Specifications are subject to alteration without notice.
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11 MaintenanCe
Clean the inside of the unit whenever necessary.
Carry out a visual inspection at least twice a year.
11.1 Cleaning
• Stop the Cooler by shutting down the air handling unit or
by setting the cooling unit to ”0” in the cooling menu
image in the air handling unit terminal (i.e. alternate
the ON/OFF signal).
• Then shut off the safety isolating switch of the GOLD
Cooler.
• Open the inspection door.
• Vacuum clean the space and wipe with a damp cloth.
11.2 to change the water/glycol mixture
The need for filling or changing the liquid arises only if
leakage is detected, or if you fear that the water doesn’t
contain enough glycol.
To fill the circuit, follow the directions in Section 5.8.
The correct mixture is 30% ethylene glycol, 70% water.
Do not forget to vent the system!
11.3 Handling refrigerant
Type R 407C and R134A refrigerant is used in the Cooler.
The refrigerant circuit has been charged at the factory.
Caution!
Under no circumstances shall unauthorized personnel
be permitted to open the refrigerant circuit. The circuit
contains gas under high pressure. The refrigerant circuit
may only be modified or repaired by qualified personnel
from an accredited refrigeration company.
important!
If you detect any refrigerant leakage, get in touch with
your nearest Swegon Service representative.
11.4 Charging with refrigerant
Type R 407C and R134A refrigerant is used
If a low pressure alarm is initiated, this have been caused
by too low a volume of refrigerant.
Caution!
Always wear protective goggles and protective gloves
when working with refrigerant. Contact with skin and
eyes may cause frostbite.
Caution!
If the refrigerant is exposed to fire or is intensely heated
in some other way, toxic gases will form.
important!
Charging with refrigerant must be carried out according
to the refrigerant manufacturer’s recommendations.
Whenever possible, employ working methods that pre-
vent refrigerant contact directly with skin.
Arrange adequate ventilation/local extraction.
Wear tight-fitting protective goggles, protective gloves
and an overall.
if refrigerant comes in contact with eyes
Use an eye douche to flush the eyes (alternatively with
lukewarm water) for 0 minutes. Seek a doctor.
if refrigerant comes in contact with skin
Carefully wash with soap and lukewarm water.
if refrigerant causes frostbite
Seek a doctor.
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