Nissan Versa

 Sedan Service Manual

Ventilation, heater & air conditioner » Heater & air conditioning system (HA) » Precautions
Service Equipment

RECOVERY/RECYCLING RECHARGING EQUIPMENT

Be certain to follow the manufacturer's instructions for machine operation and machine maintenance. Do not introduce any refrigerant other than that specified into the machine.

ELECTRICAL LEAK DETECTOR

Be certain to follow the manufacturer's instructions for tester operation and tester maintenance.

MANIFOLD GAUGE SET

Be certain that the gauge face indicates HFC-134a or R-134a. Be sure the gauge set has 1/2″-16 ACME threaded connections for service hoses. Confirm the set has been used only with refrigerant HFC-134a (R-134a) and specified oils.

SERVICE HOSES

Be certain that the service hoses display the markings described (colored hose with black stripe). All hoses must have positive shutoff devices (either manual or automatic) near the end of the hoses opposite to the manifold gauge.

SERVICE COUPLERS

Do not attempt to connect HFC-134a (R-134a) service couplers to the CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers do not properly connect to the CFC-12 (R-12) system. If an improper connection is attempted, discharging and contamination may occur.                       

CHARGING CYLINDER

Using a charging cylinder is not recommended. Refrigerant may be vented into air from cylinder's top valve when filling the cylinder with refrigerant. Also, the accuracy of the cylinder is generally less than that of an electronic scale or of quality recycle/recharge equipment.

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

Precaution for Working with HFC-134a (R-134a)

Contaminated Refrigerant

Precaution for Leak Detection Dye

Precaution for Refrigerant Connection

Service Equipment