English
3. Installation Process
3-1. Embedding the Tubing and Wiring
●Do not connect tubes to locations that are embedded.
●Be sure to bind refrigerant tubing and
●The power cable must be obtained
●Be sure to apply the provided labels to both ends of the
●Securely seal the end of embedded tubing with vinyl tape in order to prevent dirt or moisture entry.
●In order to prevent insulation breakdown and ground faults, do not allow the wire ends to contact rainwater, or be subject to dew condensation.
3-2. Drain Cap and Drain Elbow
First refer to Section 2. Installation Site Selection.
NOTE
The drain hole at the bottom of the outdoor unit was not plugged at the time of factory shipment. If necessary, plug the drain hole with the accessory drain cap or mount the accessory drain elbow before installing the outdoor unit. (Fig. 7)
Outdoor unit
CAUTION
When installing in a cold area where drainage water may freeze, do not attach the provided drain cap or drain elbow to the bottom plate of the unit.
Accessory | Accessory | Accessory |
drain cap | drain cap | |
| drain elbow |
|
Fig. 7
3-3. Use of the Flaring Method
Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units. In this method, the copper tubes are flared at each end and connected with flare nuts.
3-4. Flaring Procedure with a Flare Tool
(1)Cut the copper tube to the required length with a tube cutter. It is recommended to cut approx. 30 – 50 cm longer than the tubing length you estimate.
(2)Remove burrs at the end of the copper tube with a tube reamer or file. This process is important and should be done carefully to make a good flare.
(Fig. 8)
Deburring
Before |
| After |
|
|
|
Fig. 8
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