Honeywell 4022, Системное руководство

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Scanner Maintenance Liquid Cooling Systems
p/n 6510020208 10/18/07
9-53
become plugged. If this occurs, perform one of these
procedures:
•
To manually clean the exchanger unit, remove the bonnet
from the unit and clean the tubes with a nylon brush.
•
To chemically clean the exchanger unit, circulate a liquid
acid type of cleaner through the mill water supply side of
the unit. Make certain that the control valve is fully open by
pouring hot water into the expansion tank, or by manually
opening the valve by placing a blade screwdriver under the
spring cap on the valve and lifting up.
9.10.1.3. Maintaining the chiller (closed loop)
Procedures for maintaining a Honeywell chiller are supplied with the
chiller documentation. For maintenance procedures for a non-Honeywell
chiller, refer to the documentation provided by the chiller manufacturer.
To prolong the anti-rust, corrosion, scale, and heat transfer properties of
the coolant mixture, an additive 6530220027 EXTENDER, COOLANT HD
ANTIFREEZE is required after three years of operation. The additive is to
be added in a ratio of 45:1 with the capacity of the cooling system. The
cooling system must be flushed and filled after five years of operation.
9.10.1.4. Maintaining the PMP enclosure cooling
These tasks apply to the optional heat exchanger available for the 4022-31
remote PMP cabinet. These items need to be done to maintain the PMP
cooling system:
•
Check the heat exchanger for leaking coolant as per the
maintenance schedule suggested in Chapter 8. To prolong the anti-
rust, corrosion, scale, and heat transfer properties of the coolant
mixture, an additive 6530220027 EXTENDER, COOLANT HD
ANTIFREEZE is required after three years of operation. The
additive is to be added in a ratio of 45:1 with the capacity of the
cooling system. The cooling system must be flushed and filled after
five years of operation.
•
Check the airflow through the heat exchanger fans as per the
maintenance schedule suggested in Chapter 8.
•
Replace the solenoid valve on the heat exchanger every year.