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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

4-3

Hot Water System

4-3.1 Unvented Hot Water Cylinder

The cylinder may be installed at any convenient above ground location within the
property. As Electrastream is a sealed system, the cylinder is equally effective on any
floor.
The cylinder must always be installed vertically.
Avoid positioning the cylinder where it may be subjected to frost.
The floor must give adequate support to the filled cylinder.
Cylinders must have frost protection when they are installed where low temperatures
could be a potential problem - see 1-4.8.
Cylinders with legs are supplied with self-tapping screws for floor fixing.
For servicing and cylinder replacement, clearance is required all round the cylinder -
recommended 100mm minimum.
The cylinder must be fitted with a drain valve, this should be as low as possible and able
to drain at least 80% of the cylinder’s volume.
The cylinder may be installed below ground i.e. in a basement, providing that the
expansion relief discharge pipe is plumbed to a metal receptacle with a suitable pump
and switch arrangement, current Building Regulations give details of this. An alternative
is to use a Hepworth HepvO Self Sealing Waste Valve, this must be installed to the
manufacturers specification and building regulations.

4-3.2 Cylinder Temperature Sensor & Over Temperature Cut-Out Box

The cylinder temperature sensor and over temperature cut-out box is an integral part of
the Electrastream control system.  The Electrastream must not be switched on if the box
is not fitted.
The unit consists of a temperature sensor and over temperature cut-out device, both are
wired back to the Electrastream control unit - see wiring diagrams figs. 3-3a and 3-3b.
The box must be fitted to the cylinder with its phial and sensor inserted into the socket
provided (located above the tri-core heater).  A screw is provided to clamp it securely in
place.
The box is supplied pre-wired.  If the cables need to be extended use suitable rated
cables and ensure they are correctly jointed, sleeved and covered.

4-3.3 Combination Valve

Refer to figs. 4-3b and 4-3c.
The Combination Valve is supplied separate, it has to be fitted to the pipework supplying
the cylinder.
For standard configurations see figs. 1-2a and 1-2b.
The valve has an integral 3.5 Bar Pressure Reducing Valve and a 6 Bar Expansion Relief
Valve. It also has an in-line strainer, this should be checked as part of routine inspection.
No shut off or isolation valves should be fitted between the combination valve and the
cylinder.

INST

INSTALLA

ALLA

ALLATION 4

TION 4

Fig. 4-3a Cylinder Temperature & Over

Temperature Cut-Out Box

Note
For wiring see figs. 3-3a and 3-3b.

Note
The  Electrastream  system  must  not  be
installed in any enclosed space where the
air  temperature  could  exceed  the
maximum  electrical  design  ambient  of
30°C.
Adequate ventilation should be provided
for  airing  cupboards  and  enclosed
compartments.
Humidity  may  also  present  a  problem
within airing cupboards.

TWIN COIL CYLINDER

44444