1. DL manuals
  2. Vaillant
  3. Boiler
  4. aquaPLUS VUI 362-7
  5. Instructions For Installation And Servicing

Vaillant aquaPLUS VUI 362-7 Instructions For Installation And Servicing

Manual is about: gas fired room sealed fan assisted combination boiler with intergrated 15 litre power store

Summary of aquaPLUS VUI 362-7

  • Page 1

    Vui 362-7 gas fired room sealed fan assisted combination boiler with integrated 15 litre power store for the installer instructions for installation and servicing aquaplus gb 834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 1.

  • Page 2

    Table of contents instructions for installation and servicing aquaplus vui 362-7 2 page 1 list of contents . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 contents included with boiler . . . . . . . . . . . . . . 3 1.2 installation accessories . . . . . . . . . . . . . . . . . . . 3 2 introd...

  • Page 3

    List of contents 1 instructions for installation and servicing aquaplus vui 362-7 3 1 list of contents 1.1 contents included with boiler ensure that all contents are included before commencing installation. Do not remove the boiler from the polystrene base at this stage. Fig. 1.1: items supplied wit...

  • Page 4

    2 introduction instructions for installation and servicing aquaplus vui 362-7 4 2 introduction 2.1 general information aquaplus boiler the aquaplus is a fully automatic, wall mounted, room sealed combination boiler for central heating and domestic hot water. The boiler has an integrated 15 litre sta...

  • Page 5

    Boiler specification 3 instructions for installation and servicing aquaplus vui 362-7 5 3 boiler specification 3.1 technical data aquaplus vui 362-7 units maximum ch heat input (net) 35.2 kw ch heat output range (80/60 °c) 10.5 - 32.0 kw maximum dhw heat input (net) 40.5 kw dhw heat output 36.9 kw d...

  • Page 6

    3.2 boiler connections key: 1 heating system return (22 mm tail) 2 cold water connection with shut off valve (15 mm tail) 3 gas connection (22 mm tail) 4 hot water connection (15 mm tail) 5 heating system flow (22 mm tail) 6flue outlet (100 mm flue with turret) 7 hanging bracket fig. 3.1: connection...

  • Page 7

    Boiler specification 3 instructions for installation and servicing aquaplus vui 362-7 7 6 3 8 11 12 9 13 25 14 15 16 17 18 19 20 21 22 23 10 7 26 4 5 1 2 24 27 28 29 30 fig. 3.2: functional diagram aquaplus 834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 7.

  • Page 8

    4 general requirements instructions for installation and servicing aquaplus vui 362-7 8 4 general requirements 4.1 preliminary remarks this appliance should only be installed in conjunction with a vaillant flue system. Install the flue system as detailed in the separate flue installation instruction...

  • Page 9

    General requirements 4 instructions for installation and servicing aquaplus vui 362-7 9 4.5 flue system 4.5.1 top outlet flue system (100 mm outside diameter) the top outlet horizontal flue system (art. No. 303 807) is suitable for installations up to 720 mm measured from the centre of the boiler fl...

  • Page 10

    4 general requirements instructions for installation and servicing aquaplus vui 362-7 10 4.5.3 flue termination the following details refer to both flue systems. A. The terminal must be positioned such that the products of combustion can disperse freely at all times. B. In certain weather conditions...

  • Page 11

    General requirements 4 instructions for installation and servicing aquaplus vui 362-7 11 4.6 air supply detailed recommendations for air supply are given in bs 5440: part 2. It is not necessary to have an air vent in the room or internal space in which the boiler is installed. 4.7 cupboard or compar...

  • Page 12

    4 general requirements 4.9.6 expansion vessel the aquaplus incorporates a 10 litre expansion vessel which is suitable for a sealed heating system with a maximum water content of 100 litres. If the nominal capacity of the built in expansion vessel is not sufficient for the heating system (for instanc...

  • Page 13

    Boiler installation sequence 5 instructions for installation and servicing aquaplus vui 362-7 13 5 boiler installation sequence 5.1 general 5.1.1 preparation of boiler location clearances required mount the boiler on a flat and vertical area of wall of sufficient area for the boiler plus the require...

  • Page 14

    5 boiler installation sequence instructions for installation and servicing aquaplus vui 362-7 14 fig. 5.3: using boiler template 5 5 124175 gb 60/100 08/2001 > 210 12,5 30,5 780 122 1 5.2 using boiler template fix the paper template to the wall ensuring that the correct flue exit point has been iden...

  • Page 15

    Boiler installation sequence 5 instructions for installation and servicing aquaplus vui 362-7 15 5.3 fitting the boiler hanging bracket fix the hanging bracket (2) to the wall using the fixings supplied. (it may be necessary to use additional or alternative fixings to ensure adequate support). Fig. ...

  • Page 16

    5 boiler installation sequence 5 instructions for installation and servicing aquaplus vui 362-7 16 5.7 gas supply • connect the 15 mm compression gas service cock (1) and 22 mm copper outlet tail (3) as supplied with the appliance (2) and tighten. • connect a gas supply pipe of not less than 22 mm d...

  • Page 17

    Boiler installation sequence 5 instructions for installation and servicing aquaplus vui 362-7 17 5.9 central heating flow and return pipework before connecting the heating circuit to the boiler appliance, all pipework and radiators must be thoroughly flushed to remove any installation debris. • conn...

  • Page 18

    5 boiler installation sequence 5 instructions for installation and servicing aquaplus vui 362-7 18 5.11 electrical installation general requirements important: all electrical work shall be carried out by a competent person and shall comply with bs7671 (iee regulations). The boiler is supplied for co...

  • Page 19

    Boiler installation sequence 5 instructions for installation and servicing aquaplus vui 362-7 19 fig. 5.9: exposed rear view of switchgear cabinet fig. 5.10: wiring system 3 n l 9 8 7 5 4 3 rt 24v 230v rt 230v 1 2 834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 19.

  • Page 20

    5 boiler installation sequence 5 instructions for installation and servicing aquaplus vui 362-7 20 n l 9 8 7 f3 5 4 3 24v 230v f1 socket x2 for internal unit components socket x4 for diverter valve socket x7 for accessory box connection socket x8 for vrc-vc connection room thermostat, 230 v: connect...

  • Page 21

    Boiler installation sequence 5 instructions for installation and servicing aquaplus vui 362-7 21 5.14 controls external electrical controls the boiler terminals 3, 4 and 5 are for connecting external electrical controls such as a time switch and/or room thermostat. Terminals 3 and 4 are linked toget...

  • Page 22

    5.18 anti-cycling ‘economiser’ control the boiler incorporates a built in anti-cycling control to ensure that energy wasteful short cycling of the boiler cannot occur. This control prevents the boiler from re- igniting for a preset period of 5 minutes after central heating operation (the hot water o...

  • Page 23

    Commissioning part i 6 instructions for installation and servicing aquaplus vui 362-7 23 fig. 6.1: filling aquaplus boiler 6.5 initial system flush (“cold“) the whole of the heating system must be flushed out at least twice: once cold, and once hot as instructed later. • open all radiator and heatin...

  • Page 24

    7 gas supply adjustments (commissioning part ii) instructions for installation and servicing aquaplus vui 362-7 24 7 gas supply adjustments (commissioning part ii) 7.1 gas inlet working pressure to check the gas inlet working pressure: • lower the front panel of the boiler. • lower the control panel...

  • Page 25

    Gas supply adjustments (commissioning part ii) 7 instructions for installation and servicing aquaplus vui 362-7 25 7.2 main burner pressure the burner pressure on this appliance has been factory set and does not require adjustment. To check the main burner pressure connect the u-gauge as follows. • ...

  • Page 26

    7 gas supply adjustments (commissioning part ii) instructions for installation and servicing aquaplus vui 362-7 26 fig. 7.3: setting the maximum heating load (nominal load) 1 10 2 i 0 7.3 adjusting to the maximum heat load (nominal load) • remove the cap (1). • set the dhw temperature control to max...

  • Page 27

    Gas supply adjustments (commissioning part ii) 7 instructions for installation and servicing aquaplus vui 362-7 27 7.4 adjusting the ignition rate • undo screw and remove the cap (1). • disconnect the modulating coil wires from the gas valve, set the dhw temperature control to maximum and fire the b...

  • Page 28

    7 gas supply adjustments (commissioning part ii) instructions for installation and servicing aquaplus vui 362-7 28 7.5 adjusting the central heating output (range rating) the boilers are fully modulating for central heating, and it is therefore not necessary to range rate the boiler. However, if des...

  • Page 29

    Gas supply adjustments (commissioning part ii) 7 instructions for installation and servicing aquaplus vui 362-7 29 note! Following adjustment of the central heating output, the new output can be checked using the gas rate table as detailed. 1 simultaneously press the "i" and "+" buttons keys. 2 keep...

  • Page 30

    7 gas supply adjustments (commissioning part ii) 7 instructions for installation and servicing aquaplus vui 362-7 30 7.6 checking the gas valve mid setting point to ensure the most efficient operation of the boiler a gas valve mid setting point is necessary. This mid setting point has been factory s...

  • Page 31

    Gas supply adjustments (commissioning part ii) 7 instructions for installation and servicing aquaplus vui 362-7 31 7.8 fit boiler casing • carefully push case (1) onto the boiler such that the locating points either side at the top of the boiler engage. Push the casing onto the securing clips at the...

  • Page 32

    8 functional checks (commissioning part iii) instructions for installation and servicing aquaplus vui 362-7 32 8 functional checks (commissioning part iii) 8.1 functional checks once the unit has been installed and the gas supply has been checked, operate the system to ensure that it is working corr...

  • Page 33

    Functional checks (commissioning part iii) 8 instructions for installation and servicing aquaplus vui 362-7 33 8.4 heating mode • activate the system and ensure the tank is fully charged. • ensure that the heating system is calling for heat. • press the ”i“ key. Status code “s.4” appears on the disp...

  • Page 34

    9 servicing 9.1 initial inspection to ensure the continued safe and efficient operation of the boiler it is recommended that it is checked and serviced as necessary at regular intervals. The frequency of servicing will depend upon the particular installation conditions and usage, but in general once...

  • Page 35

    Servicing 9 instructions for installation and servicing aquaplus vui 362-7 35 9.3 cleaning the burner and primary heat exchanger • turn off the boiler. • isolate the electrical supply to the boiler. • remove the boiler case as described on page 15. • turn off the gas service valve. • turn off the bo...

  • Page 36

    10 fault finding 10 fault finding 10.1 introduction the aquaplus boilers have an inbuilt advanced multifunction diagnostic display to assist with fault finding in the unlikely event of a boiler malfunction. The display features the following four modes: normal mode under normal conditions the boiler...

  • Page 37

    Fault finding 10 instructions for installation and servicing aquaplus vui 362-7 37 10.2.1 procedure note: always check the operation of the boiler for central heating first before checking hot water operation. Do not open a hot water tap unless instructed to do so by the fault finding guide. 1. If a...

  • Page 38

    10 fault finding instructions for installation and servicing aquaplus vui 362-7 38 display indication s.00 no heat demand (heating operation) s.01 fan running (heating operation) s.02 pump running (heating operation) s.03 ignition sequence (heating operation) s.04 burner ignited (heating operation) ...

  • Page 39

    Fault finding 10 instructions for installation and servicing aquaplus vui 362-7 39 10.4 diagnostic modes in order to assist with the pinpointing of a particular fault it is possible to use the boiler display in a diagnostic mode to interrogate the boiler about the status of certain components. • pre...

  • Page 40

    10 fault finding instructions for installation and servicing aquaplus vui 362-7 40 table 10.3: diagnostic modes 2 of 2 display indication displayed values/adjustment values d.65 maximum ignition time in s d.67 remaining burner anti-cycling period in min d.68 number of unsuccessful attempted 1st igni...

  • Page 41

    Fault finding 10 instructions for installation and servicing aquaplus vui 362-7 41 10.5 fault codes fault codes take priority over all other display functions in the event of a system fault occurring. If multiple faults occur, the corresponding fault codes are displayed alternately for about two sec...

  • Page 42

    10 f ault finding ins tructions for ins tallation and servicing aquapl us vui 3 62 -7 42 ensure boiler main on/off control is set to position "1" is there a display on the lcd panel? Yes go to sheet c check electrical supply, appliance fuses and on/off control no is 230vac present across terminals l...

  • Page 43

    F ault finding 10 ins tructions for ins tallation and servicing aquapl us vui 3 62 -7 43 sheet b check operation of pump and fan turn off the main on/off control to the "0" position disconnect the power supply to the boiler go to sheet a is there a display on the lcd panel? Check transformer 230 vac...

  • Page 44

    10 f ault finding ins tructions for ins tallation and servicing aquapl us vui 3 62 -7 44 check central heating and controls ensure that radiator temperature control knob is set to vertical position and that any internal timer (if fitted) is calling for heat check diagnostic code d.08 (see page 39). ...

  • Page 45

    F ault finding 10 ins tructions for ins tallation and servicing aquapl us vui 3 62 -7 45 does fan run after approx. 30 secs.? Check flue and ignition system no check diagnostic code d.24 (see page 39) equal 1? Check pitot tube (in fan outlet) and air hoses are not obstructed and correctly aligned. C...

  • Page 46

    10 f ault finding ins tructions for ins tallation and servicing aquapl us vui 3 62 -7 46 check gas valve and central heating system pressure does burner light 1st attempt? Does burner light within 3 ignition attempts? No yes check gas supply does burner light? Yes check burner pressure settings are ...

  • Page 47

    F ault finding 10 ins tructions for ins tallation and servicing aquapl us vui 3 62 -7 47 does flame indicator glow and flames increase in size to full gas rate after approx. 2 mins? Yes does burner flame modulate/ go out when radiator temperature control is turned left to the horizontal position at ...

  • Page 48

    10 f ault finding ins tructions for ins tallation and servicing aquapl us vui 3 62 -7 48 draw hot water at high rate does flow indicator (tap) on display light up? Yes check hot water flow rate and temperature. Compare with technical data, if flow is not sufficient, check incoming main and cold wate...

  • Page 49

    Diagrams 11 instructions for installation and servicing aquaplus vui 362-7 49 11 diagrams 11.1 functional flow diagram: aquaplus vui 362-7 power supply f2a l 2 n 1 main switch main transformer 230v 20v air pressure switch fan pump ntc flow temperature sensor flame sensor gas valve dhw aqua sensor f1...

  • Page 50

    11 diagrams instructions for installation and servicing aquaplus vui 362-7 50 fig. 11.2: wiring diagram aquaplus 11.2 wiring diagram: aquaplus vui 362/7 switch gear cabinet u100 x3 t 2 t 1,25 = f3 x2 x2x 2 x1 24 23 1 12 13 14 15 16 17 18 19 20 21 22 2 3 4 5 6 7 8 9 10 11 x2 aqua sensor ntc air press...

  • Page 51

    Short parts list 12 instructions for installation and servicing aquaplus vui 362-7 51 table 12.1: short parts list * for these components, please observe the associated installation and removal instructions relating to spare parts. 12 short parts list description part no. Key no. Burner burner chamb...

  • Page 52

    12 short parts list 52 instructions for installation and servicing aquaplus vui 362-7 fig. 10.1 fig. 10.2 fig. 10.3 fig. 10.5 fig. 10.6 fig. 10.7 fig. 10.8 fig. 10.9 fig. 10.10 fig. 10.11 fig. 10.12 fig. 10.13 834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 52.

  • Page 53

    Short parts list 12 53 instructions for installation and servicing aquaplus vui 362-7 fig. 10.14 fig. 10.15 fig. 10.16 fig. 10.17 fig. 10.18 fig. 10.19 fig. 10.20 fig. 10.22 * * * for these components, please observe the associated installation and removal instructions relating to spare parts. Fig. ...

  • Page 54

    834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 56.

  • Page 55

    834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 57.

  • Page 56

    834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 58.

  • Page 57

    834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 59.

  • Page 58

    834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 54.

  • Page 59

    834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 55.

  • Page 60

    834 7 0 2_34 gb 0 3 2 0 0 5 s ubject to alt er ation 834702_33gb_012005.Qxd 09.03.2005 16:26 uhr seite 60