Documentation - Heatweb

Mains pressure domestic hot water, at up to 6 bar pressure.
Effective hot water at lower storage temperatures.
Legionella safe hot water at lower storage temperatures.
Connection to combination boiler for after-heating of DHW.
Connection to solar panels and flue heat recovery as standard.
Optional connection to wood burners, heat pumps, and/or gas/oil boiler.
Optional provision of central heating.
Cylinder:
Capacity
Diameter
Height
Test Pressure
Maximum Working Pressure
Material
Welding
Insulation
Casing
200 litres
533mm
1500mm
9 bar
6 bar
316 Duplex Stainless 1.0mm
Laser
40mm CFC Free Polyurethane
Rotary Wound
Patent Applied For
Solar Heat Exchanger:
Type
Finned Stainless Coil
Surface Area 0.6m2
DHW Heat Exchanger:
Type
Twin IC8-40 External PHEs
Surface Area 1.67m2
Test Pressure
48 bar
Maximum Working Pressure
16 bar
Material
316 Stainless, Copper Brazed
Pressure Drop
25kPa at 30 lpm
Maximum Flow Rate
45 lpm
Connections:
Solar
Wood Burner
Heat Recovery
Boiler
Central Heating
Sensor Pockets
Immersion Heater
DHW
Cold Feed / Vent
Drain
22mm (x2)
1"FI (x2)
22mm (x2)
3/4"mm (x2)
22mm (x2)
1/2"FI (x4)
2 1/4"FI (x1)
22mm (x2)
3/4"FI (x2)
1/2"FI (x1)
Controls:
Pumps Fitted and wired (Wilo)
Flow Sensor Magnetic (Reed Switch)
Wiring
Immersion Heater
Main Controller (type1)
Main Controller (type2)
All components are factory wired and tested. Heat resistant cable throughout. Power
supply cable provided. 3Amp, 240vac supply required.
3kW fitted, with integral dry-fire and overheat protection. 16Amp, 240vac supply
required.
Resol ES: Independent control of solar and flue capture systems. Afterheat function
based on store temperature.
Crouzet Millennium 3: Independent control of solar and flue capture systems.
Variable pump speed control for DHW temperature regulation. Afterheat function
based on store temperature and DHW output temperature sensing, with pre-heat
supply temperature limitation. Option for alarm signals via GSM modem.
Dedicated Pressure Systems Ltd.
17 Manor Green Road, Epsom, Surrey KT19 8RA
Telephone 01372 803 675 Fax 01372 803 678 Email dps@heatweb.com
Website: http://www.heatweb.com

Wiring
CXC-210-ABA-LAAS+22+22+22+15+15+PA22U+PA22U+22
Flow
Switch
CXC-200-DUBLIN
8
1 Plate Heat Exchanger, L18-14 (80kW)
2 Flow switch
3 Heat Exchanger Pump
5 Drain off cock
7 Coated steel casing
8 Vent
9 Cold Feed
11 Wiring Centre
12 Resol ES Controlller
13 Boost Immersion Heater
34 Sensor Pocket
53 Y-Pattern Strainer
55 Solid Fuel / Gravity 1'' Connection
70 Spare Boss 1/2 FI BSP
71 Spare Boss 3/4 FI BSP
76 Flue Recovery Pump Assembly, 22mm
77 Flow to Energy Catcher
78 Return from Energy Catcher
79 Solar Pump Assembly, 22mm
80 Flow to Solar
81 Return from Solar
82 Sensors for Site Fitting
90 Cold DHW In, 22mm
92 Hot DHW Out
92
1
55
1
55
94
7
34
82
12
11
70
13
78
71
71
81
80
79
77
76
3
2
90
34
9
34
5
53
Connections onto the unit are compression or Tectite push-fit. When connecting into a push-fit fitting, ensure that a wheel-type pipe citter is
used and that there are no burs that may damage the o-rings. A dicsonnecting tool is supplied to enable release of pipes from push-fit
connections.
The outlet from the thermostatic mixing valve is made using the supplied solder union and washer (cable tied to the pipework).Please ensure
that the lowest point on the cold mains supply (after isolating valve) is fitted with a drain cock to both assist in servicing.
Connections onto the unit are compression or Tectite push-fit. When connecting into a push-fit fitting, ensure that a wheel-type pipe citter is
used and that there are no burs that may damage the o-rings. A dicsonnecting tool is supplied to enable release of pipes from push-fit
connections.
The outlet from the thermostatic mixing valve is made using the supplied solder union and washer (cable tied to the pipework).Please ensure
that the lowest point on the cold mains supply (after isolating valve) is fitted with a drain cock to both assist in servicing.

ABOUT THE SYSTEM
CXC-200-DUBLIN
The Dublin Heat Bank has been designed to meet local authority requirements for a hot water system
that is more efficient and cheaper to run than current installations.
The aim of the design has been to maximise the efficiency of all thermal technologies that can be
retro-fitted to properties, to reduce maintenance requirements, and to improve reliability by taking
an existing combination boiler installation and adding facilities for flue heat recovery from the gas
boiler, solar panels, a wood burner, and backup electric.
The advantages of adding the technologies using the Dublin Heat Bank are as follows:
1. Flue Heat Recovery systems can significantly improve the efficiency of a condensing boiler, and
if connected to a suitably sized store will provide hot water during the heating season, using
the recovered heat from the flue gases.
2. Solar panels can connect directly to the Dublin Heat Bank to provide up to 50% of the
households annual hot water requirements, with up to 100% of daily requirements on sunny
days. The system uses a unique direct connection method along with drain-down protection
that overcomes problems relating to freezing or overheat, and also removes the need for antifreeze
and regular maintenance to maintain system pressure and anti-freeze content. The
direct connection is also more efficient than using solar coils, and allows connection to very
large solar arrays as well as individual panels.
3. Wood burners can be connected directly to the Dublin Heat Bank using two connections
provided as standard. This allows the wood burner to supplement both central heating and hot
water, and can significantly reduce running costs and the carbon footprint of the property.
Combined with a local supply of free wood, this method of heating can provide low cost hot
water and heating during winter months,
4. The pre-heat system that the Dublin Heat Bank employs uses stored energy to heat up water for
domestic use. If the heated water is not quite hot enough for domestic use then it is fed through
the combination boiler to be topped up to a suitable temperature. This method ensures that a
minimum amount of gas is used, and the boiler is never used to heat stored water that may be
left to go cold, or could otherwise have been heated using a free energy source.
5. Electric backup to hot water is provided by an optionally fitted immersion heater in the Dublin
Heat Bank. This adds an important backup feature that allows the user to run hot water on
electricity if the boiler should fail to fire. It also allows the possibility of connecting a wind turbine
or other low cost electrical source to further reduce running costs.
6. Heat Pumps are another low temperature heat source that is often too low in temperature to
provide adequate hot water. When used in conjunction with the Dublin Heat Bank, heat pumps
can generate the majority of the stored energy using cheap rate overnight electricity, and this
can then be topped up for use by the combination boiler.
7. Legionella is a common problem in the supply of domestic hot water, and protecting against it
is of key importance. The Dublin Heat Bank heats water instantaneously as it is used, and the
stored water is not used to supply taps. No hot domestic water is stored and there is no chance
of Legionella bacteria growing as can happen in stored hot water systems.
8. Up to 9 bar cold supply pressures can be accommodated, with up to 6 bar pressure supplied to
hot taps (boiler dependent), and all using a vented storage cylinder that can be fitted without
unvented qualifications. In this way mains pressure systems can be installed using existing
installer networks, even if they do not hold the additional qualifications for installing pressurised
cylinders.
9. Long term reliability is achieved by the use of a high grade stainless steel store combined with
the thermal storage principle that prevents the store from attack by fresh ingress of water. All
systems come with a 25 year guarantee on the store, and it is believed that the store should last
considerably longer.

SCHEMATIC (Indirect Solar)
CXC-200-DUBLIN
The following schematic outlines a typical Dublin Heat Bank installation. All controls, pumps and valves
are factory fitted to the Dublin Heat Bank, wired and tested, with 2 year guarantee on components
and 1 year on-site backup.
SOLAR
PANEL
SENSOR
COLD STORAGE TANK
Level Check
F&E TANK
DRAIN BACK TANK
10 litre
COLD
FEED
VENT
SENSOR
ENERGY
CATCHER
CENTRAL
HEATING
CIRCUIT
COLD
FEED
BOILER
Filling Point
SENSOR
PLATE
HEAT
EXCHANGER
DIVERTING/MIXING VALVE
HOT
HEAT
BANK
+
SOLAR
CONTROLLER
Must have relay output
that can cativate drain
down valve.
-
HWS
BLENDING
VALVE
FLOW SWITCH
SENSOR
PUMP
PUMP
Drain Point

SCHEMATIC (Direct Sealed Solar)
CXC-200-DUBLIN
The following schematic outlines a typical Dublin Heat Bank installation. All controls, pumps and valves
are factory fitted to the Dublin Heat Bank, wired and tested, with 2 year guarantee on components
and 1 year on-site backup.
SOLAR
PANEL
SENSOR
Atmospheric Relief
Valve
Open
COLD STORAGE TANK
Filling and
Level Check
DRAIN BACK TANK
20 litre
SENSOR
ENERGY
CATCHER
CENTRAL
HEATING
CIRCUIT
COLD
FEED
BOILER
Filling Point
Auto Air Vent
SENSOR
PLATE
HEAT
EXCHANGER
DIVERTING/MIXING VALVE
HOT
HEAT
BANK
+
SOLAR
CONTROLLER
Must have relay output
that can cativate drain
down valve.
-
HWS
BLENDING
VALVE
FLOW SWITCH
SENSOR
PUMP
PUMP
Drain Point

Wiring is based upon the
RESOL DeltaSol ES Solar Controller,
Set to Arrangement 19.
The Heat Bank, and all connected equipment, must be installed by a competent person. Correct function and operation must be
checked. It is important that the incoming mains power supply has sufficient current and voltage, taking into account the supply
requirements of the rest of the property.
All power supplies must be fitted with double pole isolation within the cylinder cupboard, as well as suitably rated MCB protection at
distribution box.
The controller compares the temperatures at the collector
sensors S1 and S6 to the store temperature at store sensor S2.
If one of the measured temperature differences is higher
than the adjusted switch-on temperature differences, the
corresponding pump (P1, P2) will be activated and the store
will be loaded.
Domestic hot water afterheating (P3) is possible via a
thermostat function (S3).
floating relay
electromech.
relay
semi-conductor
relay
L'
L N
Sensors
Bus
GND
S1
S2
S3
S4
S5
S6
S7
S8
V40
CS10
VBus
RS232
RP-A
RP-M
RP-R
R5
R4
R3
R2
R1
S1
S6
After Heating Diverting Valve
P1
(R1)
P2
(R2)
S3
S2
Relay output
Note
R1
solar pump (P1) with speed control
R2
pump (P2) with speed control
RP-M
domestic hot water afterheating
RP-A
Sensor input
description
S1
temperature soar collector
S2
temperature store base
S3
S6
CS10 (optional)
temperature store top
temperature flue recovery
irradiation
Heat
Exchanger
Pump
Flow
Switch
Ensure earth continuity throughout. In wiring diagrams, earth and neutral wires may be abbreviated for clarity.

®
DeltaSolES
channel description factory
setting
COL1 temperature collector 1 -------
TSTL temperature store base -------
TSTU temperature store 1 top -------
COL2 temperature collector 2 -------
IRR irradiation -------
n1 % speed relay 1 -------
n2 % speed relay 2 -------
h P1 operating hours relay 1 -------
h P2 operating hours relay 2 -------
h P3 operating hours relay 3 -------
change
to
TIME time ------- Adjust the actual clock time.
note
Arr arrangement choice 1 19 Arrangement 19: 2 collector-system (east-/west
collectors) with 1 store and domestic hot water
afterheating
DT O switch-on temperature difference 6.0 K Adjust the desired switch-on temperature
differ ence. Note: This value applies to collector
1 and 2
DT F switch-off temperature difference 4.0 K Adjust the desired switch-off temperature
differ ence. Note: This value applies to collector
1 and 2
DT S set temperature difference 10.0 K Adjust the desired set temperature difference.
Note: This value applies to collector 1 and 2
RIS rise 2 K If the adjusted temperature difference DTS is
reached and if the temperature increases by
the difference RIS, the speed will be increased
by 10% respectively.
Note: This value applies to collector 1 and 2
S MX maximum store temperature 60 °C 90°C Adjust the desired maximum store temperature
EM1 emergency temperature collector 1 140 °C Adjust this value to 200°C when the collector
emergency shutdown function should not start.
OCX1 option collector cooling collector 1 OFF
OCN1 option minimum limitation collector
OFF
1
OCF1 option frost protection collector 1 OFF
EM2 emergency temperature collector 2 140 °C Adjust this value to 200°C when the collector
emergency shutdown function should not start.
OCX2 option collector cooling collector 2 OFF
OCN2 option minimum limitation collector
OFF
2
OCF2 option frost protection collector 2 OFF
OREC option recooling OFF
O TC option tube collector OFF
NH O switch-on temperature thermostat 1 40.0 °C
50°C
Adjust the desired switch-on temperature for
domestic hot water afterheating
NH F switch-off temperature thermostat 1 45.0 °C Adjust the desired switch-off temperature for
90°C
domestic hot water afterheating
08105 deltasol_es.sys.indd

CXC-200-DUBLIN
Connections onto the unit are compression or Tectite push-fit. When connecting into a push-fit fitting, ensure that a wheel-type pipe cutter is
used and that there are no burs that may damage the o-rings. A dicsonnecting tool is supplied to enable release of pipes from push-fit
connections.
Filling the Heat Bank:
The unit is filled by the opening the supply to the Feed and Expansion tank, and any isolating valves on the feed from the FE tank. The FE tank
will start to fill, followed by the store and any circuits directly connected to it. Always check that the water level in the FE tank is at least 3
inches below the overflow, when the system is full.
Wiring Diagram:
It CXC-210-ABA-LAAS+22+22+22+15+15+PA22U+PA22U+22
is advised to temporarily remove the ball from the ball valve in the FE tank to test the overflow operates under failure conditions. Always
replace securely.
Immersion Heater Overheat and Dry-Fire protection is provided within each heater by the use of an additional reset thermostat. If the
heater power supplies are turned on before the unit is filled then there is a very good chance that the thermostat will need re-setting. Simply
remove the immersion heater cap and push in the small black button on the thermostat - if it clicks it has reset.
Testing of Hot Water Services:
Once the store has fully heated up, it is important to check that hot water is available at all hot water outlets, and with the required flow
rates and temperatures.
The hot water supply temperature should be checked, and if required adjusted using the fitted thermostatic blending valve. Once set, the
blending valve can be locked in position (see valve instruction sheet).
If not locked in position, set the thermostatic mixing valve to maximum.
Flow

CXC-200-DUBLIN