Carrier 16DF013-050 installation instructions Field Piping, Ð Gas Train, Typical

Fuel System Installation Ð See Fig. 12-14 for typi- cal gas train and oil supply system arrangements. Refer to burner manual supplied with the burner for installation in- structions on the particular version of gas train and/or oil supply system used with your application. These systems are supplied pre-assembled, and with pre-installed interconnec- tion ®ttings.

Do not use Te¯on tape on any threaded connections as a gas or oil pipe sealant. Loose tape pieces can cause valve leakage and are a safety hazard. Use a pipe joint compound.

GAS TRAIN Ð The high-gas pressure switch is mounted on the gas train piping for convenience only, and does not monitor the gas pressure at that location. A brass pipe tee and a coil of 3/8-in. aluminum tubing with ®ttings are sup- plied to connect the sensing line between the pressure switch and the top of the burner manifold, as shown with dashed lines on the gas train piping schematic.

Another coil of 3/8-in. aluminum tubing with compres- sion ®ttings is provided for the pilot connection between the pilot shutoff valve (mounted ahead of the main manual shut- off valve) and the pilot gas pressure regulator (mounted on the burner).

IMPORTANT: Do not use copper tubing for the gas pilot supply.

Gas supply and vent connections are discussed under Con- nect Fuel Piping in the Field Piping section of this manual.

OIL SUPPLY SYSTEM Ð This burner uses a separate motor- driven oil pump which should be located close to the burner and secured to the ¯oor. The oil pump connections are iden- ti®ed with tags for suction (supply) and return lines. The pip- ing diagram with mounting dimensions and port sizes for your particular application is shown in the burner manual. Oil supply and return connections are discussed under Con- nect Fuel Piping in the Field Piping section of this manual.

FIELD PIPING

Connect Water Piping Ð Install piping using job data, piping drawings, and procedures outlined below. A typical piping installation is shown in Fig. 15.

1.Make sure all connections to water box covers allow open- ing of covers for maintenance.

2.Installation and piping should allow sufficient access for cleaning or replacing tubes.

3.Install pipe hangers where needed. Make sure no weight or stress is placed on water box nozzles or ¯anges.

ITEM	DESCRIPTION
1	Pilot Shutoff Cock
2	Pilot Gas Pressure Regulator
3	Second Safety Shutoff
	Pilot Valve (if used)

4Safety Shutoff Pilot Valve

5Gas Pressure Gage (if used)

6Manual Leak Test Valve

7Butter¯y Gas Valve

8High Gas Pressure Switch

9Safety Shutoff Gas Valve

10Second Safety Shutoff Gas Valve

11Low Gas Pressure Switch

12Gas Pressure Regulator

13Manual Gas Shutoff Valve

NOTES:

1.Piping and ®ttings shown dashed to be supplied and installed by the burner installation contractor.

2.For proper regulation and performance, regulators with internal control require at least 5 pipe diameters of straight pipe on the outlet side un- interrupted with ®ttings, elbows, etc.

3.The outlet screwed connections must conform with good piping prac- tices, free of excess thread engagement.

4.The top cap at the spring must be in place or unstable operation can occur.

5.For parts not identi®ed, see burner manufacturer's material list.

Fig. 12 Ð Gas Train, Typical

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