(©January, 2008)
ir Technology Systems, Inc.
BNB Ultrasonic Humidifier Installation, Operation & Maintenance Manual
1-4
1.4 Specifications
Type Ultrasonic Humidifier BNB
Model BNB1000 BNB2000 BNB3000 BNB4000 BNB5000 BNB8000
Nebulizing capacity (lb/h) 2.2 4.4 6.6 8.8 11.0 17.6
Nos. of Ultrasonic nebulizer unit 2 4 6 8 10 16
Power source Single-phase 48VAC; 50/60Hz
Rated power consumption (W) 100 180 250 340 430 670
Weight (lb) 15.4 19.8 24.3 30.9 35.3 50.7
Electrical Characteristics
Allowable voltage range Within ±10% on primary side of transformer; 51VAC (max.) on secondary side.
Insulation resistance 100 M.Ohms or more (excluding solid-state components).
Dielectric voltage withstand Operational when 1500VAC is applied for 1 minute (excluding solid-state components).
Operating conditions
Ambient working conditions 34 to 122°F; 90%RH or less.
Water supply quality DI or RO water. Water conductance <20 microsiemens purity.
Water supply pressure 30 to 75 psi
Water supply temperature 40°F to 104°F
Parts to be provided by user
Humidistat, DI or RO supply water, Water supply valve, Water supply tubing (1/4” stainless steel or poly tubing rated
for DI water, Transformer, Power source and wiring to Transformer (Wire type: 16AWG minimum rated 125V, 176°F).
Notes: 1) Calcium, magnesium or other agents that may be contained in the supply water are atomized into the
air together with the mist and may form white powders after the water has evaporated. To avoid this,
always use DI or RO supply water.
2) The nebulizing capacity of the transducer in the ultrasonic nebulizer unit decreases gradually with
use. It should usually be exchanged after about 10,000 to 15,000 hours of operation, (depending on
water quality and suitable voltage), although the unit may continue to run as long as it’s effective
capacity meets the particular requirements.
3) To ensure full warranty coverage, the input voltage to the humidifier must not exceed 51VAC. If the
voltage on the secondary side of the transformer exceeds 51VAC, damage to the transducers and
print plates will result.
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