Johnson Controls YORK SOLUTION LD09624, Инструкция по установке и запуску

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2-54
ForM 102.20-N1 (1109)
installation
FIG. 2-77 – TYPICAL PIPING AND SUNDRIES AT THE DX COIL
LD05171a
Mount thermal expansion valve bulb on side of
horizontal run of suction line as shown. Insulate
bulb / line after clamping bulb to line.
45°
1-7/8"
SPORLAN
ASC HOT GAS
FITTING
INSULATED HOT GAS LINE FROM CONDENSING UNIT
PITCH 1/2" PER 10' IN DIRECTION OF FLOW
SPORLAN
ASC HOT GAS
FITTING
SUCTION LINE
TXV Equalizer
Line
TXV Equalizer
Line
SIGHT GLASS
SIGHT GLASS
THERMAL
EXPANSION
VALVE
THERMAL
EXPANSION
VALVE
SUCTION LINE
LIQUID LINE FROM
CONDENSING UNIT
LIQUID LINE
SOLENOID VALVE
LIQUID
LINE DRIER
BALL VALVE
TO INSULATED SUCTION
LINE CONDENSING UNIT
PITCH 1/2" PER 10' IN
DIRECTION OF FLOW
MUST RISE TO THE TOP OF THE COIL
AND BE HIGH ENOUGH TO SLOPE TO
THE COMPRESSORS TO FACILITATE
OIL RETURN TO THE COMPRESSORS.
Construct suction line
P-trap from street fittings
to maintain minimum
trap volume.
CHECK
VALVES
Do not leave piping open to the atmosphere
unnecessarily. Water and water vapor are detrimental
to the refrigerant system. Until the piping is complete,
recap the system and charge with nitrogen at the end
of each workday. Clean all piping connections before
brazing joints.
The orientation of the refrigerant distributor is not
critical but the distributor tubes must not be kinked
or bent in a non-uniform configuration. For this and
other piping and sundry tips, refer to Fig. 2-77.
The orientation of the refrigerant distributor is not
critical but the distributor tubes must not be kinked
or bent in a non-uniform configuration. For this and
other piping and sundry tips, refer to Fig. 2-77.
Refrigeration
Direct Expansion Coils (DX)
DX coils are divided into splits depending upon the
unit size and coil circuiting. Each split requires its own
distributor nozzle, expansion valve and suction piping.
Suction headers are on the air entering side with suction
connection at bottom end of headers when the coil is
properly installed. Matching distributor connections
for each coil refrigeration circuit are on the air leaving
side.
See certified drawing and/or connection labeling
to ensure correct matching of suction and distributor
connections.
Direct-expansion coils are shipped
charged with nitrogen.