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Page 42

Page 43

SERVICING AND MAINTENANCE

FAULT FINDING

The Torrent GreenHeat printed circuit control board/display has been designed to be

fully automatic whilst able to provide functional and diagnostic information to the

householder/installer.

The board works in conjunction with a number of sensors (thermistors) located as

shown in the diagram below.

Automatic Control Operation

The hot water temperature is controlled by sensors on the cold mains pipe to the plate

heat exchanger and the domestic hot water outlet from the plate heat exchanger.

The cold mains sensor checks for a drop in temperature every second and if the drop

is more than 2ºC, it switches on the hot water pump to raise the domestic hot water

temperature to 52ºC (± 2°C).

The control of the hot water temperature is carried out by sensor on the domestic

hot water outlet, adjusting the speed of the hot water pump.

The pump is stopped once the cold feed sensor reaches a temperature of above 30°C.

The following checks should be carried out by the installer before calling the manufacturer.

Noise When Hot Water Tap Is Opened/closed

If the plate heat exchanger pump is noisy when the hot water tap is opened, then

check the level of water in the F & E cistern and vent the pump if necessary.

Water hammer - loose pipework and/or tap washers and/or washing machine valves.

Causes of ‘Unsatisfactory Hot Water Service’

See table opposite.

Overflow from Feed and Expansion Cistern

Check

that the controlled level of water in the cistern is at the correct level. Adjust if

required and check the ballvalve is shutting off the water supply.

Fault Condition

Possible Causes

DHW temperature

remains cold

exiting the taps.

- Thermal store is cold/DHW

pump is permanently stuck

- Temperature sensor or

printed circuit control

board is faulty.

- The water level is low in the

F&E Cistern

DHW temperature

fluctuates wildly

when flow is

steady

- DHW pump keeps sticking

intermittently

- Hot & cold crossed at

appliance.

DHW temperature

exceeds and

remains well above

60°C when the

flow rate is low.

- DHW printed circuit control

board and/or temperature

sensor is/are faulty.

- Thermostats set to high see

pages 23 and 38 for details.

Store not heating

- Other heat sources failed

- Incorrect plumbing

arrangement

- No power supplies/fuses

are blown.

- Overheat stat has tripped.

- One or both immersion

heaters have failed.

APPLIANCE CONTROL BOARD (A.C.B)

Fuse T3.15L

250V

2 DIGIT ACB BOARD DISPLAY FLOW CHART

Press S2

S2 S1

Press

Fault code indicator

block outs

Press

Fault code indicator

lock outs

Press

Control set-point

reading

Press

Sensor temperature

reading

Normal - standby state

Indicate system status

2 digit

display

2 push

buttons

Main

processor

Appliance Control Board

The appliance control board (shown above) has a 2 digit display and 2 push buttons

which are used to check the status of the appliance, check and set its identity and

interrogate it for the current faults and the fault history.

The 2 digit display is controlled by 2 buttons S1 and S2. The flow chart of display

modes is shown above. Generally, each press of button S2 cycles the display from top

to bottom and each press of button S1 cycles the display functions from left to right.

The button S2 is also used to reset the appliance i.e. clear the lockout errors and reset

the appliance.

If S1 is flashing on its own, the system is running normal.

If a sensor error is detected one of the following three error codes flash alternately

with the sensor number instead of the temperature

E1 Open circuit

E2 Short circuit

E3 Temperature greater than 99°C

A code of FF indicates the fault location is empty.

Display in Normal (Standby) Mode

In the standard/normal mode the 2 digit display

indicates the status of the appliance inputs

and outputs by switching on the appropriate

segments of the display.

Cold Water
Sensor

Hot Water
Sensor

Domestic Hot Water
Store Sensor

Содержание Torrent GreenHeat HP TGH170

Страница 1: ...al Torrent GreenHeat OV TGH140 TGH350 Torrent GreenHeat SP TGH140 TGH350 Torrent GreenHeat SOL TGH210 TGH450 Torrent GreenHeat HP TGH170 TGH450 Torrent GreenHeat HPSOL TGH210 TGH450 Torrent GreenHeat Open vented thermal store providing heating and mains pressure hot water ...

Страница 2: ...n updated set of Instructions will be produced and supplied with new appliances and will be made available for other appliances on request Benchmark places responsibilities on both manufacturers and installers The purpose is to ensure that customers are provided with the correct equipment for their needs that it is installed commissioned and serviced in accordance with the manufacturers instructio...

Страница 3: ...he volume of stagnent water in the heat exchanger is very small so there is virtually no legionella risk shouldbemadetopowerthelowerimmersionelementinordertominimisetherunning costs It is important to note that the design heat loss of the rooms to be heated must be less than the lowest immersion power If the design heat loss is greater than this the heating will need to be supplemented by another ...

Страница 4: ... 155 n a 95 95 n a n a n a 195 1040 1115 1 38 n a 134 1 81 n a 35 TGH170 SP 44 207 170 1449 535 720 n a 1270 1270 690 n a 650 570 322 470 145 n a 135 90 n a 385 n a 95 95 n a n a n a 195 1270 1345 1 38 n a 163 2 03 n a 35 TGH210 SP 47 248 210 1414 585 680 n a 1235 1235 685 n a 645 555 412 455 145 n a 125 90 n a 345 n a 95 95 n a n a n a 195 1235 1310 1 84 n a 201 2 30 n a 35 TGH250 SP 49 288 250 1...

Страница 5: ...GH350 HP 43 282 350 1874 630 1140 n a 1690 1690 900 355 215 300 430 515 615 n a 130 95 805 n a 100 100 385 100 615 385 100 n a n a 200 1690 1770 n a 339 3 14 n a 15 TGH450 HP 53 388 450 1764 730 935 n a 1490 1490 880 390 310 395 510 595 630 n a 270 40 600 n a 270 270 420 270 630 420 270 n a n a 370 1490 1785 n a 431 3 67 n a 15 Torrent GreenHeat HP SOL TGH210 HPSOL 49 250 210 1414 580 680 920 1235...

Страница 6: ...Solarcoilflow 22mmcomp 450 28mmcomp 19 Cold feed 15mm comp 20 Solar sensor 21 Solarcoilreturn 22mmcomp 450 28mmcomp 22 Plate heat exchanger return 22mm 23 Solid fuel return 2 28mm comp 24 Drain 1 2 female Component kit supplied attached A Thermostat B Immersion heater Optional extra components A Header tank B Ball valve C Float D Overheat thermostat E Solid fuel tappings F Sealed primary boiler co...

Страница 7: ...imary circuit pressures e g it is not fitted with a non adjustable low system pressure switch The heat pumps normally operate at lower temperature difference 5 10 C betweenflowandreturnthanthatforagasboilers 10 20 C resultinginhigherflow rates in the heat pump primary circuit Therefore it is important that the primary pipeworkconnectingtheheatpumptothethermalstoreandthecirculatingpump are sized to...

Страница 8: ...ferred range is between 2 and 3 0 bar If the incoming static mains pressure exceeds 5 0 bar at any point in the 24 hour cycle then a pressure limiting valve set at 3 0 bar should be fitted downstream of the stop tap where the cold supply enters the dwelling If a water meter is fitted in the service pipe it should have nominal rating to match the anticipated maximum simultaneous hot and coldwater d...

Страница 9: ...ing scale protection should be complied with These requirements state that where the mains water hardness exceeds 200ppm provision should be made to treat the feed water to the water heaters and the hot INSTALLATION INSTALLATION INSTALLATION INSTALLATION Thermostat Immersion Heater Wiring E L N water circuit of combination boilers to reduce the rate of accumulation of scale To comply with this req...

Страница 10: ...ge In this case no bypass valve is required unless TRV s are used on all radiators If the flow and return pipes between the boiler and the Torrent OV thermal store are dipped as illustrated in the schematic shown opposite then the boiler selected must be suitable for a sealed heating system i e it must be fitted with an overheat thermostat Automatic air vents should be fitted at appropriate places...

Страница 11: ...se refer to page 20 for further information Where a sealed primary coil is used the thermal store is a hot water only thermal store If too much heat is taken out of store then hot water performancewillbelimited Thehotwaterpriority should be protected by use of an appropriate thermostat Heating can be taken from the SP thermal store to provide auxilliary heating to towel radiators which are low out...

Страница 12: ...ch does not require a minimum pressure in the primarycircuitforoperation Thespaceheating can be supplied directly from the heat pump circuit or from the thermal store The selection between the two options will depend upon the operating characteristics of the heat pump type of heating system and control strategy For general guidance If the heat pump requires a buffer for operation for example to re...

Страница 13: ...eated The overheat thermostat should be set at a temperature which operates before or at 85 C Please see page 23 for further information A solid fuel boiler can also be connected to the Torrent GreenHeat SOL please refer to page 20 for further information Solar heating circuit The Torrent SOL is an advanced thermal store and has been designed to incorporate existing boiler and central heating cont...

Страница 14: ... Typical components not supplied but available to purchase from Gledhill Spares Ltd 1 x Honeywell V4043B1265 28mm compression normally open 2 port valve 1 x Honeywell V4043H1106 28mm compression normally closed 2 port valve 1 x Honeywell L641B1012 High limit pipe thermostat 1 x XC010 control thermostat When the boiler is lit the water temperature raises When the temperature is above INSTALLATION I...

Страница 15: ...ovided by a temperature sensor S3 which is wired directly to the solar controller same as sensors S1 and S2 In this case the mechanical overheat thermostat S3 shown in this diagram is not required and the solar pump is wired straight to the solar controller Temperature range 50 95 o C Boiler hold off pipe thermostat Type LL641B1012 Thermal store temperature max 85 C more typically 75 77 C Installe...

Страница 16: ...tection is provided by a temperature sensor S3 which is wired directly to the solar controller same as sensors S1 and S2 In this case the mechanical overheat thermostat S3 shown in this diagram is not required and the solar pump is wired straight to the solar controller Normally Closed 2 Port Valve Normally Open 2 Port Valve E E L N N SL PL ML Control Stat 2 1 C 2 Pipe Thermostat 1 1 C 2 on off on...

Страница 17: ...d as shown in figure 4 4 to protect the store from over heating by stopping the solar Pump at pre set temperature limit S1 S2 S3 E N R1 N R1 N L 1 2 3 4 5 6 7 8 12 13 14 15 16 17 18 19 20 Solar controller N L E 1 2 3 Normally Closed 2 Port Valve Normally Open 2 Port Valve E E L N N SL PL ML Control Stat 2 1 C 2 Pipe Thermostat 1 1 C 2 on off on off Temperature range 50 95 o C Boiler hold off pipe ...

Страница 18: ...ematic wiring diagram for the Torrent GreenHeat HP and Torrent GreenHeat HP solar with space heating supplied directly from the heat pump circuit Typical schematic wiring diagram for the Torrent GreenHeat HP and Torrent GreenHeat HP solar with space heating supplied from thermal store ...

Страница 19: ...eater so that the store can be heated to a temperature above the heat pump delivery temperature to increase the hot water performance of the unit if necessary Because the TorrentHP is a primary thermal store it is not necessary to heat the store above 60 C for hygienic protection against growth of legionella This is because the domestic hot water is heated instantaneously via a heat exchanger and ...

Страница 20: ...the inside back pages of this document Electrician Installer Please note that water at the hot tap does not indicate that the Torrentisfull Checkthatthereiswaterinthefeedandexpansiontankbeforeswitching on the immersion heaters Dry firing the elements will cause premature failure which is not covered by our warranty Non Electric Torrent Models Opentheincomingstopvalveandfillthedomestichotwatersyste...

Страница 21: ...ap Is the circuit correctly sized Fit an air vent Is the temp rise now satisfactory Investigate for blockage Is air trapped in the primary circuit Annual Servicing No annual servicing of the Torrent GreenHeat is necessary However if required a hot water performance test can be carried out to prove the appliance is working satisfactorily and within its specification If it is decided to carry out th...

Страница 22: ... keeps sticking intermittently Hot cold crossed at appliance DHW temperature exceeds and remains well above 60 C when the flow rate is low DHW printed circuit control board and or temperature sensor is are faulty Thermostats set to high see pages 23 and 38 for details Store not heating Other heat sources failed Incorrect plumbing arrangement No power supplies fuses are blown Overheat stat has trip...

Страница 23: ... constant flow rates by automatically compensating for supply pressure changes between 1 bar 10 bars To facilitate installation into the wide range of plumbing equipment which is encountered in the U K Four Fixing Options are available Options For Showers 1 MXF DW Range For fitting behind Fixed Shower Heads or onto Flexible Hoses for Handshowers preferably onto the inlet end when lightweight hoses...

Страница 24: ... Before lifting ensure you have a good hold e Taking the lead for team lifts As more than one person is required for these products ensure that one person is taking the lead This may be you so ensure that each person that is helping is made aware of the weight and of the items listed within this assessment Make sure you and any others helping know the route you intend to take that it is clear of a...

Страница 25: ... development and may introduce product modifications from time to time Gledhill Building Products Ltd AMD DECEMBER 2013 CONDITIONS OF SALE GUARANTEE TERMS 1 Gledhill Building Products Ltd We or Gledhills only do business upon the Conditions which appear below and no other Unless we so agree in writing these Conditions shall apply in full to any supply of goods by us to the exclusion of any Conditi...

Страница 26: ...mpany name Telephone No Comments Signature SERVICE 05 Date Engineer name Company name Telephone No Comments Signature SERVICE 07 Date Engineer name Company name Telephone No Comments Signature SERVICE 09 Date Engineer name Company name Telephone No Comments Signature SERVICE 02 Date Engineer name Company name Telephone No Comments Signature SERVICE 04 Date Engineer name Company name Telephone No C...

Страница 27: ... services including Low cost annual repair and maintenance contracts direct from Gledhill Annual servicing and safety checks Expert response to out of warranty breakdowns at fixed charges Please call 08445 679898 or visit www gledhill net for further details Only the best is acceptable FM 02057 To protect our environment we use copper a totally recyclable metal which never becomes waste Gledhill B...

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