Hitecsa EQPL-B 4360 Manual Del Operador página 74

System suggestion of the unit with accessory rc100/ds and dhw
production management
IMPORTANT!
The type of system described below could lead to
lime scale forming in the water/refrigerant heat
exchanger. We therefore recommend taking
suitable steps to limit this phenomenon. When
operating as a heat pump, it is advisable to drain
the recovery circuit.
You will have to pay particular attention to the working pressure of the
system, which in any case must not exceed the nominal values shown
in the individual components and must prevent the water in the recovery
unit from boiling.
M VE VS
VSM
AP1
KPR1 CR KTRD
KPR2
ST8
KPDS
C
PU/
DPU
VSTR
RC100 Recovery unit
DS
Desuperheater
M Manometer
VS Safety valve
VE
Expansion vessel
VSTR Recovery heat drain valve
VSM Manual air bleed valve
VSAM
Automatic/manual air bleed valve
AP1 Unit board
VR Check Valve
VM
3-way mixing valve
PU/DPU Circulation pump
Closed circuit system (for heating, for example)
ST6 (RC100)
VSM
ST5 (RC100)
ST7 (DS)
C
Open circuit system (for hot water, for example)
VSAM
PU
SI
AAT
VM
C
SECTION II :: INSTALLATION AND MAINTENANCE
Correct water circulation must also be ensured by means of mixing
units, through the recovery unit or the desuperheater, as well as the
minimum water input temperatures to the recovery unit as follows.
The minimum water input temperature to the RC100 recovery unit is
equal to 20°C.
The minimum water input temperature to the DS recovery unit is equal
to 40°C.
NOTE: for the units to work properly, the pump of the DS/RC100
recovery unit must be controlled from the special digital outputs
provided in the board on the unit (see wiring diagram):
KPR1: recovery unit 1 pump control
KPR2: recovery unit 2 pump control
KPDS: desuperheater pump control
M VE VS
VSAM
PU/DPU
VM
VSTR
OUT
R
VS
PUR VE
FA VR
R
AU
R Cock
PUR
Recirculation loop circulation pump
FC Fan coil/utility
ST Temperature probe
YES
Intermediate heat exchanger
AAT Technical water storage tank
C Water drain/charge cock
KTRD
Thermostat with display (accessory)
FA Water filter
ST5 RC100 inlet temperature probe
ST6
RC100 outlet temperature probe
ST7 DS inlet temperature probe
75
FC
KTRD
CR
AP1
KPR1
KPR2
KPDS
IS
IS DHW indication
IN
(tap, shower, sink)
AU Other utilities
I System
RI