DriSteem Vaporstream Spécifications télécharger pdf (Page 23)

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 • P a g e 2 3

Figure 23-1:

Field piping overview Vaporstream Model VLDI (DI/RO water models)

Figure 23-1 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 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 previous page for recommended water supply piping for Model VLC (standard water system).

VLC-OM-011

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

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.

• Use this piping conﬁguration when water seal must be elevated above ﬂow line of

drain connection, such as when the humidiﬁer is mounted near the ﬂoor.

• Dashed lines indicate provided by installer

Figure 23-2:

Alternate water seal and drain valve piping

Skim/overﬂow outlet

Open drain required. See ﬁrst note below.

Air gap

Drain

connection

H1 (see table on Page 22)

Top of water seal must be

below skim/overﬂow outlet

VLC-OM-012

Figure 23-3:

VLDI Models 2-1 through 5-1 piping

OM-4004

Drain valve

Fill

valve

Skimmer port

Drain piping

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 pn Page 22).

Air

vent

tube

Optional condensate

return piping from

dispersion

unit

Steam outlet

¾" (DN20) min. drain overﬂow

piping rated for 212 °F (100 °C)

¾" (DN20)

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

¾" pipe thread

(DN20) dispersion unit

condensate return inlet

Overﬂow

Strainer, by installer

(150 mm)

minimum

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

to 552 kPa); ﬁrst 3' (1 m) is recommended to be stainless steel

tubing with a 2" (50 mm) water seal or loop in the supply line to

isolate steam during DI/RO water system maintenance

Drain piping

ﬂow line

Pitch 1/8

/ft (1%)

Open drain required. See ﬁrst note below.

(see

table

below)

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 31 32

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DriSteem Vaporstream Spécifications Page 23

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