R553FKDB123

R553FKDB102 GIACOMINI | Alldatasheet

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Technical content

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com R553FKDB Datasheet 1028EN  09/2023 Brass manifold with dynamic flow balancing Brass manifold for HVAC systems with dynamic flow balancing and independent setting for each individual circuit, consisting of:

• delivery manifold with flow meters and lockshields for fluid shut-off function;
• return manifold with dynamic flow balancing valves and manual handwheel, pre-arranged for thermo-electric command via R473/R473M actuators;
• pair of R269T multifunction valves (delivery and return);
• R588Z metal brackets;
• R558Y001 key for lockshields shut-off;
• R73PY010 key for presetting.  NOTE. Manifolds with dynamic flow balancing are equipped with a data-tag with the “DB series” identification, the flow and Δp characteristics for both versions of the manifolds: Low Flow and High Flow. R73PY010 INCLUDED The R553FKDB manifolds are available in 2 versions, with distinct characteristics: High Flow version
• Flow meters scale: 0,5÷5 l/min
• Internal membrane of the bonnet: black color (visible only in case of bonnet replacement) Low Flow version
• Flow meters scale: 0,4÷2,6 l/min
• Internal membrane of the bonnet: red color (visible only in case of bonnet replacement)  Working differential pressure range: 20÷60 kPa  Working differential pressure range: 30/40÷150 kPa

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Versions and product codes PRODUCT CODE CONNECTIONS: MANIFOLD x OUTLETS No. OUTLETS CABINET R500-2 L x H x D R553FKDB102 G 1” x B.18

2 R500Y221

400x650x85÷130 mm R553FKDB103 3 R553FKDB104 4 R500Y222 600x650x85÷130 mm R553FKDB105 5 R553FKDB106 6 R553FKDB107 7 R553FKDB108 8 R500Y223 800x650x85÷130 mm R553FKDB109 9 R553FKDB110 10 R553FKDB111 11 R500Y224 1000x650x85÷130 mm R553FKDB112 12 PRODUCT CODE CONNECTIONS: MANIFOLD x OUTLETS No. OUTLETS CABINET R500-2 L x H x D R553FKDB122 G 1” x B.18 400x650x85÷130 mm R553FKDB123 3 R553FKDB124 4 R500Y222 600x650x85÷130 mm R553FKDB125 5 R553FKDB126 6 R553FKDB127 7 R553FKDB128 8 R500Y223 800x650x85÷130 mm R553FKDB129 9 R553FKDB130 10 R553FKDB131 11 R500Y224 1000x650x85÷130 mm R553FKDB132 12 Low Flow version: Δp 20÷60 kPa High Flow version: Δp 30/ 40÷150 kPa Optionals

• R500-2: flush-mounting metal cabinet, with adjustable depth
• R473, R473M: normally closed thermo-electric actuators equipped with R453Y002 plastic ring nut
• R178, R179, R179AM: B.18 adaptors Spare parts
• P12ADBX001: Low Flow bonnet with dynamic balancing (red internal membrane)
• P12ADBX002: High Flow bonnet with dynamic balancing (black internal membrane)
• P78MY002: flow meter with scale 0,4÷2,6 l/min
• P78MY001: flow meter with scale 0,5÷5 l/min
• R453Y002: plastic ring nut for thermo-electric actuators installation
• R588ZY001: metal bracket with supports
• R73PY010: regulation key for presetting

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  WARNINGS.

• R553FKDB manifolds are suitable for use in closed circuit systems and with non-aggressive fluids (water or water-glycol mix in compliance with VDI 2035/ONORM 5195).
• Mineral oils or mineral oil based lubricants in the heat transfer fluid may cause swelling and damage to EPDM gaskets.
• In case of using nitrite-free, ethylene glycol-based antifreeze and anti-corrosion products, observe the instructions in the documentation provided by the manufacturer and, in particular, the instructions concerning concentration and the use of specific additives.
• In case of high levels of sludge and other contaminants in the system water, is recommend flushing the system using a chemical cleaning product before installing the manifolds.  Technical data Low Flow version performances
• Fluids: water, glycol solutions (max. 30 %)
• Center distance between the outlets: 50 mm
• Temperature range: 5÷95 °C
• Max. working pressure: 10 bar
• Max. working pressure for air vent valves: 7 bar
• Flow rate setting range for each individual circuit: 20÷160 l/h
• Working differential pressure range: 20÷60 kPa
• Flow meters: scale 0,4÷2,6 l/min High Flow version performances
• Fluids: water, glycol solutions (max. 30 %)
• Center distance between the outlets: 50 mm
• Temperature range: 5÷95 °C
• Max. working pressure: 10 bar
• Max. working pressure for air vent valves: 7 bar
• Max. differential pressure with thermo-electric actuators installed: 1,5 bar
• Flow rate setting range for each individual circuit: 10÷250 l/h
• Working differential pressure range: 30/ 40÷150 kPa
• Flow meters:scale 0,5÷5 l/min Materials
• Delivery and return manifolds: UNI EN 12165 CW617N brass
• Multifunction valves: UNI EN 12165 CW617N brass
• Gaskets: EPDM
• Manifold brackets: galvanised steel
• Manual handwheel: plastic material
• Bonnet with dynamic balancing on return manifold: - command stem: stainless steel - bonnet body: UNI EN 12164 CW617N brass - sleeve and indicator ring: plastic material - O-Ring and stopper: EPDM - membrane: elastomeric material Adjustment accuracy ∆p max∆p min % error (Q) -40

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Components

1 Indicator ring

2 Command stem

3 Stopper

4 Regulator sleeves

5 Balancing membrane with controlled deformation

Bonnet with dynamic flow balancing

1 Delivery manifold with outlets equipped with flow meters

2 Return manifold with outlets with dynamic flow balancing valves

3 Multifunction valves equipped with drain cock, automatic air vent

valve, thermometer and shut-off ball valve

4 End plug

5 Metal brackets

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com The R553FKDB manifold controls the flow rate in each individual circuit of the system, within a minimum and maximum value of differential pressure, independently of the operating conditions of the other circuits. The manifold may be used in combination with the thermo-electric actuators to perform different functions:

• flow rate regulator: when the pressure changes, due to the opening or closing of some other circuits, the membrane of the bonnet cartridge deforms to alter the cross section of the fluid passage through the membrane itself and keep the flow rate at the preset value, even with high differential pressures: up to 60 kPa for the Low Flow version; up to 150 kPa for the High Flow version.
• presetting flow rate: the maximum design flow rate for each individual circuit may be set and maintained accurately at all times;
• optimising room temperature: the manifold may be used in combination with thermo-electric actuators and thermostats to allow more effective and efficient temperature control in multiple interior rooms. ∆p [kPa] ∆p max∆p min Q [l/h] Presetted flow rate  Operation DESIGN LOAD R553FK G 100 % G 100 % PARTIAL LOAD DESIGN LOAD R553FKDB PARTIAL LOAD G 0 % CLOSED CIRCUIT G 0 % CLOSED CIRCUIT G 100 % G 100 % G 100 % G 100 % G 100 % G 100 % G 100 % G 100 % G 100 % G 120 % G 120 % G 120 % R553FK R553FKDB Radiant system with R553FK manifolds, without dynamic flow balancing DESIGN LOAD R553FK G 100 % G 100 % PARTIAL LOAD DESIGN LOAD R553FKDB PARTIAL LOAD G 0 % CLOSED CIRCUIT G 0 % CLOSED CIRCUIT G 100 % G 100 % G 100 % G 100 % G 100 % G 100 % G 100 % G 100 % G 100 % G 120 % G 120 % G 120 % R553FK R553FKDB Radiant system with R553FKDB manifolds, with dynamic flow balancing Manifolds with dynamic flow balancing are used primarily in radiant systems. As can be seen in the example installation diagrams shown below, a system using DB manifolds series with dynamic flow balancing is capable to maintain the flow rates always balanced in all the circuits of the system.

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Installation  WARNING. Installation must be carried out by qualified personnel, following the instructions included in the packaging. Installation of R269T multifunction valves The R553FKDB manifold is supplied assembled on the R588Z metal brackets, pre-arranged for the connection of the R269T multifunction valves. The R269T valves are supplied with disassembled components and can be easily mounted with fluid supply both from the left and from the right using the self-sealing components. Fluid supply from the left 1) manually assemble the air vent valve and the drain cock using the self-sealing components; 2) manually install the air vent valve, the drain cock and the thermometer on the main body using the self-sealing components; 3) install the flat seat tail piece on the manifold bar using the self-sealing component and a R79B key; 4) connect the R269T valve to the manifold by inserting the gasket and tightening the flat seat tail piece nut; 5) install the end plug on the manifold bar using the self-sealing component and tightening it with a key. x2 x2 x2 x2 x2 R79B5 Nm Max 15 Nm 15 Nm Max 25 Nm Max 25 Nm x2 x2 x2 x2 x2 R79B5 Nm Max 15 Nm 15 Nm Max 25 Nm Max 25 Nm x2 x2 x2 x2 x2 R79B5 Nm Max 15 Nm 15 Nm Max 25 Nm Max 25 Nm x2 x2 x2 x2 x2 R79B5 Nm Max 15 Nm 15 Nm Max 25 Nm Max 25 Nm Fluid supply from the right 1) manually assemble the air vent valve and the drain cock using the self-sealing components; 2) for installation with adduction pipes from the right, the thermometer connection on the main valve body must face in the lower part; 3) manually install the air vent valve, the drain cock and the thermometer on the main body using the self-sealing components; 4) install the flat seat tail piece on the manifold bar using the self-sealing component and a R79B key; 5) connect the R269T valve to the manifold by inserting the gasket and tightening the flat seat tail piece nut; 6) install the end plug on the manifold bar using the self-sealing component and tightening it with a key.  WARNING. For installation with adduction pipes from the right, the main valve body must face with the thermometer connection in the lower part. x2 x2 x2 x2 x2 R79B Max 15 Nm Max 25 Nm Max 25 Nm 15 Nm 5 Nm x2 x2 x2 x2 x2 R79B Max 15 Nm Max 25 Nm Max 25 Nm 15 Nm 5 Nm x2 x2 x2 x2 x2 R79B Max 15 Nm Max 25 Nm Max 25 Nm 15 Nm 5 Nm x2 x2 x2 x2 x2 R79B Max 15 Nm Max 25 Nm Max 25 Nm 15 Nm 5 Nm x2 x2 x2 x2 x2 R79B Max 15 Nm Max 25 Nm Max 25 Nm 15 Nm 5 Nm  6

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  WARNING. To ensure the correct functioning of the system, it is important that the lockshields are set to either the fully open position or, if it is necessary to shut off the respective circuit, the completely closed position. Do not set the lockshields to any position between fully open and fully closed.  Regulating the system circuits Delivery manifold During normal operation, the lockshields on the delivery manifold should be in the fully open position. To shut off the flow of an individual circuit, close the respective lockshield completely. To open or close a lockshield proceed as follow: 1) remove the protective red cap; 2) rotate the lockshield with the appropriate Allen wrench, clockwise to close the circuit or counterclockwise to open the circuit: - the flow is completely shut off when the lockshield is completely closed; - when the lockshield is completely opened, the flow rate set with the dynamic balancing bonnet (return manifold) is circulating within the circuit and indicated on the graduated scale of the flow meter; 3) when the setting is complete, refit the protective red cap. 1 32 To connect the system circuit pipes use suitable adaptors for copper, plastic or multilayer pipes from the R178, R179, R179AM (Base 18) series.  WARNING. W h e n t i g h t e n i n g t h e a d a p t o r i t i s n e c e s s a r y t o u s e a b a c k u p spanner to hold the manifold fitting in place. Connecting the system circuits BACKUP SPANNER

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com Return manifold: presetting flow rate The flow rates of the individual circuits connected to the return outlets may be preset with the R73PY010 regulation key (included in package) within a setting range from 1 to 6, indicated on the cartridge of the bonnet. To preset the flow rates of the individual circuits: 1) identify the cartridge position corresponding to the desired flow rate using the flow rate presetting diagrams or tables; 2) remove the manual handwheel from the bonnet and fit the regulation key onto the cartridge; 3) turn the regulation key till the desired position appears in the key slot; 4) remove the regulation key and refit the manual handwheel or the thermo-electric actuator. R73PY010 R73PY010 R73PY010 R73PY010 R73PY010 R73PY010 R73PY010 R73PY010 R73PY010 R73PY010 Q [l/h] 0 30 60 90 120 150 ∆p [kPa] 200 150 100 250 Pos.1 10 l/h Pos.2 40 l/h Pos.3 90 l/h Pos.4 170 l/h Pos.5 200 l/h Pos.6 250 l/h

1 High Flow version

Q [l/h] 0 10 20 30 40 50 60 ∆p [kPa] 100 120 140 160 180 Pos.1 20 l/h Pos.2 60 l/h Pos.3 80 l/h Pos.4 100 l/h Pos.5 135 l/h Pos.6 160 l/h

1 Low Flow version

 NOTE. Δp min = Δp corresponding to a value ≥ 80 % of the preset flow rate. Setting position 1 2 3 (factory setting) 5 6 Flow rate [l/h] 20 60 80 100 135 160 Δp min [kPa] 20 20 20 20 20 20 Δp max [kPa] 60 Setting position 1 2 3 (factory setting) 5 6 Flow rate [l/h] 10 40 90 170 200 250 Δp min [kPa] 40 40 40 40 40 30 Δp max [kPa] 150

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com

1 R453Y002

15° PUSH R473/R473M A R453Y002 15° PUSH R473/R473M A R453Y002 15° PUSH R473/R473M A 4 R453Y002 15° PUSH R473/R473M A  WARNING. In case of use of R500-2 cabinets, to facilitate installation the thermo-electric actuators must be fitted with the red button (A) turned towards the interior of the cabinet. If required, the red button may be pressed before fitting the actuator onto the manifold. In this case, slightly more force will be necessary to subsequently connect the actuator. Return manifold: installing thermo-electric actuators Using normally closed thermo-electric actuators (R473, R473M) installed on the return manifold outlets, in combination with room thermostats, allows the room temperature to be maintained at the value set on the thermostats. The thermo-electric actuators must only be installed after presetting the flow rate on the dynamic balancing bonnet. To install the thermo-electric actuators proceed as follows: 1) remove the manual handwheel and fit the R453Y002 ring nut (inclued with the actuators package); 2) assemble the thermo-electric actuator on the ring nut, pressing just enough to lock them together; 3) turn the actuator about 15° until a click is heard (max. torque 5 Nm). To release the actuator, turn it again 15°); 4) press the red lockout button (A) and make the electrical connection of the actuator, following the wired diagram supplied with the actuator instructions.  VIDEO TUTORIAL FLUSHING AND FILLING PROCEDURE  WARNING. The system flushing and filling procedure for manifolds with dynamic balancing is different from “standard” manifolds. Carefully follow the instructions with the product to avoid damage to people or property.

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Dimensions PRODUCT CODE NO. OUTLETS A [mm] B [mm] C [mm] D [mm] E [mm] F [mm] G [mm] H [mm] I [mm] L [mm] M [mm] N [mm] O [mm] P [mm] R [mm] S [mm] T [mm] CABINET R500-2 R553FKDB102 R553FKDB122 2 149 B.18 36 95 208 108 G 1” 411 50 235 50 179 174 53 99 38 R500Y221 R553FKDB103 R553FKDB123 3 285 50 R553FKDB104 R553FKDB124 4 335 100 R500Y222 R553FKDB105 R553FKDB125 5 385 150 R553FKDB106 R553FKDB126 6 435 200 R553FKDB107 R553FKDB127 7 485 250 R553FKDB108 R553FKDB128 8 535 300 R500Y223R553FKDB109 R553FKDB129 9 585 350 R553FKDB110 R553FKDB130 10 635 400 R553FKDB111 R553FKDB131 11 685 450 R500Y224 R553FKDB112 R553FKDB132 12 735 500 R500Y221 (400x650x85÷130 mm) R500Y222 (600x650x85÷130 mm) R500Y223 (800x650x85÷130 mm) R500Y224 (1000x650x85÷130 mm) A O P L I B I I C R T S ED G H G F NM

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italia  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Product specifications R553FKDB Low Flow Pre-assembled manifold with dynamic flow balancing. Connections: G 1”F x B.18. Consisting of: brass delivery manifold with flow meters with 0,4÷2,6 l/min scale and lockshields for fluid shut-off function; brass return manifold with dynamic flow balancing valves (membrane with red color) and manual handwheel pre-arranged for thermo-electric actuators. Multifunction valves with drain cock, automatic air vent valve, thermometer and shut-off valve. EPDM gaskets. Galvanised steel brackets for manifolds. pressure: 10 bar. Max. working pressure of air vent valve: 7 bar. Flow rate setting range for each individual circuit: 20÷160 l/h. Working differential pressure range: 20÷60 kPa. R553FKDB High Flow Pre-assembled manifold with dynamic flow balancing. Connections: G 1”F x B.18. Consisting of: brass delivery manifold with flow meters with 0,5÷5 l/min scale and lockshields for fluid shut-off function; brass return manifold with dynamic flow balancing valves (membrane with black color) and manual handwheel pre-arranged for thermo-electric actuators. Multifunction valves with drain cock, automatic air vent valve, thermometer and shut-off valve. EPDM gaskets. Galvanised steel brackets for manifolds. Fluids: water, glycol solutions (max. 30%). Center distance between outlets: 50 mm. pressure with thermo-electric actuators installed: 1,5 bar. Flow rate setting range for each individual circuit: 10÷250 l/h. Working differential pressure range: 30/ 40÷150 kPa.  Package Disposal. Carton boxes: paper recycling. Plastic bags and bubble wrap: plastic recycling.  Product Disposal. Do not dispose of product as municipal waste at the end of its life cycle. Dispose of product at a special recycling platform managed by local authorities or at retailers providing this type of service.  Safety Warning. Installation, commissioning and periodical maintenance of the product must be carried out by qualified operators in compliance with national regulations and/or local standards. A qualified installer must take all required measures, including use of Individual Protection Devices, for his and others’ safety. An improper installation may damage people, animals or objects towards which Giacomini S.p.A. may not be held liable.  Additional information. For more information, go to giacomini.com or contact our technical at any time, without notice and for technical or commercial reasons, the items included herewith. The information included in this technical sheet do not exempt the user from strictly complying with the rules and good practice standards in force.