UKV 201000 - Boiler Nibe - Free user manual and instructions

Product type	Buffer tank for heating system
Brand	Nibe
Model	UKV 201000
Capacity	39 liters
Net weight	16 kg
Maximum working pressure	6 bar (0.6 MPa)
Operating temperature	+4 °C to +95 °C
Dimensions (diameter × height)	450 mm × 495 mm
Hydraulic connections	G1" internal (heating circuit outlet XL1, heat pump inlet XL8)
Tank material	Insulated steel (anti-condensation)
Insulation	Polyurethane
External coating	White powder-coated sheet metal with durable plastic ends
Main functions	Volume and flow increase, temperature peak reduction, external heating control
Installation	Vertical wall mounting, bracket supplied
Maintenance	Check safety valve 4 times per year; replace if defective
Safety	Safety valve ≤6 bar; installed by qualified professional
Spare parts	Use only genuine NIBE parts
Serial number	14 digits, located on the label (PZ3)
General information	Manufactured according to Directive 2014/68/EU; energy efficiency class B

Frequently Asked Questions - UKV 201000 Nibe

How to install the UKV 201000 buffer tank?

Fix the supplied wall bracket on a dry, frost-free wall. Hang the tank in a vertical position. Connect the hydraulic pipes in accordance with applicable standards. Purge the tank before filling.

What is the maximum working pressure of the UKV 201000?

The maximum pressure is 6 bar (0.6 MPa). The system must be equipped with a safety valve calibrated to this pressure.

Can the UKV 201000 be used with a heat pump?

Yes, the UKV 201000 is designed to be charged by a heat pump. It ensures a safe flow rate and increases the system volume.

How to maintain the safety valve?

Inspect the valve about four times a year. Open it manually and check that water flows into the overflow pipe. If not, replace it.

What are the advantages of installing a buffer tank?

It increases the water volume in the circuit, reduces temperature peaks, avoids 'heating noises', and ensures a constant flow even with radiator thermostats.

What is the maximum operating temperature?

The operating temperature range is +4 °C to +95 °C.

How to drain the tank?

Use the drain valve installed on the flow circuit (XL1). First purge the tank by loosening the upper connection (XL8).

Can the UKV 201000 be floor-mounted?

No, the tank must be hung on a wall in a vertical position using the supplied bracket.

Where to find the serial number?

The 14-digit serial number is located on the label above the product (reference PZ3). Note it for any maintenance requests.

What is the energy class of the UKV 201000?

The energy efficiency class is B on a scale from A+ to F. Heat loss is 28 W.

USER MANUAL UKV 201000 Nibe

White cylindrical industrial vessel with a black bolt, labeled 'NIBE UKV' on the side (no other text or symbols visible)

Icon of a wrench and hand inside a hexagon, symbolizing tools or maintenance (no text or symbols)

Table of Contents

Svenska

4Viktig information

6Till användaren

7Till installatören

This manual describes installation and service procedures for implementation by specialists.

The manual must be left with the customer.

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning an user maintenance shall not be made by children without supervision.

This is an original manual. It may not be translated without the approval of NIBE. Rights to make any design or technical modifications are reserved.

©NIBE 2023.

SERIAL NUMBER

The serial number can be found on top of the product.

Caution

Always give the product's serial number when reporting a fault.

RECOVERY

Leave the disposal of the packaging to the installer who installed the product or to special waste stations.

Do not dispose of used products with normal

se household waste. It must be disposed of at a special waste nderation or dealer who provides this type of service.

Improper disposal of the product by the user results in ad- ministrative penalties in accordance with current legislation.

SYMBOLS

Explanation of symbols that may be present in this manual.

NOTE

This symbol indicates danger to person or machine.

Caution

This symbol indicates important information about what you should consider when installing or servicing the installation.

MARKING

Explanation of symbols that may be present on the product's label(s).

GENERAL

UKV 40 is designed and manufactured according to sound engineering practice in order to ensure safe usage.

INSPECTION OF THE INSTALLATION

Current regulations require the heating installation to be inspected before it is commissioned. The inspection must be carried out by a suitably qualified person.

√				DateSignatu
Heating medium (page 14)
	Shut o valves
	Safety valve

For the User

MAINTENANCE

The safety valve in the system where the accumulator tank is installed must be inspected regularly (about four times a year) to prevent blockages.

To inspect the valve, open the safety valve manually and check that water ows through the overow pipe. If this does not happen then the safety valve is defective and must be replaced.

SERVICE

For service, contact the installer. Serial number (PZ3) (14 digits) and installation date should always be stated.

Only replacement parts supplied by NIBE may be used.

For the Installer

COMPONENT LOCATION

UKV 40

GENERAL

UKV 40 has several dierent areas of use.

UKV 40 can be used during external control of the heating system. The heat pump then charges UKV 40 with oating or xed condensing. The external control function controls the heat distribution from UKV 40 to the consumer.

If the ow to the heating system can be restricted using radiator thermostats, for example, install a UKV 40 as an intermediate tank. This ensures a secure ow for the heat pump.

UKV 40 also allows a greater ow to the heating system than across the heat pump.

In some installations, so-called heating clicks occur as a result of movements during changes in temperature. To eliminate temporary changes in temperature, and thereby prevent heating clicks, install a UKV 40 after the heating installation.

UKV 40 can also be used to increase the system volume thereby prevent malfunctions.

The accumulator tank consists of a condensation-insulated steel vessel with polyurethane insulation. Outer cladding white, powder-coated sheet metal with ends of durable plastic.

The accumulator tank is designed and manufactured for a maximum cut-o pressure of 6 bar.

The working temperature is +4 to +95 °C.

andtion	NameDesigna-
d	Holes for wall bracketUL2
in	Serial number platePZ3

TRANSPORT

UKV 40 should be transported and stored in the dry.

ASSEMBLY

The accumulator tank must be installed in a dry area at a temperature that does not drop below 0 °C (frost-free).

MOUNTING

UKV 40 has to be installed vertically suspended on the wall. First install the enclosed mounting bracket on the wall, then suspend UKV 40 from the bracket.

SUPPLIED COMPONENTS

Suspension bracket.

INSTALLATION

All connections (including connections or holes that are used) must be insulated to minimise energy losses.

DOCKINGS

NOTE

These are outline diagrams. Actual installations must be planned according to applicable standards.

Volume increase as well as reduction of spikes

graph TD
    A["Device"] --> B["Processing Unit"]
    B --> C["Output Module"]
    B --> D["Storage Unit"]
    D --> B
    B --> E["Data Bus"]
    E --> A

A UKV 40 is installed as a volume increaser in those cases vent the accumulator tank by loosening the connection where the system volume in the climate system is below (XL8) at the top of the accumulator tank. the minimum recommended volume for the heat pump. 2. Fill the vessel through the drain valve.

Volume and ow increaser and reduction in heat spikes

graph TD
    A["Server"] --> B["Processing Unit"]
    B --> C["Output Module"]
    A -->|Data Flow| B
    B -->|Data Flow| C

A UKV 40 is installed as a volume and ow increaser in those cases where the system volume in the climate system is below the minimum recommended volume for the heat pump and/or the ow is restricted without control.

Volume increase as well as reduction of heat spikes

graph LR
    A["Device"] --> B["Processing Unit"]
    B --> C["Output Module"]
    B --> D["Storage Unit"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333

A UKV 40 is installed as a volume increaser in those cases where the system volume in the climate system is below the minimum recommended volume for the heat pump.

PIPE INSTALLATION

Pipe installation must be carried out in accordance with current norms and directives.

The drain valve is installed on the heating system's supply line (XL1).

The system where UKV 40 is installed must be supplied with a safety valve of max. 6 bar (0.6 MPa).

The overow pipe must be the same size as the safety valve's. Route the overow pipe from the safety valve, sloping along its entire length, and ensure that it is frost- eat of and well supported. The mouth of the overow pipe must be visible and not placed close to electrical components.

Ensure that incoming water is clean.

If uncertain, contact a plumber alternatively see applicable standards.

FILLING

Fill the accumulator tank as follows:

1. Fill the vessel through the drain valve.

2. When only water comes out of the connection (XL8) (an air-water mixture emerges initially), the connection can be closed and the accumulator tank is lled.

Technical data

DIMENSIONS

UKV 40

PIPE CONNECTIONS

UKV 40

TECHNICAL SPECIFICATIONS

		UKV 401
		39litreVolume
		16kgNet weight
		0.6 / 6MPa/barMax
		+4 - +95°CMax. opε
Part No.		088 470

ENERGY LABELLING

Supplier		NIBE
Model		UKV-40
Eciency class 1		B
Heat loss	W	28
Volume	I	39

1 Scale for the product's eciency class A+ to F.

PIPE DIMENSIONS

Connection
		G1" int.Supply line, heating systemXL1
		G1" int.Docking from heat pumpXL8

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