DriSteem Vaporstream Spécifications télécharger pdf (Page 67)

VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

INSPECTION AND MAINTENANCE

1. Annually (also recommended when maintenance is performed)

• All safety devices in the control circuit should be cycled on and off to

verify they are functioning. These include:

– High limit switch

– Airﬂow proving switch

– Low water level probe. Pull out probe plug; ﬁll valve should energize.

• Inspect tank and gaskets for leaks.

• Measure current draw of heaters and verify amp values per stage by

comparing to the wiring diagram located inside the control cabinet. This

identiﬁes any burned out heaters. Only qualiﬁed electrical personnel

should perform this task.

2. Seasonally (or as required, depending on water quality)

• Cleaning the tank

– Remove cleanout plate; slide the cleanout tray out, and dispose of

any loose scale that has collected in the tray.

– Remove any additional scale that has accumulated on the bottom

of the humidiﬁer tank. This should be done before the scale buildup

reaches the bottom of the heaters.

– Inspect the area inside the tank in front of the drain valve ﬁtting and

thoroughly clean all scale and mineral buildup from that area.

• Cleaning the probes

– The probe assembly is located under the heater terminal cover.

Access the probe assembly through the probe cover located on the

end of the heater terminal cover.

– Disconnect the probe plug and cable assembly and unscrew the

probe rod assembly from the humidiﬁer probe housing using the

probe tool (see Figure 63-1).

– Inspect the probe housing and clean, ensuring that all the housing

passageways for water ﬂow are clear. Remove the housing from the

holding bracket by removing the humidiﬁer cover and sliding the

housing horizontally toward the open end of the bracket.

– When sliding probe housing into bracket from which it hangs, orient

housing so neither water ﬂow slot directly faces tank wall at back

end of bracket.

– The scale should ﬂake off easily from the probe assembly rods.

– The bottom 3/8" (10 mm) of each rod is the sensing portion; clean

these areas with a wire brush, abrasive pad, or steel wool.

– Inspect the composite plastic probe rod assembly for any signs

of cracking, roughness, or deterioration. If found, replace probe

assembly.

– Apply silicon sealant to the probe gasket, and reassemble the probe

assembly using the probe tool (see Figure 63-1).

Tap/softened water:

Remove and install probe assembly with

supplied probe tool. Attach a 3/8" square

drive to the probe tool.

When installing, torque probe assembly to 120

in-lbs (10 ft-lbs; 13.6 N-m). Probe tools can be

ordered from your DriSteem representative (Part

no. 185101).

MAINTENANCE

Probe tool

OM-7395X

mc_060310_0735

FIGURE 63-1: PROBE TOOL

Inspection and maintenance

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DriSteem Vaporstream Spécifications Page 67

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