Auto Air ConditioningGoetland Manifold Gauge Kit

User Manual(R-134a R12 R22 R502 R1235yf)

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Manifold Gauge Sets may be used to perform a number of jobs in respect to the Auto Air Conditioning System. Here is an explanation of service port status and connections required to do this successfully.

This would be helpful.

Notes:1. Always wear Protective Gloves and Safety Goggle when performing A/C

system work.2. Wash hands after performing.3. May not be used normally if violently falling, shaking, collide.4. Do not mistake the high pressure and the low pressure, which may

damage the air conditioning and manifold gauge5. It is illegal to vent R-134A R12 R22 R502 R1234yf Refrigerant into the

atmosphere.6. This product contains chemicals, including lead, known to the State of

California to cause cancer and birth defects or other reproductive harm.7. Some procedures should be performed by trained auto A/C professional.

Don’t try if you are not.8. Please let us know if you have any problems in 6 months. We will send

free replacement to you. (Please with your order ID.)

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Schematic Diagram: How Manifold Gauge Set Works

COMPRESSOR

CONDENSER EVAPORATOR

RECEIVER

Manifold Gauge Kit

High SideMiddle

SP

DP

Low Side

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Ambient Temp(F/C) Low Side Gauge High Side Gauge64.4 18 25-35 135-15569.8 21 35-40 145-16073.4 23 35-45 150-17078.8 26 40-50 175-21084.2 29 45-55 225-25089.6 32 45-55 250-27095 35 50-55 275-300

98.6 37 50-55 315-325104 40 50-55 330-335

109.4 43 50-55 340-345Optimum Pressure for Properly Functioning (PSI)

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Ambient Temperature refers to the outside air temperature surrounding the vehicle. The chart shows the desired range at each 5 degrees increment. If the pressure is out side is outside of the range, compare the table on the next page to solve the problem.

Pressure Readings Status

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Low Side Gauge High Side Gauge Action RequiredIn Range In Range Working Properly.

Low Low Add Refrigerant.

Low HighNeed service, possibly blockage of the expansion valve or orifice tube.

High Low Need service, possibly faulty compressor.

High High Overcharged. Slowly remove refrigerant.

Pressure Reading can only be taken when the compressor is cycled on. To determine this, look at center of compressor’s pulley. If rotating, it’s on. If it does not engage, add a can of R-134a R12 R22 R502 R1234yf. If compressor still does not cycle on, additional service may be required.

1. Hoses To Manifold(1) Low Pressure Side(LS):

Blue Hose to Blue Gauge Threaded Connector.(2) High Pressure Side(HS):

Red Hose to Red Gauge Threaded Connector.(3) Middle/Charging: Yellow Hose to Middle Threaded Connector.

2. Hoses To A/C System(1) Low Pressure Side: Blue Hose to Suction(Low Pressure) Service Port(SP).(2) High Pressure Side: Red Hose to Discharge(High Pressure) Service Port(DP).(3) Middle/Charging: Yellow Hose to Refrigerant Supply or other listed function.

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CONNECTIONS

1. Check Operating Pressures(1) Check and Keep Manifold

Low & High Pressure Valve Close*Do not check pressure with gas release adapter attached.(2) Open A/C system Suction(Low Pressure) & Discharge(High Pressure) Service Valve.

2. Charging Gas Through Suction(Low Pressure) Service Valve(1) Open Manifold Low Pressure Valve, then close Manifold High Pressure Side.(2) Connect Yellow Middle/Charging Hose to R-134a R12 R22 R502 R1234yf gas supply(cylinder or individual can–charge right-side up for gas).(3) Open A/C System Suction(Low Pressure) Service Valve, then close A/C System Discharge(High Pressure) Service Valve.

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CHARING GAS

CHARING LIQUID1. Check Operating Pressures

(1) Check and Keep ManifoldLow & High Pressure Valve Close

*Do not check pressure with gas release adapter attached.(2) Open A/C system Suction(Low Pressure) & Discharge(High Pressure) Service Valve.

2. Charging Liquid Through Discharge (High Pressure) Service Valve*should only be performed by a trained auto A/C professional. Do not try if you are not.**The safest way to charge is through the suction(low pressure) valve.(1) Close Manifold Low Pressure Valve, then open Manifold High Pressure Side.(2) Connect Yellow Middle/Charging Hose to R-134a R12 R22 R502 R1234yf liquid supply(cylinder or individual can–charge upside down for liquid).(3) Close A/C System Suction(Low Pressure) Service Valve, then open A/C System Discharge(High Pressure) Service Valve. © Goetland Team, 2019

1. Check Operating Pressures(1) Check and Keep Manifold

Low & High Pressure Valve Close*Do not check pressure with gas release adapter attached.(2) Open A/C system Suction(Low Pressure) & Discharge(High Pressure) Service Valve.

2. Charging Aerosol Lubricant(Oil) Through Suction(Low Pressure) ServiceValve

(1) Open Manifold Low Pressure Valve, then close Manifold High Pressure Side.

(2) Connect Yellow Middle/Charging Hose to aerosol lubricant(oil) supply.(3) Open A/C System Suction(Low Pressure) Service Valve, then close A/C System Discharge(High Pressure) Service Valve.

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CHARING OIL

1. Check Operating Pressures(1) Check and Keep Manifold

Low & High Pressure Valve Close*Do not check pressure with gas release adapter attached.(2) Open A/C system Suction(Low Pressure) & Discharge(High Pressure) Service Valve.

2. Recovering Refrigerant from Discharge Valve(1) Close Manifold Low Pressure Valve, then Open Manifold High

Pressure Side.(2) Connect Yellow Middle/Charging Hose to refrigerant recovery equipment.(3) Close A/C System Suction(Low Pressure) Service Valve, then open A/C System Discharge(High Pressure) Service Valve.

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RECPVERING

1. Check Operating Pressures(1) Check and Keep Manifold

Low & High Pressure Valve Close*Do not check pressure with gas release adapter attached.(2) Open A/C system Suction(Low Pressure) & Discharge(High Pressure) Service Valve.

2. Evacuation with Auxiliary Vacuum Pump(1) Open Manifold Low Pressure Valve, then Open Manifold High

Pressure Side.(2) Connect Yellow Middle/Charging Hose to vacuum pump.(3) Open A/C System Suction(Low Pressure) Service Valve, then open A/C System Discharge(High Pressure) Service Valve.

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EVACUATION

PRODUCTS

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R-134a R12 R22 R502R-134a Can Tap

Paper Box3 feet/5 feet

R-134a R22 R12 R502R-134a Can Tap

Better CouplersPlastic Box

5 feet

AccessoriesR-134a

Can Tap

AccessoriesR-134a

Quick CouplersR1234yf

Plastic Box5 feet

R410a R22 R134aR-134a & Can Tap

Larger Plastic BoxExtra Black Hose

5 feet

R-134a R404a R22 R12R-134a Can Tap

Larger Plastic Box5 feet

PRODUCTS

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Please let us know if you have any problems in 6 months. We will send free replacement to you. *Please with your order ID.

Goetland Manifold Gauge Kit