DriSteem Vaporstream Specifikace stáhnout pdf (Strana 65)

P a g e 6 0 • D R I - S T E E M D e s i g n G u i d e

D R I - S T E E M D e s i g n G u i d e • P a g e 6 1

Placing a dispersion assembly in a primary/secondary system

(see Figure 61-1)

This type of system is commonly applied to facilities where most

of the building requires one level of humidity (typically to meet

comfort requirements) and part of the building requires additional

humidity. In Figure 61-1, the primary humidification system is

within the main air handling unit. The secondary humidification

system is located close to the point of steam discharge into the

secondary area.

Sensor and transmitter locations are critical (see Figure 62-1 on

next page)

Sensor or transmitter location has a significant impact on

humidifier performance. In most cases, we recommend that you do

not interchange duct and room humidity devices. Room humidity

devices are calibrated with zero or little airflow; whereas duct

humidity devices require air passing across them. Recommended

sensor locations (next page):

Figure 61-1:

Placing a dispersion assembly in a primary/secondary system

Filter mixing box

Before humidier:

50 °F (10 °C), 47% RH

Primary humidier

dispersion assembly

After humidier:

50 °F (10 °C), 60% RH

Room transmitter:

65 °F (18 °C),

50% RH

Secondary

humidier

dispersion

assembly

50 °F (10 °C)

60% RH

70 °F (21 °C), 30% RH

Primary area:

70 °F (21 °C),

30% RH

50 °F (10 °C), 60% RH

Secondary

humidied

area

Secondary

humidier

evaporating

chamber

VAV

box

Exhaust airOutside air

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