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MULTIPOINT

  5

3.0 INSTALLATION - ELECTRICAL REQUIREMENTS

          WARNING: This appliance must be earthed. It is suitable for a.c.  supply only.
          Disconnect the electrical supply before removing the terminal cover. Installation
          must be in accordance with the current I.E.E. Wiring Regulations.
3.1

  The unit is supplied fitted with a 0.75m 3 core 1.5mm

2

 flexible cable. The electicity

supply should be fused 13 Amp and be via a double pole isolating switch with a
contact separation of at least 3mm in both poles. Refer to the schematic wiring
diagram below.

3.2

The wires are colour coded as follows:
Green and Yellow

EARTH

(   )

Brown

LIVE

(L)

Blue

NEUTRAL

(N)

5

ELEMENT

NEON

RESET BUTTON

EARTH
POST

('STAT/CUT-OUT PLUGS DIRECTLY 
ONTO ELEMENT TERMINATIONS).

DOUBLE POLE
ISOLATING SWITCH

BROWN

BLUE

GREEN/YELLOW

MAINS 
SUPPLY

L
N

FIGURE 5:  WIRING DIAGRAM 'AC' ONLY.

Summary of Contents for HS10U

Page 1: ...se instructions before starting work Pleaseleavethisleafletwiththeuserfollowinginstallation PACK CONTENTS Heater Factoryfittedtemperatureandpressurereliefvalve Fixing screwsandplugs InstallationandUserInstructions WARNING Thiswaterheatermustonlybeinstalledbyqualifiedpersons 36005794 Issue 2 ...

Page 2: ...L INVALIDATE ANY GUARANTEE AND LEAD TO A DANGEROUS INSTALLATION 1 2 Expansion can take place within the cold water supply PROVIDED THAT BOTH a Backflow in the main is not prevented by any stopvalve with loose jumper check valve pressure reducing valve or similar AND b Hot water expansion does not enter a branch to a cold water outlet see Figure 1 for expansion pipe lengths N B Boththeaboveconditio...

Page 3: ...W OFF SERVICE VALVE PRESSURE EXPANSION RELIEF VALVE HS10U OR HS15U HOT COLD TUNDISH TO DRAIN WASTE EXPANSION VESSEL NEAREST COLD DRAW OFF PRESSURE REDUCING VALVE SERVICE VALVE PRESSURE EXPANSION RELIEF VALVE COLD WATER MAINS NOTE IF PRESSURE REDUCING VALVE IS USED EXPANSION DOWN THE MAINS IS NOT POSSIBLE FIGURE 1 FOR INLET WATER PRESSURES UP TO 4 1 BAR 60 P S I NO ADDITIONAL KITS USED COLD WATER M...

Page 4: ...f the wall 2 5 DO NOT install where the unit may freeze 2 6 Refer to the section IMPORTANT INSTALLATION POINTS to determine which valves and accessories are required Plumb in the valves in the sequence shown in the relevant Diagrams Figures 1 2 and 3 2 7 The inlet water connection is a 15mm diameter copper tube suitable for compression fittings The outlet water connection is made to the 15mm commp...

Page 5: ...a 0 75m 3 core 1 5mm2 flexible cable The electicity supply should be fused 13 Amp and be via a double pole isolating switch with a contact separation of at least 3mm in both poles Refer to the schematic wiring diagram below 3 2 The wires are colour coded as follows Green andYellow EARTH Brown LIVE L Blue NEUTRAL N 5 ELEMENT NEON RESET BUTTON EARTH POST STAT CUT OUT PLUGS DIRECTLY ONTO ELEMENT TERM...

Page 6: ...l supply until the unit has been filled with water and checked for leaks 5 2 Check that all installation electrical and discharge pipe requirements have been met 5 3 Check that all water and electrical connections are tight 5 4 Open a hot water tap turn on mains water supply to the heater 5 5 Allow unit to fill and leave hot tap running for a short while to purge any air and flush out the pipework...

Page 7: ...ver as described in Section 5 8 6 4 Disconnect the electrical terminations to the thermostat Disconnect earth links to the earthing stud 6 5 Remove the element plate assembly by unscrewing the five securing screws tapped jacking points are provided Remove any loose scale from the container Carefully clean off any scale from the element and thermostat pocket DO NOT clean scale from interior contain...

Page 8: ...bar 60 p s i This can reduce over time and eventually require re charging To do this 8 1 Turn off water supply to the unit open a hot tap to relieve system pressure 8 2 Remove dust cap from top of Expansion Vessel 8 3 Check pre charge pressure using a tyre pressure gauge If the pressure is lower than 4 1 bar 60 p s i it should be recharged using a tyre pump Schraeder Valve type DONOTOVERCHARGE 8 4...

Page 9: ...ONOTREPLACEWITHPARTSNOTRECOMMENDEDBYHEATSTORE THIS WILLINVALIDATEYOURGUARANTEEANDMAYRENDERTHEINSTALLATION DANGEROUS DESCRIPTION CODE NO Element plate assembly 10 litre 3kW 95 606 921 Element plate assembly 15 litre 3kW 95 606 922 Combined thermostat thermal cut out 3kW 95 612 687 Indicator light 3kW 95 607 992 Element plate gasket 95 611 708 Temperature Pressure Relief Valve 95 605 855 Top cover m...

Page 10: ...esure Relief Valve Discharge of water from 1 Fit Pack B see IMPORTANT INSTALLATION POINTS 2 Fit Pack A see IMPORTANT INSTALLATION POINTS 3 Fit Pack B when using Pack A 4 Replace Pressure Relief Valve 5 Check and if necessary re charge Expansion Vessel pre charge pressure see Section 8 0 1 Expansion in mains not possible 2 Mains pressure exceeds 4 1 bar 60 p s i 3 Pack A fitted without Pack B 4 Pre...

Page 11: ...id any risk of freezing when the heater is not in use for long periods during the winter months do not switch off the electrical supply and set the thermostat to its minimum position N B This will not protect other system pipework 12 2 The indicator light will be illuminated when the unit is heating 12 3 To ensure the heater continues to operate at its optimum performance it should be periodically...

Page 12: ...mpered with and has been regularly maintained as detailed in these instructions 4 The unit has been used only for heating potable water The unit is NOT guaranteed against damage by frost or due to the build up of scale This guarantee does not affect the statutory rights of the consumer The policy of Heatstore is that of continuous improvement and development therfore the right is reserved to chang...

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