CIAT Ereba He Series, Инструкция по эксплуатации

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EREBA He
EN-70
4 - OPERATION
- Three electric heat stages with two
customized discrete outputs: EH1 and EH2.
- Three electric heat stages with three
customized discrete outputs: EH1 and EH2
and EH3. This configuration cannot be
activated if DHW heater is present.
Each discrete output can control a contactor
(not supplied with unit).
Characteristics
Contactor Coil:
230 VAC
50Hz
Electrical
connection
Refer to § 3.4 Installation with electrical booster heaters
Configuration Refer to § 3.4 Installation with electrical booster heaters
4.2.12 - Boiler
To satisfy the heating demand during periods
very low ambient temperature, it is possible
to install a boiler. The boiler is considered as
a backup: when it is activated, the heat pump
cannot operate. Boiler is activated when OAT
is below Minimum OAT for Heating [P514] or
in case of heat pump failure.
Characteristics
Contactor Coil:
230 VAC
50Hz
4.2.13 - Coil heating control for
compressor
When the unit doesn’t operate, the
compressor can be energized. The
coil heating control has the function
of heating the compressor by
applying a current to the compressor
whennot operating instead of using
a case heater.
This control is for the purpose
of preventing stagnation of the
refrigerant inside the compressor.
4.2.14 - Defrost cycle (traditional defrost)
When the outdoor air temperature is low and
the ambient humidity is high, the probability
of frost forming on the surface of the outdoor
coil increases. The frost covering the outdoor
coil may reduce the air flow across the coil
and impair the performance of the unit. To
remove the frost from the coil, the control
initiates the defrost cycle when necessary.
During the defrost cycle, the refrigerant circuit
is forced into the cooling mode. To prevent
the water loop from cooling down, BPHE and
piping electric heaters may be started.
Please note that “defrost” and
“home anti-freeze protection” are
two different modes. Defrost is used
in order to remove the frost that is
covering the outside coil, whereas
the home anti-freeze protection is
used to maintain the minimum room
temperature.
4.2.15 - Energy Soft
Energy Soft defrost extracts energy from
outdoor air in order to melt frost on the coil
using fans while compressor is OFF.
Unlike traditional defrost, Energy Soft defrost
has almost no impact on the water loop
because the refrigerant circuit is not forced
in cooling mode.
4.2.16 - Night mode capacity control
The night period is defined by the start hour and the end hour which can be set by the user.
The night mode allows users to configure the unit to operate with specific parameters within
a given period of time, e.g. night period. Particularly this mode permits the reduction of
compressor frequency (and noise level) during defined period.
Steps Table Par. Designation Description Range Default Ex. Unit
Set the night mode CMP_CONF 541 Power Limitation value The compressor frequency is limited to this percentage of
the maximum allowed frequency.
50 to 100 75 50 %
518 Night Mode Start Time Hour of starting up of night mode 00:00 to 23:59 0:00 23:00 hh:mm
GEN_CONF 519 Night Mode Stop Time Hour of stop of night mode 00:00 to 23:59 0:00 7:00 hh:mm