Grant Solar Pump Station Nota di rilascio
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UK | DOC 0096 | Rev 1.0 | October 2022
Grant
Solar Pump Station
Installation & Servicing Instructions
GRANT ENGINEERING (UK) LIMITED
Frankland Road, Blagrove Industrial Estate, Swindon, SN5 8YG
Tel: +44 (0)1380 736920 Fax: +44 (0)1380 736991
improvement. However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering
(UK) Limited, the author or others involved in its publication.
© Grant Engineering (UK) Limited. No part of this manual may be reproduced by any means without prior written consent.
IMPORTANT NOTE FOR INSTALLERS
Please read these instructions in conjunction with the instructions
supplied with the Grant Sahara Solar Thermal System (Grant UK
After commissioning, please leave both the System Installation
Instructions and these Grant Solar Pump Station Instructions with
the user for future reference.
Important: All system pipe connections must use
compression ttings with brass olives. Soft soldered joints
must NOT be used on the solar primary circuit. Plastic pipe
must not be used for any part of the solar primary circuit.
SPECIAL TEXT FORMATS
The following special text formats are used in these instructions
for the purposes listed below:
! WARNING !
Warning of possible human injury as a consequence of not
following the instructions in the warning.
! NOTE !
Used for emphasis or information not directly concerned
with the surrounding text but of importance to the reader.
! CAUTION !
Caution concerning likely damage to equipment or tools
as a consequence of not following the instructions in the
caution.
SERVICING
The Grant Solar Pump Station Supplied with your Grant Solar
Thermal system should be inspected at least every twelve
months.
1 INTRODUCTION 4
1.1 General 4
2 TECHNICAL DATA 5
2.1 Grant Solar Pump Station
Technical Data 5
2.2 Pump Performance 6
2.3 Dimensions 7
3 INSTALLATION 9
3.1 General 9
3.2 Regulations and Standards 9
3.3 Location 9
3.4 Safety 9
3.5 Fitting Procedure 9
3.7 2-Port Valve 12
3.8 Expansion Vessel 12
3.9 Safety Valve Discharge 12
4 COMMISSIONING 16
4.1 Expansion Vessel 16
4.2 Filling Valves 16
4.3 Gravity Brakes 16
4.4 Solar Fluid 17
4.5 Filling the System 17
4.6 Filling Procedure 18
4.7 Releasing Trapped Air 19
4.8 Setting the Flow Rate 19
5 FAULT FINDING 20
5.2 Pump not Operating 20
5.3 Loss of System Pressure 20
6 SPARE PARTS 21
NOTES 22
Contents Page 3
CONTENTS
Section 1: IntroductionPage 4
1.1 GENERAL
systems.
All components are housed within an insulated enclosure designed to be wall mounted.
The Grant Solar Pump Station provides the following functions:
• System pressure and temperature readings
• Safety pressure relief valve and discharge connection
• System expansion vessel connection point
• Isolation valves for upper and lower system levels and pump
Flow - from Collectors
Return - to Collectors
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Figure 1-1: The Grant Solar Pump Station with front cover removed (Grundfos Para pump shown)
1 INTRODUCTION
Section 2: Technical Data Page 5
2.1 GRANT SOLAR PUMP STATION TECHNICAL DATA
Table 2-1: Technical data
Specications for The Grant Solar Pump Station
Dimensions 440 x 280 x 150 (mm)
Weight without packaging 5.2 kg
Pump mounting length 130mm
97mm
Body material Brass
Temperature range of pump operation
Flow pump
Measuring range
System pipe connections
Safety valve lift pressure 6 bar
Safety valve discharge connection
Pressure gauge range 0-10 bar
Thermometer gauge range
50 %
Electrical supply 230-240V 50 Hz
Insulation EPP
Tightening elements EPDM
Flow and Return valves
Min pressure to open check valve
Medium Mixture of non-toxic polypropylene glycol, inhibitors, and dye
Solar controller
2 TECHNICAL DATA
2.2 PUMP PERFORMANCE
Section 2: Technical DataPage 6
Pumped liquid = Water
Liquid temperature during operation = 60°
Density = 983.2 Kg/m³
H
[m]
Q [m³/h]
UPM3 SOLAR
8.5
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4
0
P1
[W]
45
40
35
30
25
20
15
10
5
0
Figure 2-1: Grundfos characteristics Q(H)
Figure 2-2: Grundfos energy consumption characteristics
2.2.1 GRUNDFOS UPM3 SOLAR 7.5M
L/min
12
10
4
2
8
6
97 111
240
413.45
L/min
³/4”³/4”
41
³/4”³/4”
³/4”³/4”
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Figure 2-7: Front view of the Grant Solar Pump Station
150
50
420
Figure 2-6: Side view of the Grant Solar Pump
Station
62
30
Figure 2-8: Plan view of the Grant Solar Pump Station
Section 2: Technical Data Page 7
2.3 DIMENSIONS
Section 2: Technical Data Page 8
L/min
12
10
4
2
8
6
L/min
³/4”³/4”
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
17
16
18
19
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Figure 2-9 of the Grant Solar Pump Station
2.4 COMPONENTS
Table 2-2:
Key No. Description
1
2 Safety valve (6bar)
3 Safety valve discharge connection
4 Pressure gauge (0-10bar)
5
6
7
8
9
10
11
12
13
14 Air separator with integral manual vent - ¾’’ x ¾’’ Male (External Thread)
15 Wall bracket
16 Insulated housing
17
18
19
Section 3: Installation Page 9
3.1 GENERAL
Installation of this pump station must be carried out by a
competent installer in compliance with all current local Building
Regulations, codes of practice, Health & Safety legislation and
any relevant bylaws and regulations in force at the time.
electrician. The electrical installation must comply with the
requirements of the Electricity at Work Regulations 1989 and
BS7671:2008 - IET Wiring Regulations 17th Edition British
Standards Institutions (including all amendments).
3.2 REGULATIONS AND STANDARDS
The installation of the Grant Solar Pump Station must be in
accordance with the following recommendations, as applicable:
• Building Regulations for England and Wales, and Building
Standards for Scotland
• Local Bylaws (check with the Local Authority for the area)
• Water Supply (Water Fittings) Regulations 1999
The installation should also be in accordance with the latest
• BS7671 and amendments
• BS EN 12831
3.3 LOCATION
The Grant Solar Pump Station can be mounted on any suitable
wall surface capable of carrying the weight of the Grant Solar
Pump Station (refer to Table 2-1) where the required clearances
can be achieved. Leave at least 20 cm at each side of the Grant
Solar Pump Station.
Before mounting of the Grant Solar Pump Station an installation
damage to the elements of the Grant Solar Pump Station. The
pump group is designed for wall mounting in an upright position.
The Grant Solar Pump Station MUST only be installed inside
a property, and not located externally, as it not designed to be
weatherproof.
3.4 SAFETY
The Grant Solar Pump Station is intended only for closed solar
installation. The Grant Solar Pump Station complies with the
current technical standards and technical safety regulations.
Each device is checked for proper operation and safety prior to
shipping.
The Grant Solar Pump Station MUST only be installed and
operated by trained personnel. Untrained personnel can work only
under the supervision of an experienced person, who is familiar
with the way the unit works. Before installation, the installer must
carefully read and understand these instructions.
! WARNING !
The temperature inside the Grant Solar Pump Station can
reach dangerous temperatures that can cause serious
burns.
! WARNING !
Ensure that the electrical supply has been isolated before
making any wiring connections.
3 INSTALLATION
3.5 FITTING PROCEDURE
1. Refer to Figure 3-1. Take the two coach screws (3), the two
plugs (1) and the two metallic washers (2) from the wall
bracket kit
2. Remove the front section of the insulated pump station
housing
3.
4. Position the back section of the insulated housing in the
required location. If necessary check the cover is level using
a spirit level on the side and mark the top hole of the wall
bracket.
5.
set into the marked hole with a 10 mm drill bit.
6. Position the back section of the insulated housing in the
(3). Refer to Figure 3-2.
! CAUTION !
When xing the coach screw in step 6 proceed carefully.
The insulation is not rigid and overtightening the screw
could damage it.
7. Mark the position of the lower hole of the wall bracket on the
wall.
8. Remove the coach screw and carefully lift the back section of
the insulated housing
9.
pump set into the marked hole with a 10 mm drill bit
10. Fit
section of the insulated housing taking care to insert it
completely. Refer to Figure 3-3.
11. Lift the back section of the insulated housing and the wall
the two coach screws (3) and the two metallic washers (2).
Place the washers on the outside of the bracket mounting
holes, as shown in Figure 3-2.
! NOTE !
The Grant Solar Pump Station MUST only be installed
vertically, as shown in Figure 1-1.
3.6 FLOW AND RETURN CONNECTIONS
connection on the left and return connection on the right (viewed
from front). Refer to Figure 1-1.
follows:
1.
of the female connector of the copper pipe.
1.
2.
a seal.
3.
compression adaptor in the return connection. Tighten to
form a seal.
If more than one heating appliance is being connected to the
Grant Solar Pump Station, pipework connections between the
appliances should be made prior to making the connection to the
Grant Solar Pump Station.
Section 3: InstallationPage 10
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Figure 3-3
bracket into the back section of the insulated housing
2
1
1
3
3
2
Figure 3-2
housing and the bracket into the wall
2x
2x
2x
1
2
3
Figure 3-1: Wall bracket kit items
! CAUTION !
During assembly, do not overtighten the threads. Some
leakage could result over time.
! CAUTION !
The Grant Solar Pump Station should be installed with
a minimum of 200mm clearance around the insulative
housing.
It MUST NOT be subjected to excessive temperatures, such
as those which occur during welding or soldering. The
Grant Solar Pump Station should be mounted after such
works required in the surrounding area are performed.
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