Sanyo SAP-CMRV1926EH, SAP-CMRV1426EH-F service manual Installation Process

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 inter-unit cables together with vinyl tape.

●The power cable must be obtained on-site. (ø3.5: Less than 26 m)

●Be sure to apply the provided labels to both ends of the inter-unit cables to prevent miswiring.

●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)

English

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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