Cag purification LTE3 HGV, Installation, Operation, Maintenance And Parts Manual

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4.1 TECHNICAL FEATURES OF DRYERS SERIES LTE3, LTE 5 and LTE8
DRYER MODEL LTE3 LTE5 LTE8
Air flow rate at nominal condition 1 [scfm]
[Nl/min]
[Nm
3
/h]
10
285
17
15
425
26
25
708
42
Pressure DewPoint at nominal condition
1
[°F - °C]
38 – 3.3
Nominal ambient temperature [°F - °C] 100 - 37.8
Max. ambient temperature [°F - °C] 115 – 45
Min. ambient temperature [°F - °C] 34 – 1
Nominal inlet air temperature [°F - °C] 100 - 37.8
Max. inlet air temperature [°F - °C] 115 – 45
Nominal inlet air pressure [psig - barg] 100 - 6.9
Max. inlet air pressure [psig - barg] 232 – 16
Max. outlet air pressure drop -
∆
p [psi - bar]
4.4 - 0.3
Inlet-outlet air connection Copper pipe OD 3/8 in. (9.52 mm) 1/2” NPT-F
Refrigerant type R134.a (HFC) - CH
2
F-CF
3
Refrigerant charging [oz - g] 4.1/2 - 130 7 - 200 7 - 200
Cooling air capacity [scfm - Nm
3
/h] 120 - 200 200 - 340 200 - 340
Power supply [Phase/V/Hz] 1/115/60
Nominal electric consumption [W - A] 190 - 2.2 240 - 2.9 310 - 3.9
Max. electric consumption [A] 210 - 2.5 270 - 3.2 350 - 4.4
Compressor power [HP] 1/8 1/6 1/5
Weight [lbs - kg] 62 - 28 68 - 31 75 - 34
Max. noise level at 40in (1m) < 70 dbA
1
The nominal condition refers to an ambient temperature of 100°F with inlet air at 100 psig and 100°F.
5.1 OPERATION
The dryer described in this manual basically consists of two separated circuits: a compressed air circuit,
divided into two heat exchangers, and a refrigeration circuit.
The warm and humid entering air goes through an air-to-air exchanger before entering the evaporator (air-
to-refrigerant heat exchanger) where, due to the contact with the refrigeration circuit, it cools down to allow
the condensation of the humidity it contains. The condensed humidity is than separated and expelled into
the condensate separator.
The cooled air goes through the air-to-air heat exchanger, where it partially warms up in cooling down the
entering warm air (pre-refrigeration).
The refrigeration circuit needed for these operations is basically composed of a refrigeration compressor, a
condenser and an evaporator, also called air-to-refrigerant heat exchanger.