ElectraStream 200 Скачать руководство пользователя страница 46

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INST

INSTALLA

ALLA

ALLATION 4

TION 4

DOMESTIC HOT WATER OUT
CONNECTION 22mm

CYLINDER TPR VALVE

CYLINDER DRAIN
COCK

UNVENTED CYLINDER

TUNDISH

COMBINATION VALVE

CYLINDER HEATING FLOW
CONNECTION

CYLINDER TEMPERATURE SENSOR
IN BOX

TRI-CORE HEATER
3 qty x 3kW ELEMENTS

HEATING SYSTEM FILLING LOOP
CONNECT ONLY FOR FILLING

HEATING RETURN CONNECTION 22mm

MOTORISED VALVE

HEATING FLOW 22mm CONNECTION

HEATING PR VALVE - 3 Bar

HEATING CIRCULATING PUMP
& VALVES

HOT WATER
EXPANSION VESSEL 8L

THERMOSTATIC
MIXING VALVE FOR DHW

COLD MAINS IN
CONNECTION 22mm

HOT WATER PRV- 6 Bar

CONSUMER UNIT
C/W DP ISOLATOR, RCD & MCB

ELECTRASTREAM
CONTROL UNIT

TEMPERATURE PROBE CABLE
& OVER TEMPERATURE CUT-
OUT CABLE

FRAME

SUPPORT FRAME

4-7.3 Connections to Electrastream Pre-Piped

Fig. 4-7c Electrastream Pre-Piped Connections

TUNDISH DISCHARGE TO BE
ARRANGED AND SIZED TO COMPLY
WITH BUILDING REGULATIONS.

OVER TEMPERATURE CUT-OUT
THERMOSTAT

SINGLE COIL SHOWN
TWIN COIL 210 IS SIMILAR LAYOUT

IMPORTANT
Plumbing must remain as supplied.
Do not add to or change any plumbing or connections.

44444

HEATING EXPANSION
VESSEL 10L

Содержание 200

Страница 1: ...ld water supply and Electric Central Heating with water filled radiators suitable for Self contained Flats Small Dwellings Offices Home Offices and Granny Annexes 9 kW 30 000 Btu for Heating and Hot Water 27 02 13 T T T T Twin Coil Cylinder option available for SOLAR ener win Coil Cylinder option available for SOLAR ener win Coil Cylinder option available for SOLAR ener win Coil Cylinder option av...

Страница 2: ...GAH HEATING PRODUCTS LTD TD TD TD TD Manual by Harber Technical Services Tel Fax 01263 515444 E mail info harbertech co uk www harbertech co uk GAH Heating Pr GAH Heating Pr GAH Heating Pr GAH Heating Pr GAH Heating Products Ltd oducts Ltd oducts Ltd oducts Ltd oducts Ltd Building 846 Bentwaters Parks Rendlesham Woodbridge Suffolk IP12 2TW T T T T Tel el el el el 01394 421160 01394 421160 01394 42...

Страница 3: ...tatic Mixing Valve 22 2 6 Servicing 22 Section 3 T Section 3 T Section 3 T Section 3 T Section 3 Technical Information echnical Information echnical Information echnical Information echnical Information 3 1 Specifications 23 3 2 Dimensions 25 3 3 Wiring 29 Section 4 Installation Section 4 Installation Section 4 Installation Section 4 Installation Section 4 Installation 4 1 Building Control 31 4 2 ...

Страница 4: ...e or tundish switch the system Off and contact installer r ge pipe or tundish switch the system Off and contact installer r ge pipe or tundish switch the system Off and contact installer r ge pipe or tundish switch the system Off and contact installer refer to efer to efer to efer to efer to Fault Finding section 7 Fault Finding section 7 Fault Finding section 7 Fault Finding section 7 Fault Findi...

Страница 5: ...tion of GAH HEATING PRODUCTS LIMITED This Handbook has been compiled to assist in the Installation and Operation of GAH HEATING PRODUCTS LIMITED This Handbook has been compiled to assist in the Installation and Operation of GAH HEATING PRODUCTS LIMITED This Handbook has been compiled to assist in the Installation and Operation of GAH HEATING PRODUCTS LIMITED This Handbook has been compiled to assi...

Страница 6: ... 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 sust...

Страница 7: ...efer to page 9 Note Further options are available consult GAH Heating Products Ltd 1 1 4 Electrastream System Features ELECTRASTREAM AND ELECTRASTREAM TWIN COIL 1 Only water and electric 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 sto...

Страница 8: ...th RCD Drain 15mm Discharge 3Hot Water Expansion Vessel 15mm 22mm 3 3 3 3Motorised Valve 28mm 28mm 22mm Incoming mains supply Single Check Valve 3Heating System Fill 15mm 3 5 Bar Pressure Reducing Valve Water Softener option 3Isolating Valve 22mm 3Cylinder Temperature Sensor Thermal Cut Out 3Tundish 3Heating Expansion Vessel 8l No valves to be fitted between PRV and Expansion Vessel No valves to b...

Страница 9: ... to taps Single Check Valve Economy Tar Heating System Fill 15mm Kitchen Kick Space Heater Shower Room Towel Rail RCD Consumer Unit with RCD Drain 15mm Cylinder Temperature Sensor Thermal Cut Out Discharge Hot Water Expansion Vessel Cold water storage Isolating Valve Isolating Valve 15mm 22mm 22mm Water Softener option Motorised Valve 28mm 28mm 3 5 Bar Pressure Reducing Valve Isolating Valve Tundi...

Страница 10: ...owel Rail RCD Consumer Unit with RCD 3HW Expansion Vessel 3 Full Bore Isolating Valve 28mm 28mm 22mm 3Isolating Valve Discharge PRV 15mm 3 Drain 15mm 3Tri core Heater Combined 3 x 3kw 3Motorised Valve 3 22mm 3 5 Bar Pressure Reducing Valve option 3 Alternative heat source Return Alternative heat source Flow 3Combination Valve 22mm Primary Coil Lower Immersion Heater Tapping Blanked No valves to be...

Страница 11: ...I M 4 n I d l o C r e d n i l y C 1 t u O t o H r e d n i l y C 1 w o l F g n i t a e H r e d n i l y C 1 n r u t e R g n i t a e H r e d n i l y C 1 1 1 e v l a V r e v e L e r o B l l u F m m 2 2 2 s p a T o t y l p p u S d l o C 1 s p a T o t y l p p u S t o H 1 2 1 e v l a V d e s i r o t o M 1 t r o P 2 3 1 n o i s n a p x E l 8 m e t s y S g n i t a e H t i K l e s s e V 1 e g u a G e r u s ...

Страница 12: ...heater is positioned about halfway up the cylinder so that it is only used to heat the water in the upper part of the cylinder The lower coil is heated by the chosen alternative heat source e g solar this will heat the water in the whole cylinder when energy is available resulting in optimum efficiency 1 4 3 System Control The Electrastream system is controlled by a purpose designed Electrastream ...

Страница 13: ... 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 4 9 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 packag...

Страница 14: ...to turn the switch off when hot water and heating are not required i e holidays etc 2 1 2 Electrastream Tri core Heater WARNING Unlike immersion heaters the Electrastream tri core heater does not have an internal thermostat therefore the cover should not need to be removed When the cover is removed live electrical terminals are exposed ISOLATE THE TRI CORE HEATER BEFORE REMOVING ITS COVER 2 1 3 Ov...

Страница 15: ... On and Off by the Electrastream control unit in response to the temperature within the cylinder as detected by the temperature sensor The elements have a staggered On sequence to prevent sudden loads see 1 5 Display icons Heat 1 Heat 2 and Heat 3 indicate that the elements are heating If either of the Heat icons are displaying an exclamation mark this indicates a fault with an element see 2 2 3 2...

Страница 16: ...rol Unit Display Normal Screen HEAT 1 Indicates Element 1 is ON HEAT 1 Indicates heater element has failed see 2 2 4 HEAT 2 Indicates Element 2 is ON HEAT 2 Indicates heater element has failed see 2 2 4 HEAT 3 Indicates Element 3 is ON HEAT 3 Indicates heater element has failed see 2 2 4 VALVE Indicates Heating Valve is OPEN PUMP Indicates Heating Pump is ON THERM Indicates Room Stat is calling fo...

Страница 17: ... settings are displayed for 10 seconds display then reverts back to normal screen Repeat pressing SET to index through settings NORMAL SCREEN 2 2 2 Display Time Settings Display only Indicates the total hours that each tri core heater element has been in operation For service engineers information only Fig 2 2b Electrastream Control Unit Display Settings Notes All times are given in 24 hour clock ...

Страница 18: ...ing switch see 2 1 1 2 Look at the three buttons button s that are protruding have tripped out 3 Press the button in if the button stays in when the power is turned on then trip has been reset However if the button pops out again a possible fault exists contact the installer The Electrastream will still operate with one or two elements working but this is not satisfactory and the installer must be...

Страница 19: ...d 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 O...

Страница 20: ...t on the installation fig 2 3a shows typical layout Fig 2 3a Typical Shut Off Valve Locations single coil shown INCOMING MAINS WATER COLD SUPPLY TO TAPS THERMOSTATIC MIXING VALVE COLD WATER SHUT OFF VALVE HOT WATER SHUT OFF VALVE WATER SOFTENER OPTION STOP COCK HOT SUPPLY TO TAPS PRV 6 Bar SUPPLY WATER SHUT OFF VALVE THERMOSTATIC SHOWER BYPASS IMPORTANT Before closing ANY valve switch OFF the Elec...

Страница 21: ...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 turn this prevents the valve sticking OPERA OPERA OPERA OPERA OPERATOR CONTROLS 2 TOR CONTROLS 2 TOR CONTROL...

Страница 22: ... 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...

Страница 23: ...c e l E p o t n i w t g n i t a R l i o C 8 2 7 1 W k 6 4 7 1 W k 0 0 2 W k r a l o s m o t t o b n i w t g n i t a R l i o C 0 7 2 W k e m u l o V m a e r t s a r t c e l E r e d n i l y C 0 3 1 e r t i l 0 5 1 e r t i l 1 1 8 e r t i l e m u l o V r a l o S r e d n i l y C 9 8 1 1 e r t i l e m i t t a e h e R m a e r t s a r t c e l E C 0 6 t s e t u n i m 0 5 s e t u n i m 8 5 s e t u n i m 8 ...

Страница 24: ... v t s e t a l o T r e v O o t t i n U l o r t n o C t u o t u c e r u t a r e p m e T e z i S e l b a C x e l f d n u o r e r o c 2 m m 5 7 0 Q T 3 8 1 3 T N A T S I S E R T A E H 0 0 5 6 S B f o n o i s r e v t s e t a l o T t i n U l o r t n o C m a e r t s a r t c e l E n I IMPORTANT Using incorrect cable size will invalidate warranty TECHNICAL INFORMA TECHNICAL INFORMA TECHNICAL INFORMA TECHN...

Страница 25: ... 32 5 32 5 CLEAR AREA REQUIRED FOR TRI CORE HEATER REMOVAL 510 x 200 COMPRESSION FITTINGS ARE SUPPLIED TO ADAPT THE CYLINDER TAPPINGS TO THE PIPE SIZES SHOWN Fig 3 2a Single Coil Cylinder Dimensions l e d o M r e d n i l y C y t i c a p a C l i o C e c a f r u S l i o C g n i t a R A B Ø C D t h g i e W y t p m E t h g i e W l l u F 0 3 1 L E B s e r t i l 0 3 1 m 7 6 0 W k 8 2 7 1 1 8 9 0 5 5 Ø 9...

Страница 26: ... 4 5 1 m m 8 7 g k 1 7 g k 1 2 2 R 0 3 1 P E B g n o L 0 3 1 s e r t i l 0 3 1 m m 2 9 6 1 m m 3 4 5 1 m m 8 2 3 g k 2 7 g k 7 9 1 CLEAR AREA REQUIRED FOR TRI CORE HEATER REMOVAL 510 x 200 CLEAR AREA REQUIRED FOR TPRV REMOVAL 250 x 100 HEATING RETURN 22mm HEATING FLOW 22mm WATER MAINS IN 22mm DHW CONNECTION 22mm EARTHING TERMINAL PIPES CAN PASS UNDER BETWEEN LEGS POWER IN 100mm MINIMUM ACCESS REQU...

Страница 27: ... plumbed Twin Coil BETP210 System Dimensions Fig 3 2c Twin Coil BETP210 Pre Plumbed Dimensions HEATING RETURN 22mm HEATING FLOW 22mm WATER MAINS IN 22mm DHW CONNECTION 22mm PIPES CAN PASS UNDER BETWEEN LEGS CLEAR AREA REQUIRED FOR TRI CORE HEATER REMOVAL 510 x 200 CLEAR AREA REQUIRED FOR TPRV REMOVAL 250 x 100 Weight Empty 172kg Weight Full 382kg ...

Страница 28: ...0 4 0 1 g k 4 0 3 g k 1 4 1 0 0 3 0 1 3 s e r t i l 8 9 1 o t p u m m 5 3 5 m m 0 0 5 1 m m 0 0 6 1 g k 5 4 4 g k 2 3 2 3 2 5 Electrastream Control Unit Dimensions Fig 3 2e Control Unit Dimensions W A T E R T E M P H EAT 1 H EAT 2 H EAT 3 H O T W ATER M O D E HEATING MODE T H E R M P U M P V A L V E SET UP DOWN BOOST ELECTRASTREAM CONTROL GAH HEATING PRODUCTS Ltd 01394 421160 24 c Boost Day hh mm ...

Страница 29: ...ue brown g y black blue brown g y blue brown g y blue brown g y blue brown g y CONTROL BOX TERMINAL blue brown g y g y g y LIVE 1 NEUTRAL 63amp RCD Cylinder Over Temp Cut Out Thermostat ELECTRASTREAM CONTROL UNIT 6242Y CABLE 10mm Twin Earth BS6004 16 AMP RESETTABLE THERMAL TRIP 16 AMP RESETTABLE THERMAL TRIP 40 amp MCB 3 3183TQ FLEXES 3 CORE x 2 5mm HEAT RESISTANT BS6500 3183TQ FLEX 2 CORE x 0 75m...

Страница 30: ...al Tariff at all other times NEUTRAL EARTH LIVE 2 Normal Tariff for all household circuits except Electrastream 3 POLE ISOLATOR LIVE Economy Tariff LIVE Normal Tariff NEUTRAL LIVE 1 LIVE 2 EARTH CHANGE OVER RELAY Fig 3 3b Typical Power Supply 3 3 2 Typical Power Supply Fig 3 3b shows a typical power supply for economy meters Consult electricity supply company for specific requirements 3 3 3 3 3 ...

Страница 31: ...ime of the installation installation installation installation installation All cables should be to the latest BS6004 specification All cables should be to the latest BS6004 specification All cables should be to the latest BS6004 specification All cables should be to the latest BS6004 specification All cables should be to the latest BS6004 specification All flexes should be to the latest BS6500 sp...

Страница 32: ...system The use of pipe insulation is recommended where contact between pipes and cables is possible When extending existing cables flying leads use suitable rated cables and ensure they are correctly jointed sleeved and covered 4 2 6 Tri core Heater The H1 H2 and H3 connections on the Electrastream control unit can be connected to any of the three heater elements however each element MUST be wired...

Страница 33: ...e Electrastream control system The Electrastream must not be switched on if the box is not fitted The unit consists of a temperature sensor and over temperature cut out device both are wired back to the Electrastream control unit see wiring diagrams figs 3 3a and 3 3b The box must be fitted to the cylinder with its phial and sensor inserted into the socket provided located above the tri core heate...

Страница 34: ...n when they are installed where low temperatures could be a potential problem see 1 4 7 Note that space is required to the top of the vessel to access the pressure valve Provision must be made to enable the accumulator to be drained when required IMPORTANT The accumulator is supplied at 2 Bar pressure It is recommended to set the pressure at 1 5 Bar below the mains pressure with a minimum of 0 8 B...

Страница 35: ... the green knob clockwise to close continue turning clockwise until it clicks 4 3 10 Thermostatic Mixing Valve A Thermostatic Mixing Valve is supplied with the Electrastream It should be fitted between the cylinder hot water outlet and the draw off taps The valve mixes hot water from the cylinder with cold water to provide hot water at the taps at a consistent temperature The valve is supplied wit...

Страница 36: ...linder It is not possible to fully drain the cylinder without using a hose 4 3 12 Secondary Return A secondary return may be fitted to unvented cylinders consult the label on the face of the unit for the correct location A non return valve must be fitted to prevent back flow and a bronze pump will be required in conjunction with a pipe thermostat and timer to circulate the hot water not supplied N...

Страница 37: ...ld fill pressure Set the red pointer to the cold fill pressure If the system pressure indicated by the black pointer falls below the cold fill pressure it means that the system requires topping up 4 4 3 Pump Electrastream is supplied with a standard 3 speed central heating circulating pump and isolating valves This should be fitted in the flow from the indirect cylinder before the bypass valve Nor...

Страница 38: ... 4 4a The PRV discharge must comply with Building Regulations G3 refer to pages 40 42 IMPORTANT Scalding water and steam can be emitted from the discharge pipe Position the discharge so there is no hazard to property or people especially children 4 4 6 Heating System Expansion Vessel red Maximum charge pressure 1 5 Bar Maximum working temperature 90 C Pre charge pressure 1 Bar Maximum working pres...

Страница 39: ...ylinder directly after the heating PRV take off and prior to any other take offs The valve is wired as shown in figs 3 3a and 3 3b The valve is normally closed to prevent gravity feed from the cylinder to the heating system when the pump starts the valve opens 4 4 9 Bypass not supplied An automatic bypass valve should be fitted between the flow and return of the heating system normally after the p...

Страница 40: ...peratur temperatur temperature r e r e r e r e relief valve elief valve elief valve elief valve elief valve 3 51 3 51 3 51 3 51 3 51 Where a manifold is used it should be sized to accept and discharge the total discharge from the discharge pipes connected to it 3 52 3 52 3 52 3 52 3 52 Where valves other than the temperatur temperatur temperatur temperatur temperature and pr e and pr e and pr e an...

Страница 41: ...u m 0 1 m 4 1 m 7 1 1 G m m 8 2 m m 5 3 m m 2 4 m m 4 5 m 9 o t p u m 8 1 o t p u m 7 2 o t p u m 4 1 m 7 1 m 3 2 Table 1 Sizing of copper dischar Sizing of copper dischar Sizing of copper dischar Sizing of copper dischar Sizing of copper discharge pipe D2 for common temperatur ge pipe D2 for common temperatur ge pipe D2 for common temperatur ge pipe D2 for common temperatur ge pipe D2 for common ...

Страница 42: ...D2 METAL FROM TUNDISH To comply with Building Regulations G3 see section 4 5 TPR VALVE COMBINATION VALVE 15mm 500 max PR VALVE Fig 4 5b Typical GAH Expansion Discharge Arrangement 4 5 4 GAH Expansion Discharge 3 58 3 58 3 58 3 58 3 58 Where a single common discharge pipe serves more than one system it should be at least one pipe size larger than the largest individual discharge pipe D2 to be conne...

Страница 43: ...ns pressure however if the mains pressure is more or fluctuates above 4 Bar a Mains Pressure Reducing Valve should be considered 2 The Combination Valve has an integral pressure reducing valve fixed at 3 5 Bar therefore the hot water System Pressure will be 3 5 Bar maximum 3 If the Mains Pressure is less than 3 5 Bar then the hot water System Pressure will be at maximum Mains Pressure 4 The Combin...

Страница 44: ...ver Valve supplied Mains Supply 22mm 22mm x BSP M I Coupler supplied Tundish Discharge to be arranged and sized to comply with Building Regulations G3 Boiler Flow 22mm 22 x M I Coupler supplied Boiler Return 22mm 22 x M I Coupler supplied 4 7 1 Connections to Electrastream BEL130 and BEL150 Single Coil Cylinders MI COUPLER x 22 x DOMESTIC COLD WATER 22mm TUNDISH 22mm LEVER VALVE 22mm LEVER VALVE T...

Страница 45: ...ORE HEATER ACCUMULATOR CONNECTION MI COUPLER x 22 x 1 ACCUMULATOR Domestic Hot Water 22mm 22 x M I Coupler supplied Fit 22mm Lever Valve supplied Accumulator Connection 22mm 22 x 1 M I Coupler supplied Domestic Cold Water 22mm Fit 22mm Lever Valve supplied Mains Supply 22mm 22mm x M I Coupler supplied Tundish Discharge to be arranged and sized to comply with Building Regulations Boiler Flow 22mm 2...

Страница 46: ...ING CIRCULATING PUMP VALVES HOT WATER EXPANSION VESSEL 8L THERMOSTATIC MIXING VALVE FOR DHW COLD MAINS IN CONNECTION 22mm HOT WATER PRV 6 Bar CONSUMER UNIT C W DP ISOLATOR RCD MCB ELECTRASTREAM CONTROL UNIT TEMPERATURE PROBE CABLE OVER TEMPERATURE CUT OUT CABLE FRAME SUPPORT FRAME 4 7 3 Connections to Electrastream Pre Piped Fig 4 7c Electrastream Pre Piped Connections TUNDISH DISCHARGE TO BE ARRA...

Страница 47: ...S ARE CORRECTL VERS ARE CORRECTL VERS ARE CORRECTLY FITTED Y FITTED Y FITTED Y FITTED Y FITTED 1 3 Check Tundish is positioned so that any spillage or spray from the Tundish would not contact any electrical components 1 4 Check ALL wiring connections have been made Check cylinder temperature sensor is connected to temp sensor terminals 3 4 Check cylinder over temperature cut out is connected to O ...

Страница 48: ...uge red arrow to the black arrow cold fill pressure 1 Bar STAGE 8 SETTING AND TESTING CONTROLS 8 1 Switch on Electrastream mains isolator On Electrastream Control Unit see 2 2 8 2 Set date and time 8 3 Set times to suit economy tariff 8 4 Set target temperature to 65 C step 8 on 2 2b 8 5 If heating hot water is not On press Boost and set room thermostat for heat 8 6 Wait for the cylinder and heati...

Страница 49: ... pressure Minimum Accumulator pressure is 0 8 Bar STAGE 10 HANDING OVER 10 1 Complete the Guarantee Form the top sheet of this MUST be sent to GAH HEATING PRODUCTS LIMITED or the Electrastream can be registered on line at www gah co uk 10 2 Complete the Benchmark Logbook 10 3 The Installer should re check the system and ensure it is completely satisfactory before demonstrating to the end user 10 4...

Страница 50: ...not shut off replace valve 11 Open heating TPRV momentarily and close valve should shut off Repeat if valve sticks If valve will not shut off replace valve 12 Close the Stop Cock 13 Open the hot and cold taps attach a hose to the cylinder drain cocks and empty the system 14 Remove tri core heater remove limescale and examine the element and seal Refit if in good condition In hard water areas it is...

Страница 51: ...ration 1 Heat cylinder 2 Observe the Control Unit and wait for the actual temperature C to reach the set target C 65 3 When set target C is reached Heat 1 Heat 2 and Heat 3 will indicate all elements are off not displayed 4 If a continued rise is observed when Heat 1 Heat 2 and Heat 3 show that all elements are OFF it indicates that the relay on the Control Unit needs replacing Consult GAH HEATING...

Страница 52: ...n the unfortunate event of a water leak from the Electrastream cylinder TURN OFF ELECTRIC SUPPLY then turn off the mains water supply to the house via the stop cock Make allowance to store some cold water for necessities Open both cold and hot taps to drain the cylinders of water thus preventing any further leaks and consult your installer Check all isolation valves are fully open Check in line st...

Страница 53: ...for back feed of high mains pressure from expansion valve The heating system should not be run with all the radiators turned off unless there is a bypass valve in the system see figs 1 2a and 1 2b Check for air in the heating system Check that the cylinder temperature sensor has not been dislodged from the phial in the cylinder With the heating elements and heating pump turned OFF check for error ...

Страница 54: ...54 Notes ...

Страница 55: ...55 ...

Страница 56: ...56 GAH Heating Products Ltd Building 846 Bentwaters Parks Rendlesham Woodbridge Suffolk IP12 2TW www gah co uk Tel 01394 421160 Fax 01394 421170 email mail gah co uk heating products ...

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