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13.6.1. Equipments to Be Used During Cleaning
The professionals working for the cleaning should be wearing the following costumes. This is required both
for the protection of the workers and the device to be cleaned.
A clean coverall
Protective goggles
Latex gloves (dirty gloves should immediately be replaced during cleaning and disinfection operations).
Antiseptic half mask - respiratory equipment
Protection worn on the shoes
Following the completion of the cleaning and disinfection operation, all the dressing items except for the
coverall should be disposed. The coverall can, however, be used again after being cleaned and disinfected
properly.
13.6.2. Disposal of Wastes to be Generated after Cleaning
During the cleaning of the devices, both solid wastes (Filter contaminated replaced, operator dressing items,
worn belts (if any), etc.) and liquid wastes (washing water and rinse water remnants) come into existence.
Solid wastes should be put into non-permeable boxes and disposed wit the wastes of a hospital. Different
from this, liquid wastes will be disposed through the waste water system of the air conditioner. This system
should previously be connected to the waste water system of the building.
13.6.3. Cleaning Method
As roof-type air conditioners contain electrical parts (electrical motor, micro processor, sensors, etc...), they
may be damaged in the event that they are exposed to high temperatures or water. The cooling system may
also be damaged under high pressures. Thus the following elements should not be used during the cleaning:
Hot steam jet,
Intensive water jet,
Water and disinfectant required for the disinfection operation should be used in an atomized way. Rinsing
should also be carried out this way. Liquid wastes should be sent to the drainage system afterwards.
Atomized water can be obtained through manually controlled atomizer equipment. For the cleaning and
washing process, water with 4% ammonium chloride added may be used. Another chemical equivalent to
ammonium chloride may be used instead.
We can examine the cleaning of roof-type air conditioners under three main sections.
Cleaning of Technical Parts:
This section involves the control equipment,, compressor and such equipment
items. There is no need for disinfection in this section. Besides, they should be cleaned once every six
months with other disinfection operations in accordance with the following procedure.
Cleaning of Operative Parts: This section details the parts responsible for conditioning the air. These
parts are in touch with both the air taken from the outside and contained inside the device and the air
turning from the environment (for the mixing air devices).
Filtering systems are located in the air suction part, while bacteria can find suitable places to settle and
reproduce themselves by time in the turning air and dispersion parts of the unit. This is possible over long-
term operation of the device. It may result in a risk in later operations of the device.
