Thermolec Application &Technical Notes Bedienungsanleitung PDF herunterladen (Seite 5)

HOW TO SELECT AND SPECIFY IN THREE EASY STEPS

Selecting the heater for your application can be done in three easy steps:

1- Determine heater capacity, voltage and electrical components

2- Determine duct dimensions, air requirements and mechanical options

3- Determine method of control, then select control components

STEP 1 -

DETERMINE HEATER CAP

ACITY, VOLT

AGE AND ELECTRICAL COMPONENTS

Heater capacity

Given CFM (v

olume of air in cubic feet per minute) and

D ºT (temperature r

ise in º F ),

the KW capacity can be determined from the f

ormulas:

NOTE:

The above formulas are for standard air. Consult your Thermolec representative for non-standard air

conditions.

* Maximum air temperature rise for which the heater is designed

** This formula is for quick calculation and contains a loss allowance of 5%.

THREE

EASY

STEPS

KW** =

CFM x Temperature Rise, ºF*

3000

Temperatur

e Rise, ºF =

KW x 3000

CFM

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Thermolec Application &Technical Notes Bedienungsanleitung Seite 5