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9. CONSIDERATIONS ON THE EXCHANGERS CARE
In order to prevent damages to the exchangers that can make the warranty void, some preventive care must
be adopted:
•
Protection against water flow shortage. (Flow Switch)
•
Interlocking of the pump and safety systems to cause the machine to stop in case of any failure in the
water circulation system.
•
Water circulation before the compressor start-up.
•
Evacuation of the water circuit in winter, or in low temperature periods.
•
In locations where the temperatures decrease to below 0°C, use glycol to evacuate the system.
•
Periodic checking of the good operation of the safety system.
•
Installation of a "Y" filter, mesh 20, to protect them against obstructions.
•
Use of a condensation control in machines that operate in intermediate seasons.
•
Use of the proper rate of Glycol when operating at a leaving water temperature below 4.5°C.
•
Minimum water volume in the system: 12 l./ton. for air conditioning applications and 24 l/ton. for process
applications.
•
Installation of an accumulator tank in case it does not meet the minimum requirements of water volumes
(Refer to Carrier Air Conditioning Manual, Third Part).
•
The solutions must be prevented: Chlorines > 300mg/l, Chlorine-free sulphite, solutions with PH < 7.
•
The water circuit shall count on an expansion tank or a device to prevent the pressure surges in the
piping.
Do not remove any protective device from the unit.
10. START-UP REPORT
A) INFORMAÇÃOES PRELIMINARES
Customer: _____________________________________________________________________________
Installation Site: ________________________________________________________________________
Installer: ______________________________________________________________________________
Distributor: ____________________________________________________________________________
Start-up performed by:__________________________ Date: ____________________________________
Equipment: ____________________________________________________________________________
Liquid chiller model:____________________ Serial number: ____________________________________
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