LG RCWFH Series Instruction Manual page 108

108
• Merits of the Maintenance Contract System
(1) Economic Efficiency
- Deterioration of machine can be minimized by a regular maintenance action.
- As machine life id prolonged, the possibility of huge accident is reduced, which can save maintenance cost.
- As the contact is performed based on yearly predetermined cost, the effective management over the budget
of the maintenance cost can be possible.
In order to prevent an unexpected cost caused by a sudden breakdown a counseling service with the customer
is provided in advance.
- Opportunity loss of customer's production process resulted from the unexpected stop of machine can be elim-
inated.
(2) Safeness
- Through checking a lot of safety devices, safe use of the machine without trouble can be possible.
- As a regular inspection is applied before trouble, breakdown is prevented beforehand.
- In case of maintenance contract, as training is provided, operator's management skill over the machine is de-
veloped.
(3) Quickness
- As machine status can be always checked through a regular inspection, precise instruction can be given to
even a trouble notice by phone call.
- Maintenance Contract machines will get the premium service as the first creditor even during the rush season
when there are plenty of service loads.
Maintenance Contract Work Details (Standard)
1. Inspection before the start cooling
(1) Air-tightness Test
(2) Refrigerant charging
(3) Electricity related insulation test
(4) Safety device setting
2. Maintenance during the cooling period (1 time)
(1) Electricity related insulation test
(2) Checking the operation Setup
(3) Chiller operation setup
3. After finishing cooling season
(1) Refrigerant full extraction
(2) Nitrogen gas charging & sealing
(3) Filter checking(Replacing)
(4) Cleaning oil tank
(5) Checking the operation record
(6) Checking sensors (Replacing)
(7) Picking Oil
4. Water quality analysis (1 time)
(5) Function test between Starter panel ~ Control
panel
(6) Vacuuming
(7) Chiller operation setup
(8) Air tightness test
(9) Electricity-relate insulation test
(10) Function test between Starter panel ~ Control
panel
(11) Checking the oil pump
(12) Chiller operation setup