1 Features and technical data
16
For each mode, (1) o (2), specific control systems and devices are
provided (Paragraph 1.5 p. 13).
1�7 CONTROLS
Control device
The appliance may only work if it is connected to a control de-
vice, selected from:
▶
(1) DDC control
▶
(2) CCP/CCI control
▶
(3) external request
1�7�1 Adjustment system (1) with DDC (GAHP unit ON/OFF)
The DDC controller is able to manage appliances, a single GAHP
unit, or even several Robur GAHP/GA/AY units in cascade, only
in ON/OFF mode (non modulating). For more details refer to the
DDC, RB100, RB200 Manuals and the Design Manual.
DDC Controller
The main functions are:
▶
adjustment and control of one (or more) Robur units of the
absorption line (GAHP, GA, AY);
▶
parameter figures display and setting;
▶
hourly programming;
▶
climate curve control;
▶
diagnostics;
▶
reset errors;
▶
possibility to interface with a BMS;
DDC functionality may be widened with auxiliary Robur devices
RB100 and RB200 (e.g. service requests, DHW production, Third
Party generator control, probe control, system valves or circulat-
ing pumps, ...).
1�7�2 Adjustment system (2) with CCP/CCI (modulating
GAHP unit)
The CCP/CCI control is able to control up to 3 GAHP units in mod-
ulating mode (therefore A/WS/GS only, excluding AR/ACF/AY),
plus any integration ON/OFF boiler. For additional details and
diagrams refer to the CCP/CCI Manual and the Design Manual.
CCP/CCI Control
See CCP/CCI device Manual.
1�7�3 Adjustment system (3) with external request (GAHP
unit ON/OFF)
The appliance may also be controlled via generic enable de-
vices (e.g. thermostats, clocks, buttons, contactors...) fitted with
voltage-free NO contact. This system only provides elementary
control (on/off, with fixed set-point temperature), hence without
the important functions of systems (1) and (2). It is advisable to
limit its possible use only to simple applications and with a sin-
gle appliance.
For connection of the selected device to the appliance's
electronic board please refer to Paragraph 4.4 p. 27.
1�8 TECHNICAL CHARACTERISTICS
(see Table 1.1 p. 16).
Table 1�1 – GAHP-A HT technical data
GAHP-A HT STD
GAHP-A HT S1
HEATING MODE
Seasonal space heating energy ef-
ficiency class (ErP)
medium-temperature application (55 °C)
A+
low-temperature application (35 °C)
A+
OPERATING POINT A7W50
G.U.E. gas usage efficiency
%
152 (1)
Thermal power
kW
38,3 (1)
OPERATING POINT A7W35
G.U.E. gas usage efficiency
%
164 (1)
Thermal power
kW
41,3 (1)
OPERATING POINT A7W65
G.U.E. gas usage efficiency
%
124 (1)
Thermal power
kW
31,1 (1)
OPERATING POINT A-7W50
G.U.E. gas usage efficiency
%
127 (1)
Thermal power
kW
32,0 (1)
Heating capacity
Nominal (1013 mbar - 15°C)
kW
25,7
true peak
kW
25,2
Hot water delivery temperature
maximum for heating
°C
65
maximum for DHW
°C
70
Hot water inlet temperature
maximum heating
°C
55
maximum for DHW
°C
60
minimum temperature in continuous
operation
°C
30 (11)
Thermal differential
nominal
°C
10
Hot water flow rate
nominal
l/h
3000
maximum
l/h
4000
minimum
l/h
1400
Hot water pressure loss
nominal water pressure (A7W50)
bar
0,43 (2)
Ambient air temperature (dry bulb)
maximum
°C
40
minimum
°C
-15 (7)
ELECTRICAL SPECIFICATIONS
Power supply
Voltage
V
230
TYPE
SINGLE PHASE
Frequency
50 Hz supply
50
