Dayton 3VH20 Dayton Propane Construction Heater, Propane Supply, Ventilation, Installation

Dayton Operating Instructions and Parts Manual 3VH20

Dayton® Propane

Construction Heater

Propane Supply

Propane gas and propane tank(s) must be provided by the customer.

Use this heater only with a propane vapor withdrawal supply system. See Chapter 5 of the Standard for Storage and Handling of Liquified Petroleum Gas, ANSI/NFPA 58. Your local library or fire department will have this booklet.

The amount of propane gas ready for use from propane tanks varies. Two factors decide this amount.

1.The amount of propane gas in tank(s)

2.The temperature of tank(s)

This heater is designed to operate with a minimum 20-pound propane tank. You may need two or more tanks or one larger tank in colder weather. Use a 100-pound tank for longer operation or in very cold weather. Less gas is vaporized at lower temperatures. Your local propane gas dealer will help you select the proper supply system.

Average Temperature (ºF)	Number of
at Tank Location	Tanks (100-lbs)
40°	1
32°	1
20°	1
10°	1
0°	1
-10°	2
-20°	2

Ventilation

Provide at least an 120-square-inch

opening of fresh, outside air while running heater. If proper fresh, outside air ventilation is not provided, carbon monoxide poisoning can occur. Provide proper fresh, outside air ventilation before running heater.

Installation

Review and understand the

warnings in the General Safety Infor- mation section. They are needed to safely operate this heater. Follow all local codes when using this heater.

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.

1.Make sure heater regulator knob is in the OFF position.

2.Wrench tighten the fuel connector nut into the propane tank valve (See Figure 3). Turn fuel connector nut counter- clockwise to tighten. Threads are left- handed.

Regulator

Propane

Tank

3.Connect hose to the inlet connector (See Figure 4). Tighten firmly using wrench.

Inlet

Connector

Hose

Figure 4 - Hose and Inlet Connector

4.Open propane supply valve on propane tank(s) slowly.

NOTE: If not opened slowly, excess-flow check valve on propane tank may stop gas flow. If this happens, you may hear a click inside the regulator assembly. This is the check valve closing. To reset the excess flow check valve, close propane supply valve and open it again 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 propane supply valve.

Figure 3 - Connecting Heater to Propane Tank

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