Euroclima ZHK Series, Instruction Manual, Page: 15 / 131

Instruction Manual ZHK
14/129 V07-19.0
Prevention of hazards caused by suddenly falling out door panels while opening of remova-
ble panels
Removable door panels can fall out after detaching the connections and lead to in-
juries. Particular care should be taken when removing pressure sided doors be-
cause they can be firmly in place then suddenly detach. The user must be able to
carry the weight of the door. At doors with a surface of > 0.5 m² two persons are
necessary.
Please note the instructions on the AHU and subsequent instructions exactly.
2.2.2 Refrigeration circuit
Preventing the risk of exceeding the maximum operating pressures PS
Never exceed the maximum operating pressures PS, which are specified on the
type plate (even not for test purposes). Damage may limit the security and lifetime
of the system. Never operate the refrigeration system with a closed discharge line
valve.
Risk of burns on hot surfaces
On the compressor casing, pipelines and circuit components and on the oil sump
heater surface temperatures of far higher than 100 °C may occur, which may
cause serious injuries. Wear the required personal protective equipment (protec-
tive goggles, gloves, etc.).
Prevention of risks due to contact with refrigerant
Physical contact with refrigerant must be strictly avoided as it can cause severe
frostbite and damage the retina - temperature range, for example R407C
at ambi-
ent pressure
is approximately
–
44 °C
!
Prevent the risk of suffocation
Safety refrigerants are odorless, tasteless and can contaminate the air and cause
suffocation (MAK - value 1000 ppm).
-
In case of refrigerant leaks, immediately leave the affected room. Enter only with breathing pro-
tection and ensure adequate ventilation.
-
Refrigerant is heavier than air and will collect at the lowest room point. For small refrigerant
charges, this risk is significantly reduced.
-
Refrigerant and compressor oil react as soon as they come into touch with open flame toxic
substances. Do not inhale!
-
Do not smoke in the technical room!
-
For more information refer to
chapter 8.2.3 (Refrigerant)
.
2.2.3 ATEX AHUs
General safety indications
ATEX AHUs may not be used near:
-
High frequency sources (e.g. transmitter systems)
-
Strong light sources (e.g. laser beam systems)
-
Ionizing radiation sources (e.g. X-ray machine)
-
Ultrasound sources (e.g. ultrasound echo testing equipment)