Telemark Cryogenics User manual

READ THE MANUAL ! UNDERSTAND ALL SAFETY CONCERNS !
Cryogenics
WATER VAPOR CRYO-CHILLER
Part No 19-0001-00
Copyright © Telemark Cryogenics, 1998-2016 –All rights reserved
Rev 1.0.2 June 2016
www.telemark.com
Brand or products names are trademarks or registered trademarks
of their respective companies.
INSTRUCTION MANUAL

How to recharge your Cryochiller
Required items:
1) Refrigeration service “manifold”.
2) Charge recovery system.
3) Dry nitrogen gas. If a high pressure cylinder is used, a
pressure regulator will be needed
4) Cylinder of leak detectable gas
5) Halogen leak detector for refrigerants.
6) Leak check soap
7) Vacuum pump capable of 5 x 10-2 Torr or 50 microns.
Insure Technician is properly certified and follows your
countries local Laws when doing any refrigerant recovery.

Gas charge
recovery units
•There are many different models of
gas recovery units available on line
or at any HVAC parts center.
•This will be used to recover any gas
charge left in your unit if required
for service
•This will be used to pump in the
gas charge from your tanks or tanks
of gas charge to make sure your full
gas charge is filled into the
Cryochillers.
•

Refrigeration service manifold
•There are many different models of service manifolds
available on line or at any HVAC parts center.
•There is a low side (blue color)gauge and a high side
(red)gauge. The low side will be connected to the Suction
side of the compressor and the high side will be connected
to the discharge side of the compressor
•This will be used to add gas to units, for leak check
purposes or refilling gas charges to the cryochiller.

Refrigeration Vacuum pump
•There are many different
models of vacuum pumps
available on line or at any
HVAC parts center.
•With proper adaptors you
can use the vacuum pump
on your vacuum coating
system
•There are many portable
refrigeration vacuum
pumps available too

Understanding valves on the compressor
•The following terms will be used to describe the position of the 3 way compressor
service valve:
•
•Back Seated Position: Turn valve stem counter-clockwise until the valve stem is
fully extended. This closes off the service port ( the small port on the side of the
valve with the brass blank off nut).
•
•Mid Seated: From the backseat (per above) turn the valve stem three turns
clockwise. This allows refrigerant to flow to the service port. This is a common
position during servicing.
•
•Front Seated Position: Turn valve stem clockwise until fully shortened. This stops
any flow of refrigerant. THE COMPRESSOR SHOULD NOT BE RUN WITH THE VALVE
IN THIS POSITION.
•

Compressor valve
back seated
•Turn valve stem counter-clockwise
until the valve stem is fully
extended. This closes off the
service port ( the small port on the
side of the valve with the brass
blank off nut).

Compressor valve
Mid seated
•From the backseat (per above)
turn the valve stem three turns
clockwise. This allows refrigerant
to flow to the service port. This is
a common position during
servicing.

Compressor valve
front seated
•Turn valve stem clockwise until
fully shortened. This stops any
flow of refrigerant. THE
COMPRESSOR SHOULD NOT BE
RUN WITH THE VALVE IN THIS
POSITION.

Lets get started
•Step #1 Check the Cryochiller for Leaks.
•You must locate the source of leak before putting new a charge into the
Cryochiller
•
•Remove side panels to access compressor area.
•
•Leak check the full system before adjusting any valves or installing the
manifold. You don’t want to inveterately fix the leak by adjusting a valve
before you find the leak. Leak test the line and coil as well as the TVP.
Check the water side of the condenser by removing the water lines and
blowing out the water.
•