Dayton 3E134E Troubleshooting Guide download pdf (Page 14)

Dayton Installation, Operation, Maintenance and Parts Manual

Dayton High Intensity Heaters

3E132E thru 3E134E, 3E460C thru 3E462C,

5VD57 thru 5VD66, 3VH34 thru 3VH37

Ventilation

It is required that the upper levels of the space to be

heated are properly ventilated to supply combustion

air to the heaters and to sufﬁciently dilute the products

of combustion. It is also required that the ﬂue discharge

area is kept clear of gas piping and electrical wiring (see

Figure 2.6).

This infrared heater must be vented in accordance with

national, state, provincial and local codes and the

guidelines in this manual. In the United Sates refer to

the latest edition of ANSI Z223.1 (NFPA 54) and in

Canada refer to the latest edition of the CAN/CGA

B149.2 Standard.

Provisions must also be made to provide sufﬁcient fresh

air intake area and exhaust air outlet area. For proper

ventilation, a positive air displacement of 4.0 CFM/1000

BTU/h of gas consumed must be provided.

Where insufﬁcient air movement exists, induced air

displacement is required. A balanced system is essential

to avoid negative building pressure which causes

excessive inﬁltration, unfavorable drafts and affects

combustion efﬁciency.

Air displacement may be accomplished by either natural

or mechanical means. Mechanical exhausters are

preferred and typically mounted at high points on the

roof where stagnant air accumulates inside the building.

For a ﬂat roof, considerations of prevailing winds, high

and low pressure areas, and distribution of air

movement must be taken into consideration when

locating exhausters.

Figure 2.6 Hot Flue Discharge

Air distribution is best accomplished by using a number

of small exhausters versus one large exhauster. A

minimum of one square inch of inlet area per 1000

Btu/h for combustion air supply must be provided.

Inlet opening in the building should be well distributed

(see Figure 2.1) high in the sidewalls and should direct

incoming air upward to dilute products of combustion

while preventing drafts at lower levels. Inlets are

typically 1 to 3 sq. ft.

Local codes may require that mechanical exhaust

systems be interlocked with heaters to enable both to

function simultaneously (see page 17, Figure 2.7) or

allow control of exhausters with a ceiling mounted

humidistat.

Dayton

Important! Do not

install gas piping or

electrical wiring

above the ﬂue

discharge area!

Manifold/

Control End

Down

Flue discharge

SIDE VIEW

20˚ - 35˚

WARNING

Insufﬁcient ventilation may result in

property damage, health problems,

carbon monoxide poisoning, injury or

death.

Ventilate enclosed spaces and buildings

according to national, state, provincial

and local codes. Failure to provide

adequate ventilation may result in

equipment malfunctions, condensation and other air

quality issues.

CAUTION

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Dayton 3E134E Troubleshooting Guide Page 14

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