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Gas supply sizing, Connecting hose to heater – L.B. White 350 Premier Dual Fuel User Manual

Page 8

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10. This heater is configured for use for L.P. gas vapor

withdrawal. Do not use the heater in an L.P. gas

liquid withdrawal system or application. If you are in

doubt, contact the L.B. White Co., Inc.

11. The heater must be installed so as not to interfere

with or obstruct normal exits, emergency exits, doors

and walkways.

12. Railing, fencing or suitable substitute materials must

be used to keep the heating equipment from any

people using and visiting the structure.

13. The heater shall be located so that rain, ice, or snow

drainage from the structure does not af fect

equipment operation. If the heater is mounted

outside, it must be mounted above any pooled or

standing water. If the unit is to be located on the

ground, a surrounding trench is recommended to

drain any rain, ice or snow away from the unit.

4. The ground and surrounding terrain must be cleared

of any combustible vegetation and other combustible

materials when the heater is utilized outside.

15. Eventually, like all electrical/mechanical devices, the

thermostat can fail. Thermostat failure may result in

an underheating condition. The thermostat should be

tested to make sure it turns the heater on and off

within a temperature differential of ±3°F.

16. Take time to understand how to operate and maintain

the heater by using this Owner’s Manual. Make sure

you know how to shut off the gas supply to the

building and also to the individual heater. Contact

your fuel gas supplier if you have any questions.

17. Any defects found in performing any of the service or

maintenance procedures must be eliminated and

defective parts replaced immediately. The heater

must be retested by properly qualified service

personnel before placing the heater back into use.

8

GAS SUPPLY SIZING

The vaporization of propane is affected by several factors:

the surface area of the container, the liquid level of

propane, temperature surrounding the container, and the

relative humidity. All of these factors are specific to a site.

Therefore, a degree of experience and judgement is

required to select the proper propane supply.

Although experience is the best guide, the following

recommendations can be used as a starting point. The

table is based on experience in northern climates where

cold weather and high humidity are prevalent in the winter.

If more or less favorable conditions prevail at a specific site,

adjustments can be made on the basis of experience.

R

Reeccoom

mm

meennddeedd G

Gaass S

Suuppppllyy::

Propane Supply Tank:

Heater(s)/Container:

500 gallon

1

1,000 gallon

2

If more than one gas supply container is used per heater,

the containers must be manifolded together to allow vapor

withdrawal simultaneously from multiple containers.

Manifold system shall be in accordance with NFPA 58.

1. Thread swivel to connector at gas inlet of heater. See

Fig. 1. Tighten securely.

2. The hose may be coiled up and hung on the hose

hanger, with the regulator stored within the regulator

storage bracket.

FIG. 1

CONNECTING HOSE TO HEATER

SWIVEL