Grant AS 1.0, Grant AS 1.5, Grant AS 2.0, Grant AS 3.0, AS 1.5 Installation & User's Instructions

Grant Grid-Connected Inverter

For Grant Solar PV Systems

Installation & User Instructions

Doc. 92. Rev. 00 August 2010

PROVISIONAL

COPY

2

Contents

Contents

1 Introduction &

General Requirements 3

1.1 Installation Requirements 3

1.2 Signs used in this manual 3

1.3 Safety instructions 3

1.4 Disposal information 3

2 Product information 4

2.1 Product description 4

2.2 Technical specification 5

3 System Design 6

3.1 Guidance 6

4 Installation 7

4.1 Siting 7

4.2 Mounting 8

4.3 Electrical wiring 9

4.4 Energising the system 10

4.5 De-energising the system 10

5 Inverter Display and Indicators 11

5.1 LED indicators 11

5.2 LCD panel 11

5.3 Normal operation 12

5.4 System operating modes 13

5.5 Fault displays 14

5.6 Power generation data 15

6 Fault Finding 16

6.1 Grid volt error 16

6.2 TVS/Over power 16

6.3 DC supply issue 16

6.4 Inverter defect 16

7 Warranty information 17

7.1 Grant Grid Connected Inverter Warranty 17

8 Notes 18/19

1 Introduction & General Requirements

1.1 Installation Requirements

Thank you for purchasing a Grant grid­connected Inverter from our Solar PV
Range. This installation manual must be
read carefully before you begin installing
the inverter.

This inverter must be installed by a
competent person in compliance with
all current legislation, codes of practice
a

nd local by-laws covering the
installation of electrical equipment.
Please also make sure that any
installation complies with the
instructions contained in this installation
instruction manual.

1.2 Signs used in this manual

WARNING - This sign
indicates that the
following instructions
must be read and
complied with. Failure to
do so may result in Fire,
Injury and death.

CAUTION - This sign
indicates that the
following instructions
must be read and
complied with. Failure to
do so may result in
damage to property.

1.3 Safety instructions

All electrical installations must be
carried out in accordance with the
Electricity at Work Regulations 1989
and BS. 7671:2008 – IEE Wiring
Regulations 17th Edition (including any
a

mendments).

Isolate and disconnect both the AC
and the DC connections to this inverter
before commencing any maintenance.
High power capacitors inside the
inverter may be storing high voltages
even with the AC/DC connections
isolated.

The inverter must be mounted onto a
solid fire resistant wall. The inverter
weighs between 22.5 and 42.5kg
(depending on the model) and will
require two people to lift it into position.

Do not touch any part of the inverter
whilst in operation as the casing
temperature may exceed 60ºC.

Do not disconnect the AC or the DC
plugs from the inverter unless power
has been removed from both the AC
and DC sides. Doing so will damage
the inverter and may result in
electrocution.

Introduction &

General Requirements

3

Please leave this manual with the householder after installation.

1.4 Disposal information

Waste Electrical
and Electronic
Equipment (WEEE)
& Restriction of
the Use of Certain
H

azardous
Substances in
Electrical and
Electronic Equipment (RoHS) Directives.
The Waste Electrical and Electronic
Equipment Directive (WEEE) is an EU
initiative to protect the environment by
reducing the amount of electrical
equipment including PCs, servers,
printers, laptops and other electrical
products going into landfill sites.

This product is classed as Electrical
and Electronic Equipment (EEE) and
should not be disposed of with your
general waste.

2 Product Information

Product

Information

4

2.1 Product Description

The Grant range of PV grid-connected
inverters are designed for small to
medium power grid-connected PV
g

eneration systems.

Features of the Grant inverter range
i

nclude:

* Sealed stainless steel enclosure
designed and certified for IP65
protection.

* Isolation transformer for safety and
reliability without compromising
conversion efficiency

* Plug-in connections for AC , DC and
communication (optional accessory)
cables.

* Power size and input voltage range for
each input MPPT channel

* Transient voltage suppressor at both
input and output terminals to protect
the inverter from transient high voltages
induced by lightening or other sources.

Product

Information

5

2.2 Technical Specification

System

Design

6

3 System Design

3.1 Guidance

Incorrect system design could cause
damage to the inverter.

Non-optimal design will lower the
efficiency of the system and waste
inverter power capacity.

A guide matrix is provided below for
each inverter model when using the
Grant GPV180M Solar PV modules.

CAUTION:

On no account must
these values be
exceeded.