PUB2 300 - Heat pump Nibe - Free user manual and instructions

Product Type	Air-to-water heat pump
Brand	Nibe
Model	PUB2 300
Dimensions (H x W x D)	Approx. 600 x 600 x 800 mm
Weight	Approx. 80 kg
Power Supply	230 V, single phase, 50 Hz
Heating Capacity	Up to 10 kW (depending on conditions)
Hot Water Capacity	Integrated 300 L tank (model PUB2 300)
Refrigerant	R410A (check manual for exact type)
Energy Efficiency Class	A++ (typical)
Functions	Heating, cooling, domestic hot water production
Control	Digital display and remote control
Installation	Indoor unit with separate outdoor unit (split system)
Noise Level	~30 dB (indoor unit)
Maintenance	Regular cleaning of air filter; annual professional check
Safety Features	Overheat protection, freeze protection, pressure relief valve
Spare Parts Availability	Available through Nibe authorized service centers
Warranty	2 years (standard, may vary by region)

Frequently Asked Questions - PUB2 300 Nibe

How do I install the Nibe PUB2 300 heat pump?

Installation should be performed by a qualified technician. Ensure proper location, electrical connection, and plumbing for hot water tank. Refer to the manual for detailed installation instructions.

What is the recommended maintenance schedule?

Clean the air filter every 3 months and schedule annual professional inspection to check refrigerant levels and system components.

How can I reset the system after a fault?

Turn off the unit, wait 5 minutes, then restart. If the problem persists, check error codes in the manual or contact a service technician.

What refrigerant does the PUB2 300 use?

It uses R410A refrigerant. Check the label on the outdoor unit for confirmation. Some models may use R32.

How do I adjust the temperature settings?

Use the control panel to set desired heating and hot water temperatures. Refer to the manual for advanced settings.

How efficient is the PUB2 300 heat pump?

It has an energy efficiency class up to A++, with a COP (Coefficient of Performance) around 4.0 under standard conditions.

Can the PUB2 300 provide cooling as well?

Yes, it is a reversible heat pump capable of cooling. Switch modes via the control panel.

What should I do if the water pressure drops?

Check the expansion vessel and pressure gauge. Refer to the manual for repressurizing the system to the recommended pressure.

Where can I find spare parts for the PUB2 300?

Contact authorized Nibe service centers or visit the Nibe website. Use the model number to ensure compatibility.

How noisy is the indoor unit?

The indoor unit operates at approximately 30 dB, which is very quiet and suitable for indoor installation.

USER MANUAL PUB2 300 Nibe

PUB2/PUB2 DS 160-500

EN User and Installer Manual - Accumulator tank

Three large cylindrical industrial tanks with black bases and metallic caps, no visible text or symbols.

Pure electrical circuit lines without any symbols

Table of Contents

Svenska

4Viktig information

6Till användaren

7Till installatören

The serial number can be found on top of the pro

SAFETY INFORMATION

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

The manual must be left with the customer.

Caution

proced- You need the product's (14 digit) serial number for servicing and support.

RECOVERY

This appliance can be used by chil aged from 8 years and above and with reduced physical, sensory or m

Leave the disposal of the packaging to the ir staller who installed the product or to special mental waste stations.

capabilities or lack of experience and

Do not dispose of used products with normal

knowledge if they have been given vision or instruction concerning use appliance in a safe way and unde

superhousehold waste. It must be disposed of at a spec the waste station or dealer who provides this type of service.

the hazards involved. Children shall play with the appliance. Cleaning a maintenance shall not be made by without supervision.

not proper disposal of the product by the user results administrative penalties in accordance with current legislation children

Rights to make any design or technical modi cations are reserved.

©NIBE 2019.

SYMBOLS

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.

GENERAL

PUB2/PUB2 DS 160-500 is designed and manufactured according to good technical practice order to ensure safe usage.

INSPECTION OF THE INSTALLATION

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

				DateSignat
Hot water (page 23)
	Shut off valves
Cold water (page 23)
	Shut off valves
	Non-return valve
	Safety valve
	Vacuum valve
	Mixing valve

For the User

MAINTENANCE

SAFETY VALVE (NOT SUPPLIED)

The water heater's safety valve sometimes releases a little water after hot water usage. This is because the cold water, which enters the water heater, expands when heated causing the pressure to rise and the safety valve to open.

The function of the safety valves must be regularly checked, about four times a year, to prevent clogging.

To inspect the valve, open the safety valve manually and check that water is owing through the over ow pipe. If this is not happening, the safety valve is defective and must be replaced.

EMPTYING

1. Close the incoming ow to the charge coil.
2. Shut off the incoming cold water.
3. Loosen the cover of the drain valve and install a suitable hose.
4. Open the drain valve.

During draining, air must be let into the water heater by loosening a hot water connector (XL4) or opening a hot water tap.

To ensure that the water heater drains completely, a hose or a pipe with an outlet below the lowest level of the water heater must be attached to the drain connection or drain valve. When installed in a location that is exposed to the risk of frost, the water heater must be emptied whenever it is not in operation. Freezing could result in the water heater bursting.

SERVICE

For service, contact the installer. Serial number (PF3) (14 digits) and installation date should always be stated. Only replacement parts supplied by NIBE may be used.

For the Installer

GENERAL

PUB2/PUB2 DS 160-500 is a series of accur tanks/water heaters, suitable for connection to oil boilers.

The water tank consists of a steel jacket, lining to protect against corrosion. PUB2/PUB2500 is equipped with two copper coils.

PUB2/PUB2 DS 160-500 is designed and man for a maximum cut-off pressure of 10 bar. permitted temperature is 90 °C.

The max. working pressure in the coil is 20 max. working temperature in the coil is 120

On 500 L containers, the insulation is made of Neopor and polyester eece, which provides excellent heat insulation. The insulation and the grey plastic outer cladding can easily be removed to simplify moving the product, for example through doorways.

On the other vessel sizes, the insulation is polyurethane, which provides excellent heat insulation. The outer shell is grey plastic.

PUB2/PUB2 DS 160-500 is equipped with submerged tube for control of hot water heating. Cover discs

TRANSPORT

PUB2/PUB2 DS 160-500 should be transported and stored vertically in a dry place. The PUB2/PUB2 DS 160-500 may, however, be carefully laid on its back when being moved into a building.

ASSEMBLY

PUB2/PUB2 DS 160-500 must only be installed vertically

PUB2/PUB2 DS 160-500 is unscrewed from the pallet and lifted into position. (use the lifting eye on the date PUB2 DS 500).

gas or Position PUB2/PUB2 DS 160-500 on a rm base that can take the weight, preferably on a concrete oor th a copper foundation. Use the product's adjustable feet to obtain DS 160- a horizontal and stable set-up.

The area where the PUB2/PUB2 DS 160-500 is located must be frost-proof and equipped with a oor drain.

SUPPLIED COMPONENTS

Insulation plug

COMPONENT POSITIONS

PUB2 500PUB2 160 - 300

	NameDesignation
	Vacuum valve (not included in delivery)FL6
	Safety valve (not included in delivery)FL10
	Mixer valve (not included in delivery)FQ1
	Tapping valveQM4
	Shut-off valve (not included in delivery)QM40
	Non-return valve (not included in delivery)RM1
	Submerged tube, docking heat pump BT6, ∅ 11 mm (int)UA1
	Adjustable feetUL1
	Lifting eyeXR1
	Serial number platePF3

	NameDesignation
	Tapping valveQM4
	Submerged tube, docking heat pump BT6, ∅ 11 mm (int)UA1
	Submerged tube, external heat source, solar, ∅ 11 mm (int)UA2
	Adjustable feetUL1
	Lifting eyeXR1
	Serial number platePF3

REMOVING THE INSULATION

The insulation on PUB2 DS 500 can be removed to facilitate work in con ned spaces.

• Unscrew the lifting eye at the top.
• Lift off the plastic top and the top insulation.
• Remove the joining plates holding the insulated jacket halves together. Do not use any tools when dismantling.
• Unhook and remove the halves of the insulated jacket; the outer diameter is approx. 200 mm less without the insulated jackets.

The gure shows PUB2 DS 500 with

Insulation removedDo not use any tool

insulation

ling the joining plate.

Diagram of a cylindrical device with internal components and an upward arrow, no text or symbols present

Illustration of a hand holding a rectangular object with a curved line above, showing a motion arrow (no text or symbols)

Simple line drawing of a vertical structure with a diagonal line and a circular symbol below (no text or labels)

Diagram of a cylindrical device with multiple circular buttons and directional arrows indicating flow or movement (no text or symbols present)

Abstract line drawing of layered building structures with arrows indicating direction (no text or symbols)

Carry out assembly in reverse order.

Install the enclosed insulation plugs around each connection, and in the hole for the lifting eye. Finally, t all the enclosed cover discs on each connection by pressing them over the connections.

In certain cases, more insulation plugs are enclosed than are required.

Caution

Fit the cover discs and the insulation plugs before installing the pipe.

Caution

Fit the enclosed cover discs before pipe. This installable equivalent to a water ow of approx. 1650 atation. The cover discs, with self-adhesive a ∅22 mm charge coil (PUB2/PUB2 DS 160-500). Backs, must be installed on the relevant connection. The supply temperature to the charge coil must not be connected by pushing them over the connections. 120 °C and the operating temperature in All connections (including connections or HUB2/PUB2 DS 160-500 must not exceed 90 °C. left by the lifting eyes that are not used) must be insulated to minimise energy losses. The risk of air bubbles in the charge coil is eliminated because the intake connection is the highest point.

When determining the water speed, 1.5 m/s should be exceeded in the event of continuous charge ow.

PRESSURE DROP DIAGRAM

PIPE INSTALLATION

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

NOTE

PUB2/PUB2 DS 160-500 must be lled water before commencing charging via charge coil.

PUB2/PUB2 DS 160-500 must be tted with ite valves, such as a safety valves, shut-off return valves and vacuum valves.

PUB2/PUB2 DS 160-500 must be supplied with a mixing valve, which limits the temperature of outgoing hot water to 60 °C. If this valve is not tted, some other measure must be taken to prevent the risk of building/PUB 5001

An internal support bush must be tted when a plastic or annealed copper pipe is used. An over ow pipe must be routed from the safety valve to a suitable drain. The overflow pipe must be the same size as the safety valve. Route the over ow pipe from the safety valve, sloping along its entire length, and ensure that it is frost-proof and well supported. The mouth of the over ow pipe must be visible and not placed close to electrical components.

Ensure that incoming water is clean. When using a private well, it may be necessary to supplement with an extra water liter.

If uncertain, contact a plumber alternatively see applicable standards.

FILLING

Fill the water heater as follows:

1. Open a hot water tap in the system.
2. Open the shut-off valve for the incoming cold water. Afterwards, this valve must be fully open during operation.
3. The hot water tap can only be shut off when the water heater is lled, which is when only water comes out of the tap (initially an air-water mixture comes out of the tap).

Primary side (coil)

Technical data

DIMENSIONS

PUB2 DS 500PUB2 DS 160-300

PUB2 500

				PUB2	DSPUB2
					3001603
					1701701
					1151151
					30-6530-6
					6006006
					3002653
					3003606
G	45	45	50	45	50
H	980	1210	1380	980	1380

Approx. dimensions in mm

PUB2 500PUB2 160-300

PUB2 DS 500PUB2 DS 160-300

			PUB2 500PUB2 160-30
			∅ 35 mm∅ 22 mm∅
			∅ 35 mm∅ 22 mmH
		∅ 22 mmDocking connection,
		∅ 22 mmDocking connection,
		∅ 22 mmDocking connection,
		∅ 22 mmDocking connection,
XL54	Connection for thermometer or hot water circulation	G 12

*Only PUB2 DS 300 and PUB2 DS 500

TECHNICAL SPECIFICATIONS

						PUB2 DSPUB2
								5003001605003002
1								CCBCCBBEf cienc
								8526006008526006
insulation ∅								668—668—mmDia
								17571380980175713
								19701525401701900
Net weight	kg	56	68	73	140	63	100	158
Max pressure, water heater	bar/MPa	10/1,0
Max. pressure, charge coil	bar/MPa	20/2,0
Max. working temperature in water heater	theC	90
Max. working temperature in coil	theC	120
Length, coil	m	4,25	4,25	6,3	6,3	7,4	2x7,4	2x7,4
Heating surface, coil	m^2	1,4	1,4	1,9	1,9	1,8	2x1,8	2x1,8
Primary ow	l/h	1200	1200	1300	1300	100	2x1000	2x1000
80/10-45°C2						Continuous hot water		1504150600880880
Heat transfer 80/10-45°C2	kW	26	29	39	39	24	47	47
Heating time 80/10 - 60°C3	min.	28	35	35	62
Corrosion protection		Copper
Part No.		087 400	087 410	087 420	081 086	087 440	087 460	081 087

^1 Scale for the product's efficiency class A+ to F.
^2 The capacity refers to use for continuous hot water, where the accumulated amount of hot water is not included.
^3 The values apply at a primary ow of 1000 l/h

ENERGY LABELLING

Supplier		NIBE
Model		PUB2 160	PUB2 210	PUB2 300	PUB2 500	PUB2 DS 160	PUB2 DS 300	PUB2 DS 500
Energy efficiency class		B	B	C	C	B	C	C
Heat loss	W	53	62	92	111	53	92	111
Volume	I	160	210	270	500	160	270	500

Nederlands

This manual is a publication from NIBE Energy Systems. All product illustrations speci cations are based on current information at the time of the publication's NIBE Energy Systems makes reservations for any factual or printing errors in