DriSteem Vaporstream Specifikace stáhnout pdf (Strana 22)

P a g e 2 2 • D R I - S T E E M V a p o r s t r e a m h u m i d i f i e r

Va p o r s t r e a m M o d e l V L C p i p i n g

Figure 22-1:

Field piping overview for Vaporstream Model VLC (standard water models)

Table 22-1:

Heights required to overcome Vaporstream internal pressure

(H1, H2)

Unit output

Water seal height

(H1)

Air vent height

(H2)

kW lbs/hr kg/h inches mm inches mm

≤ 48 ≤ 138 ≤ 62 12 305 22.5 572

49-64 139–183 63–83 15 381 27.5 699

> 64 > 183 > 83 18 457 30.5 775

Figure 22-1 notes:

• Locate air gap only in spaces with adequate temperature and air movement to absorb ﬂash steam; otherwise, condensation may form on nearby surfaces.

Refer to governing codes for drain pipe size and maximum discharge water temperature.

• Offset humidiﬁer from ﬂoor drain to prevent ﬂash steam from rising into the humidiﬁer.

• Dashed lines indicate provided by installer.

• The water supply inlet is more than 1" (25 mm) above the skim/overﬂow port, eliminating the possibility of backﬂow or siphoning from the tank. No

additional backﬂow prevention is required; however, governing codes prevail.

• Damage caused by chloride corrosion is not covered by your DRI-STEEM warranty.

• See the next page for recommended water supply piping for Model VLDI (DI/RO water model).

VLC-OM-010

Figure 22-2:

VLC Models 2-1 through 5-1 piping

OM-4005

Drain piping

Drain valve

Fill valve

Overﬂow port

Install level

¾" (DN20) minimum

condensate drain piping

rated for 212 °F (100 °C)

Air vent height

must be equal to

or greater than

dimension H2

(see table below).

Air vent

tube

Optional condensate

return piping from

dispersion unit

Steam outlet

Shock arrester recommended to reduce water hammer

¾" (DN20) min. drain, skim, and overﬂow

piping rated for 212 °F (100 °C)

Manual or electric drain valve

If run is over 10' (3 m), increase

pipe to 1¼" (DN32)

Flow line of drain piping after the water

seal must be below the drain valve to

ensure that humidiﬁer drains

correctly

1" (25 mm) air gap

Drain piping

ﬂow line

¾" pipe thread

(DN20) dispersion

unit condensate

return inlet

Pitch 1/8"/ft (1%)

(150 mm)

minimum

Open drain required. See ﬁrst note below.

Water supply line; water pressure range 25 psi to 80 psi (172 kPa to

552 kPa); water conductivity minimum 100 µS/cm. If water piping

to humidiﬁer is nonmetallic, we recommend that the ﬁrst 3' (1 m)

of water supply piping from the humidiﬁer be metallic with a 2"

(50 mm) water seal or loop in the supply line to isolate steam from

nonmetallic supply piping.

(see

table

below)

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 31 32

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DriSteem Vaporstream Specifikace Strana 22

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