PAW HeatBloC K31 - DN 20 Owner's manual

PAW GmbH & Co. KG
Böcklerstr. 11, 31789 Hameln - Germany
Phone: [phone], Fax: [phone]
E-Mail: [e-mail], Web: www.paw.eu
2020/04 9932013x-mub-en – V12 1
Installation and Operation Instructions
HeatBloC®K31 - DN 20

1General information
2 9932013x-mub-en – V12 2020/04
Item no. 9932013x-mub-en – Version V12 – Issued 2020/04
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
Böcklerstraße 11
31789 Hameln - Germany

1General information
2020/04 9932013x-mub-en – V12 3
Contents
1General information .....................................................................................................4
1.1 Scope of these instructions ..........................................................................................4
1.2Designated 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........................................................................................................... 15
6.1 Pressure drop and pump characteristic curves...........................................................16
7Disposal ................................................................................................................... 17

1General information
4 9932013x-mub-en – V12 2020/04
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 heating circuits taking into consideration
the technical limit values indicated in these instructions.
The HeatBloC®must not be used in drinking 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
2020/04 9932013x-mub-en – V12 5
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 heating circuits filled
with heating water according to VDI 2035 / Ö-Norm H 5195-1.
The HeatBloC®must
not
be used in drinking water applications.
NOTICE
Material damage due to mineral oils!
Mineral oil products cause lasting damage to seals made of EPDM, whereby the sealant
properties get 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
6 9932013x-mub-en – V12 2020/04
3Product description
The HeatBloC®K31 is a preassembled group of fittings for heating circuits. 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
HeatBloC®s can also be installed on PAW distribution manifolds of 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
2020/04 9932013x-mub-en – V12 7
3.2 Function
K31 – unmixed HeatBloC®
In the unmixed HeatBloC®, the flow from the
boiler is directly pumped through the module.
Application ranges:
•Boiler charging
•Storage tank charging and discharging

3Product description
8 9932013x-mub-en – V12 2020/04
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, draining, venting
For filling, draining and venting, the mark must
be directed to "A".
The check valve is open.
Flow in both directions.

4Assembly and installation [specialist]
2020/04 9932013x-mub-en – V12 9
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.
It is thus easier to mount the insulation of the
distribution manifold.

4Assembly and installation [specialist]
10 9932013x-mub-en – V12 2020/04
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]
2020/04 9932013x-mub-en – V12 11
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 installation to
the piping must be carried out
without any tension.
8. Connect the pump.
9. Carry out a 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]
12 9932013x-mub-en – V12 2020/04
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]
2020/04 9932013x-mub-en – V12 13
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 is placed on the return pipe of the heating circuit.

5Scope of delivery [specialist]
14 9932013x-mub-en – V12 2020/04
Item number heating circuit*
Pump
Item no.
EEI
32013WP6 Wilo Para 15/6-43 N00258 < 0.20
32013WH6 Wilo-Stratos PICO 15/1-6 E1239615 < 0.20
32013GM6 Grundfos UPM3 Auto L 15-70 PP3 E1212360 < 0.20
32013GH6 Grundfos Alpha2.1 15-60 E121221 < 0.17
Position
Spare part
Item number
1 Thermometer ball valve DN 20, F ½" x ¾" int. thread N00202
2 Thermometer handle for ball valve 1" N00248
3 Dial thermometer, red scale, d=50 mm, 0-120 °C N00242
4 Dial thermometer, blue scale, d=50 mm, 0-120 °C N00243
5 Union nut G 1" 2055
6 Gasket ½", for threaded connection 1" N00129
7 Pump see following table
8 Ball valve DN 20, F ½" x 1" ext. thread 905003
9 Brass pipe DN 20, 2x 1" ext. thread, 188 mm
with check valve
N00142

6Technical data
2020/04 9932013x-mub-en – V12 15
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
16 9932013x-mub-en – V12 2020/04
K31
DN 20 (¾")
Hydraulics
Maximum pressure 6 bars
Maximum temperature 110 °C
KVS value [m3/h] 4.7
6.1 Pressure drop and pump characteristic curves
Pressure [m wc]
Pressure [kPa]
Flow rate [l/h]

7Disposal
2020/04 9932013x-mub-en – V12 17
7Disposal
NOTICE
Electrical and electronic devices must not be disposed of in the household
waste.
For your return, there are free collection points for electrical appliances and,
if necessary, additional points of acceptance for the reuse of the devices in
your area. The addresses can be obtained from your city or communal
administration.
If the old electrical or electronic device contains personal data, you are
responsible for deleting it before you return it.
Batteries and rechargeable batteries must be removed prior to the disposal
of the product. Depending on the product equipment (partly with optional
accessories), single components can also contain batteries and
rechargeable batteries.
Please observe the disposal symbols on the components.

7Disposal
18 9932013x-mub-en – V12 2020/04

7Disposal
2020/04 9932013x-mub-en – V12 19

PAW GmbH & Co. KG
Böcklerstraße 11
31789 Hameln - Germany
www.paw.eu
Phone: [phone] - 0
Fax: [phone] - 98
9932013x-mub-en – V12 2020/04