4-6. MAINTENANCE MESSAGE
4-6-1. Function
When a trouble which could disturb an efficient operation of the Chiller is predicted,
it shows a notice.
4-6-2. How it is shown
Data code is indicated on the data display as follows.
Maintenance message
Data code
Data name
★
H-01 Operate purge pump
★
H-03 Clean cooling water tubes
★
H-04 Check cooling water system
☆
H-06 Purge tank high pressure
☆
H-07 Cooling water tubes foul
☆
H-08
Cooling water high tem.
H-10 Power failure
★ mark : The Chiller needs an immediate action.
☆ mark : The Chiller does not need an immediate action.
However, as this might lead to ★
mark code, attention should be paid.
Consult a service agent at the next periodic maintenance.
NOTE : These indications disappear when the failure is corrected.
4-6-3. Descriptions of maintenance message and actions to be taken
Descriptions and actions by category
Maintenance Message
Display Action
1 Fouling of cooling
water tubes
Cooling water tubes must be cleaned.
Contact a service agent to do the job.
2 Vacuum rate
Purge indication lamp litghts at the same time
The purge tank must be purged immediately.
In case this indication is shown frequently,
contact a service agent.
3
High temperature
of cooling water
Check the cooling water pump, cooling tower, etc.
4 Power failure
See section 2-4.
4-9
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