DOC
NUMBER
595R495
34
SERVICE MANUAL Blast Chiller Freezer 100 - 200
Warning: The power cable must be installed from technician, following the normative present in the
local place. The connection will be done on clamp present under the condenser panel and in the electrical
box predisposed for this connection. Other information are present in the Installation manual (USA)
2.8.3 WATER CONNECTIONS (MODEL WITH WATER CONDENSATION BUILT IN)
•
maximum system pressure = 500 kPa (5 bar / 72.5 psi)
•
• minimum system pressure = 150 kPa (1.5 bar/ 21.7 psi)
•
• The cooling water temperature must be between 10
℃
(50
℉
) and 30
℃
(86
℉
).
The refrigerating units (in the appliances with incorporated refrigerating unit) have a water-cooled condensing
unit.
Therefore it is necessary to carry out the water connection, proceeding according to the instructions given be-
low:
•
This appliance is intended to be permanently connected to the water mains and not connected by a hose-set;
•
The supply water must come from the domestic water system, through a shutoff valve, with disposable water,
or to a water recirculation system connected to a cooling system that allows an adequate temperature (as
system description) to the water entering the condenser through the water pressure switch valve.
•
The setting water pressure switch valve must be done conforming the different type of refrigerant gas used
•
Manual Flushing:
1. To clear any sediment that might accumulate, valves may be manually flushed.
2. Insert screwdrivers under both sides of the valve spring guide and lift upwards to flush the valve.
See picture below.
Manual flushing does not affect valve adjustment
•
Adjustment
:
Valves may be adjusted with standard service valve wrenches
or screwdrivers. To raise the valve opening point, turn the ad-
justing screw, located at the top of range spring housing, coun-
terclockwise. Turn the adjusting screw clockwise to lower the
opening point. Exact settings can be made using a pressure
gauge in the refrigerant line to determine the throttling point.
Put the system under normal operating load and adjust to the
desired operating pressure. If the compressor operates in high
ambient temperatures, head pressures may remain high
enough during off cycles to prevent the valve from closing
completely. In such instances, the opening point of the valve
