Dayton 3VH19 manual Natural Gas Supply, Operation, Ventilation, Installation, To Start Heater

Dayton Operating Instructions and Parts Manual 3VH19

Dayton® Natural Gas

Construction Heater

Natural Gas Supply

The user must furnish the natural gas supply and the connections to the heater.

Regulate the natural gas supply down from a minimum 6 inches water column to a maximum of 1/2 PSI. The natural gas

Test all gas piping and connections

for leaks after installation or servicing. Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

Operation

Review and understand the

warnings in the Safety Information Section. They are needed to safely operate this heater. Follow all local codes when using this heater.

supply capacity should be able to supply a minimum of 100 cubic feet of gas at pressure for each heater connected to the system.

Consult your natural gas supplier for proper sizing of the natural gas supply lines.

Follow all local ordinances and codes. In the absence of local ordinances and codes, refer to the National Fuel Gas Code Handbook, NFPA54/ANSI Z223.1 and the

1.Provide natural gas supply system.

2.Install plumbing to a low pressure natural gas source. The source must be regulated to 1/2 PSI maximum. The plumbing must be a minimum 3/4 inch i.d. hose or flexible connector not over 10 feet long.

3.Connect the hose to the heater at the 1/2 inch SAE flare fitting at the valve inlet. Tighten all fittings with a wrench.

TO START HEATER

1.Follow all installation, ventilation, and safety information.

2.Locate heater on stable and level surface. Make sure strong drafts do not blow on heater.

3.Open gas supply slowly.

4.Turn control valve knob 1/4 turn to left to PILOT Position (see Figure 4).

Natural gas Installation Code, CAN/CGA B149.2.

Ventilation

Provide at least a 3-square-foot

opening of fresh, outside air while running heater. If proper fresh, outside air ventilation is not provided, carbon

PILOT

		ON	OFF
Flare	ON	FROM “PILOT” POSITION		OFF
		SLIGHT PUSH TO
Fitting		TURN OFF
		FULL PUSH TO
		LIGHT

Figure 4 - PILOT Position

monoxide poisoning can occur. Provide proper fresh, outside air ventilation before running heater.

FRESH OUTSIDE AIR OPENING REQUIREMENTS

Heater Size	Square feet opening
100,000 Btu/Hr	3.0

Installation

Review and understand the

warnings in the Safety Information Section, page 2. They are needed to safely operate this heater. Follow all local codes when using this heater.

Hose

Figure 3 - Hose and Valve Inlet

4.Open natural gas supply valve slowly.

5.Check all connections for leaks.

Never use an open flame to check for a leak. Apply a mixture of liquid soap

and water to all joints. Bubbles forming show a leak that must be corrected. Correct all leaks at once.

6. Close natural gas supply valve.

5.Push and hold in control valve knob while pushing red piezo ignitor button. Ignitor may have to be pushed again (3 to 8 times) until pilot lights.

NOTE: If hose is filled with air, allow 20 seconds for gas to reach pilot before pushing ignitor button.

6.After pilot lights, keep control valve knob depressed for at least 30 seconds, then release.

7.If pilot light goes out, repeat steps 4 through 6.

4