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3 Product description 

 

 

2020/04 

993x083x-mub-en – V04

 

3.2

 

Function 

 

K38 – with 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 

Summary of Contents for HeatBloC K38 DN 25

Page 1: ...Böcklerstr 11 31789 Hameln Germany Phone 49 5151 9856 0 Fax 49 5151 9856 98 E mail info paw eu Web www paw eu 2020 04 993x083x mub en V04 1 DN 25 DN 32 Installation and Operation Instructions HeatBloC K38 DN 25 DN 32 ...

Page 2: ...Item no 993x083x mub en Version V04 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 ...

Page 3: ...ixing valve specialist 8 3 4 Accessories Actuator optional 9 3 5 Flow check valve specialist 10 4 Assembly and installation specialist 11 4 1 Installation and commissioning of the HeatBloC 11 5 Scope of delivery specialist 13 5 1 Spare parts DN 25 14 5 2 Spare parts DN 32 16 6 Technical data 18 6 1 Pressure drop and pump characteristic curves DN 25 19 6 2 Pressure drop and pump characteristic curv...

Page 4: ...instructions of the corresponding manufacturer 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 of the HeatBloC excludes any liability claims This product...

Page 5: ...ety instructions of 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 los...

Page 6: ...ng plate with thread connections 3 1 Equipment A 1 Flow to the consumer circuit A 2 Full 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 1 Check valve D Return pipe E Design insulation with optimised function F 2 Full metal thermometer with immersion sleeve integrated i...

Page 7: ...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 wit...

Page 8: ...3 Product description 8 993x083x mub en V04 2020 04 3 3 Mixing valve specialist Mixing valve position 0 Mixing valve position 5 Mixing valve position 10 ...

Page 9: ... actuator on the mixing valve proceed as follows 1 Turn the rotary knob of the mixing valve into position 0 fig 4 2 Set the actuator to manual mode by turning the selector switch fig 3 3 Turn the rotary knob of the actuator to the left to the position shown on the adjacent figure fig 3 4 Mount the rotation lock the stop bolt in the left opening of the metal plate fig 4 The actuator is fixed on a s...

Page 10: ...pipe The check valve can be opened 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 ...

Page 11: ...elivery NOTICE Damage to property The location of installation must be dry load carrying 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 installed Option 1 on a PAW modular distribution manifold In this case a non return valve DN 25 34011 DN 32 37011 must be insert...

Page 12: ...ion thread connections 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 Flow Flow Return Return Heat generator Consumer circuit Return Flow Return Flow ...

Page 13: ... 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 5 Scope of delivery spec...

Page 14: ...5 Scope of delivery specialist 14 993x083x mub en V04 2020 04 5 1 Spare parts DN 25 ...

Page 15: ... Insulation for HeatBloC DN 25 N00016 9 Actuator 5 Nm 230 V 50 Hz 705001 10 Brass pipe DN 25 2x 1 ext thread 180 mm with check valve N00018 Item no heating circuit Pump Item no EEI 36083 M WP6 Wilo Para SC 25 6 43 N00259 0 20 36083 M WP8 Wilo Para SC 25 8 60 O N00271 0 20 36083 M WH6 Wilo Stratos PICO 25 1 6 E1239625 0 20 36083 M GM6 Grundfos UPM3 Auto L 25 70 PP3 N00237 0 20 36083 M GH6 Grundfos ...

Page 16: ...5 Scope of delivery specialist 16 993x083x mub en V04 2020 04 5 2 Spare parts DN 32 ...

Page 17: ...lation for HeatBloC DN 32 N00027 9 Actuator 5 Nm 230 V 50 Hz 705001 10 Brass pipe DN 32 2x 2 ext thread 180 mm with check valve N00139 Item no heating circuit Pump Item no EEI 39083 M WP6 Wilo Para SC 30 6 43 N00261 0 20 39083 M WH6 Wilo Stratos PICO 30 1 6 E1239630 0 20 39083 M WY10 Wilo Yonos PARA HF 30 0 5 10 E12361510 0 23 39083 M GM6 Grundfos UPM3 Auto L 32 70 PP3 N00240 0 20 39083 M GH6 Grun...

Page 18: ...th insulation 2 250 mm 250 mm Height insulation 3 383 mm 441 mm Installation length 4 340 mm 400 mm Connections Outlet A 1 F 1 1 int thread 1 int thread Inlet C 1 C 2 1 ext thread 2 ext thread Technical data Opening pressure check valve D 1 200 mm wc can be opened Materials Valves and fittings Brass Gaskets EPDM Insulation EPP ...

Page 19: ...Maximum pressure 6 bars 6 bars Maximum temperature 110 C 110 C KVS value m3 h 4 1 6 1 6 1 Pressure drop and pump characteristic curves DN 25 Pressure m wc Pressure kPa Flow rate l h 6 2 Pressure drop and pump characteristic curves DN 32 Pressure m wc Pressure kPa Flow rate l h ...

Page 20: ...s 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 conta...

Page 21: ...7 Disposal 2020 04 993x083x mub en V04 21 ...

Page 22: ...7 Disposal 22 993x083x mub en V04 2020 04 ...

Page 23: ...7 Disposal 2020 04 993x083x mub en V04 23 ...

Page 24: ...993x083x mub en V04 2020 04 PAW GmbH Co KG Böcklerstraße 11 31789 Hameln Germany www paw eu Phone 49 0 5151 9856 0 Fax 49 0 5151 9856 98 ...

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