Sanyo SAP-CRV93EH Tools Specifically for R410A, Tubing Installation Procedures, Tool Distinction

12-3. Tools Specifically for R410A

●For servicing, use the following tools for R410A

Tool Distinction	Tool Name
	● Gauge manifold
	● Charging hose
	● Gas leak detector
	● Refrigerant cylinder
	● Charging cylinder
	● Refrigerant recovery unit
Tools specifically for R410A	● Vacuum pump with anti-reverse flow (*1)
	(Solenoid valve-installed type, which prevents oil from flowing back into the
	unit when the power is off, is recommended.)
	● Vacuum pump (*2) … can be used if the following adapter is attached.
	● Vacuum pump adapter (reverse-flow prevention adapter) (*3).
	(Solenoid valve-installed adapter attached to a conventional vacuum pump.)
	● Electronic scale for charging refrigerant
	● Flare tool
	● Bender
Tools which can be com-	● Torque wrench
monly used for R22,	● Cutter, reamer
R407C, and R410A
	● Welding machine, nitrogen gas cylinder

CAUTION

●The above tools specifically for R410A must not be used for R22 and R407C. Doing so will cause malfunction of the unit.

●For the above vacuum pump (*1, *2) and vacuum pump adapter (*3), those for R22-type units can be used for R407C-type. However, they must be used exclu- sively for R410A and never alternately with R22 and R407C.

●To prevent other refrigerants (R22, R407C) from being mistakenly charged to this unit, sizes of the service ports and flare nuts of the narrow tube service valve and wide tube service valve have been altered.

12-4. Tubing Installation Procedures

When the tubes are connected, always apply HAB oil on the flare portions to improve the sealing of tubing.

The following is the HAB oil generally used:

	Esso: ZERICE S32
NOTE	For details on tubing installation procedures, refer to the installation manuals attached to the
	indoor unit and outdoor unit.

47