Introduction
OPERATION MANUAL Chapter 1
CC® Liability for errors and misprints excluded. V1.3.0en/06.07.15//14.06
The manufacturer accepts NO liability for damage caused by technical modifications to the temper-
ature control unit, improper handling or use of the temperature control unit if the operation manu-
al is not observed.
1.3 Responsible bodies and operators – Obligations and
requirements
1.3.1 Obligations of the responsible body
The operation manual is to be stored where it is easy to access in close proximity to the temperature
control unit. Only adequately qualified operators (e.g. chemists, CTA, physicists etc.) are permitted
to work with the temperature control unit. Operators must be trained before handling the tempera-
ture control unit. Check that the operators have read and understood the operation manual. Define
precise responsibilities of the operators. Personal protective equipment must be provided to the
operators.
1.3.1.1 Temperature control unit with natural refrigerants (NR)
Over 8 g refrigerant per m³ room air
DEATH OR SERIOUS INJURY DUE TO EXPLOSION
Observe the rating plate (amount of natural refrigerant contained) and the room size (maxi-
mum room concentration of natural refrigerant in case of leakage) when installing the temper-
ature control unit.
For temperature control units with more than 150 g natural refrigerant: A gas warning sensor
must be fitted and functioning.
The gas warning sensor must be calibrated and maintained at regular intervals (between 6 and
12 months).
The temperature control unit is not approved for operation in an ATEX zone.
Huber products with natural refrigerants work with numerous proven, safe and highly-sustainable
technologies. The relevant standards and regulations for temperature control units with natural
refrigerants contain a number of stipulations, the importance of complying with which is set out
below. Also observe on page 15 the section »Proper operation«.
Huber temperature control units are constructed to be permanently sealed and are carefully
checked for leak tightness. Temperature control units with more than 150 g natural refrigerant are
equipped with an additional gas warning sensor.
The fill quantity of your temperature control unit is stated on the data sheet (from page 83 in sec-
tion »Annex«) or on the rating plate on the rear of the temperature control unit. Observe page 22,
section »Ambient conditions« and page 24, section »Installation conditions«.
Class of
application
field
Application field
Example of the installation
location
Max.
quantity of
refrigerant
AND
Max. permissible
quantity above
ground level (GL)
A General
Publicly accessible area in a
public building
8 g/m
3
ambient air
1.5 kg
B Monitored Laboratories 2.5 kg
C
Access only for
authorized
persons
Production equipment 10.0 kg
Temperature control units with more than 1 kg refrigerant must not be installed below ground level (GL).
Classifying the applica-
tion field
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