Sullair SRL-2000 Service Manual

SRL Service Manual
Revision 00
July 2007
Page 13 of 56
3. System Design
The SRL dryer consists of two circuits: the Air Circuit and the Refrigeration Circuit:
• The Air Circuit: Consisting primarily of:
A. Air-to-Air heat Exchanger,
B. Air-to-Refrigerant Heat Exchanger,
C. Slowflow Demister Separator, and
D. Condensate Chamber
The air enters the dryer and passes through the Air-to-Air Heat Exchanger (A) where it is
cooled by the outgoing air. The air then passes through the Air-to-Refrigerant Heat Exchanger
(B) where it is further cooled by the refrigerant. The air then passes through the Slowflow
Demister Separator (C) where the condensate is separated from the air. The condensate
collects in the Condensate Chamber (D), before being discharged from the system by a
condensate drain (not shown). The air passes back through the Air-to-Air Heat Exchanger
where it is reheated by the incoming air before leaving the dryer.
• The Refrigeration Circuit: Consisting primarily of:
B. Air-to-Refrigerant Heat Exchanger,
E. Refrigerant Compressor,
F. Hot Gas Bypass
G. Condenser,
H. Refrigerant Filter, and
I. Expansion Device.
The refrigerant passes through the Air-to-Refrigerant Heat Exchanger (B) where it absorbs
heat from the air and evaporates into a gas. It then passes through the Refrigerant
Compressor (E) where it is compressed, and then through the Condenser (G) where it is
cooled by either the ambient air (air cooled models) or with cooling water (water cooled
models). This causes it to condense back into a liquid. It then passes through the Refrigerant
Filter (H) where any impurities are removed, and then the Expansion Device (I) where it is
expanded causing it to cool before returning to the Air-to-Refrigerant Heat Exchanger.
In some conditions, a portion of the refrigerant is directed clockwise through the Hot Gas
Bypass (F) and recirculated back to the compressor to avoid excessive cooling.
The refrigerant
cools the air.
The
Air
Circuit
The liquids condense
& are drained away.
The
Refrigerant
Circuit
B
A
C
D
E
F
G
H
I

Sullair SRL-2000 Specifications

General

Brand	Sullair
Model	SRL-2000
Category	Dehumidifier
Language	English