GAH Electrastream Operating instructions

41
A complete cost effective solution for Hot and Cold
water supply and Electric Central Heating with water
filled radiators, suitable for Self-contained Flats, Small
Dwellings, Offices, Home Offices and Granny Annexes.
PlusPlus
PlusPlus
Plus
ElectrastrElectrastr
ElectrastrElectrastr
Electrastream Pluseam Plus
eam Pluseam Plus
eam Plus
ElectrastrElectrastr
ElectrastrElectrastr
Electrastreameam
eameam
eam
Patents GB23449908 + Application 01514800.2 WRC Approval Pending
USER and INSTALLATION
INSTRUCTIONS
05/12/06
30,000 - 9kW for Heating and Hot Water

1
CONTENTSCONTENTS
CONTENTSCONTENTS
CONTENTS
1 INTRODUCTION1 INTRODUCTION
1 INTRODUCTION1 INTRODUCTION
1 INTRODUCTION
2 OPERA2 OPERA
2 OPERA2 OPERA
2 OPERATOR CONTROLSTOR CONTROLS
TOR CONTROLSTOR CONTROLS
TOR CONTROLS
3 TECHNICAL INFORMA3 TECHNICAL INFORMA
3 TECHNICAL INFORMA3 TECHNICAL INFORMA
3 TECHNICAL INFORMATIONTION
TIONTION
TION
5 COMMISSIONING5 COMMISSIONING
5 COMMISSIONING5 COMMISSIONING
5 COMMISSIONING
7 F7 F
7 F7 F
7 FAULAUL
AULAUL
AULT FINDINGT FINDING
T FINDINGT FINDING
T FINDING
CONTENTSCONTENTS
CONTENTSCONTENTS
CONTENTS
Section 1 IntrSection 1 Intr
Section 1 IntrSection 1 Intr
Section 1 Introductionoduction
oductionoduction
oduction
1-1 Introduction ---------------------------------------------- 2
1-2 System Layout ------------------------------------------- 4
1-3 Immersion Heater Operation ------------------------------ 6
6 SERVICING6 SERVICING
6 SERVICING6 SERVICING
6 SERVICING
4 INST4 INST
4 INST4 INST
4 INSTALLAALLA
ALLAALLA
ALLATIONTION
TIONTION
TION
IMPORTANT
BEFORE STARTING THE INSTALLATION OF THE ELECTRASTREAM CHECK ALL COMPONENTS HAVE
BEEN DELIVERED AND ARE IN SATISFACTORY CONDITION.
Section 2 Operator ContrSection 2 Operator Contr
Section 2 Operator ContrSection 2 Operator Contr
Section 2 Operator Controlsols
olsols
ols
2-1 System Control ------------------------------------------- 7
2-2 Electrastream Control Unit -------------------------------- 9
2-3 Shut Off Valves ------------------------------------------ 12
2-4 Expansion Relief Discharge ------------------------------ 13
2-5 Thermostatic Mixing Valve ------------------------------ 14
2-6 Servicing ------------------------------------------------ 14
Section 3 TSection 3 T
Section 3 TSection 3 T
Section 3 Technical Informationechnical Information
echnical Informationechnical Information
echnical Information
3-1 Specifications ------------------------------------------- 15
3-2 Dimensions --------------------------------------------- 16
3-3 Wiring --------------------------------------------------- 18
Section 4 InstallationSection 4 Installation
Section 4 InstallationSection 4 Installation
Section 4 Installation
4-1 Building Control ----------------------------------------- 19
4-2 Electrical ------------------------------------------------ 19
4-3 Hot Water System --------------------------------------- 20
4-4 Heating System ----------------------------------------- 22
4-5 Expansion Discharge ------------------------------------ 25
4-6 System Pressure ---------------------------------------- 27
4-7 Parts Supplied - ----------------------------------------- 28
Section 5 CommissioningSection 5 Commissioning
Section 5 CommissioningSection 5 Commissioning
Section 5 Commissioning
5-1 Commissioning Checks --------------------------------- 32
5-2 Handing Over ------------------------------------------- 34
Section 6 ServicingSection 6 Servicing
Section 6 ServicingSection 6 Servicing
Section 6 Servicing
6-1 Routine Service ----------------------------------------- 35
Section 7 Fault FindingSection 7 Fault Finding
Section 7 Fault FindingSection 7 Fault Finding
Section 7 Fault Finding
7-1 Fault Finding -------------------------------------------- 36

2
1-1 Introduction
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1
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1
Note
For components supplied with system refer
to page 28.
Fig. 1-1a Electrastream
ELECTRASTREAM PLUS ELECTRASTREAM
This Handbook has been compiled to assist in the Installation and Operation of GAH
(HEATING PRODUCTS) LIMITED Electrastream domestic hot and cold water and central
heating system.
After installation the Installer of the system should give full operating instructions to the
householder for the Electrastream System.
1-1.1 The Electrastream System
The Electrastream system by GAH (Heating Products) Ltd. has been developed as a cost
effective solution for domestic hot and cold water and electric central heating with water
filled radiators.
Electrastream is suitable for flats, small dwellings, offices, home offices and granny
annexes.
1-1.2 Basic Principles
Electrastream is available in two options:-
ELECTRASTREAM PLUS - with cold water storage (accumulator)
ELECTRASTREAM - without cold water storage.
Water in the unvented cylinder is heated by a high powered titanium electric immersion
heater. Hot water is drawn from the cylinder and mixed with cold water by a thermostatic
mixing valve; this ensures safer lower temperatures at the hot water outlets.
The hot water within the unvented indirect cylinder also heats the water for the heating
system via the indirect coil within the cylinder. The circulating pump for the heating
system is controlled by a thermostat and programmable timer with override so that heat
is available on demand, providing there is a supply of hot water.
ELECTRASTREAM PLUS
The Electrastream Plus system is supplied with a cold water storage.
The accumulator has an internal controlled butyl diaphragm, incoming cold water is
stored within this diaphragm at mains pressure. The air space between the diaphragm
and the accumulator case is pressurised, this balances the supply and maintains
pressure to the unvented hot water cylinder and cold outlets. When hot and cold water
outlets are turned on, the stored water from the accumulator supplements water from the
incoming main, this results in consistent pressure and flow to all taps, showers and baths
even when outlets are used simultaneously. Pressure will be sustained for as long as the
accumulator is holding sufficient volume of water.

3
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1
1-1.3 Electrastream System Features
ELECTRASTREAM AND ELECTRASTREAM PLUS
1. Only water and electric economy tariff services required.
2. No gas or oil - no Boiler.
3. Central heating with conventional water filled radiators.
4. Heat on demand 24 hours a day.
5. Can be timed for economy tariff.
6. Far more flexible heating control than storage radiators.
7. Hot and cold water supply from GAH Dualstream technology.
8. Hot water to taps and shower from unvented cylinder.
9. Hot water to outlets temperature controlled by thermostatic mixing valve.
10. Mains pressure to hot and cold outlets.
11. All plumbing, water storage and controls are within the dwelling - no header tank.
12. Low maintenance cost, no CORGI Landlord Certificate required.
13. 9kW titanium immersion heater (combined 3 x 3kW).
14. Immersion heater will still work should one or two of its elements fail.
15. Stainless Steel Unvented Cylinder with 20 years guarantee.
ELECTRASTREAM PLUS
1. Balanced hot and cold supply to taps.
2. All taps and showers at maximum system pressure.
3. Pressure maintained for both hot and cold taps even when other taps are open
(subject to volume used).
ELECTRASTREAM SOLAR
The Electrastream system is suitable for Solar water heating - for further details consult
GAH (Heating Products) Ltd.
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1
Thermostatic
Mixing Valve
Twin Coil Cylinder
Incoming
Water Main
Electrastream
Immersion
Heater
Pump
Accumulator
Coldwater torage
Electrastream
Control
Bottom Coil
heated by olar
olar
Collectors
olar
Control
Fig. 1-1b Electrastream and Solar Application

4
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1
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1
1-2 System Layout
Fig. 1-2a Typical Schematic Installation - Electrastream
Fig. 1-2b Typical Schematic Installation - Electrastream Plus
✓PARTS SUPPLIED
✓PARTS SUPPLIED

5
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1
Note
All installations must comply with relevant
regulations - refer to section 4-1.
1-2.1 Hot & Cold Water Supply
Refer to fig. 1-2a for Electrastream.
Refer to fig. 1-2b for Electrastream Plus.
The incoming mains water supply is connected to the combination valve which is
assembled to the unvented indirect hot water cylinder. The combination valve has an
integral check valve. A double check valve is supplied, this is only required to be fitted if
back syphonage is possible from any item fitted prior to the combination valve. A
connection must be provided for the system fill.
Also provision has to be made for water softener and outside tap as applicable.
The combination valve limits the incoming pressure to 3.5 Bar, it has an integral non-
return valve and pressure relief valve (PRV).
Supply to the hot outlets is taken from the cylinder and mixed with cold water by the
thermostatic mixing valve (supplied), this ensures that a safer lower temperature hot
water is available at outlets.
ELECTRASTREAM ONLY
Cold supply to all outlets is taken direct from the main supply. If the mains pressure is
high (over 3.5 Bar) a pressure reducing valve is recommended.
ELECTRASTREAM PLUS
The incoming mains supply is connected to the combination valve. Once passed the
valve it supplies the accumulator and the hot water cylinder.
Supply to the cold outlets is taken from a Tee fitting at the base of the accumulator.
1-2.2 System Control
The system is controlled by a purpose designed Electrastream Control unit, this controls
the hot water and heating ON/OFF times together with the heating pump and valve. The
control also has a dedicated programme that ensures efficient use of electricity by
selecting how many of the three immersion heater elements are required to meet the
current demand for heating or hot water. It also incorporates an automatic heating
element test function.
1-2.3 Heating System
The heating system has water filled radiators and is a standard ‘sealed system’. The
water for the heating is heated by being pumped through the indirect coil of the indirect
cylinder. A room thermostat and the Electrastream Control unit’s programmable timers
control the circulating pump and motorised valve.
1-2.4 Electric System
The unvented cylinder is heated by a 9kW (combined 3 x 3kW) titanium immersion
heater. This is controlled by the cylinder temperature sensor and the Electrastream
Control unit.
Electrastream is designed to make full use of economy tariff electricity supplies and the
wiring must be arranged to make full use of this.
1-2.5 Output
The 9kW immersion heater provides 30,000 Btu (9kW) for heating and hot water.
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1
GAH offer a range of quality Water
Softeners, for information contact
GAH (HEATING PRODUCTS) LTD.

6
1-2.6 Scale Protection
IMPORTANT All installations should have a scale protection device fitted
and in areas known to have hard water, a water softening device is
strongly recommended.
GAH recommend and promote the use of scale prevention devices and water softeners in
areas that are known to have hard water. Installed correctly they prolong the life of
equipment and help prevent limescale formation in the pipework. Water softeners
provide the advantages of soft water, as well as preventing scale build up on taps and
shower heads.
Water softeners and any mains fed system must be of adequate capacity and should be
installed with suitably sized hoses to prevent any possibility of flow reduction.
1-2.7 Frost Protection
When planning the installation location of both the accumulator and the unvented
cylinder, consideration must be given to the risk of frost and the use of frost protection.
The design of the accumulator gives it a degree of frost protection enabling it to be
located within the dwelling, loft space or garage without further protection.
The cylinder can also be installed within the dwelling or loft space without further
protection.
Cylinders or accumulators must have frost protection when they are installed where low
temperatures could be a potential problem. Cylinders can be protected by a frost
thermostat.
To comply with Building Regulations, all necessary pipework must be suitably lagged.
1:2.8 Handling and Storage
The Electrastream system will be delivered fully wrapped and palleted.
Lift the package carefully using a safe and suitable lifting method.
Keep the packaging intact and store in a secure dry and weatherproof area prior to
installation.
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1INTRODUCTION 1
INTRODUCTION 1
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1-3 Immersion Heater Operation
The three immersion heater elements are switched on and off by the Electrasteam
Control. They have a staggered switch on sequence that prevents sudden high load on
the power supply.
The control also limits the use of the elements for efficiency.
When the hot water within the cylinder is within 2° of the set (8) Target ##°C only one
element will be on.
When the hot water within the cylinder is within 2° and 4°C below the set (8) Target
##°C then two elements will be on.
When the hot water within the cylinder is below 6°C of the set (8) Target ##°C then all
three elements will be on.

7
OPERAOPERA
OPERAOPERA
OPERATOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2
2-1 System Control
Fig. 2-1a Schematic of Typical Controls
The heating and hot water system is all electric. The hot water for the taps (outlets) and
radiators is heated by the immersion heater in the cylinder.
The system will have the following controls.
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2
2-1.1 Isolating Switch
The system will have a double pole isolating switch with neon and mechanical indicators.
This could be a pull cord or wall mounted type.
When the switch is ON (neon on) the system is operational.
When the switch is OFF (neon off) no hot water or heating will be available.
It is advised to turn the switch off when hot water and heating are not required, i.e.
holidays etc.
2-1.2 Immersion Heater
WARNING The immersion heater does not have an internal thermostat
(like most immersion heaters) the cover should not be removed.
When the cover is removed live electrical terminals are exposed.
ISOLATE THE IMMERSION HEATER BEFORE REMOVING ITS COVER.
2-1.3 Thermal Cut-Out Thermostat
In the thermostat box on the cylinder is the thermal cut-out thermostat. This prevents the
water within the cylinder from overheating.
The immersion heater thermal cut-out thermostat is a manual reset type, this means it
has a small button that pops up when the thermostat has been tripped by overheating.
To reset the system after overheating, switch heating and hot water OFF, allow time for
the water to cool, or run off some hot water, then remove the cap and press the button.
If the immersion heater thermal cut-out trips more than once, switch off the Electrastream
isolating switch and contact your installer.
Fig. 2-1b Isolating Switch
Fig. 2-1c Thermal Cut-Out Thermostat
MANUAL RESET
BUTTON

8
OPERAOPERA
OPERAOPERA
OPERATOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2
2-1.4 Heating Motorised Valve
When the room thermostat is calling for heat and the Electrastream Control is set for heat
ON, the heating motorised valve will open allowing water to the radiators.
Display icon ‘Valve ’ indicates the valve is open.
2-1.5 Pump
The heating circulating pump is controlled by the Electrastream Control unit in response
to the room thermostat.
The pump has 3 speeds, it is normally set to speed 2.
Display icon ‘Pump ’ indicates the pump is ON.
2-1.6 Room Thermostat
The room thermostat controls the heat within the dwelling.
When the room thermostat is calling for heat and the Electrastream Control is set for heat
ON, the heating circulating pump will run, pumping water through the radiators.
Display icon ‘Therm ’ indicates the room thermostat is calling for heat.
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2

9
OPERAOPERA
OPERAOPERA
OPERATOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2
2-2 Electrastream Control Unit
Fig. 2-2a Electrastream Control Unit - Normal Screen
2-2.1 Control Unit Display - Normal Screen
HEAT 1 Indicates Element 1 is ON
HEAT 2 Indicates Element 2 is ON
HEAT 3 Indicates Element 3 is ON
VALVE Indicates Heating Valve is OPEN
PUMP Indicates Heating Pump is ON
THERM Indicates Room Stat is calling for heat
>> >>
>
>> >>
>
>> >>
>
>> >>
>
>> >>
>
>> >>
>
Heating on
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10
Use to increment time up
Use to increment time down
Use to select hours (hh:) or
minutes (:mm)
When SET is pressed, time settings are
displayed for 10 seconds, display then reverts
back to normal screen
NORMAL SCREEN
2-2.2 Display Time Settings
Display only. Indicates the total hours that each immersion
heater element has been in operation. (For service
engineers information only.)
Fig. 2-2b Electrastream Control Unit - Time Setting Displays
Notes:- All times are given in 24 hour clock.
OPERAOPERA
OPERAOPERA
OPERATOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2
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2

11
2-2.3 Economy Tariffs
Regional Electricity suppliers have their own ‘Off-Peak’ tariffs that will provide an
economical supply of power for the Electrastream system.
It is vital that the time settings of the Electrastream Control are set to make the most use
of the available ‘Off-Peak’ tariffs.
2-3.4 Normal Tariffs
Normal tariffs are at all times that are not designated for ‘Off-Peak’, the cost of electricity
during normal times will be more expensive. Therefore avoid setting heating and hot
water On during these periods.
2-3.5 Setting Heat and Hot Water Requirements
Figure below shows a 24 hour clock with typical use of the Electrastream during ‘off-
peak’ ecomomy 10 settings.
Note:-
* The electricity supply company has to
make special arrangement to the dwellings
electrical supply to enable Electrastream
to be used during both ‘off-peak’ and
‘normal’ tariffs- consult the installing
electrician.
OPERAOPERA
OPERAOPERA
OPERATOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2
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Start 1 - 03.00 (3am)
Stop 1 - 05.00 (5am)
Start 2 - 14.00 (2pm)
Stop 2 - 16.00 (4pm)
Start 3 - 20.00 (8pm)
Stop 3 - 21.30 (9.30pm)
All times fall within Economy Tariff
‘Boost can be used at any time during Economy or *Normal Tariff to provide heating
and hot water.
To turn hot water and heating OFF during ON periods (auto) press twice. It will
require switching to Auto again when required.
To turn heating only OFF during ON period (auto) and during ‘Boost’ press . It will
require switching to Auto again when required.
To turn hot water only ON during Off periods (auto) press . It will require switching to
Auto again when required.
To turn hot water and heating ON during Off periods (auto) press then . Both will
require switching to Auto again when required.

12
OPERAOPERA
OPERAOPERA
OPERATOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2
2-3 Shut Off Valves
The Electrastream installation will have a number of shut off valves, the location of these
will be dependent on the installation - figs. 2-3a and 2-3b show typical layouts.
Fig. 2-3a Typical Shut Off Valve Locations - Electrastream
Fig. 2-3b Typical Shut Off Valve Locations - Electrastream Plus
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13
The Electrastream hot water cylinder has a Temperature/Pressure Relief Valve (TPRV); in
the event of the pressure within the cylinder becoming too high, the TPR Valve will vent.
The Cylinder connection for the TPR valve must not be used for any other purpose.The Cylinder connection for the TPR valve must not be used for any other purpose.
The Cylinder connection for the TPR valve must not be used for any other purpose.The Cylinder connection for the TPR valve must not be used for any other purpose.
The Cylinder connection for the TPR valve must not be used for any other purpose.
The heating system has its own Pressure Relief Valve (PRV) located adjacent to the
heating expansion vessel; in the event of the pressure within the heating becoming too
high, the PRV will vent.
The combination valve also includes a PRV.
A Tundish will be fitted in the system, this should be located in the same space or
compartment as the hot water cylinder. This device provides an air break when pressure
is being vented from the cylinder TPRV.
The heating system PRV may also be connected to the cylinder Tundish, alternatively it
may have its own.
When pressure is being vented, water/steam will be evident at the Tundish and from the
discharge pipe of the Tundish.
In the event of water/steam being seen at the discharge pipe or Tundish ascertain whether
Fig. 2-4a Tundish
Note
The Tundish or discharge pipe should
remain visible, do not box in or cover up.
AIR BREAK
DISCHARGE PIPE
2-4 Expansion Relief Discharge
2-3.1 Stop Cock
Normally located at the point where the mains supply enters the dwelling.
Shuts off the mains water supply to the dwelling.
2-3.2 Double Check Valve (If fitted)
Normally located after the Stop Cock. Prevents water backfeeding to main.
Shuts off the mains water supply to the dwelling.
2-3.3 Cold Water Shut Off Valve
Located in the cold feed to the taps/outlets.
Shuts off the cold water to the taps/outlets.
2-3.4 Supply Water Shut Off Valve
Normally located where the cold supply connects to the combination valve on the
cylinder.
Shuts off the cold supply to the Electrastream system.
2-3.5 Hot Water Shut Off Valve
Normally located where the Domestic Hot Water feed comes from the cylinder.
Shuts off the hot water to the taps.
2-3.6 Accumulator Isolating Valve
ELECTRASTREAM PLUS ONLY
Located in the feed from the accumulator. Isolates water in accumulator.
Note
When opening the stop cock turn the valve
fully open then close ½ turn, this prevents
the valve sticking.
Fig. 2-3c Valves
OPEN
CLOSED
IMPORTANT Before closing ANY valve, switch OFF the Electrastream
Isolating Switch.
OPERAOPERA
OPERAOPERA
OPERATOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2
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14
Note
For more information see 4-5.
It is recommended the system is inspected by an approved engineer once per year.
The service procedure is included in section 6.
2-6 Servicing
OPERAOPERA
OPERAOPERA
OPERATOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2TOR CONTROLS 2
TOR CONTROLS 2
it is caused by the heating system or hot water system and do the following:-
1. Turn ON a hot tap to relieve the pressure.
2. Turn OFF the immersion heater.
3. Turn OFF the heating system.
4. Investigate possible cause for high pressure from the hot water system e.g:-
i Cylinder Thermostat is set too high.
ii Restriction in hot water pipework.
iii Loss of air pressure in the accumulator resulting in no expansion
(Electrastream Plus only)
If the heating heating system is the cause then :-
5. Check that the radiators are turned on, the heating system should never be operated
with all radiators OFF.
If all radiators are fitted with thermostatic valves, these can all be in a shut condition
if the temperature in the dwelling is sufficient. In this circumstance the heating
system should have a bypass that should be open - see fig. 1-2a & 1-2b.
6. Investigate possible cause for high pressure e.g. air in the heating system.
7. Contact the installer before restarting the system.
2-5 Thermostatic Mixing Valve
The Mixing Valve will be fitted in the supply to the hot taps/outlets, it may be in a different
location than the cylinder. This valve mixes hot water from the cylinder with cold water to
provide hot water of a constant temperature at the taps.
The recommended maximum hot water temperature at the taps is 60ºC.
The recommended setting of the valve is between No.4 and 6 (49º to 58ºC).
The Mixing Valve is factory set to the following approximate mixed outlet temperatures:-
Knob Position Min 1 2 3 4 5 6 7 Max
Output Temp. ºC 27º 32º 38º 44º 49º 53º 58º 63º 67º
Fig. 2-5a Thermostatic Mixing Valve
WARNING
Do not set the water temperature too high as this can cause scalding
especially to the young and old.
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TECHNICAL INFORMATECHNICAL INFORMA
TECHNICAL INFORMATECHNICAL INFORMA
TECHNICAL INFORMATION 3TION 3
TION 3TION 3
TION 3
3-1 Specifications
3-1.1 Cylinder
Material .............................................................................................. Stainless Steel
Maximum Water Supply Pressure ..................................................................... 6.0 Bar
Operating Pressure ........................................................................................... 3.5 Bar
HTPR Valve ............................................................................................. 7.0 Bar/90°C
Thermal Cut-Out (in contactor box) ......................................................... fixed @ 90ºC
Immersion Heater Voltage ............................................................................ 240V
Indirect Cylinder 125 and 150...................... combined 3 x 3kW
Reheat time - 125 Cylinder ................................................... ( t = 50°C) 50 minutes
Reheat time - 150 Cylinder ................................................... ( t = 50°C) 58 minutes
Motorised Valve............................................................................................... V4303H
3-1.2 Accumulator
Membrane ........................................................................... Butyl for wholesome water
Maximum pressure .......................................................................................... 7.0 Bar
Minimum pressure .................................................................................... 0.5/0.8 Bar
Factory set pressure ............................................................................................ 2 Bar
3-1.3 Pipework
All pipes should be sized to suit application.
Suitable types:- Solderered copper, compression type and plastic. Push fit fitting must
be specified as suitable for sealed systems.
3-1.4 Electrics
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33
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3
WRC Certificate No. 0605118

16
33
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3
3-2 Dimensions
TECHNICAL INFORMATECHNICAL INFORMA
TECHNICAL INFORMATECHNICAL INFORMA
TECHNICAL INFORMATION 3TION 3
TION 3TION 3
TION 3
3-2.1 Cylinder Dimensions
COMPRESSION FITTINGS ARE SUPPLIED TO ADAPT THE
CYLINDER TAPPINGS TO THE PIPE SIZES SHOWN.
Fig. 3-2a Cylinder Dimensions
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521IDT sertil5215401505513576508
051IDT sertil0515021505513518569
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17
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3-2.2 Indirect Twin Cylinder Dimensions
COMPRESSION FITTINGS ARE SUPPLIED TO ADAPT THE
CYLINDER TAPPINGS TO THE PIPE SIZES SHOWN.
Fig. 3-2b Twin Cylinder Dimensions
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SNOISNEMID
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45°
22.5°
ØB
A
E
G
F
HOT WATER TO
TAPS -22mm
COLD MAINS SUPPLY IN
-22mm
PRIMARY HEAT
SOUCE FLOW
(SOLAR)
BOILER RETURN
-22mm
E PANSION
DISCHARGE
COLD TO
TAPS -22mm
500 maximum
TPRV
C
D
BOILER FLOW
-22mm
PRIMARY HEAT
SOUCE FLOW
(SOLAR)
TWIN COIL CYLINDERS ARE USED FOR SOLAR
WATER HEATING APPLICATIONS SEE 1-2.3
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3

18
3-2.4 Control Unit Dimensions
Fig. 3-2d Controller Dimensions
TECHNICAL INFORMATECHNICAL INFORMA
TECHNICAL INFORMATECHNICAL INFORMA
TECHNICAL INFORMATION 3TION 3
TION 3TION 3
TION 3
940
Ø
535
PRE-CHARGE VALVE - SCHRAEDER
Ø28
BASE VENTED TO PREVENT
CONDENSATION & FOR FLOOR FI ING
TEE 28/28/28
COMPRESSION FITTING
COMPRESSION FITTINGS
1040
100
Essential
Access
3-2.3 Accumulator Dimensions
* Water content is up to 65% of the accumulator volume.
Total weight = weight empty + water content @ 1kg/litre.
Fig. 3-2c Accumulator Dimensions
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002
071
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TECHNICAL INFORMATECHNICAL INFORMA
TECHNICAL INFORMATECHNICAL INFORMA
TECHNICAL INFORMA
33
33
3

19
3-2.5 Cased System Dimensions
Fig. 3-2e Cylinder Dimensions
PIPEWORK NOT TO SCALE
33
33
3
AA
AA
ATION 3TION 3
TION 3TION 3
TION 3