DriSteem Vapor-Logic Guide d'installation télécharger pdf (Page 6)

VAPOR-LOGIC

OPERATION

Figure 6-1 : Conductivity probe system

VAPOR-LOGIC

KEY PAD / DIGITAL DISPLAY OPERATION

OM-211

Water level - A

Water level - B

Water level - C

A conductivity probe system allows VAPOR-LOGIC

control water levels for optimum operating efficiency. The

three-probe system is monitored by the VAPOR-LOGIC

control, which performs all the necessary logic and timing

functions to provide total water level control and safety

shutdown.

VAPOR-LOGIC

automatically maintains the water level

between the upper two probes A and B. When the water

level falls below probe B, the fill valve is opened until the

water level reaches the upper probe A. (A two second

minimum delay is incorporated in the skim time software

to ensure that turbulence does not cause an inaccurate

fill reading.) An adjustable skim time allows for an

extended skim period (2-60 seconds) to reduce mineral

concentration within the humidifier. This adjustment can

be accessed through the key pad main menu. (See

page 8.) Probe C provides low water protection for the

heating elements. If the water level falls below probe C,

the heat source is de-energized. (See figure 6-1.)

In addition to controlling the water level, VAPOR-LOGIC

determines when the heat source is energized. If there is

a call for humidification, even during the fill cycle, the heat

source will stay on to provide continuous output.

Auto Drain Sequence

VAPOR-LOGIC

is pre-programmed to enter an automatic

drain, flush, and refill cycle based upon the actual time the

humidifier has produced steam. VAPOR-LOGIC

factory-set for a 40 hour (accumulated “ON” time) drain

interval, with 8 minute drain and 8 minute flush durations.

When VAPOR-LOGIC

initiates the auto drain sequence,

all demand for heat is turned off. The drain valve is then

opened to allow the tank to drain. At the end of the drain

cycle the fill valve is opened, initiating the flush cycle. The

drain valve remains open during the flush sequence for

drainage while the fill valve is open. At the completion of

the flush cycle, the drain valve closes, allowing the fill valve

to refill the evaporating chamber. The VAPOR-LOGIC

timers are reset and the humidifier returns to normal

“AUTO” operation.

End of Season Drain

If there is no call for humidification for a 72 hour period,

VAPOR-LOGIC

automatically drains the humidifier. The

drain valve is held open for one hour. The humidifier then

switches into “STDBY” mode until there is a call for

humidification, at which time VAPOR-LOGIC

automatical-

ly refills the evaporating chamber and resumes normal

operation.

The system is provided with an LCD display that has two

lines with sixteen characters per line. This display

provides all of the control, monitoring, and setup informa-

tion.

The key pad has four keys that are used to set and

control the system: MODE, SET, and the UP & DOWN

ARROW keys. (See figure 6-2.)

MODE

The MODE key is used to place the system into one of

four operating modes. Each time MODE is pressed, the

system will move to the next mode: AUTO, STANDBY,

DRAIN, and TEST.

The other three keys are multifunction keys whose

function depends upon the current system mode.

SET

The SET key, if pressed while the system is in either

AUTOMATIC or STANDBY mode, will place the system

into the Main Menu. (Note: if Access Code Protection

has been selected, an additional step is necessary. See

page 7 for further information.) Once in the Main Menu,

pressing SET will move the digital display through the

various Main Menu parameters.

Figure 6-2:

VAPOR-LOGIC

key

pad / digital display

VAPOR-LOGIC

ACTUAL RH: 35%

1 2 3 4 5 6 7 8 9 10 11 ... 15 16

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DriSteem Vapor-Logic Guide d'installation Page 6

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