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UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
5)
Calculated from the storage capacity of the heat battery and assuming that the hot water cylinder thermostat is set at 60
o
C, mains cold water inlet
temperature is at 10
o
C and the stored energy utilisation factor of cylinder is 0.85.
6)
Calculated from the storage capacity of the heat battery and assuming that the hot water outlet temperature is set at 40
o
C, mains cold water inlet
temperature is at 10
o
C and the stored energy utilisation factor of cylinder is 0.95.
7)
To fully charge the heat battery, the source flow temperature should be set so that it does not start to cycle on its internal thermostat and it should
not be less than the value stated in table 4.2a. The battery will be fully charged when the battery return temperature is about 5
o
C less than the
heat source flow temperature.
8)
Maximum constant heat source flow temperature when charging the heat battery.
9)
Recommended setting for the hot water thermostatic blending valve
10)
Power supply to the heat battery/system controller via local 2-pole isolator
11)
Power supply for the standby electric heater vial local 2-pole isolator
–
Only for UniQ HW+I type of heat batteries
Table 2.3a: Pressure loss characteristic of UniQ size 3 batteries
–
All generic types
Flow rate
Low power circuit (LPC)
High power circuit (HPC)
HPC & LPC Circuits in parallel
[L/s]
[m
3
/h]
[bar]
[kPa]
[bar]
[kPa]
[bar]
[kPa]
0.10
0.360
0.049
4.920
0.016
1.572
0.006
0.640
0.20
0.720
0.197
19.680
0.063
6.289
0.026
2.560
0.30
1.080
0.443
44.280
0.142
14.151
0.058
5.760
0.40
1.440
0.787
78.721
0.252
25.157
0.102
10.240
0.50
1.800
1.230
123.001
0.393
39.308
0.160
16.000
0.60
2.160
1.771
177.121
0.566
56.603
0.230
23.040
0.70
2.520
2.411
241.082
0.770
77.043
0.314
31.360
0.80
2.880
3.149
314.882
1.006
100.628
0.410
40.960
0.90
3.240
3.985
398.523
1.274
127.357
0.518
51.840
1.00
3.600
4.920
492.003
1.572
157.231
0.640
64.000
Table 2.3b: Pressure loss characteristic of UniQ size 6 batteries
–
All generic types
Flow rate
Low power circuit (LPC)
High power circuit (HPC)
HPC & LPC Circuits in parallel
[L/s]
[m
3
/h]
[bar]
[kPa]
[bar]
[kPa]
[bar]
[kPa]
0.10
0.360
0.082
8.228
0.023
2.335
0.010
1.000
0.20
0.720
0.329
32.914
0.093
9.339
0.040
4.000
0.30
1.080
0.741
74.056
0.210
21.013
0.090
9.000
0.40
1.440
1.317
131.655
0.374
37.357
0.160
16.000
0.50
1.800
2.057
205.711
0.584
58.371
0.250
25.000
0.60
2.160
2.962
296.224
0.841
84.054
0.360
36.000
0.70
2.520
4.032
403.194
1.144
114.406
0.490
49.000
0.80
2.880
5.266
526.620
1.494
149.429
0.640
64.000
0.90
3.240
6.665
666.504
1.891
189.121
0.810
81.000
1.00
3.600
8.228
822.844
2.335
233.483
1.000
100.000