DriSteem Vaporstream Specifications download pdf (Page 14)

Page 14 • DRI-STEEM Vaporstream humidifier

Vaporstream VLC piping:

Standard water

Figure 14-1:

Field piping overview, Vaporstream VLC with standard water

Table 14-1:

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

mc_022310_1325

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.

VLC-OM-010

Figure 14-2:

Piping, Vaporstream VLC with standard

water, Models 2-1 through 5-1

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 14-1).

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 water seal

must be below drain valve to ensure

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 25 to 80 psi (172 to 552 kPa);

water conductivity 100 μS/cm minimum. If water piping to

humidiﬁer is nonmetallic, ﬁrst 3' (1 m) of water supply piping from

humidiﬁer should be metallic. To isolate steam from nonmetallic

supply piping, put a 2" (50 mm) water seal or loop in supply line.

See H1 in

Table 14-1

mc_022310_1255

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 31 32

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