Aqualisa Dream Manual de usuario

Dream

Thermostatic mixer shower with 105mm

Harmony head

Installation guide

Dream installation guide:Dolphin install Guide 18/1/11 09:50 Page 1

Index

Introduction p.3

- Safety information p.3

- Product specification p.3

Connection to supplies p.3

- Pipe sizing p.3

- Flushing p.4

- Filters p.4

- Isolating valves p.4

- Pressures p.4

Gravity system p.4

- Siting p.5

- Pump installation p.5

- Stored water capacities p.5

Combination boiler systems p.5

Balanced high pressure sytems p.5

Typical water systems p.6

System components p.8

Valve installation instructions p.9

- Dream concealed valve p.9

Harmony shower head installation p.12

- Adjustable height Harmony head p.12

- Fixed Harmony head p.15

User guide

- Shower valve p.16

- Adjustable height Harmony head p.16

- Fixed Harmony head p.17

Cleaning & maintenance p.17

Commissioning p.18

Trouble shooting guide p.19

Dream installation guide:Dolphin install Guide 18/1/11 09:50 Page 2

Introduction

The Dream product range includes a concealed valve available complete with either an adjustable height or fixed

shower head. Dream thermostatic valves provide close temperature stability and fail safe protection on appropriate

high and low pressure systems. Please refer to the product specification section below.

If at any stage during installation you have any questions, please contact the Aqualisa customer helpline

on 01959 560010 for assistance.

Safety information

This product must be installed by a competent person in accordance with all relevant current Water Supply

Regulations.

THE SHOWER MUST NOT BE USED WITH A HOT WATER SUPPLY TEMPERATURE OVER 65ºC.

The Dream range is designed for domestic use only.

Product specification

Dream products are suitable for all gravity, boosted gravity, balanced high pressure and combination boiler systems*.

Pressure range 0.1bar – 10bar max (static).

*The combination boiler MUST have a minimum rating of 24kW (80,000 Btu) and be of the type fitted with a fully

modulating gas valve.

A cold inlet flow regulator is provided for use with combination boiler applications.

If any doubt, please contact the appliance manufacturer before installation commences.

Connections

Dream products are designed for conventional supplies with HOT on the left and COLD on the right as viewed

from the front.

Dream shower valves incorporate ‘push fit’ type connections for use with 15mm British standard copper tube.

Tube should be cut using a rotary type cutter and lubricated using a silicone based lubricant or petroleum jelly

(Vaseline or similar) prior to insertion into the fitting.

If plastic pipe is used, the tube insert must not increase the tube diameter or extend the cut off length by more

than 2mm.

THESE FITTINGS ARE NOT SUITABLE FOR STAINLESS STEEL TUBE

Supply lines must be flushed clear of any debris before installation of the unit. Any debris accumulation in the in the

shower valve and head may result in damage and poor performance.

Pipe sizing

Long pipe runs, on both inlet and outlet, will reduce the flow rate at the shower head. If long pipe runs are

unavoidable, use copper pipe rather than plastic. If plastic pipe is used, minimise the number of elbows as pipe

inserts are very restrictive. Consideration should be given to using 22mm plastic or copper pipe especially if a

diverter valve is to be fitted.

Important information

Dream installation guide:Dolphin install Guide 18/1/11 09:50 Page 3

Flushing

Some modern fluxes can be extremely corrosive and, if left in contact, will attack the working parts of the unit. All

soldering must be completed and the pipe work thoroughly flushed out in accordance with current Water Supply

Regulations prior to connection of the product.

Filters

To ensure ongoing optimum performance, the internal control mechanism ‘cartridge’ is protected by a two-part

filter system. Debris accumulation may result in reduced flow from the shower head and noisy operation.

As this condition is not covered by our standard warranty terms, it is suggested that the cartridge be removed and

the filters checked by a competent person. In the event of any difficulties please contact the Aqualisa customer

helpline for assistance.

Isolating valves

Suitable full way isolation valves must be fitted to both supplies in accordance with current Water Supply

Regulations and our terms of warranty.

Due to their restrictive characteristics, stopcocks and ball type valves that reduce the pipe bore size must not be

used on gravity and boosted gravity installations.

Pressures

The Dream cartridge is designed to operate from the mains at a maximum of 10bar. If the mains pressure likely to

exceed 10bar, a ‘drop tight’ PRV must be fitted on the supply pipe after the main stopcock. A setting of 3bar is

recommended. It should be noted that daytime pressures approaching 8bar can rise above the stated maximum

overnight.

A suitable PRV is available from Aqualisa.

Dream products are not suitable for mixed supply systems, e.g. gravity hot and mains cold.

Gravity fed hot and cold supplies

Services must be installed according to good plumbing practice having regard to pipe sizing, long pipe runs and low

head situations.

The cold supply for the valve assembly must be taken directly from the cold water storage system. The hot supply

may be taken from the vent/draw off pipe of the hot water cylinder at a point below the cylinder connection or

alternatively from the underside of the horizontal draw off.

Rising pipe work must NOT be connected into the horizontal draw off from the cylinder or to any point in the

vent/draw off pipe above the cylinder connection.

CYLINDER TEMPERATURE IN EXCESS OF 65°C MAY RESULT IN POOR SHOWER PERFORMANCE

To minimise pressure loss we recommend that the hot and cold supplies are run in 22mm as close as reasonably

possible to the mixing valve before reducing to 15mm.

Dream installation guide:Dolphin install Guide 18/1/11 09:50 Page 4

Siting

For optimum performance, with gravity fed systems the distance between the bottom of the storage cistern and the

shower head should be not less than 1m (when using an adjustable height head). If using a fixed head, the highest

point of the pipe work must be below the underside of the cistern.

Please refer to the typical system layout on page 6.

Pump installation

UNDER NO CIRCUMSTANCES MUST A PUMP BE FITTED DIRECTLY TO THE WATER MAIN

A pump must only be used to boost the pressure from tank fed supplies.

A minimum 1 bar twin ended booster pump is recommended.

ENSURE THE MINIMUM GRAVITY FLOW RATE IS SUFFICIENT TO OPERATE THE PUMP FLOW SWITCHES.

PLEASE REFER TO THE MANUFACTURERS PUMP INSTALLATION GUIDE FOR PUMP INSTALLATION

INFORMATION.

Please refer to the typical system layout on page 6.

Stored water capacities

The minimum capacity of the cold storage cistern should be not less than 225 litres (50 gallons). The capacity of

the hot cylinder must be capable of meeting the anticipated demand.

Combination boiler/multipoint system

Dream products are suitable for use with combination boiler systems. The combination boiler MUST have a

minimum rating of 24kW (80,000 Btu) and be of the type fitted with a fully modulating gas valve. This is sufficient

to operate one outlet at a time.

If in any doubt, please contact the appliance manufacturer before installation commences.

The cold supply can be taken from the nearest convenient mains supply and the hot supply can be taken from the

nearest hot water draw off point. Account must be taken of the pressure drops that will occur when other draw off

points are used while the shower is in use.

Please refer to the typical system layout on page 7.

Balanced high pressure system

The cold water supply must be drawn from the same mains supply as that to the hot water system (down stream of

the cylinder manufacturer’s pressure limiting valve, where supplied) and the hot supply from the nearest convenient

draw off point. Account must be taken of pressure drops that may occur when other draw off points are used while

the shower is in use.

Please refer to the typical system layout on page 7.

Dream installation guide:Dolphin install Guide 18/1/11 09:50 Page 5

Typical system diagrams

Typical pumped system installation

Typical gravity system installation

Dream installation guide:Dolphin install Guide 18/1/11 09:50 Page 6

Typical system diagrams continued

Typical combination boiler system installation

Typical thermal storage unit system installation

Typical UHW system installation

Dream installation guide:Dolphin install Guide 18/1/11 09:51 Page 7

Components - Dream concealed with adjustable 105mm Harmony head

Components - Dream concealed with fixed 105mm Harmony head

Dream installation guide:Dolphin install Guide 18/1/11 09:51 Page 8

!In addition to the guide below it is essential that the written instructions overleaf are read and

understood and that you have all the necessary components (shown on page 8) before commencing

installation. Failure to install the product in accordance with these instructions may adversely affect

the warranty terms and conditions. Do not undertake any part of this installation unless you are

competent to do so. Prior to starting ensure that you are familiar with the necessary plumbing

regulations required to install the product correctly and safely.

Dream concealed is supplied with universal fixings.

1If installing the product built in to a solid wall, chase out a suitable recess in the wall to receive the valve

and pipe work. If installing the valve in a concealed panel mounted situation, in most cases it will be

necessary to first install a suitable sound fixing in the cavity area before fixing the valve. A hole of Ø130mm

is required to install the valve and gain access to inlet and outlet connectors.

The valve needs to be mounted to the depth shown at the following centres.

The distance between the 15mm inlet centre pipe centres is 150mm as shown.

2Mark the position for the four fixing points as outlined above.

Dream concealed valve installation

4Carefully remove the on/off knob from the valve assembly and set aside.

3Carefully remove the valve from its packaging and retain the mortar guard for later use.

65mm

150mm

Supply pipes hot on

left, cold on right

65mm

100mm max.

to finished/

tiled wall

surface

60mm

min. from

back face

of valve to

finished/

tiled wall

surface

(10mm

allowance

for tiles)

Dream installation guide:Dolphin install Guide 18/1/11 09:51 Page 9

5Ensuring the black protective cap remains fitted, set the temperature control lever to the full cold (9 o’clock)

position. Remove the fixing screws, pull the assembly clear and set aside.

6The temperature preset override ring (coloured) and the temperature preset location

ring (white) do not need to be removed for installation. If they are removed however,

please take note of the orientation prior to removal.

7Carefully remove the shroud from the valve assembly. The temperature override

housing (white) does not need to be removed in order for the valve to be installed.

If the housing is removed then please take note of its orientation on the valve.

8Fit the elbows to the body hand tight, ensuring that the rubber washers are correctly engaged (these are

supplied in the screw pack).

9If the valve is to be installed for use with a gas fired instantaneous (multipoint)

water heater or a combination boiler the cold water flow regulator must be fitted

at this stage by insertion into the cold water port as shown ensuring the o’ring faces

the incoming flow (the flow regulator is supplied in its own pack).

10 The Dream valve is supplied with an outlet cap on the bottom of the valve allowing for a top outlet

connection. The bottom outlet can be used by simply removing the cap and repositioning it on the

top outlet. If the cap is removed please ensure that when replaced the washer in the cap is in place

and that the cap is done up tight.

11 Fit the outlet connector ensuring that the rubber washer is correctly engaged

(supplied in the screw pack), on the required outlet ensuring a tight fit. Position the

valve and check the four fixing positions and that there is adequate space available

around both inlet elbows and the outlet connector. Prepare the wall fixings as

required. Secure the valve assembly to the fixing surface using the screws

provided (if suitable).

Dream installation guide:Dolphin install Guide 18/1/11 09:59 Page 10

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