Concha-Column Performance Characteristics
W
ater Capacity:
Standard 193 ± 10 ml with full reservoir
Low Compliance 40 ± 5 ml
Comfort-Flo Low-Compliance: 40 ± 5 ml
Minimal Compliance column: 40 ± 5 ml
Column Compliance:
Standard: 1.12 ml/cm H
2
O with full reservoir
2.51 ml/cm H
2
O with reservoir at “replace” mark
Low-Compliance: 0.25 ml/cm H
2
O
Comfort-Flo Low-Compliance: 0.25 ml/cm H
2
O
Minimal Compliance: 0.2 ml/cm H
2
O
Column Compressible V
olume:
Standard: 103 ml with full reservoir
268 ml with reservoir at “replace” mark
Low-Compliance: 248 ml ± 12 ml
Comfort-Flo Low-Compliance: 248 ml ± 12 ml
Minimal Compliance: 109 ml
Note: The amount of water in a Standard Concha-Column decreases as water is used,
increasing the compressible volume as water is consumed.
General System Characteristics
Pressure Drop or Resistance to Flow:
System Circuits, Concha Column and Water Reservoir shall be in compliance to ISO 8835-2 for
Pressure Drop (Resistance to Flow). See individual circuit “Instructions For Use” for Resistance
to Flow data.
System Pressures:
The ConchaTherm circuits are designed to exceed the ISO/CD 5367 standard of 60 cm/H
2
O
(6 +/- 0.3 kPa), and are tested to perform at 90 cm/H
2
O.
System Leakage:
System leakage (Circuit, Concha-Column and Water Reservoir) will have a combined leakage of
less than 25 ml/minute at 60 cm/H
2
O (6 +/- 0.3 kPa) per ISO 5367, Annex D.
Noise Levels:
The humidifier noise level under normal operation conditions shall be less than 50 dB measured
1 meter from the device, except while audible alarms are active.
Electrical Characteristics:
Input Voltage and Power: 100-120 V ~, 50-60 Hz, 2.6 A (MAX)
200-240 V ~, 50-60 Hz, 1.9 A (MAX)
Leakage Current: Less than 100 micro-amps
Dielectric Withstand: 1,250 volts minimum for one (1) minute
Temperature Control: Dual thermistor
Power Fuses: Two 4 amp, 5 x 20mm time delayed, 250 V ~
Thermal Fuse: 152 °C non-re-settable
140 °C re-settable
Operating Environment
Temperature:
Operating Temperature: 18 to 29 °C (68 to 85°C)
Note: Operating the humidifier at the extremes of the operating temperature may affect the
temperature output of the device and/or cause nuisance alarms. The humidifier works ideally
at a room temperature of 22 to 26 °C (72 to 79 °F).
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