PAW HeatBloC K34R Owner's manual

Installation and Operation Instructions
HeatBloC® K34R
DN 25 / DN 32
DN 25 DN 32
PAW GmbH & Co. KG
Böcklerstraße 11, 31789 Hameln, Germany
Phone: [phone], Fax: [phone]
E-mail: [email protected], Web: www.paw.eu
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Table of Contents
1 General Information...................................................................................................3
1.1 Scope of these instructions........................................................................................3
1.2 Designated use........................................................................................................... 3
2 Safety instructions......................................................................................................4
3 Product description.................................................................................................... 5
3.1 Equipment...................................................................................................................6
3.2 Function.......................................................................................................................7
3.2.1 Check valve and non-return valve.............................................................................8
3.2.2 Pump [specialist].........................................................................................................9
3.2.3 3-way mixing valve [specialist]..................................................................................9
3.3 Weather compensated controller PWR6...................................................................13
3.4 Settings for the weather compensated controller PWR6 when used as return
flow temperature maintenance.................................................................................13
3.5 Installation of the weather compensated controller PWR6.................................... 14
4 Mounting and installation [specialist]...................................................................... 15
4.1 Installation and commissioning of the HeatBloC®...................................................15
4.2 Accessories: Cutting-ring compression fitting (not included in the scope of
delivery).......................................................................................................................18
5 Scope of delivery [specialist]..................................................................................... 19
5.1 Spare parts DN 25....................................................................................................... 19
5.2 Spare parts DN 32....................................................................................................... 21
6 Technical data............................................................................................................. 23
6.1 Pressure drop and pump characteristic curves DN 25.............................................25
6.2 Pressure drop and pump characteristic curves DN 32.............................................25
7 Disposal....................................................................................................................... 26
Table of Contents
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1 General 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 installation, commissioning, functioning and the operation of a mixed
HeatBloC®.
For other components of the installation, such as the pump, the controller or the modular distribution
manifold, please observe the instructions of the corresponding manufacturer. The chapters called
[specialist] are intended for specialists only.
1.2 Designated use
The product may only be used in heating circuits taking into consideration the technical limit values
indicated in these instructions.
It must not be used in drinking water applications.
Improper usage excludes any liability claims.
This product complies with the relevant directives and is therefore labelled with the CE mark. The
Declaration of Conformity is available upon request, please contact the manufacturer.
Only use PAW accessories with the product.
1 General Information
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2 Safety 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 these instructions
CAUTION
Personal injury and damage to property!
The product must only be used in heating circuits filled with heating water according
to VDI 2035 / Ö-Norm H 5195-1.
►The product 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
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 prevent the EPDM sealing elements from making contact with substances
containing mineral oils.
►Use a silicone- or polyalkylene-based lubricant free of mineral oil such as Unisilikon L250L
and Syntheso Glep 1 from Klüber or a silicone spray.
2 Safety instructions
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3 Product description
The HeatBloC® is a preassembled group of fittings for heating circuits. The pump can be isolated by
means of the ball valves and the mixing valve. The pump can thus be maintained easily without
draining the heating circuit system.
The PAW HeatBloC® is designed such that it can be directly mounted onto a distribution manifold or a
mounting plate. With adaptor connections, PAW HeatBloC®s can also be installed on distribution
manifolds with other dimensions.
The product is prepared for the operation as a supply group for various heating applications, such as
for panel heating systems or radiator circuits - with a flow temperature that always reacts to the
variable weather conditions. The bypass of the mixing valve can, depending on the application and
the heat generator, be completely opened (e.g. radiant floor heating) or partly closed (radiators). An
external sensor as well as a source sensor are included in the scope of delivery, which allow to use the
weather compensated flow temperature.
The product can be easily converted into a group for return flow temperature maintenance or to a
controlled circuit with constant value.
Optionally, a room control unit can be connected to the PWR6 which allows a more detailed control of
the flow temperature.
3 Product description
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3.1 Equipment
A-1 Flow to the consumer circuit
A-2 All-metal thermometer with immersion sleeve,
integrated in the ball valve (flow)
B Heating pump
C 3-way mixing valve with adjustable bypass
0-50 %
C-1 Flow from the heat generator
C-2 Return to the heat generator
C-3 Non-return valve, can be opened
C-4 Weather compensated controller PWR6
D Return pipe
D-1 Check valve, can be opened
E Design insulation with optimised function
F-1 Return from the consumer circuit
F-2 All-metal thermometer with immersion sleeve,
integrated in the ball valve (return)
3 Product description
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3.2 Function
3-way mixing valve with bypass 0-50%
The flow temperature of the heating circuit is controlled by
the integrated mixing valve. Hot water from the boiler and
cold return water are mixed to obtain the desired flow
temperature of the heating circuit. The mixing valve is
adjusted by means of the weather-compensated controller
PWR6.
Due to the premixing rate that must be adjusted at the
bypass of the mixing valve, a certain amount of cold return
water is added to the flow water. The 3-way actuator can
thus work over the whole adjustment range (0-100 %),
although only a small amount of water from the boiler is
necessary.
Application range:
●Consumer circuits with
weather-compensated low-
temperature heating systems
controlled by a mixing valve
●Consumer circuits with high
flow rates, e.g. radiant floor
heating and radiant panel
heating systems
●Return flow temperature
maintenance (then, bypass is
closed)
Example:
Panel heating systems operate on a low temperature
level with small temperature differences, but with high
flow rates. It is therefore sufficient to add a small amount of
hot water to the "warm" return water.
For the use as a return flow temperature maintenance,
the bypass in the mixing valve must be completely closed
so that the entire boiler output is available for the
consumer circuits.
3 Product description
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3.2.1 Check valve and non-return valve
The product is equipped with a check valve and with a non-return valve. The valves can be opened.
operation
During operation, the markings must point to "Z".
●The check valve and the non-return valve are
closed.
●Flow only in the direction of the arrow.
filling, draining, venting
For filling, draining and venting, the markings must
be directed to "A".
●The check valve and the non-return valve are
closed.
●Flow in both directions.
3 Product description
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3.2.2 Pump [specialist]
The pump can be completely isolated. It can be replaced and maintained without draining the heating
installation.
Isolation of the pump
1. Disconnect the expansion tank from the installation.
2. Close the ball valves in the flow and the return (A-2, F-2).
3. Remove the actuator from the mixing valve.
4. Turn the bypass screw of the mixing valve such that the slot is in a vertical position.
5. Turn the nose of the valve cock such that the flow to the pump is closed (for flow on the right:
nose points downward, for flow on the left: nose points to the right; see below).
The mixing valve is now closed and drop tight.
3.2.3 3-way mixing valve [specialist]
The 3-way mixing valve (C), driven by an electric actuator, adjusts the flow temperature of the
consumer circuit to the required value by means of the flow sensor and the controller.
The mixing valve is equipped with a bypass which must be operated separately. Via this bypass, cold
return water is added to the flow of the HeatBloC®. This can result in an increase of the flow rate of the
HeatBloC®.
Mixing valve with flow on the right:
Position 10 / Bypass geschlossen:
passage, no mixing
flow temperature consumer = flow temperature heat
generator
Position 0:
100% mixing
flow temperature consumer = return temperature
consumer
3 Product description
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1. During commissioning, determine the optimum bypass position for the operation of the
installation. Find out and check the correct adjustment through a trial-and-error process.
If the slot of the bypass screw is in a vertical
position, the bypass is closed.
If the HeatBloC® K33R / K34R is used as a return
flow temperature maintenance, the bypass must
be closed!
If the slot of the bypass screw is in a horizontal
position, the bypass is completely open. A
maximum flow rate from the return to the flow
line is thus enabled. This adjustment may be
necessary for radiant floor heating systems which
require a very high water flow volume. Because of
the bypass, the flow temperature decreases and
the control is affected.
2. Check the position of the bypass during operation. Make sure that the flow rate is sufficient and
that the desired temperature is reached.
Change of the flow line [specialist]
Dismounting of the mixing valve
1. Take off the thermometer handles (A-2, F-2) and remove the insulating front shell.
2. Take the group of fittings out of the insulating back shell.
3. Dismount the mixing valve (C).
3 Product description
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Retrofitting of the mixing valve
1. Loosen the screw (1).
2. Take off the rotary knob (2) from the cock rod.
3. Loosen the screws (3).
4. Remove the cover plate (4).
5. Loosen the two screws (5).
6. Remove the front plate (6).
7. Extract the sealing bush (7) with the cock plug (8) from the housing of the mixing valve.
8. Loosen the screws (10) on the rear side of the mixing valve.
9. Take off the cover (9) on the rear side of the mixing valve and fix it on the other side of the mixing
valve by using the screws (10).
10. Insert the sealing bush (7) with the cock plug (8) into the channel of the mixing valve.
3 Product description
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11. Screw down the front plate (6) using the screws (5).
Mixing valve with flow on the right Mixing valve with flow on the left
12. Turn the cover plate (4) in such a way that the marking PAW is at the bottom and that the scale is
positioned as shown in the figure above.
13. Fix the cover plate (4) by using the screws (3).
14. Put the rotary knob (2) onto the cock rod.
Only for K34R: Turn the cock plug to the mixing valve position "5". Then, the controller PWR6 can
directly be mounted.
15. Fix the rotary knob (2) on the cock plug (8) by using the screw (1).
Retrofitting and commissioning of the heating circuit
1. Interchange the return pipe (D) and the flow pipe with the pump (B).
Consider the flow direction of the pump!
Turn the pump head such that the terminal box is directed to the top or to the centre of the
group of fittings.
2. Dismount and interchange the ball valves. The temperature sensor must be mounted in the flow
ball valve!
3. Mount the HeatBloC® and connect it to the installation.
4. Check all union nuts before commissioning and firmly tighten them if necessary.
5. Mount the insulation only after having carried out a pressure test. Mount the thermometer
handles (A-2, F-2) in a final step.
3 Product description
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3.3 Weather compensated controller PWR6
The weather-compensated controller PWR6 is prepared for the direct mounting onto the 3-way
bypass mixing valve of the product.
If the controller is connected to the power supply for the first time, an initial commissioning must be
carried out. The commissioning is carried out automatically in four steps:
language selection - selection of the hydraulic scheme (area, radiator,...) - gradient of the heating
curve - opening direction of the actuator of the mixing valve.
When the controller is delivered, the default settings are: German - radiator heating - 0.7 - at the right
3.4 Settings for the weather compensated controller PWR6 when used as return flow
temperature maintenance
Application Flow line required modifications at the
heating circuit
required settings at the
controller - see
separate instructions
radiant panel
heating
pump on the
right, transports
upwards
- if necessary, adjust
hydraulic scheme and
heating curve
pump on the left,
transports
upwards
retrofitting of the mixing valve
and of the heating circuit for flow
on the left (see chapter 3.2.2 and
3.2.3)
change the direction of
rotation to "left"
if necessary, adjust
hydraulic scheme and
heating curve
radiator
heating
pump on the
right, transports
upwards
close mixing valve bypass partly
or completely
-
pump on the left,
transports
upwards
retrofitting of the mixing valve
and of the heating circuit for flow
on the left (see chapter 3.2.2 and
3.2.3)
close mixing valve bypass
change the direction of
rotation to "left"
3 Product description
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3.5 Installation of the weather compensated controller PWR6
for mixing valve with flow on the right:
1. Turn the rotary knob of the mixing valve into
position 5.
2. When the weather compensated controller PWR6 is
delivered, it is in centre position.
By disengaging the gear (●push○), you can adjust
the controller at the rotary knob. In this way, you can
test if the actuator / rotary knob is mounted
correctly.
3. Mount the stop bolts, if necessary.
4. Push the weather compensated controller PWR6 on
the rotary knob of the mixing valve and mount it
onto the two stop bolts (see illustration).
The weather compensated controller must be
mounted according to the adjacent illustration,
5. Re-engage the gear (●push○).
6. Set the controller to automatic operation mode.
7. Mount the flow contact sensor, the external sensor
and the source sensor (immersion sensor).
Connect these with the controller.
8. Only if a room control unit is available: connect it
also to the controller via a bus line.
9. After the mounting is completed, the safety plug
can be plugged into a corresponding socket.
10. For the commissioning, please observe the
instructions of the controller.
3 Product description
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4 Mounting and installation [specialist]
The HeatBloC® can either be mounted on a distribution manifold or on a wall bracket. The distribution
manifold and the wall bracket are opt. accessories and are thus not included in the scope of delivery.
WARNING
Damage to property!
The installation site must be dry, stable, frost-proof and protected against ultraviolet radiation in
order to prevent material damage of the installation.
4.1 Installation and commissioning of the HeatBloC®
The HeatBloC® can be mounted
Option 1:
on a PAW modular distribution manifold.
Option 2:
on a mounting plate with transition thread
connections.
Consumer circuit
return flow
flow return
Heat generator
Consumer circuit
return flow
return flow
Heat generator
4 Mounting and installation [specialist]
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Option 3:
directly on a wall bracket
Please observe the separate and respectively corresponding instructions regarding the installation
of the distribution manifold, of the mounting plate and of the wall bracket.
4 Mounting 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.
If a PAW modular distribution manifold or
transition connection is used:
3. Put 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. Make sure that the nuts
do not get jammed and that the sealing
rings do not slip.
7. Connect the HeatBloC® to the installation
by using the pipes. 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).
4 Mounting and installation [specialist]
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4.2 Accessories: Cutting-ring compression fitting (not included in the scope of delivery)
The connection to the heating installation can be carried out fast, pressure-proof and without
soldering if you use the optionally available compression fittings.
1. Push the union nut ②and 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 ④into the copper pipe.
3. Insert the copper pipe with the plugged-on
individual parts ②, ③and ④as far as possible
into the body of the compression fitting ⑤.
4. First, screw the union nut ②manually.
5. Tighten the union nut ②by rotating one full
turn. Secure the body of the compression fitting
⑤against distort in order to avoid damaging the
sealing ring.
Not included in the scope of delivery!
4 Mounting and installation [specialist]
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5 Scope of delivery [specialist]
NOTICE
Serial number
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 product.
5.1 Spare parts DN 25
5 Scope of delivery [specialist]
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Position Spare part Item number
1 Thermometer ball valve DN 25, flange 1" x 1" int. thread N00244
2 Thermometer handle for thermometer ball valve 1" N00248
3 Dial thermometer, red scale, d = 50 mm, 0-120 °C N00242
4 Union nut G 1½" N00269
5 Gasket 1" for threaded connection 1½" N00131
6 Pump see following table
7 Weather compensated controller PWR6, 6 Nm, 230 V, external sensor,
flow sensor and boiler sensor
723681
8 Brass pipe DN 25, 2 x 1½" ext. thread, 180 mm, with check valve N00018
9 Insulation for HeatBloC® DN 25 N00016
10 Dial thermometer, blue scale, d = 50 mm, 0-120 °C N00243
no pos. Sealing set for mixing valve 37013
Item no. heating circuit Pump Item no. pump EEI
360663MWP6 Wilo Para SC 25/6-43 N00259 < 0.20
360663MWP8 Wilo Para SC 25/8-60/O N00271 < 0.20
360663MWN06 Wilo Yonos PICO 25/1-6 N00214 < 0.20
360663MGL9 Grundfos UPML 25-95 Auto N00396 < 0.23
360663MGM6 Grundfos UPM3 Auto L 25-70 PP3 N00237 < 0.20
360663MGH6 Grundfos Alpha2.1 25-60 N00236 < 0.17
360663M - - -
5 Scope of delivery [specialist]
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