GAH Electrastream

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CONTENTSCONTENTS

CONTENTS

1 INTRODUCTION1 INTRODUCTION

1 INTRODUCTION

2 OPERA2 OPERA

2 OPERA

TOR CONTROLSTOR CONTROLS

TOR CONTROLS

3 TECHNICAL INFORMA3 TECHNICAL INFORMA

3 TECHNICAL INFORMA

TIONTION

TION

5 COMMISSIONING5 COMMISSIONING

5 COMMISSIONING

7 F7 F

7 F

AULAUL

AUL

T FINDINGT FINDING

T FINDING

CONTENTSCONTENTS

CONTENTS

ImporImpor

Impor

tant Informationtant Information

tant Information

----------------------------------------------------------------------------------

----------------------------------------- 4

Section 1 IntrSection 1 Intr

Section 1 Intr

oductionoduction

oduction

1-1 Introduction ---------------------------------------------- 5

1-2 System Layout ------------------------------------------- 8

1-3 Parts Supplied------------------------------------------- 11

1-4 The Electrastream System ------------------------------- 12

1-5 Tri Core Heater Operation -------------------------------- 13

Section 2 Operator ContrSection 2 Operator Contr

Section 2 Operator Contr

olsols

ols

2-1 System Control ------------------------------------------ 14

2-2 Electrastream Control Unit ------------------------------- 16

2-3 Shut Off Valves ------------------------------------------ 20

2-4 Temperature & Pressure Relief Discharge ---------------- 22

2-5 Thermostatic Mixing Valve ------------------------------ 22

2-6 Servicing ------------------------------------------------ 22

Section 3 TSection 3 T

Section 3 T

echnical Informationechnical Information

echnical Information

3-1 Specifications ------------------------------------------- 23

3-2 Dimensions --------------------------------------------- 25

3-3 Wiring --------------------------------------------------- 29

Section 4 InstallationSection 4 Installation

Section 4 Installation

4-1 Building Control ----------------------------------------- 31

4-2 Electrical ------------------------------------------------ 31

4-3 Hot Water System --------------------------------------- 33

4-4 Heating System ----------------------------------------- 37

4-5 Expansion Discharge ------------------------------------ 40

4-6 System Pressure ---------------------------------------- 43

4-7 Electrastream Connections - ---------------------------- 44

Section 5 CommissioningSection 5 Commissioning

Section 5 Commissioning

5-1 Commissioning ----------------------------------------- 47

Section 6 ServicingSection 6 Servicing

Section 6 Servicing

6-1 Routine Service ----------------------------------------- 50

Section 7 Fault FindingSection 7 Fault Finding

Section 7 Fault Finding

7-1 Fault Finding -------------------------------------------- 52

Health & SafetyHealth & Safety

Health & Safety

------------------------------------------------------------

------------------------------ Inside Front Cover

6 SERVICING6 SERVICING

6 SERVICING

4 INST4 INST

4 INST

ALLAALLA

ALLA

TIONTION

TION

IMPORTANT

BEFORE STARTING THE INSTALLATION OF THE ELECTRASTREAM CHECK ALL COMPONENTS HAVE

BEEN DELIVERED AND ARE IN SATISFACTORY CONDITION - Refer to 1-3 .

HEALHEAL

HEAL

TH & SAFETYTH & SAFETY

TH & SAFETY

STAGE 9 - ACCUMULATOR PRESSURE

Accumulators are supplied by GAH with a preset air charge of 2 Bar (28/30psi). The

Combination Valve supplied with the Electrastream Plus has an integral pressure

reducing valve fixed at 3.5 Bar. Therefore there is a pressure differential of 1.5 bar

between the system pressure and the air charge of the Accumulator.

When the incoming mains pressure is less than 3.5 Bar the pressure differential will be

less than 1.5 Bar and the Accumulator will not fill sufficiently, therefore it may be

necessary to lower the Accumulator air charge pressure.

The procedure for changing the Accumulator pressure is given below, this can be done

before the system has been filled. It may be done after the system has been filled and

tested, providing the incoming main has been turned OFF and the water drained from the

Accumulator. Failure to do this may result in false pressure reading and damage to the

butyl diaphragm.

If mains pressure is 3.5 Bar or above, changing the Accumulator charge pressure will not

be necessary.

Adjusting Air Pressure

9-1 Record mains pressure.

9-2 Turn main supply OFF.

9-3 Turn on cold outlets to empty Accumulator.

9-4 Remove black cap from top of Accumulator check/confirm Accumulator pressure

with pressure gauge.

9-5 Lower air charge so that is 1 to 1.5 Bar below mains pressure.

Minimum Accumulator pressure is 0.8 Bar.

STAGE 10 - HANDING OVER

10.1 Complete the Guarantee Form, the top sheet of this MUST be sent to GAH (HEATING

PRODUCTS) LIMITED or the Electrastream can be registered on-line at

www.gah.co.uk.

10.2 Complete the Benchmark Logbook.

10.3 The Installer should re-check the system and ensure it is completely satisfactory

before demonstrating to the end user.

10.4 The end user should be aware of the following:-

1. The most cost effective use of the Electrastream system using economy and

standard tariffs.

2. How to set the temperature of the tap hot water (Mixing Valve).

3. How to set all Electrastream Controller functions.

4. How to set room thermostat.

5. The function of the Pressure Relief Valves and Combination Valve and that over

pressure will cause steam and scalding water to be emitted from the discharge

pipes.

6. That the Tundish is supplied as a visual identification for over pressure.

7. The procedure to follow in the event of over pressure. Refer to Fault Finding

(section 7).

10.5 This manual and supplements must be left with the end user together with a copy of

the completed Guarantee Form.

COMMISSIONING 5COMMISSIONING 5

COMMISSIONING 5

CAUTION

The main supply must be turned

OFF and water drained from the

Accumulator before lowering the

charge pressure, failure to do so

could result in damage to the

diaphragm.

If in doubt consult GAH (Heating

Products).







Fig. 5-1a Accumulator Pressure

GAH Electrastream - Page 49

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