Mastercool R1234yf User Manual

OPERATING INSTRUCTIONS

MANIFOLD GAUGE SET

Usually indicates a low charge.

Usually indicates a blockage in the system.

(i.e. expansion of valve or orifi ce tube.)

When accompanied by a vibrating gauge needle, usually indicates faulty reed valves in

compressor.

Usually indicates an over charged system.

diagnosis.

manufacturer’s instructions for proper dispensing.

)

pump hose not included.

)

during the recharging process. Exceeding 42 psi could damage the compressor.

f. When charging is fi nished, close low side (blue) valve.

(12mm-M fi ttings on both sides meets SAE J2888, EPA, SAE & UL standards)

(12mm-M fi ttings on both sides meets SAE J2888, EPA, SAE & UL standards)

(Yellow hose 12mm fi tting on one side and 1/2 x 16 LH acme on the other meets SAE J2888)

(R1234yf couplers with extended disconnect protection sleeve meets SAE J639 & J2888)

(R1234yf couplers with extended disconnect protection sleeve meets SAE J639 & J2888)