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Condensate pumps shipped loose (or field provided) typically require a dedicated 110-volt
power source. Field pipe connections must be made to the pump discharge connection. A
check valve must be installed to prevent short cycling. See condensate pump electrical
requirements in 3.12 Condensate Pumps (Optional).
Do not expose drain line to freezing temperatures. Drain line may contain boiling water
therefore use copper or other suitable material. Drain line must comply with local building
codes. It is recommended to install under-floor leak detection equipment whenever possible.
NOTE: Condensation formation and frequent humidifier flushing are normal
functions of this equipment. Proper drain connections must be made to
ensure proper removal. Unit will require water connections for condensate
removal and possibly for humidifier makeup water, condenser water, chilled
water and/or hot water. Installation of units above equipment that could
sustain water damage should be avoided.
WARNING: The condensate drain MUST be connected to an external
drain line (provided by others) before unit start up.
NOTE: Clogged or leaking drain lines can cause damage to the equipment
and building.
Drain lines must be inspected regularly and maintenance must be performed
to ensure that drain lines are clear and condensation runs freely through the
drain system. The lines must be clear and free of obstructions and in good
condition with no visible sign of damage or leaks.
This unit also requires an external water supply to the humidifier.
Improper installation, application and service may result in water leakage from
the unit. Water leakage can result in severe property damage and loss of
critical data center equipment.
Do not locate unit directly above any equipment that could sustain water
damage. It is recommended to install leak detection equipment for unit and
supply lines.
Humidifier Piping
Steam Generator Humidifier
The standard humidifier in the systems is a steam generator humidifier type with disposable
cylinder. The humidifier makeup water should be brought to the humidifier through the field
connection opening using 1/4” (6.4 mm) copper tubing. A compression fitting is provided at the
humidifier.
A shutoff valve (field provided) should be installed outside the air conditioner to allow
disconnection for service. An in-line water pressure regulator (field provided) and strainer (field
provided) should be installed. Water pressure should be set between 20 and 80 PSI (128 and
552 kPa).
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