TEST OPERATION
1. Before test operation
(1) | Do not switch on power before installation |
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(2) | Electric wiring must be connected cor- |
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| rectly and securely. |
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(3) |
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| should be opened. |
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(4) | All the impurities such as scraps and |
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| thrums must be clear from the unit. | Handling Switch | |
(5) | Open the surface panel and set the hand- | ||
| ling switch to “RUN” mode. |
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2. Test operation method
(1)Switch on power and press “ON/OFF” button on the remote control.
(2)Press “MODE” button and check the operation condition of COOL, HEAT, SWING mode and so on.
(3)When the remote control is lost, emergency run operation can be done as following by the ball pen or similar things:
(a)At stopping, set the handling switch to “AUTO” mode, then the unit will automatically run in the mode selected by the microcomputer system according to the surrounded tem perature. If you want to stop running, you should repress the handling switch.
(b)At operation, set the handling switch to “STOP” mode to turn off the unit.
Check after installation
Items to be checked |
| Possible malfunction |
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Has the unit been fixed firmly? |
| The unit may drop, shake or emit noise |
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Have you done the refrigerant leakage test? |
| It may cause insufficient refrigerating capacity. |
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Is the pipe insulation sufficient? |
| It may cause condensation and dripping. |
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Does the unit drain well? |
| It may cause condensation and dripping. |
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Is the voltage in accordance with the rated |
| It may cause electric malfunction or dama- |
voltage marked on the nameplate? |
| ge the unit. |
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Is the electrical wiring and piping connec- |
| It may cause electric malfunction or dama- |
tion installed correctly and securely? |
| ge the unit. |
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Has the unit been connected to a secure |
| It may cause electrical malfunction. |
ground connection? |
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Is the electrical wire the appropriate gauge? |
| It may cause electric malfunction or dama- |
| ge the unit. | |
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Has the inlet and outlet been covered? |
| It may cause insufficient refrigerating |
| capacity. | |
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Has the length of connection pipes and the |
| Frost on the evaporator/condensor, lack of |
| capacity, general unit malfunction, possible | |
refrigerant quantity been verified? |
| damage to compressor. |
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