Specifications

DRI-STEEM CRUV Electric Humidifier Installation, Operation, and Maintenance Manual • Page iii
Warnings and cautions
WARNING
Disconnect electrical power
Disconnect electrical power before installing supply wiring or performing service or maintenance procedures on any
part of the humidification system. Failure to disconnect electrical power could result in fire, electrical shock, and other
hazardous conditions. These hazardous conditions could cause property damage, personal injury, or death.
Contact with energized circuits can cause property damage, severe personal injury, or death as a result of electrical
shock or fire. Do not remove humidifier electrical panel cover, heater terminal cover, or subpanel access panels until
electrical power is disconnected.
Follow the shutdown procedure in this manual before performing service or maintenance procedures on any part of
the system.
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Electric shock hazard
If the humidifier starts up responding to a call for humidity during maintenance, severe bodily injury or death from
electric shock could occur. To prevent such start-up, follow the procedure below before performing service or
maintenance procedures on this humidifier (after the tank has cooled down and drained):
• If the humidifier is equipped with a Vapor-logic
®
4 controller, use the keypad to change the control mode to Standby.
• Shut off all electrical power to humidifier using field-installed fused disconnect, and lock all power disconnect
switches in OFF position.
• Close field-installed manual water supply shut-off valve.
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CAUTION
Hot discharge water
Discharge water can be as hot as 212 °F (100 °C) and can damage the drain plumbing.
To prevent such damage from humidifiers without water tempering, allow the tank to cool before draining.
Humidifiers equipped with a water tempering device such as a DRI-STEEM Drane-kooler need fresh make-up water in order
to function properly. Make sure the water supply to the water tempering device remains open during draining.
Excessive supply water pressure
Supply water pressure greater than 80 psi (550 kPa) can cause the humidifier to overflow.
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