PAW HeatBloC K38 Owner's manual

Installation and Operation Instructions
HeatBloC® K38
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...................................................................................................................5
3.2 Function.......................................................................................................................6
3.3 Mixing valve [specialist].............................................................................................7
3.4 Accessories: Actuator (optional)............................................................................... 8
3.5 Check valve................................................................................................................. 9
4 Mounting and installation [specialist]...................................................................... 10
4.1 Installation and commissioning of the HeatBloC®...................................................10
5 Scope of delivery [specialist]..................................................................................... 13
5.1 Spare parts DN 25....................................................................................................... 13
5.2 Spare parts DN 32....................................................................................................... 15
6 Technical data............................................................................................................. 17
6.1 Pressure drop and pump characteristic curves DN 25.............................................18
6.2 Pressure drop and pump characteristic curves DN 32.............................................18
7 Disposal....................................................................................................................... 19
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® K38 is a preassembled group of fittings for heating circuits.
The PAW HeatBloC® is designed such that it can be directly mounted onto a PAW distribution
manifold or a mounting plate with thread connections.
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 4-way mixing valve
C-1 Flow from the heat generator
C-2 Return to the heat generator
D Return pipe
D-1 Check valve
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
4-way mixing valve
K38 allows to keep up the boiler return temperature and to
maintain a minimum boiler flow rate (with boiler circuit
pump). A part of the flow water from the boiler is mixed
into the return from the consumers, depending on the
adjustment of the mixing valve. A boiler circuit pump is
usually necessary.
When K38 is mounted on a distribution manifold, a boiler
circuit pump is mandatory. In this case the 4-way mixing
valve serves as a hydraulic separator (depending on the
adjustment of the mixing valve).
Application range:
●for heating systems controlled by a mixing valve in
combination with a boiler temperature
maintenance
●to maintain a minimum boiler flow rate
3 Product description
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3.3 Mixing valve [specialist]
Mixing valve position 0
Mixing valve position 5
Mixing valve position 10
3 Product description
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3.4 Accessories: Actuator (optional)
The PAW actuator for weather-compensated control is available as an accessory.
For mixing valves with flow on the left, the scale must be turned by 180°.
for mixing valve with flow on the right for mixing valve with flow on the left
Assembly of the actuator - flow on the right:
If the PAW actuator has been purchased as an optional
accessory, the mixing valve contains a metal plate. To
mount the PAW actuator on the mixing valve, proceed as
follows:
1. Turn the rotary knob of the mixing valve into
position 0.
2. Set the actuator to manual mode by turning the
selector switch.
3. Turn the rotary knob of the actuator to the left to the
position shown on the adjacent figure.
4. Mount the rotation lock / the stop bolt in the left
opening of the metal plate. The actuator is fixed on a
stop bolt.
5. Put the PAW actuator on the rotary knob of the mixing
valve and mount the actuator on the stop bolts. The
PAW actuator must be mounted in a horizontal
position.
6. Set the actuator to automatic mode.
3 Product description
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3.5 Check valve
The HeatBloC® is equipped with a check valve (D-1) in the return pipe. The check valve can be opened.
The check valve is spring-operated. The opening pressure is 200 mm wc.
Operation During operation, the marking 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 installation, the
marking must be directed to "A".
●The check valve is open.
●Flow in both directions.
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.
In this case, a non return valve DN 25: 34011, DN 32: 37011) must be inserted in the mixing valve
return (C-3) to prevent unwanted circulation.
4 Mounting and installation [specialist]
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