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11

 

INSTALLATION - INDIRECT UNITS

PLUMBING CONNECTIONS

POTTERTON GOLD indirect cylinders require the 

following

pipework connections.

• 

Cold water supply to and from inlet controls.

• 

Outlet to hot water draw off points. 

• 

Discharge pipework from valve outlets to

  

tundish

• 

Connection to the primary circuit.

All connections are 22mm compression. However, 

3/4”BSP parallel threaded fittings can be fitted to 

the primary coil connections if required.

ELECTRICAL SU

PPLY ( FIG. 7 Page 10 )

All units are fitted with a 3kW immersion heater 

and a combined thermostat and thermal cut-out to 

control the indirect heating source. 

The POTTERTON 

GOLD cylinder MUST be earthed.

 

All wiring to the unit must be installed in  accordance 

with  the  latest  IEE Wiring  Regulations  and  the 

supply circuits must be protected by a suitable fuse 

and double pole isolating switch with a contact 

separation  of  at  least  3mm  in  both  poles.  All 

connections are made to the terminal block located 

under the terminal cover mounted on the side of the 

unit. The supply cable(s) must be routed through the 

cable grip(s) in the terminal housing.

DISCONNECT  FROM  MAINS  SUPPLY  BEFORE 

REMOVING ANY COVERS. DO NOT

 

BYPASS THE 

THERMAL CUT-OUTS IN ANY CIRCUMSTANCES.

 

Ensure the thermostat and thermal cut-out sensing 

bulbs  are  pushed  fully  into  the  pockets  on  the 

element plate assembly.

 

BOILER SELECTION

The boiler should have a control thermostat and non 

self-resetting thermal cut-out and be compatible 

with unvented storage water heaters.

Where use of a boiler without a thermal cut-out 

is unavoidable a “low head” open vented primary 

circuit  should  be  used. The  feed  and  expansion 

cistern head above the POTTERTON GOLD cylinder 

should not exceed 2.5m.

PRIMARY CIRCUIT CONTROL

The 2 port motorised valve supplied with the

POTTERTON GOLD cylinder MUST be fitted on the 

primary  flow  to  the  POTTERTON  GOLD  cylinder 

heat exchanger and wired in series with the indirect 

thermostat and thermal cut-out fitted to the unit.

Primary  circulation  to  the  POTTERTON  GOLD 

cylinder heat exchanger must be pumped;  gravity 

circulation 

WILL NOT WORK

.

SPACE AND HEATING SYSTEMS CONTROLS

The controls provided with the POTTERTON GOLD 

cylinder will ensure the safe operation of the unit 

within the central heating system. Other controls 

will  be  necessary  to  control  the  space  heating 

requirements and times that the system is required 

to function. (See Fig. 7 Page 10)

The  POTTERTON  GOLD  cylinder  is  compatible 

with most 

heating controls, examples of electrical 

circuits  are  shown  in  Figs.  8  and  9  (  Page  12  ). 

However, other systems may be suitable, refer to 

the controls manufacturers’ instructions, supplied 

with the controls selected, for alternative system 

wiring schemes.

Summary of Contents for Gold H Range

Page 1: ...he unit should be stored in an upright position in an area free from excessive damp or humidity This appliance complies with the requirements of the CE marking directive and is Kiwa approved to show compliance with Building Regulations Section G3 The following instructions are offered as a guide to installation which must be carried out by a competent plumbing and electrical installer in accordanc...

Page 2: ...LLATION GENERAL 4 INSTALLATION 10 COMMISSIONING 13 MAINTENANCE 14 USER INSTRUCTIONS 15 FAULT FINDING AND SERVICING 16 HEAT LOSS 18 ENVIRONMENTAL INFORMATION 18 COMMISSIONING CHECK LIST 19 SERVICE RECORD 20 GUARANTEE 21 TECHNICAL SUPPORT AND SPARES 24 PAGE ...

Page 3: ...t these values outlet flow rates may be poor if several outlets are used simultaneously Thehighertheavailablepressure and flow rate the better the system performance The POTTERTON GOLD cylinder has an operating pressure of 3 5 bar which is controlled by the cold water combination valve assembly The cold water combination valve assembly can be connected to a maximum mains pressure of 16 bar OUTLET ...

Page 4: ...re 3 5 bar Expansion vessel charge pressure 3 5 bar Expansion relief valve setting 6 bar T P relief valve setting 90 C 10 bar Maximum primary circuit pressure 3 bar indirect only Storage capacity See Table1 Weight when full See Table1 LIMITATIONS The POTTERTON GOLD cylinder should not be used in association with any of the following Solid fuel boilers or any other boiler in which the energy input ...

Page 5: ...of 15mm pipe to terminal fittings such as sinks and basins Pipe sizes may vary due to system design increaseinsystemwatercontent itmaybenecessary tofitanadditionalexpansionvesseltothesecondary circuit This should be done if the capacity of the secondary circuit exceeds 10 litres Pipe capacity copper 15mm O D 0 13 l m 10 litres 77m 22mm O D 0 38 l m 10 litres 26m 28mm O D 0 55 l m 10 litres 18m ...

Page 6: ...NAL CAPACITY litres A B C D RATING kW RECOVERY mins HEATING TIME DIRECT mins 100 120 120 150 315 364 615 906 364 800 1090 315 364 925 1216 364 1184 1474 12 5 23 89 100 364 493 784 89 110 110 142 142 163 1731 2045 1378 1693 364 364 315 150 170 HEAT UP TIME mins 27 210 210 250 250 364 615 906 315 364 800 1090 364 925 1216 315 364 1184 1474 12 5 24 16 0 29 205 170 315 364 493 784 11 2 20 163 205 252 ...

Page 7: ...e than 600mm of pipe between the valve outlet and the tundish see Diagram 1 Note To comply with the Water Supply Water Fittings Regulations the tundish should incorporate a suitable air gap 3 55 Any discharge should be visible at the tundish In addition where discharges from safety devices may not be apparent e g in dwellings occupied by people with impaired vision or mobility consideration should...

Page 8: ...a discharge pipe D2 having 4 No elbows and length of 7m from the tundish to the point of discharge From Table 3 Maximum resistance allowed for a straight length of 22mm copper discharge pipe D2 from a G1 2 temperature relief valve is 9 0m Subtract the resistance for 4 No 22mm elbows at 0 8m each 3 2m Therefore the permitted length equates to 5 8m 5 8m is less than the actual length of 7m therefore...

Page 9: ... and worked example 300mm minimum 600mm maximum Metal discharge pipe D1 from Temperature relief valve to tundish Tundish Safety device e g Temperature relief valve Fig 6 Typical installation schematic EXPANSION VESSEL T P RELIEF VALVE TO HOT OUTLETS MAINS WATER SUPPLY ISOLATING VALVE NOT SUPPLIED TUNDISH DISCHARGE PIPE DRAIN COCK NOT SUPPLIED PRIMARY RETURN PRIMARY FLOW ELEMENT CONTROLS HOUSING IN...

Page 10: ...0730 The POTTERTON GOLD MUST be earthed Allwiringtotheunitmustbeinstalledin accordance with the latest IEEWiring Regulations and the circuit must be protected by a suitable fuse and double pole isolating switch with a contact separation of at least 3mm in both poles The live and neutral connections are made directly onto the combined thermostat and thermal cut out located under the terminal cover ...

Page 11: ...ing bulbs are pushed fully into the pockets on the element plate assembly BOILER SELECTION Theboilershouldhaveacontrolthermostatandnon self resetting thermal cut out and be compatible with unvented storage water heaters Where use of a boiler without a thermal cut out is unavoidable a low head open vented primary circuit should be used The feed and expansion cistern head above the POTTERTON GOLD cy...

Page 12: ...12 Fig 8 Schematic wiring diagram Basic 2 x 2 port valve system Fig 9 Schematic wiring diagram 3 port mid position valve system N B Must be used in conjunction with 2 port zone valve supplied ...

Page 13: ...emperature can be adjusted by inserting a flat bladedscrewdriverintheadjustmentknobontopof the immersion heater thermostat and rotating The adjustment range 1 to 5 represents a temperature range of 10o to 70o C Check the operation of thermostat s and that no water has issued from the expansion relief valve or temperature pressure relief valve during the heating cycle Fig 10 Indirect thermostat and...

Page 14: ...0o to 70o C Check the operation of thermostat s and that no water has issued from the expansion relief valve or temperature pressure relief valve during the heating cycle INDIRECT UNITS Openthecover s totheimmersionheaterhousing s and disconnect wiring from immersion heater s thermostat s Removethermostatbycarefullypulling outwards Removethermostatcapillarysensorsfrom the pockets on the immersion ...

Page 15: ...S IMMER SION HEATER S A combined adjustable thermostat and thermal cut out is provided for each immersion heater The thermostat is factory set to give a water storage temperature of approx 55o to 60o C Access to the thermostat can be made by opening the immer sion heater cover DISCONNECT THE ELECTRICAL SUPPLY BEFORE OPENING THE COVER S Tempera ture adjustment is made by inserting a flat bladed scr...

Page 16: ...equipment covers NEVER bypass any thermal controls or operate system without the necessary safety valves Water contained in the POTTERTON GOLD cylinder may be very hot especially following a thermal control failure Caution must be taken when drawing water from the unit SPARE PARTS A full range of spare parts are available for the POTTERTON GOLD cylinder range SeeTable 4 Page 17 Refer to the techni...

Page 17: ...e ra ture Pre ssure R e lie f Va lv e 95 6 0 5 8 10 Ex pa nsio n v e sse l 1 2 litre 1 0 0 12 0 a nd 1 5 0 litre mo de ls 95 6 0 7 8 63 Ex pa nsio n v e sse l 1 8 litre 1 7 0 a nd 2 1 0 litre mo de ls 95 6 0 7 8 64 Ex pa nsio n v e sse l 2 4 litre 2 5 0 a nd 3 0 0 litre mo de ls 95 6 0 7 6 12 C o mbine d the rmo sta t a nd the rma l cut o ut 95 6 1 2 0 26 Te rmina l co v e r 95 6 1 4 0 94 A cce ss...

Page 18: ...e 4 INDIRE CT boiler not work ing 4 Chec k boiler operation If fault is s us pec ted c ons ult boiler m anufac turer s ins truc tions 5 INDIRE CT therm al c ut out has operated 5 Chec k Res et by pus hing button on c ut out Fig 10 Page 13 Chec k operation of indirec t therm os tat 6 INDIRE CT m otoris ed valve not c onnec ted c orrec tly 6 Chec k wiring and or plum bing connections to m otoris ed ...

Page 19: ...19 ...

Page 20: ...20 ...

Page 21: ...e of installation The Benchmark Checklist has been completed upon commissioning and the Benchmark Service Record is completed for each service It has not been modified in any way other than by POTTERTON GOLD It has not been frost damaged It has only been used for the storage of potable water It has not been tampered with or been subjected to misuse or neglect The fault is not scale related Within6...

Page 22: ...22 NOTES ...

Page 23: ...23 NOTES ...

Page 24: ... we reserve the right to change specifications and guarantee terms and conditions without notice For all technical support and replacement parts issues please contact POTTERTON GOLD Brooks House Coventry Road Warwick CV34 4LL Tel 0844 871 1532 36006077 Issue 04 TECHNICAL SUPPORT SPARES ...

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