DriSteem Vaporstream Specifikace Strana 31

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VAPORSTREAM INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Vaporstream humidifiers have a 1" (25 mm) internal air gap to prevent back
siphoning into a potable water system. Some governing codes may require
additional protection, such as a vacuum breaker or backflow preventer.
The supply water pressure range must be 25 to 80 psi (172 to 552 kPa).
TAP/SOFTENED WATER SUPPLY PIPING
The water supply assembly for a tap/softened water Vaporstream humidifier
includes a strainer, needle valve, and fill solenoid. The pipe connection is a
1/4" pipe thread (DN8), except for Vaporstream humidifiers in Europe, which
have a 3/8" pipe thread (DN10) connection.
When using nonmetallic tubing for supply water, it must be rated for 212 °F
(100 °C) minimum continuous operating temperature. DriSteem recommends
installing 3' (914 mm) of non-insulated metallic pipe directly off the humidifier
(between the humidifier and the nonmetallic tubing).
If using nonmetallic supply water tubing, DriSteem recommends making a
2" (50 mm) water seal or loop in the supply line to isolate steam from the
nonmetallic tubing. See Figure 22-1.
The minimum water conductivity for tap/softened water Vaporstream
humidifiers is 30 μS/cm.
FILL NOISE IN TAP/SOFTENED WATER HUMIDIFIER
The primary component of the water supply assembly is the solenoid valve;
therefore, noise can be expected during fill cycles.
If water hammer occurs when the fill solenoid closes, the best solution is to
install a shock arrester. The noise might be diminished by reducing the supply
water pressure (minimum 25 psi [172 kPa]) or using flexible tubing rated for
212 °F (100 °C) minimum continuous operating temperature.
During a fill cycle, the supply water drops the water temperature in the tank
and may collapse the steam, which can cause a low rolling sound. To diminish
this, adjust the needle valve to decrease the water fill rate and/or use hot
supply water.
INSTALLATION
Water supply
Note:
Damage caused by chloride corrosion is not
covered by your DriSteem warranty.
CAUTION
Hot discharge water
Discharge water can be as hot as
212 °F (100 °C) and can damage the
drain plumbing.
To prevent such damage from
humidifiers without water tempering,
allow the tank to cool before draining.
Humidifiers equipped with a water
tempering device such as a DriSteem
Drane-kooler need fresh make-up
water in order to function properly.
Make sure the water supply to the
water tempering device remains open
during draining.
Excessive supply water pressure
Supply water pressure greater than 80
psi (550 kPa) can cause the humidifier
to overflow.
mc_030910_1440
Piping:
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