Darwin Chambers Company offers a thorough preventive maintenance package to help protect your investment and provide peace of mind. A listing of available services follows. Please note, not all services may be applicable to a specific chamber model or type. Desiccant Dryer Check-Out Verify no fault indications exist on front panel and that no lights are burned out Check the react outlet air temperature Verify proper operation of damper actuators Verify proper rotation of drive motor Verify process air blower is operational Inspect desiccant wheel for dirt or debris Inspect desiccant wheel gaskets for wear Clean the process air filter Check for abnormal noise or vibration Control Panel Check-Out Verify that there are no loose wires Measure voltage/amps for all motors Measure voltage/amps for all heaters Verify all alarms function properly Verify window heaters are operational Verify door heaters are operational Verify chamber ceiling lights and light switch are operational Humidifier Check-Out Verify there is not any mineral deposits Measure voltage/amps of each humidifier Remove any scale build-up inside the humidifier Check water supply pressure Check for any leaks or signs of corrosion Condensing Unit/Plenum Check-Out Check refrigerant charge Check compressor oil level Check system operating pressures Check CPR pressure setting Check capillary tubes do not rub Verify no oil traces are present Verify no leaks are present Clean the condenser coils if needed Measure compressor voltage/amps Measure crankcase heater voltage/amps Measure condenser fan voltage/amps Check for any abnormal noise or vibration Downloads Download Brochure