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9

Electric shower

Table B

Note: 

Cable selection is dependent on 

derating factors

Twin and earth PVC insulated cable

Current carrying capacity

In conduit

trunking

6mm²

38A

10mm²

52A

16mm²

69A

Installed in an 

insulated wall

6mm²

32A

10mm²

43A

16mm²

57A

Clipped direct

or buried in a 
non-insulated 

wall

6mm²

46A

10mm²

63A

16mm²

85A

6mm2

10mm2

16mm2

*The method below may be used by

installers to determine the approximate 

size of the incoming cable.

1.

Measure the width of an individual strand,
and half that measurment to find 

(r)

,

e.g: 

1.34mm ÷ 2 = (r) 0.67mm

2.

Multiply 

(r) x (r)

 x 

3.14,

e.g: 

(r)

 

0.67 x (r)

 

0.67 

3.14 = 1.41mm2

3.

Multiply this by the number of wire strands
(usually 7), e.g: 

1.41mm2 x 7 = 9.87mm2.

4.

The number obtained would suggest

10mm2

 wiring.

*PLEASE NOTE:

 If unsure, consult a qualified Electrician.

6

 

A 45 amp double pole isolating switch with 
a minimum contact gap of 3mm in both 
poles must be incorporated in the circuit.

6.1

  It must have a mechanical indicator showing 

when the switch is in the OFF position, and 
the wiring must be connected to the switch 
without the use of a plug or socket outlet.

6.2

 The switch must be accessible and clearly 

able, but out of reach of a person 

u

xed bath or shower, except for the

cord of a cord operated switch, and should
be placed so that it is not possible to touch
the switch body while standing in a bath or
shower cubicle. It should be readily accessible
to switch off after using the shower.

7

 

Where shower cubicles are located in any 
rooms other than bathrooms, all socket 
outlets in those rooms must be protected by 
a 30mA RCD.

8

 

The current carrying capacity of the cable 
must be at least that of the shower circuit 
protection 

(see Table B)

.

8.1

  To obtain full advantage of the power 

provided by the shower, use the shortest 
cable route possible from the consumer unit 
to the shower.

8.2

  It is also necessary to satisfy the disconnection 

time and thermal constraints which means 
that for any given combination of current 
demand, voltage drop and cable size, there is 
a maximum permissible circuit length.

9

 

The shower circuit should be separated from 
other circuits by at least twice the diameter 
of the cable or conduit.

9.1

  The current rating will be reduced if the 

cabling is bunched with others, surrounded 
by thermal loft or wall insulation or placed 
in areas where the ambient temperature 
is above 30°C. Under these conditions, 
derating factors apply and it is necessary to 
select a larger cable size.

9.2

  In the majority of installations 

(see 

Table B)

, the cable will unavoidably be 

placed in one or more of the above 
conditions. This being so, it is strongly 
recommended to use a minimum of 10mm 
cabling throughout the shower installation.

9.3

  In any event, it is essential that individual 

site conditions are assessed by a competent 
electrician in order to determine the correct 
cable size and permissible circuit length.

Summary of Contents for NOVA Thermostatic Series

Page 1: ...hed off at the isolating switch when not in use This is a safety procedure recommended for all electrical appliances The shower head and hose supplied with this product are a safety critical part of your shower Failure to use genuine Triton parts may cause injury and invalidate your guarantee FOR YOUR SERVICE REFERENCE NOTE DOWN THE PRODUCT CODE BELOW FROM THE FRONT OR TOP OF THE BOX ALTERNATIVELY...

Page 2: ...ap or fitting other than those specified This appliance is intended to be permanently connected to the water mains and not connected by a hose set A suitable double pole isolation switch for supply disconnections must be incorporated in the fixed wiring circuit in accordance with current wiring rules See Electrical Installation section for further details Mains water pressure only Minimum inlet pr...

Page 3: ...lding Regulations or any particular regulations as specified by Local Water Company or Water Undertakers and should be in accordance with BS EN 806 2 2 The supply pipe must be flushed to clear debris before connecting to the shower unit 2 3 DO NOT solder pipes or fittings within 300mm of the shower unit as heat can transfer along the pipework and damage components 2 4 DO NOT fit any form of outlet...

Page 4: ...ower is in use If pressure drops appreciably below the minimum the heating elements will automatically cut out NOTE If ever the water becomes too hot and you cannot obtain cooler water first check that the sprayplate in the shower head has not become blocked DO NOT place items such as soap or shampoo bottles on top of the unit Liquid could seep through the joint between the cover and backplate ADV...

Page 5: ...allation 13 Fit to the wall connect shower supplies 13 14 Electrical installation 15 Fitting the cover 16 17 COMMISSIONING PROCEDURE 18 USER OPERATING INSTRUCTIONS FUNCTIONS 19 21 Cleaning the filter installers service engineers only 22 Fault finding Troubleshooting 23 24 Spare parts 25 UK Service Policy UK Guarantee Rear cover PRODUCT FICHE Model 8 5kW 9 5kW Load Profile XS XS Energy Efficiency C...

Page 6: ...10 5kW Maximum static pressure 1000 kPa 10 bar Maximum inlet temperature 25 C Minimum inlet temperature 5 C Inlet connection 15mm diameter Outlet connection BSP male thread MATERIALS ABS Backplate cover controls shower head Acetal Sprayplate Minerally insulated corrosion resistant metal sheathing Elements STANDARDS and APPROVALS Splashproof rating IPX4 Safety Complies with the requirements of curr...

Page 7: ...approved entry points will invalidate product specifications and warranty Fig 2 Fig 1 ENTRY POINTS DIMENSIONS WATER Left Bottom Back Top Side Right Bottom Back Side CABLE Left Bottom Back Top Right Bottom Back Back Back Others Others 346mm 225mm 111mm ...

Page 8: ...e whole installation at the mains supply and remove the correct fuse 3 The shower must be connected to its own independent electrical circuit IT MUST NOT be connected to a ring main spur socket outlet lighting circuit or cooker circuit 3 1 The electrical supply must be adequate for the loading of the unit and existing circuits 4 Check your consumer unit main fuse box has a main switch rating of 80...

Page 9: ...in a bath or shower cubicle It should be readily accessible to switch off after using the shower 7 Where shower cubicles are located in any rooms other than bathrooms all socket outlets in those rooms must be protected by a 30mA RCD 8 The current carrying capacity of the cable must be at least that of the shower circuit protection see Table B 8 1 To obtain full advantage of the power provided by t...

Page 10: ...mbient temperatures it may be necessary to select the economy power setting to achieve your preferred shower temperature Fig 5 shows a typical system layout NOTE The control knobs are an integral part of the cover Do not attempt to remove them Lift the cover from the backplate Refer to fig 6 for the correct siting of the shower Position the unit where it will NOT be in direct contact with water fr...

Page 11: ... damaged or kinked shower hose or a blocked shower head This may cause the PRD to operate When commissioning the shower head must be removed from the flexible hose Failure to follow this procedure may cause the PRD to operate Make sure the shower is positioned over a bath or shower tray If the PRD operates then water will eject from the bottom of the unit Should this happen turn off the electricit...

Page 12: ...itting will be partially behind the surface of the wall This area MUST be left clear when plastering and tiling around the pipework in order to make the nut accessible for future adjustments NOTE An additional stopvalve complying with Water Regulations must be fitted in the mains water supply to the shower as an independent means of isolating the water supply should maintenance or servicing be nec...

Page 13: ...pe access points and also a cut out electrical cable access point per trimplate Decide which entry points are to be used for the water pipe entry and electrical cable entry and then remove either the appropriate trim or if cut outs have been chosen remove them using a junior hacksaw file or appropriate knife PLEASE NOTE Only remove thinned out areas as marked cut outs Any other areas removed other...

Page 14: ...djustment after the plumbing connection has been completed Connect the mains water supply to the inlet DO NOT use excessive force when making the connection Make sure the backplate is square on the wall and tighten the remaining screws Turn on the mains water supply and check for leaks in the pipework connection NOTE At this stage no water can flow through the unit IMPORTANT A suitable sealant sho...

Page 15: ...trapped under the screws Loose connections can result in cable overheating NOTE The supply cable earth conductor must be sleeved The outer sheath of the supply cable must be stripped back to the minimum The use of connections within the unit or other points in the shower circuit to supply power to other equipment i e extractor fans pumps etc will invalidate the guarantee DO NOT switch on the elect...

Page 16: ...tor to the COLD position A With the cover off the shower turn the POWER selector spindle until the large flat is horizontal and the slot is in the 9 o clock position B Turn the stabiliser valve spindle fully clockwise until resistance is felt Fig 15 Fig 14 Fig 16 D Turn the temperature control fully clockwise to the 5 o clock position Fig 17 ...

Page 17: ...be necessary to align the knobs and spindles While applying slight pressure to the front cover secure in place using the three retaining screws Fit the riser rail and rit see kit instructions Clip neon into the holder Clip neon into the holder Fig 18 8 Continued SECTION SECTION WARNING COVER RETAINING SCREWS ONLY the SUPPLIED SCREWS should be used The use of non supplied screws WILL invalidate pro...

Page 18: ...lating switch Press the start stop button fig 20 and wait until water starts to flow from the hose Slowly rotate the temperature control fully anti clockwise to the MAXIMUM flow position fig 21 It will take about thirty seconds for a smooth flow of water to be obtained while air and any debris is flushed from the shower When a smooth flow of water is obtained rotate the temperature control from MI...

Page 19: ...gle blue line does not provide any heat from the heater can to the incoming water Economy single red line uses only one of the elements within the heater can NOTE If the stated flow rate required for the unit cannot be met due to low water pressure it will be necessary to operate the unit on this setting during the warmer months because of flow rate limitations entering the unit The high setting d...

Page 20: ...he water hotter NOTE It is advisable that the showering temperature is satisfactory by testing with your hand before stepping under the shower head There will always be a time delay of a few seconds between selecting a flow rate and the water reaching the stable temperature for that flow rate OPERATING FUNCTIONS Power on indicator fig 23 When the electricity supply to the shower is switched on at ...

Page 21: ...fety device once the unit has been repaired Low pressure indicator fig 23 If this indicator is on this means the water pressure has fallen below the minimum required for correct operation of the shower resulting in the low pressure cut out operating This switches off power to the heating elements preventing any undue temperature rises water will continue to flow Power will automatically be restore...

Page 22: ...d to the inlet retaining caps fig 24 Only remove the filter to the same side as plumbing entry leaving the opposite filter filter cap in position failure to do so will result in leakage To gain access to the filter remove the cover Unscrew retaining cap the same side as water supply and filter should be attached push fit If filter has seperated use thin pliers to remove Inspect the o ring for dama...

Page 23: ...ng hot cool at intervals 3 1 Heater cycling on thermal cut out 3 1 1 See Water too hot causes 2 1 2 2 and 2 3 and their appropriate actions If it continues contact Customer Experience 4 Water too cool or cold 4 1 Water pressure below minimum required see rating label 4 1 1 Is water supply mains or tank fed 4 1 2 If tank fed replumb to mains water supply or see 4 1 4 4 1 3 If mains fed make sure th...

Page 24: ...for unit see rating label 6 4 1 Fit pressure reducing valve to inlet and then fit new PRD 7 Shower fails to shut off flow when Start Stop button is pressed 7 1 Faulty Start Stop switch 7 1 1 Replace switch 7 2 Debris in solenoid valve 7 2 1 Replace solenoid valve 7 3 Unit malfunction 7 3 1 Have unit checked Contact Customer Experience FAULT FINDING Important Switch off the electricity at the mains...

Page 25: ...J3466QV All our electric products are labelled accordingly with the crossed out wheeled bin symbol This indicates for disposal purposes at end of life that these products must be taken to recognised collection points such as local authority sites local recycling centres this will be free of any charges Do not return to Triton Showers To purchase a genuine Triton spare part for your product please ...

Page 26: ...26 Electric shower ...

Page 27: ...27 Electric shower ...

Page 28: ...iners Card Payment can also be made by pre payment of a pro forma invoice by cheque or postal order Telephone orders are based on information given during the call Before contacting Triton please verify your requirements using the Triton website or your professional installer Triton cannot accept liability for incorrect part identification TRITON UK STANDARD GUARANTEE This guarantee applies only t...

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