Sunamo UniQ HW3 User manual

UNIQ HEAT BATTERIES
REFERENCE MANUAL_V2.3
Version: 2018_07_19_v2.3
Sunamp Ltd
Abstract
This is a quick reference guide for selecting the UniQ range of heat batteries for the required
application. For designing a heating system based on UniQ heat batteries use main manual

Page 1 of 24
UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
CONTENTS
1. Introduction ....................................................................................................................................................3
1.1. Advantages of UniQ Heat batteries..................................................................................................................... 4
1.1.1. UniQ HW, UniQ eHW, UniQ Dual and UniQ eDual range................................................................................ 4
1.1.2. UniQ Heat, UniQ eHeat, UniQ Dual and UniQ eDual range ............................................................................ 4
2. Technical Specifications ..................................................................................................................................5
3. UniQ_SBC_B Series Controller ........................................................................................................................8
3.1. Description .......................................................................................................................................................... 8
3.2. Controller setup .................................................................................................................................................. 9
3.2.1. Select options.................................................................................................................................................. 9
3.2.2. Select program................................................................................................................................................ 9
3.2.3. Indicators ...................................................................................................................................................... 10
3.3. Control logic ...................................................................................................................................................... 10
3.3.1. Program 1 (Electric storage water heater).................................................................................................... 10
3.3.2. Program 2 (Thermal store with electric heater) ........................................................................................... 10
3.3.3. Program 3 (Thermal store heated by external heat source)......................................................................... 10
4. Design of cold and hot water supplies..........................................................................................................11
4.1. General requirements ....................................................................................................................................... 11
4.2. Water distribution network design ................................................................................................................... 11
4.3. Hot water circuit expansion vessel sizing.......................................................................................................... 11
4.4. Hot water secondary circulation and trace heating.......................................................................................... 12
4.5. Hard water areas............................................................................................................................................... 12
5. Installation Guide lines .................................................................................................................................13
5.1. General wiring recommendations..................................................................................................................... 13
5.2. UniQ eHW batteries .......................................................................................................................................... 13
5.2.1. Mains cold water and hot water supplies..................................................................................................... 13
5.2.2. Electricity supply and wiring ......................................................................................................................... 14
5.3. UniQ HW, UniQ Heat & UniQ Dual batteries..................................................................................................... 14
5.3.1. Mains cold water and hot water supplies..................................................................................................... 14
Heat source and heating circuit connections ............................................................................................................. 14
5.3.2. Electricity supply ........................................................................................................................................... 15
5.4. UniQ eHeat & UniQ eDual batteries.................................................................................................................. 15
5.4.1. Mains cold water and hot water supplies..................................................................................................... 15
5.4.2. Heating circuit connections .......................................................................................................................... 16
5.4.3. Electricity supply ........................................................................................................................................... 16
5.5. UniQ HW+iPV Heat & UniQ Dual batteries........................................................................................................ 16
5.5.1. Mains cold water and hot water supplies..................................................................................................... 16
5.5.2. Electricity supply ........................................................................................................................................... 17
6. Electrical wiring.............................................................................................................................................18

Page 2 of 24
UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
6.1. Heat batteries fitted with electric element....................................................................................................... 18
6.2. UniQ HW, UniQ Heat and UniQ Dual batteries .....................................................Error! Bookmark not defined.
6.3. Heat batteries not fitted with an electric element............................................................................................ 22
Appendix 1............................................................................................................................................................24

Page 3 of 24
UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
1. Introduction
The Sunamp UniQ range of advanced and compact heat batteries (i.e. heat stores) use the Phase Change Materials (PCMs)
to store heat for producing hot water and for space heating in buildings. Sunamp heat batteries can be classified as
primary thermal because the hot water is heated instantaneously on demand by transferring heat from the PCM to the
mains water flowing through it, and they function like buffer vessels for space heating applications.
The pipe connections and the construction of a UniQ range
of batteries are shown in figures 1 and 2 respectively. The
phase change material (PCM) and the heat exchangers are
housed in a sealed enclosure called ‘The Cell’. Although the
Cell is sealed, the pressure inside the Cell is around the
ambient atmospheric pressure i.e. about 1.0bar absolute
and is fitted with an expansion relief valve. The Cell is
insulated using highly efficient vacuum insulation panels.
The outer case and hydraulic and electrical connections are
designed so that multiple batteries can either be stacked or
positioned side by side and then connected either in series
or parallel.
The UniQ range of heat batteries have two independent
hydraulic circuits and either or both can be used for charging
or discharging the heat batteries. The heat is transferred
between the PCM and the high power (HPC) and the low
power (LPC) hydronic circuits by means of an integrated
heat exchanger inside the Cell.
The heat batteries are fitted with temperature sensors for
measuring the charge state and for controlling their
operation when connected to the Sunamp battery
controller. All standard models of the UniQ range of heat
batteries are supplied with PCM58 which has a phase
transition temperature of 58oC.
The heat battery models covered by this document are listed in table 1.1. This document does not cover sizing, selection,
configuration or design of the heating and hot water system in a building. It only covers installation and commissioning
of the selected heat battery.
Table 1.1: UniQ Range of heat batteries
Generic range
Description
Models
UniQ HW
These heat batteries are heated by an external heat source (e.g. Gas boiler, Heat pump)
and are designed for hot water heating only in buildings. Therefore, these batteries are
direct replacement for vented and unvented Indirect hot water cylinders.
UniQ HW 3, UniQ HW 6, UniQ HW 9
And UniQ HW 12
UniQ HW+i
Same as the ‘UniQ HW’range but are fitted with a standby electric heater for heating the
hot water when the main heat source fails.
UniQ HW 3+i, UniQ HW 6+i,
UniQ HW 9+i & UniQ HW 12+i
UniQ HW+iPV
Same as the ‘UniQ HW+i’range but the AC power supply to the electric heater in the
battery can be supplied from a PV system via an external PV power diverter controller.
The rating of the PV system should not be greater than 2.5kWp.
UniQ HW 3+iPV, UniQ HW 6+iPV,
UniQ HW 9+iPV & UniQ HW 12+iPV
UniQ eHW
These heat batteries are heated by internal electric heating elements only and therefore
these heat batteries are equivalent to Direct vented or unvented hot water cylinders
UniQ eHW 3, UniQ eHW 6,
UniQ eHW 9 & UniQ eHW 12
UniQ Dual
These heat batteries are designed to be heated by an external heat source (e.g. Gas boiler,
Heat pump) and are suitable for storing heat for both space and hot water heating in the
buildings. Therefore, these are direct replacement for integrated thermal stores.
UniQ Dual 3, UniQ Dual 6,
UniQ Dual 9, UniQ Dual 12
UniQ eDual
These heat batteries are heated by integrated electric heaters and are designed for
storing heat for both space and hot water heating only in buildings. Therefore, these are
direct replacement for integrated electric thermal stores i.e. CPSU.
UniQ eDual 3, UniQ eDual 6,
UniQ eDual 9, UniQ eDual 12
A
B
C
D
D C B A
E
Figure 1: UniQ heat battery pipe connections –All models
E
A
D
B
C
F
G
Figure 2: UniQ Heat battery construction
A –D: High power hydronic circuit (22mm)
B –C: Low power hydroniccircuit (22mm)
E: Electric heater –‘e’ Series battteriesonly
F: Heater cable to controller – ‘e’ Series batteries only
G: Temperature sensors –All models

Page 4 of 24
UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
1.1. Advantages of UniQ Heat batteries
1.1.1. UniQ HW, UniQ eHW, UniQ Dual and UniQ eDual range
The main benefits of the UniQ HW, UniQ eHW, UniQ Dual and UniQ eDual heat batteries, compared with the traditional
hot water cylinders and hot water only thermal stores are:
a) The heat is stored in the Phase Change Material and therefore the stored water content in the battery is less
than 15 Litres and the hot water is heated instantaneously on demand. Therefore:
▪It does not need to comply with the Building Regulations, Part G3 requirements i.e. pressure & temperature
relief (P&T) valve and the associated discharge pipework are not required.
▪The risks of legionella are significantly reduced.
b) Quicker and less costly installation.
c) No mandatory annual maintenance or inspection is required and therefore lower running costs.
d) Operational needs: Smaller space, typically 2 –3 times smaller than the equivalent hot water cylinders and clean
installation.
1.1.2. UniQ Heat, UniQ eHeat, UniQ Dual and UniQ eDual range
The main benefits of the UniQ Heat batteries (i.e. heat stores) compared with the hot water based thermal stores are:
a) The UniQ Heat batteries have low water content because over 90% of the heat is stored in the PCM and
therefore, adding the UniQ Heat batteries to the heating system does not significantly increase the water
content of the heating system. Therefore, in most installations, there is no need to increase either the size of
expansion vessel or the required volume of water treatment chemicals.
b) Quicker and less costly installation because these heat batteries are supplied fully insulated and with a plug-in
controller.
c) No mandatory annual maintenance or inspection is required and therefore lower running costs.
d) Operational needs e.g. smaller space, typically 2 –3 times smaller than the equivalent hot water based thermal
stores and clean installation.

Page 5 of 24
UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
2. Technical Specifications
The standard models of the Sunamp heat batteries are supplied with PCM58 and these heat batteries can be used with
any heat source which can run at flow temperature greater than 65oC. The discharge temperature from these standard
heat battery models will be between 52 and 55oC.
The overall dimensions and weights of the heat battery models in the UniQ range are listed in table 2.1 and their technical
specification is listed in table 2.2. The pressure loss characteristics of the heat batteries are tabulated in tables 2.3a, 2.3b,
2.3d, 2.3e. The standard and optional equipment supplied with the heat batteries is listed in table 2.4.
Table 2.1. Overall dimensions and weights of UniQ heat battery range
Overall dimensions [mm]
Weight[1]
Width
Depth
Height
[kg]
UniQ HW 3, UniQ Heat 3, UniQ Dual 3
365
575
410
55
UniQ HW 6, UniQ Heat 6, UniQ Dual 6
365
575
605
105
UniQ HW 9, UniQ Heat 9, UniQ Dual 9
365
575
815
155
UniQ HW 12, UniQ Heat 12, UniQ Dual 12
365
575
1,025
205
UniQ HW 3+i, UniQ HW 3+iPV, UniQ eHW 3, UniQ dPV 3
365
575
455
61
UniQ HW 6+i, UniQ HW 6+iPV, UniQ eHW 6, UniQ eDual 6
365
575
650
111
UniQ HW 9+i, UniQ HW 9+iPV, UniQ eHW 9, UniQ eDual 9
365
575
860
161
UniQ HW 12+i, UniQ HW 12+iPV, UniQ eHW 12
365
575
1,070
211
[1] The PCM in standard heat batteries has a phase transition temperature of 58oC
Table 2.2: Technical specification of UniQ heat battery range
Size 3
Size 6
Size 9
Size 12
Storage capacity –Standard batteries with PCM58 [1]
[kWh]
3.5
7.0
10.5
14.0
Water content –Low power circuit (LPC) [3]
Water content –High power circuit (HPC) [4]
[L]
[L]
1.30
2.24
2.36
4.48
3.46
6.76
4.56
9.04
Equivalent hot water cylinder size [5]
[L]
71
142
212
284
V40, Volume of hot water available at 40oC [6]
[L]
85
185
300
370
•Heat loss rate
•Heat loss rate
•ErP Rating class –Hot water storage vessel
[kWh/24h]
[W]
[ - ]
0.449
18.7
A+
0.649
27.0
A+
0.738
30.7
A+
0.809
33.7
A+
Recommended maximum HW flow rate
[L/min]
6
15
20
25
Minimum cold water supply pressure at inlet to the heat battery
[bar]
[MPa]
1.00
0.10
1.50
0.15
1.50
0.15
1.50
0.15
Maximum working pressure:
High power (HPC) and Low power (LPC) circuits
[bar]
[MPa]
10.0
1.0
10.0
1.0
10.0
1.0
10.0
1.0
Pressure loss characteristics (See tables 2.3)
▪KVValue for the Low power circuit (LPC)
▪KVValue for the High power circuit (HPC)
[ - ]
[ - ]
1.623
2.871
1.255
2.356
1.066
1.951
0.963
1.451
Minimum heat source flow temperature [7]
[oC]
65
65
65
65
Maximum heat source flow temperature [8]
[oC]
85
85
85
85
Hot water outlet temperature at design flow rate [9]
[oC]
50 - 55
50 - 55
50 - 55
50 - 55
Heat battery controller
•CC power supply rating at 230V, AC, 50Hz [10]
•Electric heater supply rating at 230V, AC, 50Hz [11]
•Standby power consumption –All models
•Power rating of the heater at 230V, AC, 50Hz (‘e’ models only)
[A]
[A]
[W]
[W]
6
16
7
2,800
6
16
7
2,800
6
16
7
2,800
6
32
7
2,800
Notes –Table 2.2
1) Batteries operating as hot water heaters. Charged to 75oC and then discharged using mains cold water at 10oC until the hot water outlet
temperature dropped to 40oC.
2) Batteries operating as hot water heaters. Charged to 55oC and then discharged using mains cold water at 10oC until the hot water outlet
temperature dropped to 40oC.
3) For UniQ HW and UniQ HW+I heat batteries, the low power circuit (LPC) is connected to external heat source e.g. a boiler.
4) For UniQ HW and UniQ HW+I heat batteries, the high power circuit (HPC) is connected to the mains cold water supply for producing hot water.

Page 6 of 24
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 60oC, mains cold water inlet
temperature is at 10oC 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 40oC, mains cold water inlet
temperature is at 10oC 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 5oC 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]
[m3/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]
[m3/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

Page 7 of 24
UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
Table 2.3c: Pressure loss characteristic of UniQ size 9 batteries –All generic types
Low power circuit (LPC)
High power circuit (HPC)
HPC & LPC Circuits in parallel
[L/s]
[m3/h]
[bar]
[kPa]
[bar]
[kPa]
[bar]
[kPa]
0.10
0.360
0.114
11.405
0.034
3.405
0.014
1.424
0.20
0.720
0.456
45.620
0.136
13.619
0.057
5.695
0.30
1.080
1.026
102.644
0.306
30.643
0.128
12.814
0.40
1.440
1.825
182.478
0.545
54.477
0.228
22.781
0.50
1.800
2.851
285.122
0.851
85.120
0.356
35.595
0.60
2.160
4.106
410.576
1.226
122.572
0.513
51.257
0.70
2.520
5.588
558.839
1.668
166.835
0.698
69.767
0.80
2.880
7.299
729.912
2.179
217.907
0.911
91.124
0.90
3.240
9.238
923.795
2.758
275.788
1.153
115.329
1.00
3.600
11.405
1,140.488
3.405
340.479
1.424
142.382
Table 2.3d: Pressure loss characteristic of UniQ Heat 12, UniQ HW 12, UniQ eHW 12, UniQ Dual 12 and UniQ eDual 12
Flow rate
Low power circuit (LPC)
High power circuit (HPC)
HPC & LPC Circuits in parallel
[L/s]
[m3/h]
[bar]
[kPa]
[bar]
[kPa]
[bar]
[kPa]
0.10
0.360
0.140
13.975
0.062
6.156
0.022
2.224
0.20
0.720
0.559
55.900
0.246
24.622
0.089
8.896
0.30
1.080
1.258
125.775
0.554
55.400
0.200
20.016
0.40
1.440
2.236
223.600
0.985
98.490
0.356
35.584
0.50
1.800
3.494
349.375
1.539
153.890
0.556
55.599
0.60
2.160
5.031
503.101
2.216
221.601
0.801
80.063
0.70
2.520
6.848
684.776
3.016
301.624
1.090
108.975
0.80
2.880
8.944
894.401
3.940
393.958
1.423
142.335
0.90
3.240
11.320
1,131.977
4.986
498.603
1.801
180.142
1.00
3.600
13.975
1,397.502
6.156
615.560
2.224
222.398
Table 2.4: Standard and optional equipment
UniQ HW 3, UniQ HW 6, UniQ HW 9, UniQ HW 12
UniQ Heat 3, UniQ Heat 6, UniQ Heat 9, UniQ Heat 12
UniQ Dual 3, UniQ Dual 6, UniQ Dual 9, UniQ Dual 12
UniQ eHW 3, UniQ eHW 6, UniQ eHW 9, UniQ eHW 12
UniQ HW 3+i, UniQ HW 6+i, UniQ HW 9+i, UniQ HW 12+i
UniQ HW 3+iPV, UniQ HW 6+iPV, UniQ HW 9+iPV, UniQ HW
12+iPV
Standard
equipment
a) Battery controller UniQ_SBC_03
b) Installation & commissioning manual
c) Battery installation kit SA_BI_K01
a) Battery controller UniQ_SBC_01 or UniQ_SBC_02
b) Installation & commissioning manual
c) Battery installation kit SA_BI_K01
Optional
equipment
a) Hot water thermostatic blending valve
a) Hot water thermostatic blending valve

Page 8 of 24
UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
3. UniQ_SBC_B Series Controller
3.1. Description
The UniQ_SBC_B series controller is housed in a separate
box and is supplied with each heat battery. The controller
parameters can be changed on-site.
The variants of the control boxes available to match the
different heat battery types as described below in table
3.1. All control boxes have the same outer case, although
the number of wire entries and the internal wiring differ.
The controller inputs and outputs are listed in table 3.2.
The default heat battery control set points are listed in
table 3.3.
Warning:
live parts are accessible on the PCB and terminal strips.
Connections and setup should be carried out by
approved installer or competent personnel only.
Table 3.1: Heat battery controller selection
Controller type
Heat battery
type
Control logic i.e.
Program No (See
section 3.2.2)
Wiring diagram
Comments
UniQ_SBC_B100
UniQ eHW
UniQ eHeat
UniQ eDual
Program No: 1
Figure 6.1
The controller UniQ SBC_B100 with logic program 1 selected is
designed to control the operation of heat batteries heated by
grid electricity only.
UniQ_SBC_B100
UniQ HW+i
UniQ Dual+i
Program No: 2
Option 2: Off
Figure 6.2
The controller UniQ SBC_B100 with logic program 2 selected and
with option 2 set to OFF is designed to control the operation of
heat batteries which are mainly heated by external heat source
e.g. boiler and have back up electric heater fitted which is
connected to grid electricity only.
UniQ_SBC_B100
UniQ HW+iPV
UniQ Dual+iPV
Program No: 2
Option 2: On
Figure 6.3
The controller UniQ SBC_B100 with logic program 2 selected and
with option 2 set to ON is designed to control the operation of
heat batteries which are mainly heated by external heat source
e.g. boiler and the electric heater fitted which is connected to PV
system via diverter controller.
UniQ_SBC_B200
UniQ HW
UniQ Heat
UniQ Dual
Program No: 3
Figure 6.4
The controller will only control an external heat source and
should only be used with heat batteries which are NOT fitted with
electric heating element
UniQ_SBC_B300
UniQ HW+LTHP
Program No:
Figure
The controller will control an external low temperature heat
pump and an auxiliary heater to achieve proper melting of the
cell.
UniQ_SBC_B400
UniQ CUPSU
system
Program No:
Figure
This Controller is designed for managing the electric CPSU
package consisting of 2 UniQ eDual heat batteries
Figure 3.1: UniQ SBC B Controller & heat battery package

Page 9 of 24
UNIQ HEAT BATTERIES REFERENCE MANUAL_V2.3
Table 3.2: Controller inputs and outputs
Inputs
PCB Pins
Reading
Temperature sensor S1
J1.2 & J1.1
T1 / oC
Terminal marked T1 and 0V
Temperature sensor S2
J1.2 & J1.3
T2 / oC
Terminal marked T2 and 0V
Temperature sensor S3
J1.2 & J9-1
T3 / oC
LINK 1
J1.8 & J1.6
Terminal marked FV and 0V
LINK 2
J1.8 & J1.7
Terminal marked FT and 0V
SW1 & SW2
Settings –see Controller Setup
Outputs
PCB Pins
Reading
Heater control: Relay output - 1
J5-5 & J5-6
OR1. 0 or 1
Boiler control: Relay output - 2
J5-1 & J5-2
OR2. 0 or 1
Table 3: Control set points (oC)–Temperature sensors
UniQ_SBC_XX Controller type
_SBC_01
_SBC_02
_SBC_03
T_S1_ON
Bottom temperature sensor, TS1, heating demand on set point
65
45
45
T_S1_OFF
Bottom temperature sensor, TS1, heating demand off set point
77
65
65
T_S2_ON
Middle temperature sensor, TS2, heating demand on set point
55
55
55
T_S2_OFF
Middle temperature sensor, TS2, heating demand off set point
77
75
75
T_S3_ON
Top temperature sensor, TS3, heating demand on set point
45
65
65
T_S3_OFF
Top temperature sensor, TS3, heating demand off set point
75
77
77
T_S3_MAX_OFF
Maximum temperature permitted for sensor –Off limit, TS3 (Top)
85
85
85
T_S3_MAX_ON
Maximum temperature permitted for sensor - On, TS3 (Top)
80
80
80
T_S1_MAX_OFF
Maximum temperature permitted for sensor –Off limit, TS3
(Bottom)
85
85
85
T_S1_MAX_ON
Maximum temperature permitted for sensor - On, TS3 (Bottom)
80
80
80
3.2. Controller setup
3.2.1. Select options
Depending on the application, different options may be selected.
Holding switch, SW1, down will show the current setting on the 4 LEDs. Holding this switch down for longer than 5 seconds
will cause the LEDs to cycle. Release the switch, SW1, when the correct pattern of LEDs is illuminated, and this choice will
be stored. Refer to the Control Logic section for further explanation.
LED #
Option
#
Option description
Show/set by holding down SW1
D4
4
--
D3
3
Heat pump (65°C flow)
D2
2
PV input possible
D1
1
Charging demand level
3.2.2. Select program
One of 3 programs can be selected to match the application. Ensure that the correct program is chosen, or incorrect
operation will result.