Hydraulic Data; Production Of Domestic How Water Dhw - Hitecsa 117 Manual De Instalación, Uso Y Mantenimiento

II.6.4

HYDRAULIC DATA

Model
Safety valve calibration of channelled water.
Heat exchanger water content
Expansion tank capacity
Expansion tank pre-load
Expansion tank maximum pressure
Minimum flow rate (water differential pressure switch intervention)
Tank litres
The expansion tank on the machine has limited capacity to protect the hydraulic circuit inside the machine. It is the installer's duty to size and install an
expansion tank that is suitable for the system.
II.6.5

PRODUCTION OF DOMESTIC HOW WATER DHW

For the production of DHW by using the heat pump, use a technical water storage, which cannot be used directly for human consumption, and combine
it to a DHW producer.
The figure shows an example:condensata ad aria:
7
II.6.5.1 Management of the priorities and domestic hot water request
The priority between DHW and system can be set directly from the control panel.
How to manage the DHW request:
o by means of the digital input: the request is assigned by a thermostat assembled by the installer. When the thermostat closes, the unit understands
that there is a DHW request and, once the conditions have been verified, the procedure is activated to meet the DHW requirements;
o by means of temperature probe in the storage tank: a temperature probe is placed inside the storage tank, which is directly connected to the unit
board. The required set point can be configured from the panel together with the relative activation differential. In this case, the probe must be
accurately positioned and the maximum distance allowed respected due to the type of probes used.
Type of probe
description type of probe
NTC150 NTC OT150
NTC NTC
IOM_EQUI PF-EQUHI PF_117a128_207983_200101_ES-EN-FR-DE-IT
features þ (25/85)
50kK@25°C 3977 (±1%)
10kK@25°C 3435 (±1%)
barg
l
l
barg
barg
l/h 1450
l
KACTS
KMACSI
32
117 124 128
6 6 6
1,9 2,2 2,2
0,5 0,5 0,5
1 1 1
10 10 10
1450 1450
110 110 110
technical water storage
tank
instantaneous domestic
hot water producer
from heat pump
2 from the mains
3 drain
4 recirculation pump
5 DHW utility
6 from the mains
safety valve