Operating Principle; Automatic Mode - Multi-Season; Select Mode - Multi-Season - Hitecsa EQP1X 117 Manual De Instalación, Uso Y Mantenimiento

I.4

OPERATING PRINCIPLE

○ The ecological polyvalent system was designed by
provide 2-pipe and 4-pipe systems with hot water from another heat
exchanger (recovery) year-round, as well as acting as a traditional
reversible-cycle water chiller.
○ The total heat recovery units also allow efficient energy
rationalisation.
○ The system can operate in two modes, which can be selected by
means of the electronic control. These are called
SELECT :
 In
AUTOMATIC mode, the system allows for full recovery of the heat
of condensation and/or the production of chilled water.
 In
SELECT mode, on the other hand, it allows for the production of
hot water by the secondary or main heat exchanger.
I.4.1 AUTOMATIC MODE - MULTI-SEASON
○ In this mode the system automatically manages the requests for hot
or chilled water, supplying chilled water to the main exchanger and hot
water to the secondary exchanger, even simultaneously.
○ Each request for hot or cold water is satisfied independently of every
other request.
○ When the secondary exchanger requires hot water, the flow of gas
delivered from the compressor is directed towards the recovery. If
chilled water is required at the same time, the unit operates as a water
chiller.
○ In
AUTOMATIC mode the unit therefore has three possible
automatic operating configurations:

AUTOMATIC 1 (A1) - operation as an air-cooled water chiller for the
production of chilled water;

AUTOMATIC 2 (A2) - operation as a water chiller with total heat
recovery for simultaneous production of hot and chilled water;

AUTOMATIC 3 (A3) - operation as a heat pump for the production
of hot water at the secondary exchanger (recovery).
R
C
E
Production of chilled water only at the main exchanger
( A1 ).
Production of chilled water at the main exchanger and hot
water at the secondary exchanger (
Production of hot water only at the secondary exchanger
( A3 ) (recovery).
S Air side condenser/evaporator.
C Compressor.
E Main exchanger (condenser/evaporator).
R Secondary exchanger (recovery).
V Lamination valve.
IOM_EQP1X_117a133_208094_200901_ES-EN-FR-DE-IT
HITECSA to
AUTOMATIC
and
S
V
A2 ) (recovery).
I.4.2 SELECT MODE - MULTI-SEASON
○ In this mode, the system provides hot water to the main exchanger
SELECT 1 (S1) or hot water to the secondary exchanger
(S2) on the basis of requests. If simultaneous requests are expected,
priority of operation must be established via the electronic control.
○ If the request for hot water from the selected heat exchanger is
completely satisfied, the hot gas can be completely switched over to the
other heat exchanger, provided this is requested.
○ The unit is programmed in the factory to provide hot water with
priority assigned to the secondary exchanger. You can however modify
this setting from the electronic control panel.
○ To summarise, operation in
automatic configurations:

SELECT 1 (S1) - operation as a heat pump for the production of hot
water at the main exchanger;

SELECT 2 (S2) - operation as a heat pump for the production of hot
water at the main exchanger.
R
C
E
Production of hot water at the
main exchanger (
Production of hot water at the
secondary exchanger (
S Air side condenser/evaporator.
C Compressor.
E Main exchanger (condenser/evaporator).
R Secondary exchanger (recovery).
V Lamination valve.
35
SECTION I: USER
SELECT 2
SELECT mode offers two possible
S
V
S1 ).
S2 ).