Slant/Fin Jaguar Model J-390, Venting And Air Intake System Regular Inspection, Gas Piping

16 Jaguar Model J-390

VENTING AND AIR INTAKE SYSTEM REGULAR INSPECTION

A.Inspect the system regularly for condensation, corrosion, sagging and/or physical damage. A qualified professional should service the boiler annually and include such an inspection at that time. The homeowner should look over the system monthly for damage, water stains, any signs of rust, other corrosions or separation of the vent and air intake piping (if direct-vent).

B.Should an inspection turn up signs of condensation, corrosion, sagging or damage, the boiler should be shut down immediately and the condition should be corrected by a qualified professional.

CONDENSATE REMOVAL SYSTEM

The Jaguar J-390 boiler is equipped with a built-in condensation drain and trap system. This system consists of two traps, one being dedicated to the condensate produced by the boiler, and another being dedicated to the condensate produced within the vent piping. (See page 13 for the location of each of the traps). Both of these traps must be filled with water. This is most easily accomplished by pouring water from a small container into the vent connector at the top of the boiler, before the vent pipe is attached, until the tubing loop trap in the rear of the boiler is visi- bly filled. DO NOT operate the boiler without filling the trap with water to prevent flue gas discharge into space. Periodic inspection should be made of this assembly for deterioration of the tubing and components, and to insure that the traps are not plugged. If any part is plugged or appears to have excessive sediment within, it should be removed from the drain assembly, have the obstruc- tion cleared, refilled with water and reinstalled as before.

A 3/4” PVC tee assembly, located in the rear of the boiler jacket, is provided to run the condensate liquid from the boiler. Connect the plastic tubing that will be run to the drain to the bottom take- off of the tee. Leave the top take-off of the tee open, to act as a vacuum breaker. If the building drain is above the bottom portion of the tee, a condensate removal pump will be required. This pump must have an overflow switch, and be compatible with the acidic condensate liquid, as must all fittings and the tubing used in this condensate removal system. (See Figure 14).

No part of the condensate removal system can be exposed to freezing temperatures, or any other conditions that could cause blockage. DO NOT run drain tubing to the outside of the building. In addition, certain jurisdictions or drain pipe materials may require a neutralization unit to be installed in the condensate removal system. Any piping other than plastic types will be subject to corrosion or deterioration from the acidic conden

sate, which may have a pH level as low as 3.0. A condensate filter containing lime, marble, or phosphate chips can neutralize the condensate to a pH level above 6.5, which is safe for all drain piping materials. (See Figure 14). The neutralizing filter medium will require periodic changing, to ensure it’s affective- ness. Replacing the medium on an annual basis is recom- mended, or refer to the manufacturer’s instructions for systems that are available for neutralizing condensate.

COMMONWEALTH OF MASSACHUSETTS SPECIAL REQUIREMENT

When the Jaguar J-390 is installed and used in the Common- wealth of Massachusetts, a neutralization unit MUST be installed in the condensate removal system.

GAS PIPING

A.Local installation codes apply. The pipe joint compound used on threads must be resistant to the action of liquefied petroleum gases.

B.The gas supply line to the boiler should run directly from the meter A manual gas supply shut-off valve is provided on the boiler’s gas supply pipe. (See Figure 2, on page 3). Local codes may specify a manual main gas supply shut-off valve to be 5’ above the floor, and a disconnection union at the gas piping entrance to the boiler. In this case, the gas supply shut-off valve must be relocated to the specified location. If the gas supply pipe must be upsized for flow considerations, then the same size main gas supply shut-off valve must be used.

Selecting pipe size for natural gas:

1.Measure or estimate the length of piping from the meter to the installation site.

2.Consult gas supplier for heating value of gas (Btu/cu. ft.).

3.Divide boiler rated input by heating value to find gas flow in piping (cu. ft. per hour).

4.Use table below to select proper pipe size.

EXAMPLE: Distance from gas meter to the boiler is 30ft. Heating value of natural gas is 1020 Btu/cu. Ft. Select proper pipe size.

Gas flow = 390,000 Btu/hr = 382 cu. ft. per hour 1020 Btu/cu. ft.

DRAIN VACUUM BREAKER, LEAVE OPEN

PLASTIC TUBING

NEUTRALIZING UNIT (IF REQUIRED)

CONDENSATE PUMP (IF REQUIRED)

DRAIN INSIDE BUILDING

Figure 14. Condensate disposal system