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Figure 10. Typical remote air cooled DX piping diagram
OPTIONAL COMPONENTS FOR FLOODED HEAD PRESSURE CONTROL
CHECK VALVE
HEAD PRESSURE
CONTROL VALVE
INTERCONNECTING
FIELD PIPING BY OTHERS
Refrigerant Piping
Refrigerant lines for the A/C unit are routed to either the top or
bottom of the cabinet as specified when the CyberRow system
is ordered (see
Figure 11, p.
The connections are made inside the cabinet. The pipe stubs
are labeled; i.e. Discharge, Liquid Line.
The refrigerant piping should be isolated by the use of vibration
isolating supports. Provide supports (clamps or hangers) as
necessary every 5 to 10 feet along piping runs to minimize
vibration and noise transmission. To reduce vibration
transmission and prevent pipe damage, when sealing
openings in walls use a soft flexible material to pack around the
piping. After the piping is installed, seal the gaps between the
pipes and the entrance holes in the cabinet so air will not leak
around the pipes.
All refrigeration piping should be installed with high
temperature brazed joints. Use standard refrigeration
practices for piping, leak testing, dehydration and charging of
the refrigeration circuits. For copper to copper brazing,
phosphorous alloy containing a minimum of 15% silver is
recommended. General purpose silver brazing alloy with 45%
silver is recommended for brazing dissimilar metals.
Wrap wet rags around the pipes between the areas to be
soldered and any nearby refrigeration components to keep
excessive heat from traveling through the pipe and causing
damage. Clear all pipe connections of debris and prep
connections for soldering. Use only L or K grade refrigerant
copper piping. Be careful not to allow solder/piping debris to
get inside refrigerant lines. Dry nitrogen should be flowing
through the tubing while soldering at a rate of not less than 1-
2 CFM (0.028-0.57 M 3/ minute).
AH-SVX015A-EN
PRESSURE
RELIEF VALVE
(OPTIONAL)
REFRIGERANT
FILTER/DRIER
RECEIVER
SCHRADER
VALVE
REMOTE AIR COOLED CONDENSER
16).
ELECTRONIC
THERMAL
EXPANSION
VALVE
SCHRADER
SIGHT
VALVE
GLASS
ASC
ELECTRONIC
HOT GAS
REGULATOR
CHECK VALVE
SCHRADER
VALVE
LOW PRESSURE
LIMIT SWITCH
HP
HIGH PRESSURE
LIMIT SWITCH
COMPRESSOR
Table 3. Pipe connection sizes
Model #
Liquid Line (in.)
CRS-042-W, -G
CRS-084-W, -G
DISTRIBUTOR
BODY
EVAPORATOR COIL
T
TEMPERATURE
SENSOR
LP
PT
PRESSURE
TRANSDUCER
Discharge Line
(in.)
5/8
5/8
5/8
5/8
Installation
Condensate
Drain (in.)
1/2
1/2
15
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