Purging the YJ-LTE
1. Close all system valves.
2. Close valves on system hoses.
3. Connect the system vapor recovery hose or blue manifold hose to the PURGE port on
the YJ-LTE. This hose must have a valve depressor for opening the purge port
Schrader valve.
4. Turn the YJ-LTE valve to the PURGE position, open the recovery/blue hose valve, and
turn the unit on.
5. When the pressure gauge indicates the appropriate vacuum level, the purge process
is complete.
6. Close the valve on recovery
discharge hose and the recovery
tank. Shut off the YJ-LTE.
7. Disconnect the hoses from
the YJ-LTE.
Liquid
Service Port
Liquid (open)
Vapor (closed)
Vapor Service Port
Warranty Information
Ritchie Engineering guarantees YELLOW JACKET products to be free of defective
material and workmanship which could affect the life of the product when used for
the purpose for which it was designed. Warranty does not cover items that have been
altered, abused, or returned solely in need of eld service maintenance.
The YELLOW JACKET YJ-LTE recovery system (UPC 95730) is covered by a one year
warranty for parts and labor. The warranty also allows for over-the-counter exchange,
when applicable. To receive the over-the-counter exchange, call Ritchie Engineering
Customer Service and get the required authorization number.
Failure to get the required authorization number could result in a denial of the
over-the-counter exchange.
The following exceptions will not be covered under this warranty: recovery products
that have been altered, misused, or improperly maintained.
The following must be done before returning the unit:
1.
Call our technical service personnel to assess if the problem can be resolved over
the phone.
Obtain an RGA number from Ritchie Engineering for the return of the product.
2.
Fax a copy of the original invoice.
3.
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
YJ-LTE™ Refrigerant Recovery System
Quick Start
Guide
Important Safety Information:
This equipment may only be operated by trained and certied technicians that
1.
understand the equipment and process. If you do not understand this equipment
STOP! Do not operate until you understand process equipment and risks.
Servicing refrigeration equipment can be hazardous. Potential hazards include
2.
injury to eyesight, frostbite to hands and impairment, loss of consciousness or
cardiac sensitization due to refrigerant vapors. Wear proper protective equipment
such as gloves and eye protection and always work in a well ventilated area.
Hearing protection may be required in certain environments.
Over-lled recovery cylinders can explode causing severe injury and property
3.
damage. Always know how much refrigerant is in your cylinder and how much is
in the system to be serviced. Observe max ll requirements for cylinders.
Extension cords – Use only if required. To reduce the risk of re due to
4.
overheating, use the shortest possible extension cord with a minimum conductor
size of #16 AWG, 3 conductor with ground, maximum length 50’ from outlet.
Grounding and power cord damage – Only use equipment with a properly wired
5.
outlet of required ampacity. Any power cord damage requires replacement by
factory authorized technician.
6.
Explosion hazards. Never pressure test with mixture of air and any refrigerant.
Even nonammable refrigerants such as R-22 can become explosive under pressure
when mixed with air.
Do not recover ammable refrigerants such as R-290, R-600 or R1234yf.
7.
Do not operate equipment in any area that may contain ammable gasses, liquids
8.
or vapors. Always ensure proper ventilation.
IMPORTANT!!! Take time to read the safety instructions that came
with the device you are servicing as well as any material that came with
your refrigerant.
WARNING!!! USE ONLY D.O.T. RECOVERY CYLINDERS
APPROVED FOR R-410A. Overlling the tank may cause it to vent!
The YJ-LTE is used to pull liquid or vapor refrigerant out of the system and transfer it
into a recovery cylinder. Recovery is accomplished by connecting to the high and low
side service ports of the system being serviced with a manifold. Ensure you have the
capacity to recover all refrigerant in the system. In the USA the recovery cylinders can
only be lled to 80% capacity and in the EU it is only 60% capacity.
Direct Liquid or Vapor Recovery
Refer to the following instructions and the diagram below:
Know the type and quantity of refrigerant present before servicing any system.
1.
Turn off power to the system being serviced.
2.
Connect your manifold to the system
3.
being serviced. High side to liquid
port and low side to vapor port
as shown in diagram.
NOTE – For best performance,
4.
use minimum length and
maximum diameter hose(s)
Liquid
Service Port
between the YJ-LTE recovery
machine and the system.
The recovery hose at the system vapor
port connection must also have a depressor
for nal system purge. In addition, using a low loss hose for this connection will
minimize the amount of air drawn in during the purge process.
Connect the recovery hose from system
5.
or utility port of your manifold to the 1/4”
SUCTION port of the YJ-LTE.
Connect the hose from the recovery cylinder (liquid side) to the 1/4” DISCHARGE
6.
port of the YJ-LTE.
Purge all hoses of non-condensable gasses before recovering refrigerant into
7.
recovery cylinder.
Open the liquid valve on the recovery tank.
8.
Ensure valve is in recover position. Turn the YJ-LTE on.
9.
Open the utility valve and then slowly open the high side rst to recover as much
10.
liquid as possible, then open low side and on your manifold. If severe vibration,
knocking or lugging of the motor is noticed, it is recommended to partially close the
service manifold valves briey.
When the manifold pressure gauge indicates the appropriate vacuum level recovery
11.
is complete.
Perform PURGE procedure (see page 4).
12.
Liquid (open)
Vapor (closed)
Vapor Service Port
Push-Pull Recovery
The Push-Pull Liquid Recovery mode is used for transferring large volumes of liquid
refrigerant. The YJ-LTE “pulls" vapor from the recovery cylinder and produces high
pressure discharge gas that "pushes" liquid out of the HVAC system and into the recovery
cylinder. Some HVAC systems will not allow for the push-pull recovery method. If any
of the following conditions apply, do not use push-pull method, but follow the LiquidVapor Recovery instructions:
• System contains less than 10 pounds of refrigerant.
• System is a heat pump or other unit with a reversing valve.
• System has an accumulator between the service ports used in liquid recovery.
• The refrigerant system does not allow for the formation of a solid column of liquid.
For push-pull recovery, a sight glass is monitored during recovery. When liquid is no longer
visible, stop recovery and nish recovering using the Liquid-Vapor Recovery process. For
complete recovery, the system must be pulled into a vacuum as required by EPA standards.
The push-pull process requires the following:
1.
Proper hoses for all connections. Hoses with low loss ttings or valves are recommended.
2. A recovery cylinder with adequate capacity.
3. A sight glass (Note: Make sure sight glass is rated for the pressure of the
refrigerant being recovered).
Follow these steps:
1.
Turn off power to the system to be serviced.
2.
Hook up YJ-LTE, the system to be
recovered, and the recovery tank as
shown in the diagram to the right.
3.
Purge all hoses of non-condensables
before recovering refrigerant into
recovery cylinder.
4.
Open valves on the recovery tank.
5.
Turn the selector valve to PURGE position.
Note – This position allows the compressor
discharge to bypass the unit condenser.
This higher temperature feed gas will allow a faster liquid recovery.
6.
Turn YJ-LTE on. If starting with an evacuated recovery cylinder allow as much liquid
as possible to ow before starting recovery unit.
Note - Gauge will not reect system pressure.
7.
Monitor the sight glass. When the passing liquid is no longer visible through the sight
glass, the push-pull method of recovery is complete.
8.
Close the VAPOR valve on the recovery tank and let the recovery continue briey.
9.
Close SYSTEM VALVES and LIQUID valve on recovery tank.
10.
Reconnect the hoses per the diagram under “Direct Liquid or Vapor Recovery.”
11.
Rotate the selector valve to the RECOVER position, open required system and tank
valves and restart unit to recover vapor.
12.
Continue recovery until the unit reaches the appropriate level of vacuum.
13.
Perform PURGE procedure.
Vapor Service Port
Liquid Service Port
Liquid (open)
Vapor (open)
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
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