Service Manual -
B-VMHxxAV-1
IDU-Air Handler 2
1. Feature
1.1 Full Multi-position installation
• This AHU is capable of upflow, downflow, horizontal left, or horizontal right configurations.
1.2 Installation Convenience
• It simplifies the airflow volume adjustment process and saves lots of installation efforts. The traditional adjustment
method needs the installers to manually set the motor speed, according to the installation instruction and ducting
design. It takes lots of time if this thing doesn’t go well and decreases the marginal profits.
1.3 Easy Fault Code Checking
• Thanks to advanced mutual data communication technology, the AHU system can intelligently self-detecting the
failure cause and generate a corresponding code.
• Installer or user can easily check the fault code displayed on the electric function board by just opening the lid.
• It helps you proactively determine the failure cause, prepare for repairing parts ahead of field maintenance work,
greatly improve the work efficiency.
1.4 Nitrogen Charge and Leakage Check Valve
•
The
AHU indoor unit is standard with Nitrogen injection to maintain positive pressure of the indoor unit. It is easy
to
check from the check valve whether there is leakeage in the evaporator or not.
1.5 Automatic Airflow Adjustment
• During the operation, when the dust filter or evaporator is clogged with dust, the load of the system and motor
torque increases. The MPU(microprocessor) on the unit can detect this change and adjust the fan speed to keep the
CFM stable.
Summary of Contents for Comfort-Aire Century A-VMH18SV-1
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Page 37: ...Service Manual B VMHxxAV 1 Outdoor Unit 3 3 Panel Plate X430 Square grille ...
Page 38: ...Service Manual B VMHxxAV 1 Outdoor Unit 4 4 Panel Plate D30 Square grille ...
Page 39: ...Service Manual B VMHxxAV 1 Outdoor Unit 5 5 2 Service Place Minimim 4 Recommended 12 ...
Page 42: ...Service Manual B VMHxxAV 1 Outdoor Unit 8 8 A VMH18SV 1 A VMH24SV 1 ...
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Page 103: ...Service Manual B VMHxxAV 1 Troubleshooting 15 ...