GAH Electrastream User And Installation Manual Download

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CONTENTS

1 INTRODUCTION

2 OPERA

2 OPERATOR CONTROLS

TOR CONTROLS

3 TECHNICAL INFORMA

3 TECHNICAL INFORMATION

TION

5 COMMISSIONING

7 F

7 FAUL

AUL

AULT FINDING

T FINDING

CONTENTS

CONTENTS
Impor

Impor

Important Information

tant Information

tant Information -----------------------------------------

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

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

Section 1 Intr

Section 1 Introduction

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 Contr

Section 2 Operator Controls

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 T

Section 3 Technical Information

echnical Information

3-1 Specifications ------------------------------------------- 23
3-2 Dimensions --------------------------------------------- 25
3-3 Wiring --------------------------------------------------- 29

Section 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 Commissioning

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

Section 6 Servicing

Section 6 Servicing
6-1 Routine Service ----------------------------------------- 50

Section 7 Fault Finding

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

Health & Safety

Health & Safety ------------------------------

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

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

6 SERVICING

4 INST

4 INSTALLA

ALLA

ALLATION

TION

IMPORTANT

BEFORE STARTING THE INSTALLATION OF THE ELECTRASTREAM CHECK ALL COMPONENTS HAVE

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

HEAL

HEALTH & 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 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

55555