Minib NK2 Installation Manual

INSTALLATION GUIDE – WALL-MOUNTED CONVECTOR NK2

1. UNIT DESCRIPTION

A wall-mounted NK2 heating unit equipped with fans.
Since the heater fully uses physical laws of thermody­namics it represents one of the most effi cient methods
of interior heating.

Benefi ts of heating convectors:

High output
Silent operation or low noise for units with fan
Lightweight compared to heating units with similar

output which use radiation principle
Low hot water consumption
Short response time
Design
Minimum requirements for operation and mainte-

nance
A great advantage of these convectors is the small

required installation space. This is benefi cial par-

ticularly in a situation where the heating units are

used in interior renovation and replacement of old

heaters with new ones and in situations where

suffi cient heating output is required.

Contents of the box Position NK2

Convector

Plastic cover

7 2

Grille

6 1

Convector body

5 1

Support member

13 1

Heat exchanger

3 1

Grille reinforcement

8 1

Cable grommet

2 1

Fan

15 1-2

EB control unit

1 1

Accessories

Axial radiator valve 11 1

Thermostatic head 12 1

Control Screw fi tting 10 1

3. TECHNICAL PARAMETERS

Use: dry environment, according to the specifi cation.

Maximum operating pressure: 1 MPa.

Maximum operating temperature: 110 °C.

Operating medium: water. Water may not be mixed

with other substances, such as antifreeze fl uids!

Environment: interiors with temperatures ranging

between +5 °C and +40 °C.

1. EB CONTROL UNIT – fan motor control unit.

2. CABLE GROMMET – intended for cable installation
to the control unit.

3. HEAT EXCHANGER – copper pipes with pressed­on aluminum fi ns through which the heating water
fl ows.

Each position in the table corresponds to Figure No. 1.

Select the correct convector type from the cata-

logue – see paragraph 4.1.

Select the correct convector position and location

– see paragraph 4.2.

4.1 Suitable Convector Type

Decide whether the convector will act as the main
source of heat, or an additional heating element or, as
the case may be, as a heat barrier.

As the main source of heat in your apartment /
room, the convector should suffi ciently cover the
entire thermal loss of the room. Therefore, always
choose a heating unit with a capacity that is higher
than the thermal loss of your apartment, room, or
other areas.

All wall-mounted convectors are designed for dry
environment. A dry environment is an environment
where the average annual relative humidity does
not exceed 75%. A wet environment is an environ­ment where such average annual value is equal to or
greater than 75% or where the convector is exposed
to direct contact with water. In terms of convector
selection, a dry environment is in general any envi­ronment where no precipitation of vapor occurs in the
convector unit.

FIG. 1: COMPONENTS AND DESCRIPTION

OF THE PARTS OF THE CONVECTOR

Design of the heat exchanger

differs depending on the con­vector model.

4. AIR VENT VALVE – used for
venting (bleeding) the convec­tor.

5. CONVECTOR BODY – aluminum
convector body.

6. CONVECTOR GRILLE – a design
piece within the convector. It
must not be covered!!!

7. PLASTIC COVER – used for
attaching the grille to the con­vector body.

8. GRILLE SUPPORTING MEM­BER – for supporting the con­vector grille.

9. ADJUSTING SCREW – used for
vertical positioning of convec­tor on the wall.

10. CONTROL SCREW FITTING –
a valve that controls / adjusts
the heating water fl ow.

11. AXIAL RADIATOR VALVE –
a valve used for fl ow regulation.

12. THERMOSTATIC HEAD – used
for manual regulation.

14. RUBBER ANTI-VIBRATION PAD – for fl exible
mounting of the fan module.

15. FAN – used for forced convection.

13. CONVECTOR SUPPORT MEMBER – a fi xing part of
the wall-mounted convector, supporting part for
the convector body and heat exchanger.

4.2 Convector Position

Wall-mounted convectors MINIB are intended for in­stallation on the wall below window frames or sills.
Make sure to follow the principle that the distance
from the fl oor should never be less than 110 mm (Fig­ure 2). Never cover the upper grille of the convector ­this would result in fl ow reduction and a considerable
decrease in the convector output.

2. CONTENTS OF THE BOX

4. BEFORE INSTALLATION

FIG. 2: For all models – convector position.

Dimensions for marking of mounting holes

Convector length 900 1 000 1 250 1 500 1 750 2 000

NK2

A 760 860 1 110 1 360 1 620 1 860

B 706 804 1 054 1 304 1 564 1 804

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

Connect the lines using the supplied standard acces­sories. An axial radiator valve is connected to the water
inlet of the heat exchanger. Control fi tting connected
with the outlet line via fl exible hose is to be installed on
the outlet line. Insert O-rings between the axial radia­tor valve / control fi tting and the heat exchanger. Use
gaskets for all the other connections.

6. CONNECTION OF THE FITTINGS

HEAD OFFICE

MINIB,a.s.
Střešovická 465/49, 162 00 Prague 6
Czech Republic
Tel.: [phone], Fax: [phone]
E-Mail: [e-mail], www.minib.cz

PRODUCTION

Manufacturing plant of MINIB,a. s.
Býkev u Mělníka 84, 276 01 Býkev
Czech Republic

WWW.MINIB.CZ

7. VENTING THE UNIT

FIG. 4: Screw the adjusting stop dog of the supporting member

to a central position.

FIG. 5: Follow the instructions and installation dimensions

specifi ed in paragraph 4.2. in Fig. 3. Mark holes for screw
anchors and for the connection of the power supply cable, if
applicable (for models with a fan).

FIG. 6: Mark the position of the pipes. The upper pipe is the

outlet, the lower pipe is the inlet.

FIG. 7: Drill holes for fi xing, for the pipes and the power supply

cable, install screw anchors.

FIG. 8: Using the screws, attach the support member in the

prepared screw anchors on the stop dog and on the opposite
end. Do not tighten. Adjust the support member into horizon­tal position using the adjusting stop dog, tighten the screws.

FIG. 9: Position the heat exchanger on the supports, install the

pipes and connect valves as specifi ed in paragraph 6.

FIG. 10: Connect the cable through the grommet into the

control unit according to instructions and the type of control
selected. Check the function of the fan.

FIG. 11: Place the body, the grille

and the covers on the convector support member.

FIG. 12: Connect the thermostatic head.

FIG. 13: Set the axle alignment of the unit cover with the wall

using the adjusting screws which are located in the lower
part of the convector body.

FIG. 3a: Upper edge of the NK2 supporting member - side view.

5. INSTALLATION

› Vent (bleed) the unit using the air vent valve dur-

ing the fi rst use as necessary. The air vent valve is
located on the heat exchanger – see Fig. 9.

› For additional options see the catalog or visit:

http://www.minib.com/

FIG. 3: NK2 (for upper edge see Fig. 3a).

Air vent valve