Auxiliary Thermal Source - Hitecsa EWMIG 236 Manuel D'installation, D'utilisation Et D'entretien

II.6.7

AUXILIARY THERMAL SOURCE

An auxiliary generator is a heat generator that runs alternatively to the heat pump; typically, it is a boiler. When the alternative generator is activated, the
heat pump and all its auxiliaries are off, even if powered. The auxiliary generator can be enabled only for heating the systems.
Operation of the auxiliary source
The auxiliary generator can be activated according to three modes:
o manually;
o
for an outdoor temperature set
o
for a convenience criterion based on the costs of electricity and fuel (methane and butane)
o
for heat Pump malfunction
4
5
5
II.6.7.1 Applications for partial (DS) and total (RC100) recovery and DHW production
Overview
Condensation heat in a chiller is usually disposed of in the air; it can be recovered intelligently by means of heat recovery, which may be partial
(DS) or total (RC100). With summer operation, a reduced value equivalent to the desuperheating of gas is recovered in the first phase, while the
second phase recovers all the condensation heat that would otherwise be lost.
In the case of a reversible heat pump, partial recovery (DS) and total recovery (RC100) can also run in winter mode. In the former case, the partial
recovery (DS) deducts a rate from the heat production in the main heat exchanger, whereas, in the latter case of total recovery, the heat production
is an alternative to that of the main heat exchanger.
Below is indicative information. The provided diagrams are not complete and are used only to provide guidelines that allow a better use of the unit.
2
point;
2
3
3
3
6
SECTION II: INSTALLATION AND MAINTENANCE
1
1
2
3
6
1
42
1 Compact-I
2 Inertial storage tank
3 Hydraulic circuit breaker
4 Boiler
5 Shut-off components not managed
Chiller or Heat pump
System user side storage tank
Pump
System recovery side storage tank