12
Technical data
Installation and operating instructions
68
Gas Combi Unit
Floor-standing gas condensing boiler with integrated heat storage
008.1543899_02 – 04/2019 – EN
12.1.2
GCU compact 5xx
Type (1)
(26)
GCU compact
Individual
Unit
515 / 515
Biv
520 / 520 Biv
524 / 524 Biv
528 / 528 Biv
Permitted ambient temperature
°C
1 - 40
Total storage capacity
litres
477
Net weight (11)
(26)
kg
102 / 104
104 / 106
Total filled weight
kg
579 / 581
581 / 583
Dimensions (W × D × H)
cm
79 × 79 × 189.5
Maximum permissible storage water temperature
°C
85
Standby heating power
kWh/24 h
1.7
Drinking water heat exchanger (stainless steel)
Water capacity heat exchanger
litres
23.8 / 25.8
Heat exchanger surface area
m
2
4.9 / 5.3
Max. operating pressure for potable water P
MW
(14)
(26)
bar
6
Storage tank charging heat exchanger (stainless steel)
Water capacity heat exchanger
litres
9.4
17.4
Heat exchanger surface area
m
2
1.9
3.5
Pressurised solar heat exchanger (stainless steel)
Water capacity heat exchanger
litres
— / 10.2
Heat exchanger surface area
m
2
— / 1.7
Pipe connections
Cold and hot water
inches
1" outer thread
Heating feed and return flow
inches
1" outer thread
Thermal performance data (sanitary)
Output characteristic figure N
L
in accordance with DIN 4708
(27)
2.1
2.2
D value (specific water flow) conforms to EN 13203
(28)
(15)
(26)
l/min
23
24
25
26
Continuous output Q
D
according to DIN 4708
kW
15
20
24
28
Max. draw-off rate for a period of 10 min at
(T
KW
= 10 °C / T
WW
= 40 °C / T
SP
= 60 °C)
litres
20
21
23
24
Hot water quantity without reheating with up to 15 l/min draw-off
rate
(T
KW
= 10 °C / T
WW
= 40 °C / T
SP
= 60 °C)
litres
230
Hot water quantity with reheating at nominal output and 15 l/min
at draw-off rate
(T
KW
= 10 °C / T
WW
= 40 °C / T
SP
= 60 °C)
litres
370
500
600
900
Short-term water quantity in 10 min
(29)
litres
200
215
230
235
Electrical system
Maximum electrical power consumption
(without/with heating circulation pump) (9)
(26)
W
36 / 76
38 / 98
44 / 104
48 / 108
Max. electric power consumption in "Standby" operating mode
W
3.1
Voltage supply (8)
(26)
~230 V, 50 Hz
Degree of protection (10)
(26)
IP X0B
Tab. 12-2
Technical data for GCU compact 5xx
(26)
Value in brackets corresponds to item number in
(27)
Reheating with nominal output, inflow temp. T
V
= 80 °C, starting storage tank temp. T
SP
= 65 °C, cold water temp.
T
KW
= 10 °C, hot water temp. T
WW
= 45 °C.
(28)
The spec. water flow acc. to EN 13203 is the domestic water flow at an average temperature increase of 30 K, which the
GCU compact can supply if two draw-off procedures each of 10 minutes duration are performed one after the other, assum-
ing a charging temp. of 65 °C. A delay of 20 minutes between the two draw-off procedures is usually assumed. The
GCU compact achieves this value with even shorter waiting periods.
(29)
Reheating with nominal output, starting storage tank temp. T
SP
= 60 °C, cold water temp. T
KW
= 10 °C, hot water temp.
T
WW
= 40 °C.
Содержание GCU compact Series
Страница 2: ......