York YHAU-CE, Установка, эксплуатация и обслуживание, Страница: 15 / 136

JOHNSON CONTROLS
15
FORM 155.35-ICOM2.EN.CE/GB (1018)
DATE: 10/30/2018
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 Figure 1 below .
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
of the control panel, see SECTION 6 – OPERATION .
The unit is also equipped with two methods to start and
stop operations:
• touch panel
• external signal
SECTION 2 – PRODUCT DESCRIPTION
LDxxxxx
LD22974
A
B
C
C
D
E
LABEL CHILLER COMPONENTS
A
Absorber
B Low Temperature Generator
C Exhaust Gas Inlet
D High Temperature Generator
E Exhaust Gas Outlet
FIGURE 1 -
YHAU-CE COMPONENTS