Hitecsa EWMIM Serie Manual De Instalación, Uso Y Mantenimiento página 73

Open circuit system and simultaneous presence of 3-way diverter valve VDEV and DS desuperheater (for example for domestic hot water)
M VE VS
VSM
ST6 (RC100)
ST5 (RC100)
ST7 (DS)
PU
C
VSTR
VSM
C
PU
PdC Reversible heat pump unit
RC100 Recovery unit
DS
Desuperheater
M Manometer
VS Safety valve
VE Expansion tank
VSTR Recovery heat drain valve
VMS
Manual air bleed valve
VSAM
Automatic/manual air bleed valve
AP1 Unit board
VR Check Valve
VM
3-way mixing valve
PU
Circulation pump
VDEV 3-way diverter valve
R Cock
N. B.: for the unit to operate properly, activation of the DC/RC100 recovery pump must be controlled by means of a specific discrete output provided in
the board on the unit.
RC100

Hot water temperature produced 40÷45°C;

The minimum inlet water temperature admitted is equal to 20°C
DS

Produced hot water temperature 40÷45°C with admitted water temperature differential 5÷10 K

The minimum inlet water temperature admitted is equal to 40°C
IOM_EWMIM-EWMIMH_120a262_207984_200601_ES-EN-FR-DE-IT
VSAM
ST/TRD
AAT
VM
AP1
M VE VS
VDEV
PU
R
SI
PUR
R
C
AU
IS DHW indication (tap, shower, sink)
AU Other utilities
I System
I
PUR Recirculation loop circulation pump
FC
Fan coil/utility
UT
For use
RI From the water mains
ST Temperature probe
YES Intermediate heat exchanger
AAT Technical water storage tank
C
Charge/drain water valve
ST
Temperature probe
TRD Recovery activation thermostat by the installer (KTRD - thermostat
with display supplied by HITECSA as an accessory)
FA Water filter
ST1
Main heat exchanger inlet temperature probe
ST2
Main heat exchanger outlet temperature probe
ST5 RC100 inlet temperature probe
ST6 RC100 outlet temperature probe
ST7 DS inlet temperature probe
75
OUT
VS
VE
FA
VR
IN
RI
ADVANCE
IS