Operating manual - ChillPAC and LP ChillPAC Mk 3
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It is therefore
important
to keep brine and water under observation for both evaporator and condenser.
Consult a water treatment expert concerning additives to the system. The liability of Johnson Controls
Denmark does
not
include any damage that may occur due to harmful impurities in the system.
Be aware that all cooling towers and evaporative condensers experience a constant loss of water due to
evaporation. In order to keep the concentration of impurities low, a bleed system must be installed.
Note:
In order to obtain the correct mixture, it is recommended to premix secondary refrigerants (glycol
or brine) and to check it subsequently.
4.4.5
R717 detector
Installation of R717 detectors in the room and in the secondary circuit of an indirect system must be in
accordance with EN 378 and/or local codes and rules. Detectors in the secondary circuit in indirect sys-
tems are recommended regardless of the R717 charge limit according to EN 378.
The use of detectors in secondary circuits should be based on a risk assessment covering assessment
of:
•
risk of damaging secondary piping and components material (corrosion)
•
secondary refrigerant e.g. glycol in case of leakage
Leak detectors should be selected, installed and maintained in cooperation and accordance with the rec-
ommendations of the detector supplier.
