Grundfos iGRID P-Zone, Installation And Operating Instructions Manual, Page: 4 / 80

English (GB)
4
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. General information
1.1 Hazard statements
The symbols and hazard statements below may appear in
Grundfos installation and operating instructions, safety
instructions and service instructions.
The hazard statements are structured in the following way:
1.2 Notes
The symbols and notes below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
1.3 Target group
The product is designed for use as a pressure boosting unit (P-
Zone) or temperature mixing loop (T-Zone) in a district heating
transmission network. The product must be operated by trained
persons with knowledge of district heating systems.
The product must be connected to an existing district heating
network according to local technical regulations. The connection
is handled by the local district heating company or its business
partners.
1. General information 4
1.1 Hazard statements
4
1.2 Notes
4
1.3 Target group 4
2. Receiving the product 5
2.1 Transporting the product
5
2.2 Inspecting the product 5
2.3 Lifting precautions 5
3. Installing the product
6
3.1 Preparing the foundation 6
3.2 Installing the pit 7
3.3 Pump or pumps and pump control
9
3.4 Level control of the drain pit
9
3.5 Sensors 9
3.6 Electrical connection 10
3.7 Starting the pit
10
3.8 Complete work in the pit 11
4. Product introduction 11
4.1 P-Zone product description
11
4.2 P-Zone application 12
4.3 T-Zone product description 12
4.4 T-Zone application
12
4.5 Pumped liquids 12
4.6 Identification 13
5. Servicing the product 16
5.1 Accessing the products
16
5.2 Replacing a pump 17
5.3 Lifting a detached pump 17
5.4 Replacing a non-return valve, gasket, fixture tap or flow
sensor in the pipe system 17
5.5 Replacing a pressure sensor in the pipe system 18
5.6 Replacing a temperature sensor
18
5.7 Completing service 18
6. Taking the product out of operation 18
6.1 The pit is removed from the hole
18
6.2 The pit remains in the hole 18
7. Disposing of the product 18
Read this document before installing the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.
DANGER
Indicates a hazardous situation which, if not avoided,
will result in death or serious personal injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.
SIGNAL WORD
Description of hazard
Consequence of ignoring the warning.
- Action to avoid the hazard.
Observe these instructions for explosion-proof
products.
A blue or grey circle with a white graphical symbol
indicates that an action must be taken.
A red or grey circle with a diagonal bar, possibly with
a black graphical symbol, indicates that an action
must not be taken or must be stopped.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
Tips and advice that make the work easier.