Gledhill TORRENT DIRECT Guide de l'utilisateur

Design, Installation

& Servicing Instructions

All models comply with the HotWater Association

speciﬁcation for thermal stores

Please leave these instructions adjacent

to the appliance

A total hot water and heating

thermal store that can also make

the most of renewable energy

Page 2

CONTENTS

Building Regulations and Benchmark Commissioning

TheBuildingRegulations (England &Wales)requirethatthe installation of aheating

appliance be notiﬁed to the relevant Local Authority Building Control Department.

From 1st April 2005 this can be achieved via a Competent Person Self Certiﬁcation

Scheme as an option to notifying the Local Authority directly. Similar arrangements

will follow for Scotland and will apply in Northern Ireland from 1st January 06.

CORGI operates a Self Certiﬁcation Scheme for gas heating appliances.

Thesearrangementsrepresentachangefromthesituationwherebycompliancewith

theBuildingRegulationswasacceptediftheBenchmarkLogbookwascompletedand

this was then left on site with the customer.

Withtheintroductionofaselfcertiﬁcationscheme,theBenchmarkLogbookisbeing

replacedbyasimilardocumentintheformofacommissioningchecklistandaservice

interval record is included with all gas appliance manuals. However, the relevant

Benchmark Logbook is still being included with all Thermal Storage products and

unvented cylinders.

Gledhill fully supports the Benchmark aims to improve the standards of installation

andcommissioningofcentralheatingsystemsintheUKandtoencouragetheregular

servicing of all central heating systems to ensure safety and efﬁciency.

Building Regulations require that the heating installation should comply with the

manufacturer’s instructions. It is therefore important that the commissioning check

listiscompletedbythecompetentinstaller.Thischecklistonlyappliestoinstallations

in dwellings or some related structures.

AWRASlistedproductdevelopedbyGledhill BuildingProductsin the1980’sin

conjunction with British Gas plc.

British patent nos.1358166,2136099

British patent applications published under nos. 2136099, 2153503, 2153504,

8516025

This product is manufactured under an ISO 9001:2008 Quality System audited

by BSI.

Gledhill’s ﬁrst priority is to give a high quality service to our customers.

Quality is built into every Gledhill product and we hope you get satisfactory

service from Gledhill.

If not please let us know.

Theseinstructionsshouldbereadinconjunction

withtheInstallationandServicingInstructions

issuedbythemanufacturersoftheheatsource

e.g. the boiler used.

Any water distribution and central heating

installation must comply with the relevant

recommendations of the current version of the

RegulationsandBritishStandardslisted below:-

Gas Safety Regulations

Building Regulations

I.E.E. Requirements for Electrical Installations

Water Regulations

British Standards

BS6798, BS5449, BS5546, BS5440:1, BS5440:2,

CP331:3, BS6700, BS5258, BS7593:1993 and

BS7671.

It must be installed by a competent person as

stated in the Gas Safety Regulations.

Manufacturers notes must NOT be taken as

over-riding statutory obligations.

Torrent is not covered by Section G3 of the

currentBuildingRegulationsbuttheinstallation

is notifiable to building control unless it is

carried out under an approved competent

person self-certiﬁcation scheme.

Although the secondary supply (domestic) is

at mains pressure, it is not necessary to fit an

expansionchamber,pressureortemperaturerelief

valve,theplumbingshouldallowanyunusualbuild

upofpressuretoberelievedattheballvalve.

The information in this manual is provided to

assistgenerallyintheselectionofequipment. The

responsibilityfortheselectionandspeciﬁcation

oftheequipmentmusthoweverremainthat of

thecustomerandanyDesignersorConsultants

concernedwiththedesignand installation.

Please Note: We do not therefore accept any

responsibility for matters of design, selection

or speciﬁcation or for the effectiveness of an

installation containing one of our products

unless we have been specifically requested

to do so.

Allgoods aresold subjectto ourConditions

of Sale and Warranty Terms, which are set

out at the rear of this manual.

In the interest of continuously improving

the Torrent range, Gledhill Building Products

Ltd reserve the right to modify the product

without notice, and in these circumstances

thisdocument,whichisaccurateatthetimeof

printing,shouldbedisregarded. Itwillhowever

beupdatedassoonaspossibleafterthechange

has occurred.

Page 3

ISSUE 2:06-10

INDEX

1 DESCRIPTION

1.1 Torrent Direct

1.2 Torrent Indirect-SP

1.3 Torrent Indirect-OV

1.4 Torrent RE-Solar

1.5 Torrent Combi-Preheat

1.6 Torrent HP Range

2 MODEL SELECTION GUIDE AND TECHNICAL DATA

2.1 Model selection guide

2.2 Factory fitted and optional equipment

2.3 Technical data

3 COLD AND HOT WATER DISTRIBUTION NETWORK DESIGN

3.1 General

3.2 Use in hard water areas and scale prevention

3.3 Materials

3.4 Taps/Shower fittings

3.5 Hot and cold water supply pipe lengths

3.6 Water flow noise and water hammer

4 HEATING SYSTEM DESIGN

4.1 Ball valve and overflow

4.1.1 Torrent Direct models

4.1.2 Torrent Indirect and RE models

4.2 Water treatment

4.3 Torrent Direct system design

4.4 Torrent Indirect and Torrent RE-Solar heating system design

4.4.1 General

4.4.2 Pipe sizing and materials – heating system

4.4.3 Boiler size

4.4.4 Open vented heating system

4.4.5 Sealed heating system

4.5 Solar heating systems

4.5.1 General

4.5.2 Torrent Direct – Solar

4.5.3 Torrent RE-Solar

4.6 Other renewable energy sources

5 INSTALLATION

5.1 General

5.2 Torrent Direct

5.3 Torrent Indirect and Torrent RE-Solar

5.4 Solar heating – Torrent RE and Torrent Direct-solar

5.5 Other renewable energy sources

6 COMMISSIONING

6.1 Torrent Direct models

6.2 Non-Electric Torrent models

6.3 Important Do’s and Don’ts

7 FAULT FINDING

7.1 Torrent direct-electric models

7.2 All other Torrent models

8 PARTS

9 Terms & conditions

Page 4

DESCRIPTION

TORRENT DIRECT / INDIRECT OV

Gledhill developed the principle of domestic thermal stores starting in 1982 and they have been

manufacturing them in ever larger numbers since then. They are particularly important to the

design of the systems in two main areas: -

(a) Apartments – Where the discharge from the pressure and temperature relief valves on the

unvented cylinders could be a problem. Because this product does not require a safety

discharge from a temperature and pressure relief valve, any installation will be easy to

incorporate into the building and will not suffer the problems facing unvented cylinders

now that discharges into PVCu soil stacks are not permitted.

(b) Alternative energy – Where a primary a thermal store can be heated by a solid fuel and/or

heat pump and or solar thermal system without the risk of legionella or the risks

associated with high temperature and pressures. The secondary water volume is so small

that the “dwell time” is tiny which is the reason why there is virtually no legionella risk

unlike a storage vessel.

Torrent range of primary thermal stores are designed to provide mains pressure hot water without

the additional safety requirements of a pressure and temperature relief valve. Therefore, unlike

with the unvented cylinder, the notification to the Building Control to comply with section G3 of

the Building Regulations is not required. This is because the thermal store is vented in the normal

way and the mains pressure hot water is heated instantaneously by means of heat exchangers

inside the thermal store as shown in figures 1.1 – 1.5. The domestic hot water heat exchanger

contains its own self replenishing expansion chamber to absorb the expansion of the domestic

hot water inside the appliance.

Unlike unvented storage cylinders, the Torrent range of mains pressure hot water units require no

annual maintenance or inspection. This reduces the running cost for the home owner while

offering high performance showers and high flow rates to fill baths rapidly.

The Torrent model selection guidance is summarised in table 2.1 and the Torrent range is

available in the following basic variants: -

1.1 TORRENT DIRECT

Torrent Direct is an electrically heated, fully packaged mains pressure hot water appliance which

incorporates a feed and expansion cistern as shown in figure 1.1. Therefore it eliminates the

problems associated with a cold water cistern in the roof space. It is supplied complete with two

low watts density immersion heaters for extra quiet operation which are BEAB approved for

safety.

A Torrent Direct-Solar model shown in figure 1.2, is also available for use with a solar thermal

water heating system. The technical data of the Torrent Direct models is listed in table 2.3 in

section 2.

1.2 TORRENT INDIRECT-OV

Torrent Indirect-OV shown in figure 1.3 is a vented primary thermal store that is designed for use

with either a gas or an oil boiler and it provides mains pressure domestic hot water. The primary

thermal store (i.e. the cylinder) of the Torrent Indirect-OV is heated directly by the boiler and

therefore it is only suitable for open vented heating systems.

The primary hot water in the Torrent Indirect-OV models is used for producing domestic hot water

and is also circulated through the central heating circuit for rapid heating of the dwelling.

Page 5

TORRENT INDIRECT SP / RE SOLAR / COMBI PREHEAT

DESCRIPTION

The Torrent Indirect-OV models can be plumbed using the traditional ‘Y’ or ‘S’ plan control

arrangements or alternatively, the central heating can be supplied using a separate pump directly

from the store as described in section 4 of this manual. The technical data of the Torrent Indirect-

OV models is presented in table 2.4 in section 2.

1.3 TORRENT INDIRECT-SP

Torrent Indirect-SP is a vented primary hot water store i.e. the cylinder is designed for use with a

gas or an oil boiler and provides mains pressure domestic hot water (figure 1.4). Like all other

Torrent models, the domestic hot water is heated instantaneously by means of internal heat

exchangers. The primary thermal store of the Torrent Indirect-SP is heated indirectly by means of

a primary heat exchanger (primary coil) and is used for heating domestic hot water only.

The Torrent Indirect-SP is primarily designed for use with sealed primary heating but it can be

used for open vented systems provided separate cold feed and open vent are used for the

heating circuit. The Torrent Indirect-SP models can be plumbed using the traditional ‘Y’ or ‘S’

plan control arrangements as described in section 4 of this manual. The technical data of this

range is listed in table 2.5 in section 2.

1.4 TORRENT-RE – FOR USE SOLAR / WOOD BURNING STOVE / AGA

The Torrent-RE-Solar is based on the well proven, tried and tested Torrent range of thermal

stores described above. It is designed for use with solar thermal systems in combination with a

gas or an oil boiler. In addition to this, the Torrent-RE-Solar can also be connected to other

renewable energy heat sources e.g. wood burning stove, AGA. The connections for wood burning

stove and any additional connections for other heat sources or additional heating circuits can be

specified when placing the order.

All Torrent-RE-Solar models are available for use in traditional open vented (OV) heating systems

as shown in figure 1.5 or with an additional primary (boiler) heat exchanger for use in a sealed

primary (SP) heating systems as shown in figures 1.6. However in both cases the thermal store

is always open vented so that other renewable heat sources can be connected to it safely. In both

variants, the solar panels heat the store by means of a solar heat exchanger inside the store.

In the Torrent-RE-Solar OV models, the thermal store is heated directly by the boiler and/or the

wood burning stove (if fitted) and the central heating is supplied from the thermal store. In the

Torrent-RE-Solar SP models, the thermal store is heated indirectly by the boiler and directly by

the wood burning stove (if fitted) and the central heating is supplied directly from the boiler

circuit. The technical data of these models is listed in tables 2.6 and 2.7 in section 2.

1.5 TORRENT COMBI-PREHEAT

This Torrent variant is designed to provide solar pre-heated mains pressure hot water to a

combination boiler without the risk of legionella. The thermal store is heated either directly (e.g. a

drain back system) or indirectly by my means of an internal solar heat exchanger i.e. a

pressurised solar circuit). In both types, the thermal store is open vented. Horizontal models are

available for use in a loft space with restricted height.

A typical system configuration of solar heating system designed to provide pre-heated mains

pressure hot water to a combination boiler is shown schematically in figure 1.7. The technical

specification of the Torrent Combi-preheat models is shown in table 2.8 in the specification

section 2 of this manual.

Page 6

DESCRIPTION

UNIT DIAGRAMS

1.6 TORRENT HP RANGE

Gledhill produce storage vessels specifically designed for use with heat pumps. Please ask for

Torrent HP / Stainless Lite HP literature or visit our website www.gledhill.net. Our heat pump

range includes: -

(a) Torrent-HP: These are primary thermal stores of up to 450 litre capacity and designed for

use with heat pumps. It provide mains pressure domestic like the standard Torrent but

with solar and wood burning stove options.

(b) Stainless Lite HP: These are unvented cylinders with up to 400 litre capacity and with

enhanced primary heat exchangers and some models have solar option.

These are designed for use in large domestic and commercial heat pump circuits with

operating pressures up to 3.0bar.

Figure 1.1 Torrent Direct

Off Peak

Immersion heater

On Peak (Boost)

Immersion heater

Cold mains

inlet (22 mm)

Hot water outlet

(22 mm )

Adjustable thermostatic

Mixing valve

F & E Cistern

Solid Fuel Flow Store Overheat

Immersion Heater

Solid Fuel Return

Top DHW

Bottom DHW

Cold Feed

Cylinder Drain

Bottom DHW

Vent

Please note Figures 1.1 to 1.7 are shown schematically only

Page 7

UNIT DIAGRAMS

DESCRIPTION

Figure 1.2 Torrent Direct-Solar

Off Peak

Immersion heater

On Peak (Boost)

Immersion heater

Cold mains

inlet (22 mm)

Hot water outlet

(22 mm )

Adjustable thermostatic

Mixing valve

F & E Cistern

Solar heating return

Solar heating Flow

Solar controller sensor pocket

Solid Fuel Flow

Immersion Heater

Solar Flow

Solar Return

Solar Sensor

Solid Fuel Return

Overheat Sensor

Top DHW

Bottom DHW

Cold Feed

Middle DHW

Vent

Cylinder Drain

Figure 1.3 Torrent Indirect-OV

Central heating return

Immersion heater

(Optional)

Cold mains

inlet (22 mm)

Hot water outlet

(22 mm )

Adjustable thermostatic

Mixing valve

F & E Cistern

Boiler return

Boiler flow

Central heating

flow

Wood burning stove

Flow (Optional)

Wood burning stove

Return (Optional)

Store thermostat

Vent

Solid Fuel Flow Store Overheat

ITC Stat

Immersion Heater

Primary Flow

Boiler Return

Boiler Flow

Solid Fuel Return

Top DHW

C/H Flow

Bottom DHW

Cold Feed

Bottom DHW

C/H Return

Cylinder Drain

Page 8

DESCRIPTION

UNIT DIAGRAMS

Figure 1.5 Torrent RE-Solar-OV

Solid Fuel Flow Store Overheat

ITC Stat

Boiler Flow

Boiler Return

Solar Flow

Solar Return

Solar Sensor

Top DHW

Bottom DHW

C/H Return

C/H Flow

Solid Fuel Return

Cold Feed

Immersion Heater

Vent

Cylinder Drain

Immersion heater

(Optional)

Cold mains

inlet (22 mm)

Hot water outlet

(22 mm )

Adjustable thermostatic

Mixing valve

F & E Cistern

Solar return

Solar Flow

Wood burning stove

Return (Optional)

Store thermostat

Wood burning stove

Flow (Optional)

Under-floor heating

return (Optional)

Under-floor heating

flow (Optional)

Boiler flow

Central heating flow

Central heating return

Boiler return

Solar controller

sensor pocket

Overheat sensor

/ thermostat pocket

Figure 1.4 Torrent Indirect-SP

Immersion heater

(Optional)

Cold mains

inlet (22 mm)

Hot water outlet

(22 mm )

Adjustable thermostatic

Mixing valve

F & E Cistern

Boiler return

Boiler Flow

Wood burning stove

Return (Optional)

Store thermostat

Wood burning stove

Flow (Optional)

Vent

Solid Fuel Flow Store Overheat

ITC Stat

Immersion Heater

Primary Flow

Primary Return

Solid Fuel Return

Top DHW

Bottom DHW

Cold Feed

Bottom DHW

Cylinder Drain

Page 9

UNIT DIAGRAMS

DESCRIPTION

Figure 1.6 Torrent RE-Solar-SP

Immersion heater

(Optional)

Cold mains

inlet (22 mm)

Hot water outlet

(22 mm )

Adjustable thermostatic

Mixing valve

F & E Cistern

Solar return

Solar Flow

Wood burning stove

Return (Optional)

Store thermostat

Wood burning stove

Flow (Optional)

Under-floor heating

return (Optional)

Under-floor heating

flow (Optional)

Primary flow

Primary return

Solar controller

sensor pocket

Overheat sensor

/ thermostat pocket

Solid Fuel Flow Store Overheat

ITC Stat

Primary Flow

Primary Return

Solar Flow

Solar Return

Solar Sensor

Top DHW

Bottom DHW

Solid Fuel Return

Cold Feed

Immersion Heater

Vent

Cylinder Drain

Direct Boiler Flow

Direct Boiler Return

Boiler flow

Boiler return

Figure 1.7 Typical Torrent Combi-preheat system

Cold mains

inlet

HW outlet

Thermostatic

Mixing valve

F & E Cistern

Combi Boiler

To hot water

outlets

Solar panels

Solar

controller

Page 10

TECHNICAL DATA

MODEL SELECTION GUIDE

2.1 MODEL SELECTION GUIDE

The suggested model sizes shown in the table 2.1 are based on a typical daily hot water usage

and on the assumptions that the heating system is correctly sized and that the thermal store is

heated to at least 75oC by the main heat source. It is recommended that for higher specification,

an increase of one model size should be considered.

When selecting a Torrent-RE model, the following operating and the compliance requirement

parameters should also be taken into account: -

(a) The primary heat source (e.g. a boiler) will only heat about 65% of the store volume and

the remainder is designed to be heated by the solar thermal system. During the winter

period the solar contribution will be negligible and this should be taken into account when

selecting the Torrent-RE models.

(b) The solar heating systems and the associated equipment should comply with the ‘Building

Regulations’ and these requirements are specified in the ‘Heating system compliance

guide’. (See www.gledhill.net). The key requirements relevant to the model selection are: -

Either the total floor area, AD, of the dwelling should not be greater than the value

stated for the model in table 2.1 as illustrated by example 1 below; or the dedicated

solar volume for the model selected should not be less than the valve ‘25 x AP’; where,

AP, is the total net area of the solar panels in m2as illustrated by example 2 below.

Example 1:

The total floor area, AD, of the dwelling = 130m2.

Therefore from table 2.1, the smallest Torrent model that will comply with the

requirements will be T350RE.

Example 2:

Total net are of the solar panels, AP, to be installed = 3.0m2.

Therefore dedicated solar volume required = 25 x AP= 25 x 3.0 = 75 litres

Therefore from table 2.1, the smallest Torrent model that will comply with this

requirements will be T200RE.

The surface area of the solar heat exchanger of the Torrent-RE model selected should

not be less than the valve ‘0.1 x AP‘ for low flow rate solar panels ( < 0.5 l/min per m2)

or less than the value ‘0.2 x AP’ for high flow rate solar panels ( 0.5 l/min per m2);

where, AP, is the total net area of the solar panels in m2.

Example 3:

The net area, AP, of the solar panels = 2.5m2,

The manufacturers recommended flow rate, QSP, = 0.4 l/min per m2

Therefore, minimum surface area of solar heat exchanger required = 2.5x0.1 = 0.25m2

Example 4:

The net area, AP, of the solar panels = 3.5m2,

The manufacturers recommended flow rate, QSP, = 0.7 l/min per m2

Therefore, minimum surface area of solar heat exchanger required = 3.5 x 0.2 = 0.7m2

Ce manuel convient aux modèles suivants

Table des matières

Autres manuels gledhill Chaudière

gledhill

gledhill GB35C Guide de l'utilisateur

gledhill

gledhill Torrent GreenHeat TGH140-OV Guide de l'utilisateur

gledhill

gledhill BoilerMate BMBP 125 Guide de l'utilisateur

gledhill

gledhill BoilerMate BP Manuel utilisateur

gledhill

gledhill BMA 200 SP-SOL Note de version

gledhill

gledhill BoilerMate HP-DEM-A Manuel utilisateur

gledhill

gledhill mCHP BMA 225 Guide de l'utilisateur

gledhill

gledhill GC2000/120/E-OV Guide de l'utilisateur

gledhill

gledhill BoilerMate A-Class OV SOL Series Guide de l'utilisateur

gledhill

gledhill PCA 200 - SOL Instructions d'installation et d'utilisation

gledhill

gledhill BOILERMATE CP BMSCP120 Manuel utilisateur

gledhill

gledhill GB10 Guide de l'utilisateur

gledhill

gledhill BMA 200 SP Instructions d'installation et d'utilisation

gledhill

gledhill BoilerMate CP 150 Guide de l'utilisateur

gledhill

gledhill TEC140-OV Note de version

gledhill

gledhill StainlessLite D120 Guide de l'utilisateur

gledhill

gledhill BM125 Guide de l'utilisateur

gledhill

gledhill Stainless Lite HP Indirect 180-400 litres Guide de l'utilisateur

gledhill

gledhill Torrent GreenHeat OV TGH140 Guide de l'utilisateur

gledhill

gledhill benchmark BoilerMate A-Class OV Series Guide de l'utilisateur

gledhill

gledhill BMA 120 SP Guide de l'utilisateur

Manuels Chaudière populaires d'autres marques

Vaillant

Vaillant uniSTOR VIH SW GB 500 BES Manuel utilisateur

Radijator

Radijator BIO max 23.1 Manuel utilisateur

Brunner

Brunner BSV 20 Manuel utilisateur

Buderus

Buderus Logamax GB062-24 KDE H V2 Manuel utilisateur

Potterton

Potterton 50e Fiche technique

UTICA BOILERS

UTICA BOILERS TriFire Manuel utilisateur

Joannes

Joannes LADY Series Manuel

ECR International

ECR International UB90-125 Manuel d'instructions

Froling

Froling FHG Turbo 3000 Manuel utilisateur

Froling

Froling P4 Pellet 8 - 105 Manuel utilisateur

U.S. Boiler Company

U.S. Boiler Company K2 Manuel utilisateur

Henrad

Henrad C95 FF Manuel utilisateur

NeOvo

NeOvo EcoNox EF 36 Manuel utilisateur

Potterton

Potterton PROMAX SL 12 Manuel utilisateur

Eco Hometec

Eco Hometec EC 25 COMPACT Manuel utilisateur

Viessmann

Viessmann VITODENS 200 Mode d’emploi

Baxi

Baxi Prime 1.24 Manuel utilisateur

REXNOVA

REXNOVA ISA 20 BITHERMAL Manuel utilisateur

gledhill TORRENT DIRECT Guide de l'utilisateur

Manuels Chaudière populaires d'autres marques