Hitecsa ADVANCE EWMIM 120 Mode D'emploi page 69

The 2-pipe+DHW systems provide summer mode with the production of chilled water and/or simultaneous or separate production of hot water from the
heat recovery unit. In winter, however, the demand is for hot water production from the main heat exchanger and alternatively (assigning appropriate
priority) from the recovery exchanger.
The unit can work in two ways:
•
AUTOMATIC: the system implements full heat recovery of condensation and/or production of chilled water (summer).
•
SELECT: the system implements production of hot water in the recovery or main heat exchanger (winter).
Summer season "AUTOMATIC"
Domestic
Hot water
II.9.1.1.1 Competitive advantages
The heat pump unit with total recovery, defined as 2-pipe Polyvalent, fulfils the simultaneous or separate request for hot and cold water with one single
unit, thereby optimising energy consumption and simplifying management in the 2-pipe+DHW systems.
○
Its natural application is a valid alternative in all traditional systems that require the use of a chiller or heat pump together with a boiler being used
or integrated.
○
The advantages derive from a single unit being used, energy savings thanks to high COP (in heat recovery operation) and the absence of harmful
combustible products to the environment, thereby allowing the machine to be considered multi-purpose and ecological.
○
A versatile fourth generation multi-purpose heat pump which, unlike other polyvalent units, satisfies the typical demand of 2-pipe systems with a
single unit and in a totally flexible way.
○
It is therefore offered on the market as the unit that guarantees fundamental aspects such as EFFICIENCY, RELIABILITY AND VERSATILITY.
II.9.1.1.2 Activation and deactivation of DS and RC100
The units set up with DS desuperheater or total recovery RC100 can activate the thermal recovery by means of an external digital input (e.g. the KTRD
accessory).
On the other hand, it is possible to establish from the panel the criterion with which to cease heat recovery:
•
for digital contact: if the consensus is interrupted, the thermal recovery stops as well. This mode meets the requirement to carry out a temperature
control system of the tank connected to the recovery;
•
for maximum return temperature: this limit is set from the panel on the machine or from the remote keyboard (KTR accessory). The recovery
keeps operating until the return temperature is lower than the configured set point. This mode is suitable for maximising the use of the thermal recovery.
Position of the water connections DSlRC100
IOM_EWMIM-EWMIMH_120a262_207984_200601_ES-EN-FR-DE-IT
Air Conditioning
Cold water
Winter season "SELECT"
Domestic or Air Conditioning
Hot water
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ADVANCE