12.2.4.2 - Installation and operation of the heat recovery with desuperheater option
Units with the desuperheater option are supplied with one plate heat exchanger per refrigerant circuit.
When installing the unit, the heat recovery plate heat exchangers must be insulated and protected against frost if required.
Refer to the main diagram below for the main components or functions associated with a unit with desuperheater option in a standard
system.
Typical installation diagram of LD units with desuperheater option
1
2
2
6
6
5
5
4
4
7
7
8
8
^
%
&
)
q
q
q
w
w
e
o
r
t
t
t
9
!
@
!
@
$
#
W
u
p
Q
E
y
R
3
3
LD unit with desuperheater option without hydraulic module
Typical installation
Border between LD unit and the system
28
Key
LD unit components
Installation components (installation example)
B
Evaporator
U
Pump (desuperheater loop hydraulic circuit)
C
Compressor
V
Shut-off valve
D
Desuperheater (plate heat exchanger)
W
Desuperheater water flow balancing and control valve
E
Air condenser (coils)
X
Damage limitation accessory in case of a fire (safety valve)
F
Expansion valve (EXV)
Y
Expansion tank
G
Damage limitation accessory in case of a fire (relief valve)
Z
Charging or drain valve
H
Electric heater to protect the desuperheater against frost (not supplied)
8
Air vent
I
Desuperheater insulation (not supplied)
9
Heat exchange coil or plate heat exchanger
J
Unit electrical cabinet
:
Pressure gauge
K
NA
;
Flow switch
L
Desuperheater water inlet
<
Pump (domestic hot water circuit)
M
Desuperheater water outlet
=
Three-way valve + controller
N
Evaporator water inlet
a
Filter to protect the pump and the desuperheaters
O
Evaporator water outlet
b
District water supply
P
Unit with desuperheater option without hydraulic module
c
Domestic hot water outlet
Q
System heat load
R
Border between the LD unit and the standard system
12 - OPTIONS
EN-59
AQUACIAT
POWER
™ LD/ILD
Содержание AQUACIAT POWER LD 1100R
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