DIRECT COIL REFRIGERANT COILS Installation And Operating Manual - Page 5

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DIRECT COIL REFRIGERANT COILS Installation And Operating Manual

All piping must be installed only by a licensed

plumbing contractor, and in compliance with local

codes. It is the responsibility of the engineer and/or

the piping contractor to ensure that the piping is

correctly sized in relation to the installation.

Operation and Maintenance

First Use

Air Distribution

1. Uniform air flow is crucial to coil performance and

should not vary significantly across the coil face

2. Air velocities should be maintained between 200 and

550 feet per minute without a mist eliminator and

between 200 and 700 feet per minute with a mist

eliminator

3. The drain pan should be designed and installed

such that there is no standing water

4. The maximum operating temperature is 350°F for any

Direct Coil coils

Filters

Filters upstream of the coil should be checked regularly

for dirt and clogging. If the filters are dirty, they should be

cleaned or replaced. It is important that the coils be clean

to maintain maximum heat transfer capability.

For more information on Direct Coil products call (613) 544 2200 | 5055 Taylor Kidd Blvd, Millhaven, Ontario K0H 1G0

Cleaning

1. Coils must be cleaned periodically to obtain maximum

performance. Soiled fins reduce the capacity of the

coil, and demand more energy from the fan

2. Periodic inspection of the coil for signs of damage,

leaks or corrosion is also recommended. Any repair

or replacement of parts should be performed by a

qualified professional.

3. Any fluid passing through the coil should be free of

any sort of contaminants. Periodic testing and

correction will enable the coil to last longer.

4. Fins can be cleaned using spray washers or using

commercial cleaners. Care must be taken not to

damage the coils and to not allow water to touch any

electrical equipment. However, caution should be

exercised when working with the fins as the sharp

edges can cause serious personal injury.

5. When the coil surface itself needs cleaning, ensure

an appropriate solution and equipment are selected

to avoid damage to the coil and/or enabling any health

hazards. Cleaning should be done inwards from the

airflow exit so any contaminant will later be pushed

out of the coil. Follow the manufacturer's instructions

with any cleaning solution or equipment