Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS INSTALLATION Continued, One Opening

Commercial Pool Heaters

INSTALLATION Continued

￿CAUTION: Some pleated filters are too restrictive and could cause air flow problems.

For convenience and flexibility, you can direct the combustion air inlet from either the back or right side of the pool heater. To arrange the combustion air inlet for side entry, follow the steps below.

1.Remove the metal panel from the pool heater’s side wall (see Figure 4).

2.Remove screws from the air filter/bracket assembly.

3.Move the filter/bracket assembly from the rear of the pool heater to the side opening (see Figure 5).

4.Attach the filter/bracket assembly to the pool heater’s side using the pre-drilled screw holes.

5.Attach the metal panel to the rear combustion air opening to seal it off.

Figure 4 – Metal Panel Covering Side Combustion Air Inlet

Figure 5 – Moving Air Filter/Bracket Assembly from Rear of Pool Heater to Side

Combustion Air Options

This pool heater has four combustion air options.

1. Outside Combustion Air, No Ducts

You can direct outside combustion air to this pool heater using either one or two permanent openings.

One Opening

The opening must have a minimum free area of one square inch per 3000 Btu input (7cm2 per kW). You must locate this opening within 12" (30cm) of the top of the enclosure.

Figure 6 – Outside Combustion Air - Single Opening

Two Openings

The combustion air opening must have a minimum free area of one square inch per 4000 Btu/hr input (5.5cm2 per kW). You must locate this opening within 12" (30cm) of the bottom of the enclosure.

The ventilation air opening must have a minimum free area of one square inch per 4000 Btu/hr input (5.5cm2 per kW). You must locate this opening within 12" (30cm) of the top of the enclosure.

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