PAW Heating Components and Solar Systems Brochure

8/6/2019 PAW Heating Components and Solar Systems Brochure

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Catalog 05/2011

Modular Zone Control SystemInnovative System Technology for Solar & Hydronics

Hydronic HeatingSolar Thermal Technology


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1.Solar stations andsolar heat trans er units

Plug-and-playInnovative system technology or Solar & Hydronics


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2.Zone modules anddistribution mani olds

1. FlowCon C + Evolution II solar station with integrated controller

2. K31 high temperature zone module2 xK32 high temperature zone module with 3-way mixing Modular distribution mani old

K36E zone module with integrated temperature/ ow bypavalve


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PAW North America, LP 45 Davis Street Webster, MA 01570 USAphone: +1-508-943-4240 ax: +1-508-943-4141 [email protected] www.paw.eu

M o

d e r n

h y d r o n

i c h e a

t i n g s y s t e m s

Module Type Page

"/DN 20 K31 - high temperature module 5K32 - 3-way mixing valve 6K34 - 3-way mixing valve and bypass 0-50% 7K33 - thermostatic mixing valve 8Assembly accessories or " 9Modular distribution mani old and assembly accessories 10 - 11MW hydraulic separator 12Mounting example 13

1"/DN 25 K31 - high temperature module 14K32 - 3-way mixing valve 15K33 - thermostatic mixing valve 16K34 - 3-way mixing valve with bypass 0-50% 17K38 - 4-way mixing valve 18Mounting equipment or 1" 19K36E - with integrated pressure/temperature bypass 20 - 21Modular distribution mani old 22 - 23MW hydraulic separator 24 - 25Assembly accessories and examples or modular system 26 - 27

1 "/DN 32 K31 - high temperature module 28K32 - 3-way mixing valve 29K34 - 3-way mixing valve with bypass 0-50% 30K38 - 4-way mixing valve 31K36E - with integrated pressure temperature bypass 32 - 33Modular distribution mani old and assembly accessories 34 - 35MW hydraulic separator and assembly accessories 36 - 37Assembly accessories or 1 " 38

Type "/DN 20 1"/DN 25 1 "/DN 3231 up to 102 MBH , 30 kW up to170 MBH , 50 kW up to222 MBH , 65 kW32 up to 72 MBH , 21 kW up to114 MBH , 33.5 kW up to174 MBH , 51 kW34 up to 72 MBH , 21 kW up to155 MBH , 45.5 kW up to218 MBH , 64 kW38 up to 112.5 MBH , 33 kW up to177 MBH , 52 kW33 up to 35 MBH , 10 kW up to68 MBH , 20 kW36 E up to 136.5 MBH , 40 kW up to205 MBH , 60 kWMani old up to 170 MBH , 50 kW up to273 MBH , 80 kW up to512 MBH , 150 kW

Per ormance chart or t = 36 F/20 C


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High temperature zone module K31; residential series "/DN 20For high temperature zone or boiler primary loop

Features:

Full port ball valve .

" emale connection .

Function-optimized insulation designmade o durable elastic EPP,100% insulation o the

ttings , and air duct to cool the pumps.

Free access to the pump head by simply pulling o the

cover.Flow check valve in return pipe is noise ree,low pressure drop, manual opener or aster line drainservice, spring-actuated - suited or horizontal, vertical or

ow-down assembly.

Supply on the right = standardI required, the supply and return connections can besimply changed on site.

TECHNICAL DATA Zone Module K31Dimension " - DN 20Materials Fittings Brass

Gaskets EPDM/NBRInsulation EPP

Technical data Max. pressure 116 psi/8 barMax. temperature 230 F/110 CCV value 4.3

Dimensions Supply/return line tomani old ( at sealing) 1" maleSupply/return line toheating zone " emalePipe-centre distance 3 "/90 mmLength 255 mm/10"Width insulation 180 mm/71/16"Height insulation 385 mm/151/8"

Recommended High/ oating temperature zoneapplication control up to 102 MBH/30 kW at T = 36 F/20C ow rate [l/h]

Pressure drop K31/pump characteristicsow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n ]

USE High Temperature Zone Modules K31 in closed loop design to supp-ly high temperature zones, such as indirect water heaters, baseboards or

an coil units, or as modules or injection mixing. All supply and return lines

are ". Up to 9 high temp modules can be installed on one mani old. Undercertain conditions, such as with the use o a condensing boiler, K31 can beconnected directly to the heat source, provided the ollowing conditionsapply:

Proper ow ist maintained through the heat source. Heat source can be set to desired temperature setting

(no mixing required).

No minimum return uid temperature is required for the heat source. All the necessary conditions and piping practices, as outlined

by the heat source manu acturer, are properly maintained.

All components (except or the circulator) are ma-nu actured rom brass .

Full metal temperature gaugescan be pulled o , brass thermowell is integrated iball valve.Pump can be replaced or servicedwithout draining the system.

Fully assembled with at sealing union

connections at most joints,including 1" connection nut or the installation on distribution mani old.Forstand alone assembly, use the conversion kit withbracket rom the PAW-assembly accessories.

The insulation o the distribution mani oldis integrated in the insulation o the zone module .

Illustration Type In ormation PAW pump Item #

K31"DN 20

AdvantagesPAW pump: completely

preassembled precisely integrated

in the insulation pressure tested serial number 3-speed pump

Wilo Star S 21 U-15-130 32013WI21NA


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Low temperature zone module K32; residential series "/DN 20with 3-way mixing valveFor heating zones controlled by motorized mixing with reset control

Features:



Large ball valve handlesor easy grip and visible closing position.



Free access to the pump head by simply pulling o the cover.Flow check valve in return pipe is noise ree,low pressure drop, manual opener or aster line drainservice, spring-actuated - suited or horizontal, vertical or

ow-down assembly.



Full metal temperature gaugescan be pulled o , brass thermowell is integrated in theball valve.

Pump can be replaced or servicedwithout draining the system.

3-way mixing valveully made o brass, ideal linear characteristic (preven

swinging o the regulation). The supply line can be isolated, no draining necessary during pump service.

Fully assembled with at sealing unionconnections at most joints,including 1" connection nut or the installation on PAWdistribution mani olds.Forstand alone assembly, use the conversion kit withwall bracket rom the PAW-assembly accessories.





Dimensions Supply/return line tomani old ( at sealing) 1" maleSupply/return line toheating zone " emalePipe-centre distance 3 "/90 mmLength 255 mm/10"Width insulation 180 mm/71/16"Height insulation 385 mm/151/8"

Recommended High/ oating temperature zoneapplication control up to 72 MBH/21 kW at T = 36 F/20K

ow rate [l/h]

p r e s s u r e

[ f t h e a d

]


p r e s s u r e

[ m w

a t e r c o

l u m n ]

USE in closed loop design. Low Temperature Zone Module K32 replaces con-ventional injection mixing systems. In conjunction with an electronic reset

control and a direct drive actuator, the K32 modulates a 3-way valve, divertsand mixes radiant return water with hot water rom the boiler. The constantspeed system circulator delivers the required water temperature to theradiant loop mani olds.

Sizing and piping:The K32 can handle radiant load demands o up to 71,000 BTUs. Your cur-

rent method o zoning the radiant loops (mani olds, zone valves, etc.) doesnot change with the installation o the K32. Multiple K32 modules can beused to separate the distinctive temperature requirements between mani-

olds. No special piping, just 2 connections and your installation is complete.


K32"DN 20






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Low temperature zone module K34; residential series "/DN 20with 3-way mixing valve with bypass 0-50%For high ow heating zones controlled by motorized mixing with reset control

Features:Full port ball valve ." emale connection .Large ball valve handles

or easy grip and visible closing position.Function-optimized insulation designmade o durable elastic EPP,100% insulation o the



ow-down assembly.Supply on the right = standardI required, the supply and return connections can besimply changed on site.

All components (except or the c irculator) are ma-nu actured rom brass .Full metal temperature gaugescan be pulled o , brass thermowell is integrated inball valve.Pump can be replaced or servicedwithout draining the system.3-way mixing valve with integratedadjustable bypass

ully made o brass, ideal linear characteristic (pswinging o the regulation). The supply line can beted, no draining necessary during pump service.Fully assembled with at sealing unionconnections at most joints,including 1" connection nut or the installation on distribution mani olds.Forstand alone assembly, use the conversion kit wwall bracket rom the PAW-assembly accessories.The insulation o the distribution mani oldis integrated in the insulation o the zone module .TECHNICAL DATA Zone Module K34

Dimension " - DN 20Materials Fittings Brass


Technical data Max. pressure 116 psi/8 barMax. temperature 230 F/110 C

CV value 3.5Dimensions Supply/return line to

mani old ( at sealing) 1" maleSupply/return line toheating zone " emalePipe-centre distance 3 "/90 mmLength 255 mm/10"Width insulation 180 mm/71/16"Height insulation 385 mm/151/8"

Recommended Floating action temperature controlapplication up to 72 MBH/21 kW at T = 36 F/20K ow rate [l/h]


p r e s s u r e

[ m w

a t e r c o

l u m n ]

USE in closed loop design. Low Temperature Zone Module K34 replaces con-ventional injection mixing systems. In conjunction with an electronic reset

control and a direct drive actuator, the K34 modulates a 3-way valve, divertsand mixes radiant return water with hot water rom the boiler. The constantspeed system circulator delivers the required water temperature to the ra-diant loop mani olds. The adjustable bypass diverts up to 50% o additionalreturn water to the system supply and lowers supply temperature to ensu-re a speci c low supply water temperature is maintained and no thermal

shock will occur in the radiant slab.Sizing and piping: The K34 can handle radiant load demands o up to

71,000 BTUs. Your current method o zoning the radiant loops (mani olds,zone valves, etc.) does not change with the installation o the K34. MultipleK34 modules can be used to separate the distinctive temperature require-ments between mani olds. No special piping, just 2 connections and yourinstallation is complete.


K34"DN 20






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Low temperature zone module K33; residential series "/DN 20For low temperature heating zones controlled by 3-way thermostatic mixing

Features:



Large ball valve handlesor easy grip and visible closing position.




ow-down assembly.



Strap-on high limit, adjustable supply temperature68 F-140 F .

Full metal temperature gaugescan be pulled o , brass thermowell is integrated in theball valve.

Pump can be replaced or servicedwithout draining the system.

3-way mixing valveully made o brass, regulated by the thermostatic headwith remote sensor on supply pipe, manual temperatureadjustment.

Fully assembled with at sealing union connectionsat most joints,including 1" connection nut or the installation on PAWdistribution mani olds.Forstand alone assembly, use the conversion kit withwall bracket rom the PAW-assembly accessories.





CV value 1.6Dimensions Supply/return line to

mani old ( at sealing) 1" maleSupply/return line toheating zone " emalePipe-centre distance 3 "/90 mmLength 255 mm/10"Width insulation 180 mm/71/16"Height insulation 385 mm/151/8"

Recommended Floating action temperatureapplication control up to 35 MBH/10 kW at T = 18 F/10 C ow rate [l/h]

p r e s s u r e

[ f t h e a d

]


p r e s s u r e

[ m w

a t e r c o

l u m n ]

USE in closed loop design. Low Temperature Zone Modules K33 equippedwith an adjustable thermostatic actuator. K33 is designed to provide con-stant supply temperatures to the radiant system. Depending on the geo-

graphic location o the installation, periodic adjustments to the tempera-ture may or may not be necessary. Rotating the dial o thermostatic headto a higher number will provide or hotter temperatures. The designer o the radiant system must ensure the range o temperatures provided by the

control is suitable or the installation. The K33 can handle radiant load de-mands o up to 35,000 BTUs at a 35F/20C diferential. The mixing valvecloses on temperature rise. Multiple K33 modules can be used to separate

the distinctive temperature requirements between mani olds. No specialpiping, just 2 connections and your installation ist complete.


K33"DN 20






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Wall bracket setor distribution mani old

set consists o 2 brackets, steel, yellow galvanized, orcentre distances o 70, 85 or 100 mm, incl. asteningmaterial. From MV 5- old onwards 2 sets o wall bracketsrecommended.Item # 3121

Distribution mani old MV DN 20with patented thermal separation, up to 170 MBH, ullymade o brass. Complete speci cation see page 10.Item # 3112 MV 2- oldItem # 3113 MV 3- oldItem # 3114 MV 4- oldItem # 3115 MV 5- oldItem # 3116 MV 6- old

Mounting plateat sealing under a modular mani old, or xin

bracket, one side 1" emale (nut), other side 1" mItem # 3125

Pressure bypass valvewith counter-T-pieces and elbow gland, di erentialsettings range: 1.4 up to 8.7 psi (0.1 up to 0.6 bar).Item # 31301

Wall bracket setor " zone modules

With the wall bracket and the mounting plate therecan be installed distances rom 55 mm up to 115 mm(with 15 mm spacing) rom the wall.Consisting o : mounting plate, wall bracket and aste-ning material.

Item # 3122 SET

Compression adaptoror copper pipe

" male sel -sealing, with O-Ring, additionalsupport sleeve,suited or so t and hard copperpipes ! Useable up to 300 F/150 C!

Item # 561 212 " copper pipeItem # 561 222 " copper pipe

Adaptor nipple" - connection sel -sealing with O-ring, " NPT-thread.Item # 348 310 NA

Connecting set " emale to connect pipes with male thread under the modular

heating circuits not necessary for mounting in connection with aPAW-mani old

Consists o : 2 anges, socket " emale with nItem # 3131

Assembly accessories or K31-K34, zone modules "/DN 20

Coupling or ow down assembly"

or the installation o a heating zone module undistribution mani old.Please note: I you want to wall brackets, you will need an additonal mounplate or the installation o a 2- old distribution

old MV2 (Item # 3125).Item # 31241


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3112

3113

3114

3115

3116

Features:

Distribution mani old - "/DN 20modular design, with patented thermal separation o the supplyand return chambers, or outputs up to 170 MBH/50 kW (per boilerconnection)- completely made o brass- completely pre-assembled- supply and return chambers thermally separated at 95%- mani olds are delivered with insulating caps; the insulation or the mani-

olds is integrated in the zone module insulation- extremely low resistance, ree ow = 1"- up to six pre-assembled mani old modules available- multiple boiler connections are possible, or higher outputs

Pressure drop modular distribution mani old DN 20ow rate [USgpm]

Modular distribution mani old residential series "/DN 20or closed loop design only

ow rate [m3 /h]

Item #DN OptionsIllustration

MVDN 20"

TECHNICAL DATA Modular Distribution Mani old " - DN 20

Dimension " - DN 20Materials Fittings Brass

Gaskets EPDM/NBRInsulation EPP-shells


Connections For heating modules " PAW angeor 1" union

For boilers " emale x 1" male -at-sealing (bottom) 2 x or

boiler connection, restplugged

On the side " emale, plugged or sa ety group and expansion tank

Dimensions Center distance 90 mm/317 / 32"Installation height 80 mm/35 / 22"Height o insulation 85 mm/311 / 32"

Width o the distribution mani old incl. insulation see item list below p r e s s u r e

[ f t h e a

d ]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

return chamber

supply chamber

Inside view o modular

distribution mani old "

thermalseparation

MV 2 modular distribution mani old 2- oldor connection o up to 3 heating circuits

Width incl. insulation: L = 440 mm/171 / 3"




Width incl. insulation: L = 800 mm/31 "




Width incl. insulation: L = 1.160 mm/451 / 3"

USE in closed loop design. Modular design distribution mani olds allowparallel connection o multiple Zone Modules in order to customize anyinstallation. Available in 2- to 6-sectional designs, or connection o 2 to

9 heating zones, they simpli y installation, extremely shorten assemblytime, providing cost and time savings. Union connections make mounting

o Zone Modules to the mani old ast and easy. Supply and return cham-bers o the mani old are thermally divided. Add-on mani old module allowstrouble- ree connection o additional heating circuits to an existing system.

No special piping, just 2 connections and your installation is complete.


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Assembly accessories or distribution mani old "/DN 20

Extension moduleFor the extension o existing PAW-modular zoning sy-stems. The EPP insulation is part o the heating module.The installation should be carried out only by atrained technician!

Item # 3111

Connecting set or expansion tank tank connection coupling ", armored hose 700 mm, or max. tank diameter = 440 mm .Item # 7507

Coupling or ow down assembly "

or the installation o a heating zone module under a

distribution mani old.Please note: I you want to usewall brackets, you will need an additonal mountingplate or the installation o a 2- old distribution mani-

old MV2 (Item # 3125).Item # 31241

Wall bracket set or mani oldset consisting o 2 brackets, steel, galvanized, or centredistances o 70, 85 or 100 mm, incl. astening material.For 5- old and larger MV modular distribution mani oldstwo wall brackets sets are recommended.Item # 3121

Mounting plateat sealing under a modular mani old, or xin

bracket, one side 1" emale (nut), other side 1" mItem # 3125

Compression adaptoror copper pipe

" male sel -sealing, with O-Ring, with additional sup-port sleeve,suited or so t and hard copper pipes !Useable up to 300 F/150 C!

Item # 561 212 " copper pipeItem # 561 222 " copper pipe

Connecting set " emale To connect pipes with male thread or compresadaptor (see above) under the modular heating circConsisting o : 2 anged sockets " emale with nItem # 3131

Wall bracket set or mani oldset consisting o 2 brackets, steel, yellow galvanized,

or centre distances o 70, 85 or 100 mm, incl. aste-ning material. From MV 5- old onwards 2 sets o wallbrackets recommended.Item # 3121


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FunctionWhen used in conjunction with boilers having a built-in pump, the hydraulic sepa-rator acts as hydraulic break, decoupling boiler and system circuits rom each other.It is recommended to use the hydraulic separator in applications in which the totalsystem ow rate exceeds the maximum boiler ow rate.PAW strongly recommends the use o a hydraulic separator in cases where thesystem head and ow rates are unknown. These are typical unctional conditions.Following is an example o three possible situations o hydraulic stability.

MW hydraulic separator or modular systems "/DN 20

Vsec. > Vprim.. .

Vsec. = Vprim.. .

Vsec. < Vprim.. .

VBoiler = Vprim.. .

VConsumer = Vsec.. .

Type/CharacteristicsIllustration

MW 20 hydraulic separator up to 9.7 USgpm/2,200 l/h

Completely made o brass, completely covered by EPP insulation, to be installedunder a modular distribution mani old " or separately (vertically or horizontally)on the wall.

Connections:PAW ange with 1" union nut, 1" emale/" emale, 2 x " emale or sensor welland drain valve.width = 1113 / 16 /300 mm, installation height = 35 / 32 /80 mm

MW 20 hydraulic separator up to 9.7 USgpm/2,200 l/h

Item #

31421 NA

USE in closed loop design. In conjunction with boilers having high resi-stance (condensing) or when total ow rate o all parallelly running circu-lators is higher than maximum ow rate o the boiler, the low-loss headerprovides hydraulic separation, decoupling boiler and system circuits romeach other. It is recommended to use the low-loss header in applicationsin which the total system ow rate exceeds the maximum boiler ow rate.PAW strongly recommends the use o a hydraulic separator in cases wherethe system head and ow rates are unknown.

Suitable or vertical orhorizontal installation


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K32 - ",or example or radiator circuit with

actuator SR10

K31 - ",or example or indirect DHW storage tank

Modular distributionmani olds MV2 - "2- old

Mounting plate +wall bracket set

Connecting setper ormance per boiler connectionup to 170 MBH

Modular system "/DN 20Mounting example

K33 - "or example or radiant oor heating


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High temperature zone module K31 unmixed 1"/DN 25For high temperature zone or boiler primary loop

Features:

1" NPT emale connections .

Large ball valve handlesEasy handling, visible closing position.

Design insulation with optimized unction made o durable, elastic EPP,100% insulation o the ttings ,ventilation openings to cool the pumps.

Check valve in return pipeprevents any noise when electronically controlled pumpsare used, manual opener, 200 mm water column, spring-operated, thus suitable or horizontal and overheadinstallation.

Supply on the right = standard The supply and return line can be changed in lled.All water-carrying parts are made o brass .

All-metal temperature gaugescan be pulled o , integrated in the ball valve with animmersion sleeve.

Fully assembled with at gaskets .

PAW heating circulation pumps - anged 2-boltintegrated in the insulation, pressure tested, serial num-bered.

Pump can be completely isolated,

enabling replacement or service without draining the system .Flat sealing 1 " male inlet connectionsIncl. 1 " union nut or the installation on PAW moduldistribution mani olds. Individual installations witwall brackets are possible by using the PAW mountingequipment.

TECHNICAL DATA Zone Module K31Dimension 1" - DN 25Materials Fittings Brass



CV value 6.3Dimensions Zone module inlet 1 " male

Zone module outlet 1" NPT FCenter distance 125 mm/421 / 32"Length 382 mm/151 / 32"Width insulation 250 mm/927 / 32"Height insulation 462 mm/183 / 16"

Recommended at T = 36 F/20 K application at 9.5 USgpm/2150 l/h up to 170 MBH/50 kW

USE High Temperature Zone Module K31 in closed loop design to supp-ly high temperature zones, such as indirect water heaters, baseboards or

an coil units, or as modules or injection mixing. Supply and return lines

are 1" NPT. Up to 9 high temp modules may be installed on one mani old.Under certain conditions, such as with the use o a condensing boiler, K31can be connected directly to the heat source, provided the ollowing con-ditions apply:

Proper ow is maintained through the heat source. Heat source can be set to desired temperature setting


No minimum return uid temperature is required for the heat source. All necessary conditions and piping practices, as outlined by the heatsource manu acturer, are properly maintained.

p r e s s u r e

[ f t h e a

d ]

ow rate [l/h]

Pressure drop K31/pump characteristics

ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

K31-DN 25


K311"DN 25




Wilo Star S 21 FX 473601.WI21 NA


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Low temperature zone module K32; with 3-way mixing valve 1"/DN 25For heating zones controlled by motorized mixing with reset control

Features:



Design insulation with optimized unction made o durable elastic EPP,100% insulation o the ttings ,ventilation openings to cool the pumps.

Check valve in return pipe

prevents any noise when electronically controlled pumpsare used, manual opener, 200 mm water column, spring-operated, thus suitable or horizontal and overheadinstallation.

Supply line on the right or on the le tSupply and return line can be changed on site, the mixingvalve can be changed without difculties.All water-carrying parts are made o brass .

All-metal temperature gaugescan be pulled o , integrated in the ball valve witimmersion sleeve.


PAW heating circulation pumps - anged 2-boltalready installed, integrated in the insulation, pretested, serial numbered.

3-way mixing valve

completely made o brass, characteristic curve prevariation in temperature, ow pipe can be shut o ,the pump can be replaced or serviced without drainthe system.

Flat sealing 1 " male inlet connectionsIncl. 1 " union nut or the installation on PAW mdistribution manifolds. Using PAW mounting equipmentthe heating circuit can be installed with wall bracke

USE in closed loop design. Low Temperature Zone Modules K32 are re-placing conventional injection mixing systems. In conjunction with anelectronic reset control and a direct drive actuator, the K34 modulates a

3-way valve, diverts and mixes radiant return water with hot water romthe boiler. The constant speed system circulator delivers the required wa-ter temperature to the radiant loop mani olds.

Sizing and piping:The K32 can handle radiant load demands o up to 111 MBH. Your currentmethod o zoning the radiant loops (mani olds, zone valves, etc.) does not

change with the installation o the K32. Multiple K32 modules can be usedto separate the distinctive temperature requirements between mani olds.No special piping, just 2 connections and your installation is complete.






Recommended at T = 36 F/20 K application at 6 USgpm/1400 l/h up to 114 MBH /33.5 kW

ow rate [l/h]


ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

K32-DN 25


K321"DN 25






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Low temperature zone module K33 1"/DN 25with thermostatic 3-way mixing valve and adjustable bypass 0-50 %For low temperature heating zones controlled by 3-way thermostatic mixing

Features:1" NPT emale connections . Large ball valve handlesEasy handling, visible closing position.Design insulation with optimized unction made o durable elastic EPP,100% insulation o the ttings ,ventilation openings to cool the pumps.Check valve in return pipeprevents any noise when electronically controlled pumpsare used, manual opener, 200 mm water column, spring-operated, thus suitable or horizontal and overheadinstallation.Supply line on the right or on the le tSupply and return line can be changed in lled.To changethe supply line, a mixing valve conversion set isnecessary .Check valveintegrated in the mixing valve, prevents unwantedcirculation.All water-carrying parts are made o brass .

Thermostat - adjustable in the rangeo 68 F-140 F /20-60 CWhen the adjusted temperature is exceeded a switch isactivated and switches o the pump.All-metal temperature gaugescan be pulled o , integrated in the ball valve with animmersion sleeve.Fully assembled with at gaskets .PAW heating circulation pumps - anged 2-boltalready installed, integrated in the insulation, pressuretested, serial numbered.3-way mixing valve with bypass 0-50 % and ther-mostat controlcompletely made o brass, set by the thermostat and thesensor, the setting is done manually, the bypass can be setat the ront.Flat sealing 1 " male inlet connectionsIncl. 1 " union nut or the installation on PAW moduldistribution manifolds. Using PAW mounting equipmentthe heating circuit can be installed with wall brackets.

USE in closed loop design. Low Temperature Zone Modules K33 equip-ped with adjustable thermostatic actuator. K33 is designed to provide

constant supply temperatures to the radiant system. Depending on thegeographic location o the installation, periodic adjustments o the tem-perature may be necessary. Rotating the dial o the thermostatic head toa higher number will provide or hotter temperatures. The designer o theradiant system must ensure the range o temperatures provided by the

control is suitable or the installation. The K33 can handle radiant load de-mands o up to 34 MBH at 36 F /20 C diferential. Mixing valve closes on

temperature rise. Multiple K33 modules can be used to separate the dis-tinctive temperature requirements between mani olds. No special piping, just 2 connections and your installation is complete.







ow rate [l/h]

p r e s s u r e

[ f t h e a

d ]


ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

K33-DN 25


K331"DN 25






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Low temperature zone module K34 1"/DN 253-way mixing valve and adjustable bypass 0-50 %For low-temperature heating controlled by a mixing valve

Features:1" NPT emale connections .




Supply line on the right or on the le tSupply and return line can be changed on site, the mixingvalve can be changed without difculties.

Check valveIntegrated in the mixing valve, prevents unwanted cir-culation.

All water-carrying parts are made o brass

All-metal thermometercan be pulled o , integrated in the ball valve witimmersion sleeve.

Fully assembled with at gaskets .PAW heating circulation pumps - anged 2-boltalready installed, integrated in the insulation, pretested, serial numbered.

3-way mixing valvecompletely made o brass, characteristic curve prevariation in temperature. With the bypass valve (adjuon the ront) 0-50% o the water rom the return lbe mixed to the ow line.

Flat sealing 1 " male inlet connectionsincl. 1 " union nut or the installation on PAW modutribution mani olds. Individual installations with wakets are possible by using PAW mounting equipmen

USE in closed loop design. Low Temperature Zone Module K34 replacesconventional injection mixing systems. In conjunction with an electronicreset control and a direct drive actuator, the K34 modulates a 3-way valve,diverts and mixes radiant return water with hot water rom the boiler. Theconstant speed system circulator delivers the required water temperatureto the radiant loop mani olds. Adjustable bypass diverts up to 50% o addi-tional return water to the system supply and lowers supply temperature toensure a speci c low supply water temperature is maintained and no ther-

mal shock will occur in the radiant slab.Sizing and piping: The K34 can handle radiant load demands o up to154 MBH. Your current method o zoning the radiant loops (mani olds, zonevalves, etc.) does not change with the installation o the K34. Multiple K34modules can be used to separate the distinctive temperature requirementsbetween mani olds. No special piping, just 2 connections and your installa-tion is complete.






Recommended at T = 36 F/20 K application at 8.5 USgpm/1940 l/h up to 155 MBH /45.5 kW

ow rate [l/h]


ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

K34-DN 25


K341"DN 25






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Low temperature zone module K38 with 4-way mixing valve 1"/DN 25For heating mode with minimum temperature set by motorized mixing valve

Features:




Free access to the pump head by simply pulling o

the cover.Check valve in return pipeprevents any noise when electronically controlled pumpsare used, manual opener, 200 mm water column, spring-operated, thus suitable or horizontal and overheadinstallation.

Supply on the right = standardSupply and return line can be changed in lled.All water-carrying parts are made o brass .



PAW heating circulation pumps - anged 2-boltalready installed, integrated in the insulation, pressuretested, serial numbered.

4-way mixing valvecompletely made o brass, suitable or operation with a boilercircuit pump when installing a single heating circuit, work onprimary circuit is possible by closed supply line (a change inthe boiler circuit with closed supply line is possible). Wheninstalled on a distribution mani old, the return line o the mixing valve must be equipped with a check valveto prevent unwanted circulation.

Flat sealing 1 " male inlet connectionsincl. 1 " union nut or the installation on PAW moduldistribution mani olds. Individual installations with wbrackets are possible by using PAW mounting equip-ment.

USE in closed loop design. Low Temperature Zone Modules K38 replaceconventional injection mixing system. In conjunction with an electronicreset control and a direct drive actuator, the K34 modulates a 4-way valve,

diverts and mixes radiant return water with hot water rom the boiler. Theconstant speed system circulator delivers the required water temperatureto the radiant loop mani olds.








Recommended at T = 36 F/20 K application at 6 USgpm/1400 l/h up to 112.5 MBH/32.5 kW

p r e s s u r e

[ f t h e a

d ]

ow rate [l/h]


ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

K 38-DN 25


K381"DN 25






19/56


Assembly accessories or zone modules K31-K38 1"/DN 25

Pressure bypass valve 1"With sel -sealing coupling, installed between supplyand return line thermometer ball valve, adjustmentrange 1-6 m water column/1.5-8.5 psi.Item # 2854

" male sensor wellFor the installation o the temperature sensor intthermometer ball valve. 2 types available: Self-sealing with O-ring, polished brass, for sensor

with a diameter o 5.5 mm, depth = 30 mm Standard, chrome-plated brass, with extension for

the ball valve " x 25 mm, or sensor with adiameter o 6 mm, depth = 60 mm

Item # 566001 5,5 x 30 mmItem # 566002 6 x 60 mm

Modular distribution mani old 1"Modular design, up to 80 kW each boiler conneccompletely made o brass. For a detailed descrisee page 22.Item # 3412 NA 2- oldItem # 3413 NA 3- oldItem # 3414 NA 4- oldItem # 3415 NA 5- oldItem # 3416 NA 6- old

Wall bracket setUsing the wall bracket and mounting plate distances

rom 87.5 mm up to 162.5 mm (with 12.5 mm spo the wall are possible.Item # 3422SET

Connection set1" emaleConsisting o 2 insertion pieces, or connecting pipeswith 1" NPT under zone modules.Item # 3431 NA

Wall bracket set Two wall brackets in a set, steel, yellow galvanized,suitable or wall distances o 100, 125 or 150 mm,with mounting equipment. For 5- old and larger MV modular distribution mani olds two wall bracket setsare recommended.Item # 3421

Coupling or ow down assembly 1"For installing a modular heating circuit under a distribu-tion mani old.Please note: when using wall bracketsan additional mounting plate or the assembly o a2- old MV2 modular distribution mani old is necessary(Item # 3425).Item # 34241

Mounting plate 1"For installation under a modular distribution mani oldand or attaching wall brackets.Item # 3425


20/5620

05/2011


K36E zone module 1"/DN 25with integrated temperature/ ow bypass valveWith thermal control valve, to compensate temperature di erences in solid uel boilers as well as in wood fring and stove heating systems

Features:

1 " emale connections . Large ball valve handlesEasy handling, visible closing position.

Design insulation with optimized unction made o durable elastic EPP,100%insulation o the ttings , ventilation openings to cool the pumps.

Check valve in return pipeprevents any noise when electronically controlled pumps are used, manual opener,200 mm water column, spring-operated, thus suitable or horizontal and overheadinstallation.

Supply on the right = standard The supply and return line can be changed in lled.

All water-carrying parts are made o brass .All-metal temperature gaugescan be pulled o , integrated in the ball valve with an immersion sleeve. Fully assembled with at gaskets .

PAW heating circulation pumps - anged 2-boltpreinstalled, integrated in the insulation, pressure tested, serial numbered.For tech-nical reasons electronically controlled pumps are not recommended or theK36E zone module!

Flat sealing 1 " male inlet connectionsincl. 1 " union nut or the installation on PAW modular distribution mani olds.Individual installations with wall brackets are possible by using the PAW mountingequipment.

Thermal control valve with automatic ow bypass and integrated pressurebypass valve .ensures that the boiler always keeps a minimum temperature (= opening temperature+/- 5 F, +/- 3 C) and prevents the boiler rom sooting.

Special eature o the thermal control valve o the K36E heating circuit is the integratedpressure bypass valve . By means o this adjustable valve the K36E can be adjustedoptimally to all possible working and mounting conditions: When mounted to a bu er storage tank or a hydraulic separator the over ow valve

must be closed. When the opening temperature in the boiler circuit is achieved,the power o the integrated boiler pump is high enough to load the storage tank/ hydraulic separator.

When mounted to distribution manifolds the pump pressure is reduced by meansof the integrated bypass valve. The pump must operate at speed stage II. Unwan -ted circulation, or example excessive charging o potable water storage tanks, is

prevented this way.

TECHNICAL DATA Zone Module K36EDimension 1" - DN 25Opening temperature 122 F/131 F/140 F

50/55/60 CMaterials Fittings Brass



CV value 5.5Dimensions Zone module inlet 1 " emale


Recommended at T = 36 F/20 K application at 7.6 USgpm/1725 l/h up to 136.5 MBH/40 kW

p r e s s u r e

[ f t h e a

d ]

ow rate [l/h]

Pressure drop K36E/pump characteristicsow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n ]

K36E-DN 25


21/56


Thermal control valve with bypass and integrated over ow valve

Function:

1. The thermal control valve shuts o the connection to the heating/storagetank (load) as long as the water in the boiler circuit is colder than the openingtemperature o the thermal control valve. The pump in the K36E circulates thewater in the boiler loop by means o the automatic bypass which is completelyopen.

2. When the water in the boiler circuit has reached the opening temperature(+/- 5 F) o the thermal control valve, this valve opens the ow rom/to theload. The bypass shuts o to the same extent as the ow to the load is opened/ unlocked.The control valve opens the return line o the load and enables the water tocirculate in the circuit depending on the setting o the integrated pressure by-pass valve. The cold water rom the consumer return line is mixed in the controlvalve with the hot water rom the bypass. Depending on the temperature andthe ow rate o the water rom the return line, the thermal control valve shutso the connection to the lead. Thus the return line which leads to the boileralways remains at a certain temperature level.

3. With rising temperature in the boiler supply line or rising temperature in thereturn line rom the load, the thermal control valve opens (the ow connectionto the lead). The temperature o the return line o the boiler remains nearlyconstant (+/- 5 F, +/- 3 C).

Please notice: The boiler thermostat setpoint has to be set 36 F (20 C) higher than the openingtemperature o K36E.

PAW pumpIn ormation Item #Illustration Typ

K36E zone module 1"/DN 25with integrated temperature/ ow bypass valveWith thermal control valve, to compensate temperature di erences in solid uel boilers as well as in wood fring and stove heating systems

K36EOpening temp.122 F/50 C



Option

3422

3432 NA

4736035 WI21 NA

4736036 WI21 NA

4736037 WI21 NA

Boiler temperaturetk is lower than theopening tempera-ture;tr = tk

Boiler temperature tkis higher than theopening temperatu-re. tr is approximatelequivalent to theopening tempera-ture.

Return line tempe-rature tz rom theconsumer is higherthan the openingtemperature; tr = tz

tz

tr

tk

tr

tz

tk

tr

Wall bracket set or PAW zone moduleNot required for installation in connection with a PAW modular distribution manifold. Using thewall bracket, wall distances rom 87.5 mm up to 162.5 mm (with 12.5 mm spacing) are possible.Consists o : steel wall bracket, galvanized, asteners.

Wall bracket or heating circuits DN 25

Wilo Star S 21 FX

Wilo Star S 21 FX

Wilo Star S 21 FX

Connection set DN 252 x tail piece 1 " male or nut thread 1" NPT, brass

AdvantagePAW pump: completely




22/5622

05/2011


Features:

Heating distribution mani old 1"/DN 25Modular design, or outputs up to 273 MBH/80 kWper boiler connection- completely made o brass- completely pre-assembled- completely insulated with EPP- extremely low resistance, ree ow diameter = 36 mm/113 / 32"- up to six pre-assembled mani old modules available- multiple connection o the boiler possible, or larger power outputs

Pressure drop modular distribution mani old DN 25ow rate [USgpm]

return chamber

supply chamber

Inside view o modulardistribution mani old 1"

Modular distribution mani old or closed loop design only 1"/DN 25

ow rate [m3 /h]

OptionsIllustration

TECHNICAL DATA Zone Module DN 25

Dimension 1" - DN 25Materials Fittings Brass


Technical data Max. pressure 72.5 psi/5 barMax. temperature 230 F/110 CCV value 12.5

Connections For heating circuits 1" PAW angeor 1 " nut (top)

For boilers 1" emale x 1 " male -at-sealing (bottom) 2 x or

boiler connection, restplugged

On the side " emale, plugged or sa ety group and expansion tank Dimensions Center distance 125 mm/429 / 32"

Installation height 100 mm/315 / 16"Height o insulation 128 mm/52"

Width o the distribution mani old incl. insulation see item list below p r e s s u r e

[ f t h e a

d ]

p r e s s u r e

[ m w

a t e r c o l u m n ]

2- old3- old

4- old

5- old

6- old

3412 NA

3413 NA

3414 NA

3415 NA

3416 NA

Item #











USE in closed loop design. Modular design distribution mani olds allowparallel connection o multiple Zone Modules in order to customize anyinstallation. Available in 2- to 6-sectional designs, or connection o 2 to 9heating zones, they simpli y installation, extremely shorten assembly time,providing cost and time savings. Union connections make the mounting o

Zone Modules to the mani old ast and easy. Supply and return chamberso the mani old are thermally divided. Add-on mani old modules allowtrouble- ree connection o additional heating circuits to an existing system.No special piping, just 2 connections and your installation is complete.

MV1"DN 25

Type


23/56


Assembly accessories or distribution mani old 1"/DN 25

Extension module DN 25For the extension o an existing PAW modular mani old, EPP

insulation is integrated in the heating circuit. The instal-lation may only be made by a quali ed technician!

Item # 3411

Adaptor set or conversionFor installation o 1 " zone modules on a 1"modular distribution mani old, spacer ring set orunion nut 2" emale on PAW ange, brass, with special

seals, at-sealing.Item # 3436

Connection kit or the expansion tank " connection coupling or expansion tank, armoredhose " x 700 mm/27.56", double nipple ", with wallbracket + mounting equipment or tanks withmax.diameter o 440 mm/17.32".

Item # 7507

Mounting plate 1"For installation under a modular distribution manand or attaching wall brackets. Necessary whlower outlet connections are occupied.Item # 3425

Wall bracket set Two wall brackets in a set, steel, galvanized, suitab

or wall distances o 100 mm/3.94", 125 mm/4.92150 mm/5.9", with mounting equipment. For 5- old anlarger MV modular distribution mani olds two wall bracsets are recommended.Item # 3421

Wall bracket set Two wall brackets in a set, steel, galvanized, suitab

or wall distances o 100 mm/3.94", 125 mm/4.92150 mm/5.9", with mounting equipment. For 5- old anlarger MV modular distribution mani olds two wall bracsets are recommended.

Item # 3421

1" screw ange set on 1 " emaleFor 1" modular distribution mani olds and 1"modular heating circuits. Extends the inlet connec-tion rom " to 1 " emale. Connections: nut 1 " NPT

emale at-sealing- 1 " emale.

Item # 3434 NA

Coupling pieceor ow down assembly 1"

For installing a modular heating circuit under a distribu-tion mani old.Please note: when using wall bracketsan additional mounting plate or installing a MV 2- oldmodular distribution mani old is necessary (Item # 3425).Item # 34241

Reducer setFor installing " zone modules on a 1" modular distribution mani old , adaptor set1 " male, at-sealing with nut on " PAW ange, reduction o the center distance rom125 mm/4.92" to 90 mm/3.54", distance pipe 1" emale x 1" male at-sealing, brass, with seals.

The required union nuts 1" emale have to be taken rom the heating circuit!Item # 34351


24/5624

05/2011


3442 NA

FunctionWhen used in conjunction with boilers having a built-in pump, the low-loss headeracts as hydraulic break, decoupling boiler and system circuits rom each other. It isrecommended to use the low-loss header in applications in which the total system

ow rate exceeds the maximum boiler ow rate.PAW strongly recommends the use o a low-loss header in cases where the systemhead and ow rates are unknown. These are typical unctional conditions.Following is an example o three possible situations o hydraulic stability.

MW hydraulic separator or modular systems 1"/DN 25

Vsec. > Vprim.. .

Vsec. = Vprim.. .

Vsec. < Vprim.. .

VBoiler = Vprim.. .

VConsumer = Vsec.. .

Type/Characteristics

34421 NA

Suitable or vertical orhorizontal installation

Illustration Item #

Hydraulic separator 1" up to 7 USgpm/1600 l/hCompletely made o brass, with routed supply and return line, or the installationunder a single 1" modular distribution mani old. The EPP insulation is integrated in the heating circuit. Can also be installed undera 1" modular distribution mani old (by using the mounting plate item 3425) or se-parately (in the pipe). In that case 2 connection sets item 2151 or the PAW angesare necessary.

Connections:1" PAW ange or 1 " nut (above), 1" emale x 1 " male at-sealing (below) with

tting, " emale closed with plug (on the side),width = 330 mm/13", installation height = 100 mm/315 / 16", distance between theconnections = 125 mm/429 / 32"Hydraulic separator 1" up to 7.0 USgpm/1600 l/h

USE in closed loop design. In conjunction with boilers having high resi-stance (condensing) or when total ow rate o all parallel running circu-lators is higher than maximum ow rate o the boiler, the low-loss headerprovides hydraulic separation, decoupling boiler and system circuits romeach other. It is recommended to use the low-loss header in applicationsin which the total system ow rate exceeds the maximum boiler ow rate.PAW strongly recommends the use o a low-loss header in cases where thesystem head and ow rates are unkown.

MW 25 hydraulic separator up to 15.4 USgpm/3500 l/hCompletely made o brass, completely insulated with EPP insulation, or the installationunder a 1" modular distribution mani old or separately (vertically or horizontally) onthe wall.

Connections:PAW ange with 1 " nut, 1 "/1" emale at-sealing with tting, 2 x " emale orimmersion sleeve and ll and drain valve, width o insulation = 600 mm/235 / 8 ",installation height = 129 mm/53 / 32"

MW 25 hydraulic separator up to 15.4 USgpm/3500 l/h


25/56


Wall bracket set or hydraulicseparator 1" Two wall brackets in a set, steel, galvanized, suitable

or wall distances o 100 mm/3.94", 125 mm/4.92" or150 mm/5.9", incl. mounting equipment.Item # 3421

Pipe set 1"For the MW 25 hydraulic separator , or connecta vertically mounted hydraulic separator under a modular distribution mani old, at-sealing connecompletely insulated, outlet on the right or on the Item # 3442KS1

Assembly accessories or the MW hydraulic separator 1"/DN 25

Fill and drain valveSolid design, with hose nozzle and cap, completely

made o brass, plastic handles, connection " malesel -sealing with counter nut.Item # 2260 NA

Conversion kit or the modulardistribution mani old 1"For extending additionally a distribution mani old withan integrated hydraulic separator(low-loss header).Application range: up to 7 USgpm/1600 l/h, max.up to MV 3- old modular distribution mani old! Consisting o two distance rings or a resistance- reeconnection o the ow and return chamber, incl. screws

and O-rings.Item # 3443

Mounting plate 1"For installation under a modular distribution m

old and or attaching a 1" hydraulic separator7 USgpm/1600 l/h.

Item # 3425

Item #OptionsIllustration

MVW1"

Sensor wellFor supply line sensor/boiler sensor, connection" male, or sensor diameter o 6 mm/0.24", depth =60 mm/2.36", chromed brass.Item # 566002

Low-loss headers are used or boilers with an integrated pump.By means o the conversion kit the modular distribution mani olds have a bypasswhich connects the supply and return line without causing resistance (low-lossheader).It must be considered that the pump o the boiler circuit must deliver a higher

ow rate than the consumer pumps need in total. Otherwise, unwanted circulationoccurs on the right or le t end o the distribution mani old. In that case a hydraulicseparator (item 34421 or 3442) must be installed under a distribution mani old.

Please note: The use o a low-loss header has to be planned care ully.In connection with central heating boilers hydraulic separators mustbe installed be ore/under a distribution mani old as the boiler deliversa low ow rate with a high temperature diference (leads to unwantedcirculation on low-loss headers).

MVW 2 low-loss header, 2- oldUp to 3 heating circuits can be installedWidth incl. insulation : L = 580 mm/22.8"

MVW 3 low-loss header, 3- oldUp to 5 heating circuits can be installedWidth incl. insulation: L = 830 mm/32.7"

34422 NA

34423 NA

Type


26/5626

05/2011


Accessories or modular systems 1"/DN 25

Illustration Item

340711

340722

566 001

566 0021

T

5660021

Sensor wells " maleFor the installation o temperature sensors in the ball valve.Sel -sealing with O-ring, polished brass, or temperaturesensors with diameter = 0.22"/5.5 mm, depth = 1.18"/30 mm

Standard, chrome-plated brass, with extension or the ball valve, or temperaturesensor diameter = 0.24"/6 mm, depth = 2.34"/60 mm

566001 mounted

37012

Conversion kit or PAW mixing valves 1" + " on K33Be ore: K34 mixing valve (with bypass at the ront), 1"

K33 mixing valve (with bypass at the ront), 1" , supply line on the le tA ter: K33-1" (with bypass at the ront), supply line on the right

Be ore: K34 mixing valve (with bypass at the ront), 1"K33 mixing valve (with bypass at the ront), 1" , supply line on the right

A ter: K33-1" (with bypass at the ront), supply line on the le t

PAW-actuator type SR10-24/3Por weather-compensated controls. Simple assembly and disassembly thanks to the patented PAW

halting technique, with 5 t cable and mounting set or halting assembly onto the PAW mixing valve.Change-over switch or manual/automatic operation. Thanks to the removable scale it is suitable or

ow on the right or le t side. For controllers with3-wire motor output.Technical data:electric connection: 24 VAC/DCinput power: 3.5 W (SR10)actuation time 90: 140 s

Type SR10-24/3P 7054

Item #

Conversion kit or PAW mixing valves 1" + " on K34

Be ore: K33 mixing valve (with bypass at the ront), 1"A ter: K34-1" (with bypass at the ront), supply line on the right/supply line on the le t


27/56


K31 - 1",DHW zone

MV 3 modulardistributionmani old 1"3- old

K32 - 1",or example RFH, with

an SR10-24 actuatorK31 - 1",radiators

Wall bracket set

Modular System 1"/DN 25Mounting examples

K36 - 1",or wood fred boiler loop

Coupling pieceor overhead installation

with wall bracket set

K31 - 1",or example or DHW

Mounting platewith wall bracket set,

tting and compression tting

MV 5 Modulardistribution mani old 1"5- old

K32 - 1",or example or radiators

K34 - 1",or example or RFH

K33 - 1",or example or

RFH

Hydraulic separator


28/5628

05/2011


High temperature zone module K31 unmixed 1 "/DN 32For boiler load or oating heat modeFor high temperature zone or boiler primary loop

Features:

1 " NPT emale connections .

Large ball valve handles .Easy handling, visible closing position.


Free access to the pump head by simply pulling o the cover.

Check valve in return pipeprevents any noise when using electronically controlledpumps, manual opener, 200 mm water column, spring-operated, thus suitable or horizontal and overheadinstallation.

Supply on the right = standard The supply and return line can be changed in lled.

All water-carrying parts are made o brass .



PAW heating circulation pumps - anged 2-boltintegrated in the insulation, pressure tested, serial num-bered.

Pump can be shut of completelycan be replaced or serviced without draining the system .

Flat sealing 1 " male connectionsIncl. 2" union nut or the installation on PAW moduladistribution mani olds. Individual installations witwall brackets are possible by using the PAW mountingequipment.

TECHNICAL DATA Zone Module K31Dimension 1 " - DN 32Materials Fittings Brass



CV value 12.3Dimensions Zone module inlet 2" male

Zone module outlet 1 " NPT FCenter distance 125 mm/421 / 32"Length 435 mm/171 / 8"Width insulation 250 mm/927 / 32"Height insulation 462 mm/183 / 16"


USE High Temperature Zone Modules K31 in closed loop design to supplyhigh temperature zones, such as indirect water heaters, baseboards or ancoil units, or as modules or injection mixing. All supply and return lines

are 1 ". Up to 9 high temp modules can be installed on one mani old. Un-der certain conditions, such as with the use o a condensing boiler, a K31unit can be connected directly to the heat source, provided the ollowingconditions apply:

Proper ow is maintained through the heat source. Heat source can be set to desired temperature setting


No minimum return uid temperature is required for the heat source. All necessary conditions and piping practices, as outlined by the heat

source manu acturer, are properly maintained.

p r e s s u r e

[ f t h e a

d ]

ow rate [l/h]


ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

K31 - 1 "


K311 "






29/56


Low temperature zone module K32 with 3-way mixing valve 1 "/DN 32For heating zones controlled by motorized mixing with reset control

Features:











3-way mixing valvecompletely made o brass, characteristic curve prevariation in temperature, ow pipe can be shut o ,the pump can be replaced or serviced without drainthe system.

Flat sealing 2" male connectionsIncl. 2" union nut or the installation on PAW modutribution manifolds. Using PAW mounting equipment theheating circuit can be installed with wall brackets.









ow rate [l/h]


ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

USE in closed loop design. Low Temperature Zone Modules K32 are re-placing conventional injection mixing systems. In conjunction with anelectronic reset control and a direct drive actuator, the K32 modulates a

3-way valve, diverts and mixes radiant return water with hot water romthe boiler. The constant speed system circulator delivers the required wa-ter temperature to the radiant loop mani olds.

K32-1 "


K321 "






30/5630

05/2011


Low temperature zone module K34 1 "/DN 323-way mixing valve and adjustable bypass valve 0-50 %For low-temperature heating controlled by a mixing valve

Features:




Free access to the pump head by simply pulling o thecover.



Check valveIntegrated in the mixing valve, prevents unwanted cir-culation.

All water-carrying parts are made o brass



PAW heating circulation pumps - anged 2-boltalready installed, integrated in the insulation, pressuretested, serial numbered.

3-way mixing valvecompletely made o brass, characteristic curve preventsvariation in temperature. With the bypass valve (adjustableon the ront) 0-50% o the water rom the return line cabe mixed to the ow line.

Flat sealing 2" male connectionsincl. 2" union nut or the installation on PAW modular distbution mani olds. Individual installations with wall brackeare possible by using PAW mounting equipment.

USE in closed loop design. Low Temperature Zone Module K34 is replacingconventional injection mixing systems. In conjunction with an electronicreset control and a direct drive actuator, the K34 modulates a 3-way valve,diverts and mixes radiant return water with hot water rom the boiler. Theconstant speed system circulator delivers the required water temperatureto the radiant loop mani olds. Adjustable bypass diverts up to 50% o addi-tional return water to the system supply and lowers supply temperature toensure a speci c low supply water temperature is maintained and no ther-

mal shock will occur in the radiant slab.Sizing and piping: The K34 can handle radiant load demands o up to164 MBH. Your current method o zoning the radiant loops (mani olds, zonevalves, etc.) does not change with the installation o the K34. Multiple K34modules can be used to separate the distinctive temperature requirementsbetween mani olds. No special piping, just 2 connections and your installa-tion is complete.







p r e s s u r e

[ f t h e a

d ]

ow rate [l/h]


ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n

]

K34-1 "


K341 "






31/56


Low temperature zone module K38 with 4-way mixing valve 1 " - DN 32For heating mode with minimum temperature set by a mixing valve

Features:






Supply on the right = standardSupply and return line can be changed in lled.





4-way mixing valvecompletely made o brass, suitable or operation with a boicircuit pump when installing a single heating circuit, work oprimary circuit is possible by closed supply line (a change the boiler circuit with closed supply line is possible). Wheinstalling a single distribution mani old the return lineo the mixing valve must be equipped with a check valve to prevent unwanted circulation.

Flat sealing 2" male connectionsincl. 2" union nut or the installation on PAW mdistribution mani olds. Individual installations wibrackets are possible by using PAW mounting equipm

USE in closed loop design. Low Temperature Zone Modules K38 are repla-cing conventional injection mixing system. In conjunction with an electro-nic reset control and a direct drive actuator, the K34 modulates a 4-way

valve, diverts and mixes radiant return water with hot water rom theboiler. The constant speed system circulator delivers the required watertemperature to the radiant loop mani olds.



ow rate [l/h]


ow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n ]







K 38-1 "


K381 "






32/5632

05/2011


K36E zone module 1 "/DN 32with integrated temperature/ ow bypass valveWith thermal control valve, to compensate temperature di erences in solid uel boilers as well as in wood fring and stove heating systems

Features:

2" emale connections .Large ball valve handlesEasy handling, visible closing position.

Design insulation with optimized unction made o durable elastic EPP,100% insulation o the ttings , ventilation openings to cool the pumps.

Free access to the pump head by simply pulling o the cover.

Check valve in return pipeprevents any noise when electronically controlled pumps are used, manual opener,200 mm water column, spring-operated, thus suitable or horizontal and overheadinstallation.

Supply on the right = standard

The supply and return line can be changed in lled.All water-carrying parts are made o brass .

All-metal temperature gaugescan be pulled o , integrated in the ball valve with an immersion sleeve. Fully assembled with at gaskets .

PAW heating circulation pumps - anged 2-boltalready installed, integrated in the insulation, pressure tested, serial numbered.Fortechnical reasons electronically controlled pumps are not recommended inthe K36E modular heating circuit!

Flat sealing 2" male connectionsincl. 1 " union nut or the installation on PAW modular distribution mani olds.

Individual installations with wall brackets are possible by using the PAW mountingequipment.

Thermal control valve with automatic bypass and integrated bypass over-ow valve

ensures that the boiler always keeps a minimum temperature (= opening temperature+/- 5 F, +/- 3 C) and prevents the boiler rom contamination.

The special eature o the thermal control valve o the K36E heating circuit is theintegrated bypass over ow valve . By means o this adjustable valve the K36E canbe adjusted optimally to all possible working and mounting conditions: When mounted to a bu er storage tank or a hydraulic separator the over ow valve

must be closed. When the opening temperature in the boiler circuit is achieved,the power o the integrated boiler pump is high enough to load the storage tank/ hydraulic separator.

When mounted to distribution manifolds the pump pressure is reduced by means

of the integrated bypass valve. The pump must operate at speed stage II. Unwan -ted circulation, or example excessive charging o potable water storage tanks isprevented this way.

TECHNICAL DATA Zone Module K36EDimension 1 " - DN 32Opening temperature 122 F/131 F/140 F

50/55/60 CMaterials Fittings Brass



CV value 8.3Dimensions Zone module inlet 2" emale

Zone module outlet 1 " emaleCenter distance 125 mm/421 / 32"Length 435 mm/171 / 8"Width insulation 250 mm/927 / 32"Height insulation 462 mm/183 / 16"


p r e s s u r e

[ f t h e a

d ]

ow rate [l/h]

Pressure drop K36E/pump characteristicsow rate [USgpm]

p r e s s u r e

[ m w

a t e r c o

l u m n ]

K36E-1 "


33/56


PAW pumpIn ormation Item #Illustration Typ

K36E zone module with integrated pressure bypass valve 1 "/DN 32With thermal control valve, to compensate temperature di erences in solid uel boilers as well as in wood fring and stove heating systems




Option

Boiler temperaturetk is lower than theopening tempera-ture;tr = tk

Boiler temperature tkis higher than theopening temperatu-re. tr is approximatelequivalent to theopening tempera-ture.

Return line tempe-rature tz rom theconsumer is higherthan the openingtemperature; tr = tz

tz

tr

tk

tr

tz

tk

tr

Wall bracket set or PAW modular heating circuitNot required for installation in connection with a PAW modular distribution manifold. Using the wallbracket wall distances rom 142.5 mm up to 167.5 mm is possible. Consists o : steel wall bracket,galvanized, mounting equipment.

Wall bracket or heating circuits 1 "

Wilo Star S 21 FX

Wilo Star S 21 FX

Wilo Star S 21 FX

Connection set 1 "2 x insertion piece 2" male or nut thread 1 " NPT, brass

Thermal control valve with bypass and integrated over ow valve

Function:

1. The thermal control valve shuts o the connection to the heating/storagetank (load) as long as the water in the boiler circuit is colder than the openingtemperature o the thermal control valve. The pump in the K36E circulates thewater in the boiler loop by means o the automatic bypass which is completelyopen.

2. When the water in the boiler circuit has reached the opening temperature (+/- 5F) o the thermal control valve this valve opens the ow rom/to the load. Thebypass shuts o to the same extent as the ow to the load is opened.The control valve opens the return line o the load and enables the water tocirculate in the circuit depending on the setting o the integrated pressure by-pass valve. The cold water rom the consumer return line is mixed in the controlvalve with the hot water rom the bypass. Depending on the temperature andthe ow rate o the water rom the return line the thermal control valve shutso the connection to the lead. Thus the return line whi

Documents

PAW Heating Components and Solar Systems Brochure