, shut off gas supply at the tank.

28

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Lochinvar F0600187510 service manual Venting of Combination Gas Valves, Checking Gas Supply Pressure, Table-J
Page 27 Page 29

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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