JOHNSON CONTROLS
15
FORM 155.33-ICOM2.EN.GB
ISSUE DATE:12/4/2017
2
The principle of refrigeration is the exchange of heat.
In absorption liquid chilling, there are four basic heat
exchange surfaces: the evaporator, the absorber, the
generator, and the condenser. (See
Like any refrigeration system, absorption chilling uses
evaporation and condensation to remove heat. The ab-
sorption cycle uses water as the refrigerant and lithium
bromide (LiBr) as the absorbent. It is the strong affin-
ity that these two substances have for one another that
makes the cycle work.
CHILLER-HEATER COMPONENTS
The absorption chiller-heater consists of the following
components:
• evaporator
• absorber
• condenser
• generators
• solution heat exchangers to heighten the cycle
efficiency
• pumps to circulate the refrigerant and solution in
the cycle
• a purge unit to remove non-condensable gas from
the machine
CONTROL PANEL
The absorption chiller-heater comes with a factory
mounted and pre-wired control system. The control
panel enclosure is equipped with a hinged access door
with lock and key. The control panel includes a touch
panel showing all system parameters in various lan-
guages with numeric data in metric units. For details
.
The unit is also equipped with two methods to start and
stop operations:
• touch panel
• external signal
SECTION 2 – PRODUCT DESCRIPTION
FIGURE 1 -
YHAU-CE-JE COMPONENTS
LD21542
LD22864
A
B
C
D
E
F
H
I
J
K
L
G
LABEL
CHILLER COMPONENTS
A
Control Panel
B
Chilled Water Outlet
C
Cooling Water Outlet
D
Waste Hot Water Exchanger
E
Waste Hot Water Generator
F
Waste Hot Water Outlet
G
Waste Hot Water Inlet
H
Blower
I
Exhaust Gas Outlet
J
High Temperature Generator
K
Exhaust Gas Inlet
L
Low Temperature Generator
