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9.1.4 Others
(1) Make sure that smell of gas is not detected around the chiller-heater.
(2) Make sure that no abnormal sound occurs after the gas burner is fired.
(3) Make sure that no abnormal conditions are found in the connection between the burner and the
gas line.
(4) Make sure that no abnormal sound occurs for the solution pump.
(5) Make sure that no abnormal sound occurs for the refrigerant pump.
(6) Make sure that no abnormal sound occurs for burner blower.
When some abnormal condition mentioned above is detected, stop the operation of the chiller-
heater right away and contact our service agent.
9.2 Periodical Inspection
The function degradation and deterioration of the parts and components depend on installation
condition, operating hour and so forth. However, it is inevitable. It is essential in order to maintain the
chiller-heater in normal and good condition to know the state of the chiller-heater correctly by
periodical inspection, to tune up the machine, and to replace deteriorated parts or components with
new ones if necessary. Table 9.2 shows general inspection items and its frequency.
9.3 Maintenance of Purge Pump
Generally, the purge pump runs without any trouble if it is maintained properly. Actually, however, the
oil in the pump may deteriorate and the parts of the pump may be damaged because of absorbing
some kinds of condensable gas, particulate contaminants, dusts, etc., and because of the high
temperature due to continuous operation under comparatively high pressure. Therefore, operate the
purge pump for 10 to 15 minutes once a week regardless of existence of non-condensable gas in the
unit.
Summary of Contents for HDFN-80-1400
Page 11: ...11 Fig 1 1 External View of Chiller heater...
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Page 20: ...20 Fig 3 5 Operation Flow Chart...
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Page 66: ...66 Fig 8 Lithium Bromide Temperature Specific Gravity Concentration Curve...
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