GAH electrastream User And Installation Manual page 49

CONTENTS CONTENTS CONTENTS CONTENTS CONTENTS
Impor Impor tant Information tant Information ----------------------------------------- -----------------------------------------
Important Information Impor Impor tant Information tant Information ----------------------------------------- ----------------------------------------- ----------------------------------------- 4
Section 1 Intr Section 1 Introduction Section 1 Intr Section 1 Intr Section 1 Intr oduction oduction oduction oduction
CAUTION
1-1 Introduction ---------------------------------------------- 5
The main supply must be turned
1-2 System Layout ------------------------------------------- 8
OFF and water drained from the
Accumulator before lowering the
1-3 Parts Supplied ------------------------------------------- 11
charge pressure, failure to do so
1-4 The Electrastream System ------------------------------- 12
could result in damage to the
1-5 Tri Core Heater Operation -------------------------------- 13
diaphragm.
If in doubt consult GAH (Heating Section 2 Operator Contr Section 2 Operator Contr Section 2 Operator Contr Section 2 Operator Controls Section 2 Operator Contr
Products).
2-1 System Control ------------------------------------------ 14
2-2 Electrastream Control Unit ------------------------------- 16
2-3 Shut Off Valves ------------------------------------------ 20
AIR CHARGE VALVE
- SCHRADER
2-4 Temperature & Pressure Relief Discharge ---------------- 22
2-5 Thermostatic Mixing Valve ------------------------------ 22
BUTYL DIAPHRAGM
2-6 Servicing ------------------------------------------------ 22
Section 3 T Section 3 T Section 3 T Section 3 T Section 3 Technical Information echnical Information echnical Information echnical Information echnical Information
3-1 Specifications ------------------------------------------- 23
3-2 Dimensions --------------------------------------------- 25
3-3 Wiring --------------------------------------------------- 29
Section 4 Installation Section 4 Installation Section 4 Installation Section 4 Installation Section 4 Installation
4-1 Building Control ----------------------------------------- 31
Fig. 5-1a Accumulator Pressure
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 Section 5 Commissioning Section 5 Commissioning Section 5 Commissioning
5-1 Commissioning ----------------------------------------- 47
Section 6 Servicing Section 6 Servicing Section 6 Servicing Section 6 Servicing Section 6 Servicing
6-1 Routine Service ----------------------------------------- 50
Section 7 Fault Finding Section 7 Fault Finding Section 7 Fault Finding Section 7 Fault Finding Section 7 Fault Finding
7-1 Fault Finding -------------------------------------------- 52
Health & Safety Health & Safety Health & Safety Health & Safety Health & Safety ------------------------------ ------------------------------ Inside Front Cover ------------------------------ ------------------------------ ------------------------------
BEFORE STARTING THE INSTALLATION OF THE ELECTRASTREAM CHECK ALL COMPONENTS HAVE
BEEN DELIVERED AND ARE IN SATISFACTORY CONDITION - Refer to 1-3 .
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
ols ols ols ols
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.
IMPORTANT
COMMISSIONING COMMISSIONING COMMISSIONING CONTENTS CONTENTS CONTENTS
COMMISSIONING COMMISSIONING CONTENTS CONTENTS
1 INTRODUCTION 1 INTRODUCTION
1 INTRODUCTION 1 INTRODUCTION 1 INTRODUCTION
2 OPERA 2 OPERA 2 OPERA 2 OPERA 2 OPERATOR CONTROLS TOR CONTROLS TOR CONTROLS TOR CONTROLS TOR CONTROLS
3 TECHNICAL INFORMA 3 TECHNICAL INFORMA
3 TECHNICAL INFORMA 3 TECHNICAL INFORMA 3 TECHNICAL INFORMATION
4 INST 4 INST ALLA ALLA
4 INST 4 INST 4 INSTALLA ALLA ALLATION
5 COMMISSIONING 5 COMMISSIONING 5 COMMISSIONING 5 COMMISSIONING 5 COMMISSIONING
6 SERVICING 6 SERVICING 6 SERVICING
6 SERVICING 6 SERVICING
7 F 7 F 7 F 7 FAUL 7 F AUL AUL AUL AULT FINDING T FINDING T FINDING T FINDING T FINDING
HEAL HEAL TH & SAFETY TH & SAFETY
HEAL HEALTH & SAFETY HEAL TH & SAFETY TH & SAFETY
5 5 5
5 5
TION TION
TION TION
TION TION
TION TION
5 5 5 5 5
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