Daikin Altherma 3 GEO EGSAH06D 9W Serie Guía De Referencia Del Instalador página 311

4 Capacity tables
4 - 4 Certification Programs
EGSAH-D9W / EGSAX-D9W / EGSAX-D9WG
Flow rate
Entering brine
Brine circuit temperature [°C]
[l/min]
9 20
9 25
9 20
9 25
9 20
9 25
Domestic hot water operation
Flow rate
Entering brine
Brine circuit
temperature [°C]
[l/min]
20
9
25
9
20
9
25
9
Safety Valve
The safety valve which is delivered with the unit opens at 3 bar. If design pressure is higher, then this should not be used. Maximum allowed design pressure on brine side is 4
bar. The safety valve selected must open at maximum 4 bar pressure.
Balancing Valve/ Regulating Valve
A balancing valve must be installled on the inlet or outlet brine pipe to limit maximum flow. Without such a valve, brine pump cannot operate correctly and operation of unit
cannot be guaranteed. The recommended value for maximum flow rate is 9 l/min.
Hydraulic Separator
A Hydraulic Separator must be installed to separate primary flow circuit (chiller) from secondary flow circuit (EGSA unit)
Expansion Vessel
The brine level vessel delivered with the unit is only meant for single application, not collecive application. An expansion vessel must be installed to avoid issues with pump
cavitation and to compensate for change in volume of medium as a result of temperature fluctuation.
Freeze Temperature Setting
If water is used as medium, field setting A-04 must be changed to value 0 to avoid break-down.
Check Valve
A check valve must be installed on brine outlet pipe.
Pipe Sizing
Pressure Drop Restirctions
When the units are installed in a parallel circuit, the maximum allowed pressure drop for the brine pump which is furthest away from the balancing bottle is 7 kPa. (illustrated
below)
This pressure drop is calculated at a flow 8 l/min less than the design flow of the common pipe.
For example, if number of units = N and design flow for each apartment = 9 l/min , then 7 kPa is maximum pressure drop at a flow of (9N-8) l/min
If pressure drop is higher, then stable operation cannot be guaranteed.
If the pipe sizing restrictions are not feasbible, it must be ensured that each
unit is hydraulically separated from the others.
This can be done by using a bypass manifold with each heat pump.
EGSA(H/X)-06
Heating capacity
Minimum
Leaving water Heating capacity
COP
temperature [°C] [kW]
35 1,50 9,48
35 2,01 16,19
45 1,31 5,05
45 1,49 6,51
55 1,88 2,87
55 1,60 3,17
EGSA(H/X)-06 , -10
Domestic hot
Heat-up time
water tank
(hh:mm:ss)
temperature
10 -> 55 01:16:56
10 -> 55 01:10:04
37 -> 55 00:43:58
37 -> 55 00:38:59
Installation Restrictions
Maximum
Flow rate
Entering brine
Brine circuit temperature [°C]
[l/min]
9 20
9 20
9 20
9 20
9 25
9 25
9 25
9 25
Capacity
Brine side
Maximum Average
[kW] [kW]
7,7 5,94
8,5 6,53
4,6 3,67
5,3 4,39
Daikin Altherma ground source heat pump
Leaving water
Heating capacity
temperature COP
[kW]
[°C]
25 10,62 7,57
35 10,52 5,91
45 10,28 4,68
55 9,23 3,99
25 11,79 8,71
35 11,62 6,57
45 11,38 5,16
55 9,23 4,54
3D130996
EGSAH-D9W / EGSAX-D9W / EGSAX-D9WG
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