Table Of Contents; Symbols Used In This Document; Applications; System Sizing - Grundfos JP Basic Booster Installation And Operating Instructions Manual

English (GB) Safety instructions
CONTENTS
1. Symbols used in this document
2. Applications
3. System sizing
4. Electrical connection
5. Start-up
5.1 Shaft seal run-in
6. Adjustment
6.1 Calculating the cut-in and cut-out
pressures
6.2 Adjusting the precharge pressure
6.3 Setting the pressure switch
7. Operation and maintenance
8. Frost protection
9. Technical data
10. Fault finding
11. Disposal
Warning
Prior to installation, read these
installation and operating instructions.
Installation and operation must comply
with local regulations and accepted
codes of good practice.

1. Symbols used in this document

Warning
If these safety instructions are not
observed, it may result in personal
injury.
Warning
If these instructions are not observed,
it may lead to electric shock with
consequent risk of serious personal
injury or death.
If these safety instructions are not
Caution
observed, it may result in malfunction
or damage to the equipment.
Notes or instructions that make the job
Note
easier and ensure safe operation.
6

2. Applications

Page The JP Basic Booster is suitable for pressure
boosting of fresh water in domestic water supply
6
systems.
6

3. System sizing

6
6
Warning
7
The system in which the product is
7
incorporated must be designed for the
maximum pump pressure.
7
7

4. Electrical connection

7
8
Warning
8 The electrical installation should be
carried out by an authorised person in
8
accordance with local regulations.
8
Check that the supply voltage and frequency
9
correspond to the values stated on the nameplate.
9
Warning
During electrical installation, make sure
that the power supply cannot be
accidentally switched on.
Warning
The unit must be connected to an
external mains switch with a minimum
contact gap of 3 mm in all poles.
As a precaution, the pump must be
connected to a socket with earth
connection.
We recommend to fit the permanent
installation with an earth leakage circuit
breaker (ELCB) with a tripping current
≤
30 mA.
Single-phase motors incorporate a thermal switch
and require no additional motor protection.