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Bair Hugger Model 750 Temperature Management Unit Service Manual
English 202522A
Check the 3M
TM
Bair Hugger
TM
therapy website to ensure you have the most recent version of this document.
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Specifications
Physical Characteristics
dimensions
12�5" high x 13�5" deep x 10" wide
31�5 cm high x 34 cm deep x 25 cm wide
weight
16�3 lb (7�4 kg)
relative noise level
55 dBA
hose
Flexible, compatible with the Bair Hugger brand 241
blood/fluid warming system�
filtration system
High efficiency 0�2 µm filter
recommended filter change
Every 12 months or 500 hours of use�
mounting
Can be clamped to an IV pole, placed on a hard
surface, or mounted to the rolling stand accessory�
Temperature Characteristics
recommended operating environment
Temperature:
15°C-25°C
Humidity:
Max relative humidity 80% (up to
31
°C) decreasing linearly to 50%
relative humidity at 40°C
Altitude:
Max 2,000m
temperature control
Electronically controlled�
heat generated
1644 BTU/hr (average), 482 W (average)
operating temperatures
Average temperatures at the end of the hose:
HIGH: 43° ± 1�5°C
109�4° ± 2�7°F
MED: 38° ± 1�5°C
100�4° ± 2�7°F
LOW: 32° ± 1�5°C
89�6° ± 2�7°F
time to reach operating temperature
2 - 5 minutes (dependent on blanket model) Time
required for the contact surface temperature to heat
up from 23 ± 2°C to 37°C (73 ± 2°F to 99°F)
storage/transport temperature
-20°C to 45°C (-4°F to 113°F) Store all components
in a cool, dry place when not in use�
Safety System
thermostat
Independent electronic circuit; thermal cutoff shuts
the heater OFF to ensure hose end air remains below
56°C (53°C ± 3°C typical); back-up over-temperature
detection at hose inlet�
alarm system
Over-temperature (≤56°C, 53°C ± 3°C typical):
red Over-Temp indicator light flashes, alarm
sounds, heater and blower shut down, operating
indicator lights turn OFF, control panel becomes
unresponsive�
Fault: amber
Fault
indicator light flashes, alarm
sounds�
overcurrent protection
Dual input fused lines�
