PAW HeatBloC K31 - DN 20 Owner's manual

PAW GmbH & Co. KG
Böcklerstr. 11, D-31789 Hameln, Germany
Phone: [phone], Fax: [phone]
E-mail: [email protected], Web: www.paw.eu
2015/01 9932013x-mub-en –V09 1
Installation and Operation Instructions
HeatBloC K31 - DN 20

1General information
2 9932013x-mub-en –V09 2015/01
Item no. 9932013x-mub-en –Version V09 –Issued 2015/01
Translation of the original instructions
We reserve the right to make technical changes without notice!
Printed in Germany –Copyright by PAW GmbH & Co. KG
PAW GmbH & Co. KG
Böcklerstr. 11
D-31789 Hameln

1General information
2015/01 9932013x-mub-en –V09 3
Contents
1General information .........................................................................................................4
1.1 Scope of these instructions .......................................................................................... 4
1.2 Designated use ............................................................................................................ 4
2Safety instructions ...........................................................................................................5
3Product description..........................................................................................................6
3.1 Equipment.................................................................................................................... 6
3.2 Function ....................................................................................................................... 7
3.2.1 Check valve .......................................................................................................... 8
4Assembly and installation [specialist]................................................................................9
4.1 Installation of the modular distribution manifold / wall bracket with mounting plate ....... 9
4.2 Installation of the HeatBloC and commissioning......................................................... 10
4.3 Accessories: compression fitting (not included in delivery) ......................................... 12
5Scope of delivery [specialist] ..........................................................................................13
6Technical data...............................................................................................................14
6.1 Pressure drop and pump characteristics .................................................................... 15

1General information
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1General information
Carefully read these instructions before installation and commissioning. Save these
instructions in the vicinity of the installation for future reference.
1.1 Scope of these instructions
These instructions describe the function, installation, commissioning and operation of the
unmixed HeatBloC K31. For other components of the installation, such as pumps, controllers or
the distribution manifold, see the manufacturers' instructions. The chapters called [specialist]
are intended for specialists only.
1.2 Designated use
The HeatBloC may only be used in hydronic heating closed-loop systems taking into
consideration the technical limit values indicated in these instructions. The HeatBloC must not
be used in domestic water applications. Improper usage excludes any liability claims.
Only use PAW accessories with the HeatBloC.
The wrapping materials are made of recyclable materials and can be disposed of with
recyclable materials.

2Safety instructions
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2Safety instructions
The installation and commissioning as well as the connection of electrical components require
technical knowledge commensurate with a recognised vocational qualification as a fitter for
plumbing, heating and air conditioning technology, or a profession requiring a comparable level
of knowledge [specialist]. The following must be observed during installation and
commissioning:
relevant local and national regulations
accident prevention regulations of the professional association
instructions and safety instructions mentioned in this manual
CAUTION
Personal injury and damage to property!
The HeatBloC must only be used in hydronic heating closed-loop systems filled
with heating water according to VDI 2035 / Ö-Norm H 5195-1.
The HeatBloC must not be used in domestic water applications.
NOTICE
Material damage due to mineral oils!
Mineral oil products cause lasting damage to seals made of EPDM, whereby the sealant
properties are lost. We do not assume liability nor provide warranty for damage to property
resulting from sealants damaged in this way.
It is imperative to avoid that EPDM gets in contact with substances containing mineral
oils.
Use a lubricant based on silicone or polyalkylene and free of mineral oils such as
Unisilikon L250L and Syntheso Glep 1 of the Klüber company or a silicone spray.

3Product description
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3Product description
The HeatBloC K31 is a preassembled fitting group for hydronic heating closed-loop systems.
The integrated pump can be isolated by means of ball valves and can thus be maintained
without draining of the system.
The PAW HeatBloC is designed such that it can be directly mounted onto a PAW distribution
manifold or a mounting plate with thread connections. With adaptor connections, PAW
HeatBloCs can also be installed on PAW distribution manifolds with other dimensions.
3.1 Equipment
A-1
Flow (consumer circuit)
A-2
Full metal thermometer
with immersion sleeve integrated in
the ball valve (flow)
B
Heating pump
C-1
Flow (boiler)
C-2
Return (boiler)
D-1
Check valve, can be opened
D
Return pipe
E
Design insulation
with optimised function
F-2
Full metal thermometer
with immersion sleeve integrated in
the ball valve (return)
F-1
Return (consumer circuit)

3Product description
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3.2 Function
K31 –unmixed HeatBloC
In the unmixed HeatBloC the flow from the boiler is
directly pumped through the module.
Applications:
Boiler charging
Storage tank charging and discharging

3Product description
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3.2.1 Check valve
The HeatBloC is equipped with a check valve (D-1) in the return pipe. The check valve can be
opened manually
Operation
During operation, the mark must be directed to "Z".
The check valve is closed.
Flow only in the direction of the arrow.
Filling, emptying, bleeding
For filling, emptying and bleeding the mark must be directed to
"A".
The check valve is open.
Flow in both directions.

4Assembly and installation [specialist]
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4Assembly and installation [specialist]
The HeatBloC K31 must be either installed on a PAW modular distribution manifold or a set of
wall bracket and mounting plate. The modular distribution manifold, the wall bracket and the
mounting plate are not included in delivery.
NOTICE
Damage to property!
The location of installation must be dry, load-carrying, frost-proof and protected against
ultraviolet radiation to prevent material damage to the installation.
4.1 Installation of the modular distribution manifold / wall bracket with mounting plate
Mount the modular distribution manifold or the wall bracket with mounting plate as described in
the separate instructions.
If possible, choose the largest distance to the wall. In this
way it is easier to mount the insulation of the distribution
manifold.

4Assembly and installation [specialist]
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4.2 Installation of the HeatBloC and commissioning
The HeatBloC can be installed
Option 1:
on a PAW modular distribution manifold.
Option 2:
on a mounting plate with thread
connections.
Flow
Flow
Boiler circuit
Flow
Flow
Return
Return
Return
Return
Boiler circuit
Consumer circuit
Consumer circuit

4Assembly and installation [specialist]
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1. Take off the thermometer handles
(A-2, F-2) and remove the insulating
front shell of the HeatBloC.
2. Unscrew the nuts on the lower
connections of the HeatBloC and take
out the sealing rings.
3. Flip the two nuts over the flanges.
4. Insert the sealing rings into the nuts.
5. Put the HeatBloC onto the two nuts.
6. Tighten the nuts. Take care that the
nuts do not get jammed and that the
sealing rings do not slip.
7. Connect the HeatBloC to the
installation. The connections to the
installation must be stress-free.
8. Connect the pump.
9. Carry out the pressure test and check
all thread connections.
10. Mount the insulating front shell and
the thermometer handles (A-2, F-2).
Sealing ring
Flange
(top view)
Nut
1
2
3
Flange
(side view)

4Assembly and installation [specialist]
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4.3 Accessories: compression fitting (not included in delivery)
The connection to the heating installation can be carried out fast, pressure-proof and without
soldering when you use the optionally available compression fittings.
Not included in the scope of
delivery!
1. Push the union nut ② and the cutting ring ③ onto the
copper pipe ①. The pipe must protrude at least 3 mm
from the cutting ring in order to ensure the force
transmission and the sealing.
2. Insert the support sleeve ④ into the copper pipe.
3. Insert the copper pipe with the plugged-on individual
parts (②, ③ and ④) all the way into the housing of the
compression fitting ⑤.
4. First screw the union nut ② manually.
5. Tighten the union nut ② by rotating one full turn.
Secure the housing of the compression fitting ⑤
against distort in order to avoid damaging the sealing
ring.

5Scope of delivery [specialist]
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5Scope of delivery [specialist]
NOTICE
Complaints and requests/orders of spare parts will only be processed with information on the
serial number!
The serial number can be found on the return pipe of the heating circuit.
Pump
Article number
Wilo-Yonos PARA RS 15/6-RKA
E1236036
Wilo-Stratos PICO 15/1-6
E1239615
Grundfos UPM3 Auto L 15-70 PP3
E1212360
Grundfos Alpha2 15-60
E121221

6Technical data
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6Technical data
K31
DN 20 (¾")
Dimensions
Centre distance (1)
90 mm
Width insulation (2)
180 mm
Height insulation (3)
385 mm
Installation length (4)
255 mm
Connections
Outlet (A-1, F-1)
¾" internal thread
Inlet (C-1, C-2)
1" external thread, flat sealing
Technical data
Opening pressure check valve (D-1)
200 mm wc, can be opened
Materials
Valves and fittings
Brass
Gaskets
EPDM / NBR
Insulation
EPP

6Technical data
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K31
DN 20 (¾")
Hydraulics
Maximum pressure
8 bars
Maximum temperature
110 °C
KVS value [m3/h]
4.3
6.1 Pressure drop and pump characteristics
Pressure [m wc]
Pressure [kPa]
Flow rate [l/h]

PAW GmbH & Co. KG
Böcklerstraße 11
D-31789 Hameln, Germany
www.paw.eu
Phone: [phone] - 0
Fax: [phone]
9932013x-mub-en –V09 2015/01