R280KCY000

R280KC-1114 GIACOMINI | Alldatasheet

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Technical content

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

• Quick installation, reduced on-site manpower and costs
• Quick connection (only 4 connections required)
• Avoids installation errors
• Semplified commissioning Benefits for planners
• Simplified solution for the design of all required components
• Avoids installation errors Compact kit for terminal units (fan coils) R280KC Datasheet 1114EN  04/2024 Preassembled compact kit combining the components required for balancing, control, flushing and commissioning of HVAC terminal units (fan coils, chilled beams, etc.) with the main distribution network. The kit consists of a diverting ball valve to bypass the unit, a full-port ball valve with integrated filter, a pressure independent control valve (PICV), a drain cock and four pressure ports to measure the differential pressure and the flow rate. Thanks to the two ball valves it is possible to clean the filter and operate on the unit with no need to drain the entire system. The kit is quick to install thanks to the use of only four connections which also prevent possible errors. Its pressure independent control valve (PICV) enables to regulate and keep constant the flow rate in the terminal unit when the differential pressure of the main circuit varies. The terminal unit can also be isolated and the flow can be bypassed through the ball valves installed. The water flow entering the terminal unit, which also runs through the PICV, is filtered by the filter integrated in the shut-off ball valve. The drain cock drains the water during maintenance and flushing operations. R280KC VIEW OF INTERNAL COMPONENTS R280KC WITH INSULATION AND ACTUATOR ASSEMBLED  PRESENTATION

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

• Fluids: water, glycol-based solutions (max. 50 % of glycol)
• Working temperature range: 5÷120 °C
• Ambient temperature: 1÷50 °C
• Max working pressure: 25 bar
• Flow rate setting range (based on PICV setting): see “Versions and product codes” table
• Max differential pressure at PICV ends: see “Versions and product codes” table
• Filtering capacity: 500 μm
• Venturi flow meter Kv: see “Versions and product codes” table
• Actuator connection: M30 x 1,5 mm Materials
• Main components: CW617N - UNI EN 12165 brass
• PICV body: “DZR” CW602N - UNI EN 12165 DZR brass
• Ball valve gaskets: PTFE
• Gaskets of other components: EPDM
• Filter mesh: AISI 304 stainless steel
• Insulation: expanded PPR for R280KCY000/001/002 expanded PE for R280KCY003 PICV PRODUCT CODE CONNECTIONS CENTER DISTANCE SUPPL Y-RETURN [mm] KIT Kv, IN BY-PASS Kv VENTURI FLOW METER DN WORKING FLOW RATE RANGE [l/h] WORKING DIFFERENTIAL PRESSURE RANGE [kPa] ACTUATORS FOR PICV (accessories)WITH R473/R473M WITH K281 OR NO ACTUATORL (LOW) H (HIGH) R280KCY000 1-1/2”UNS-M x G 1”M 60 2,3 1,4 15 35÷520 (single range) 25÷400 25÷800 K281, R473 R280KCY001 1-1/2”UNS-M x G 1”M 60 2,3 1,9 15 150÷380 180÷630 25÷400 25÷800 K281, R473 R280KCY002 1-1/2”UNS-M x G 1”M 60 2,3 4,5 20 290÷1000 860÷1500 25÷400 25÷800 K281, R473 R280KCY003 G 1-1/2”M x G 1”M 80 3,7 9,0 25 600÷3500 (single range) n.d. 25÷400 K281  Versions and product codes Spare parts
• R73PY010: key for PICV flow rate presetting Accessories
• K281X022: ON/OFF actuator, 24 V
• K281X062: 0...10 V actuator for flow rate proportional linear control, 24 V
• K281X063: 0...10 V actuator for flow rate proportional linear control, 24 V, with fail safe
• R473X221: 230 V thermo-electric actuator, normally closed, 2-conductor wire, IP40, 2,5 W
• R473X222: 24 V thermo-electric actuator, normally closed, 2-conductor wire, IP40, 2,5 W
• R453FY002: M30 x 1,5 mm adapter ring for installation of R473/R473M thermo-electric actuators
• R225EY001: electronic differential pressure gauge and flow rate calculator, including M10 x 1 mm needle probes
• P206Y001: pair of pressure ports
• P206Y011: pair of adjustable fittings with pressure ports
• P15M: pair of male threaded tail pieces, including nut and sealing gasket (see table below)
• P15F, R37K: pair of female threaded tail pieces, including nut and sealing gasket (see table below)
• P15E: pair of eccentric male threaded tail pieces to reduce the supply-return center distance from 60 to 40 mm, including nut and sealing gasket (see table below)  NOTE. Pairs of tail pieces to be ordered separately. Additional fitting versions are available upon request for connection of the kit. TAIL PIECES FOR BOILER ROOM SIDE CONNECTIONS SERIES PRODUCT CODE CONNECTION P15F* P15FY023 1-1/2”UNS-F x G 1/2”F P15FY024 1-1/2”UNS-F x G 3/4”F P15FY025 1-1/2”UNS-F x G 1”F R37K R37KY005 G 1-1/2”F x G 1”F TAIL PIECES FOR FAN COIL SIDE CONNECTIONS SERIES PRODUCT CODE CONNECTION P15M* P15Y015 G 1"F x G 1/2"M P15Y016 G 1"F x G 3/4"M P15Y017 G 1"F x G 1"M P15F* P15FY003 G 1”F x Rp 1/2” P15FY004 G 1”F x Rp 3/4” P15FY005 G 1”F x Rp 1” P15E* P15EY014 G 1”F x G 3/4”M * Only for R280KCY000, R280KCY001, R280KCY002 codes. Only for R280KCY003 code. * For all R280KCY000, R280KCY001, R280KCY002, R280KCY003 codes.

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

1 Diverting ball valve for kit bypass

2 Ball valve with integrated filter

3 Pressure independent control valve (PICV)

4 Drain cock

5 Probe holder

Diverting ball valve (Ref.1) The diverting ball valve provides a bypassing function thanks to the special shape of its ball. The two ball vaves included in the kit are full port, to limit the pressure loss. Ball valve with integrated filter (Ref. 2) The valve includes a filter inside its ball. Close the valve to remove the filter without draining the system (see “Maintenance”). The filter features a 500 μm filtering capacity while the valve is a full-port model (DN25) that guarantees the highest flow rate. Pressure independent control valve (PICV) (Ref. 3) The PICV provides top-notch energy efficiency and state-of-the-art control of the flow rate. It is a 3-in-1 valve (DPCV, balancing and control) for quick and convenient commissioning with no setting design required by the planner. The PICV can be controlled automatically through a proportional actuator (0...10 V) to set the flow rate within the working range defined by the cartridge calibration, or through an ON-OFF actuator to shut off the circuit. These two control options enable the PICV to perfectly adapt itself to the type of control required by the system.  Hydraulic diagram Diverting ball valve for kit bypass Ball valve with integrated filter Probe holder Pressure independent control valve (PICV) Venturi flow meters Drain cock A Boiler room B Terminal unit (fan coil) A B

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italy  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Installation The R280KC kit is provided fully preassembled inside the insulation shell. The kit must be installed upstream of the terminal unit (fan coil) and it includes the main components required for state- of-the-art operation. It can be installed in any direction, yet the ball valve with integrated filter and the PICV with its actuator cannot be installed upside down.   Reversibility of supply and return circuit  NOTE. All kits are reversible except for the R280KCY003 kit, which is not reversible. The position of the supply and return circuits can be reversed to meet the system requirements. 1) Default configuration: supply on top and return on bottom. 2) Remove the kit from the insulation shell. 3) Loosen nuts (B) and (F), then remove the PICV (C) and the valve with integrated filter (G) from the assembly. Turn the diverting valve (A) by 180°. Reassemble the PICV (C) and the valve with integrated filter (G) reversing their position while making sure to invert the installation position of both pressure ports (D) and (I), caps (E) and (H), and then turn the drain cock (L) by 180°. Turn the two insulation shells upside down. The front shell will become the back shell and vice versa. Reassemble the closing caps of insulation shells (M), (N), (O), (P) and (Q) in the corresponding new positions. 4) Replace the kit in the insulation shell. 5) New configuration: supply on the bottom and return on the top. FRONT BACK BA F FRONT  BACK BACK  FRONT 180° 180° 180° 180° M M N O P Q N O P Q C D E G H I L Max 30 Nm Max 30 Nm r b rb r b rb rb r b rb r b rb r b FRONT BACK BA F FRONT  BACK BACK  FRONT 180° 180° 180° 180° M M N O P Q N O P Q C D E G H I L Max 30 Nm Max 30 Nm r b rb r b rb rb r b rb r b rb r b FRONT BACK BA F FRONT  BACK BACK  FRONT 180° 180° 180° 180° M M N O P Q N O P Q C D E G H I L Max 30 Nm Max 30 Nm r b rb r b rb rb r b rb r b rb r b FRONT BACK BA F FRONT  BACK BACK  FRONT 180° 180° 180° 180° M M N O P Q N O P Q C D E G H I L Max 30 Nm Max 30 Nm r b rb r b rb rb r b rb r b rb r b FRONT BACK BA F FRONT  BACK BACK  FRONT 180° 180° 180° 180° M M N O P Q N O P Q C D E G H I L Max 30 Nm Max 30 Nm r b rb r b rb rb r b rb r b rb r b  TUTORIAL

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italy  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com Fan coil for floor installation FAN COIL BOILER ROOM FAN COIL BOILER ROOM Fan coil for ceiling or trench heater installation FAN COIL BOILER ROOM FAN COIL BOILER ROOM  Operation The R280KC kit provides the following operations: 1) Normal operation All ball valves open (Components - Ref.1 and 2) and drain cock closed (Components - Ref.4).  WARING. During normal operation make sure the drain cock is closed with its cap on. CLOSED CLOSED OPEN OPEN OPEN CLOSED DRAIN OPEN DRAIN CLOSED 2) System flushing / Maintenance The fan coil can be completely isolated to flush the system by closing the two ball valves (Components - Ref.1 and 2). This will prevent debris from entering the fan coil and the PICV (Components - Ref.3). CLOSED CLOSED OPEN OPEN OPEN CLOSED DRAIN OPEN DRAIN CLOSED 3) Fan coil flushing with reversed flow Return ball valve open (Components - Ref.1), supply ball valve with integrated filter closed (Components - Ref.2) and drain cock open (Components - Ref.4). CLOSED CLOSED OPEN OPEN OPEN CLOSED DRAIN OPEN DRAIN CLOSED  NOTE. Flushing and maintenance operations comply with the BG 29/2021 (BSRIA) guidelines.  HOW IT WORKS

Prior to commissioning, the system must be flushed according to the indications described in “Operation”.  Commissioning The pressure independent control valve (PICV) (Components - Ref.3) is equipped with a dual-scale flow rate setting:

• L (LOW): for low flow rates
• H (HIGH): for high flow rates To set the valve to the required flow rate, turn the valve stem clockwise or counterclockwise using the R73PY010 key (included with the kit) till reaching the corresponding value printed on the bonnet plastic disk (refer to the table below to identify it.) Change over from one setting scale to the other can be implemented at any time, even when the system is on; this enables to select the required max flow rate without replacing the valve. The dual scale guarantees a more accurate regulation as the controlled flow rate range is narrowed down and does not require the use of cartridges with different characteristics. L 1 5 7
• • H1• L 1 5 7
• • H1• L 1
• 3 •5• H••3 L 1 5 7
• • H1• L 1 5 7
• • H1• L 1
• 3 •5• H••3 Presetting of max flow rate, PICV System commissioning Fully open the shut-off valves and start up the hydraulic system.  WARNING. Install an air vent valve on the system circuit to release the air after servicing and cleaning the components. R90 air vent valve can be installed in place of the plug on the diverter valve (except for R280KCY003). R90X003 PRODUCT CODE WORKING DIFFERENTIAL PRESSURE RANGE [kPa] WORKING FLOW RATE RANGE [l/h] WITH R473 THERMO- ELECTRIC ACTUATOR WITH K281 ACTUATOR OR NO ACTUATOR SETTING SCALE MIN 1 2 3 4 5 6 7 8 9 R280KCY000 25÷400 25÷800 SINGLE 35 95 120 230 310 400 460 520 - - R280KCY001 25÷400 25÷800 L (LOW) - 150 175 200 250 300 340 380 - - H (HIGH) - 180 250 350 440 500 570 630 - - R280KCY002 25÷400 25÷800 L (LOW) - 290 400 500 640 730 900 1000 - - H (HIGH) - 860 900 940 1110 1270 1330 1500 - - R280KCY003 N/A 25÷400 SINGLE - 600 1000 1200 1600 2000 2300 2800 3100 3500

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italy  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com The differential pressure range and the water flow rate inside the kit can be read through the probe holders, their probes and the R225E differential pressure gauge. Reading of the PICV differential pressure BLUE RED Reading of the terminal unit differential pressure BLUE RED Reading of the differential pressure/flow rate through the Venturi flow meter BLUE RED  Reading the differential pressure and flow rate

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italy  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Actuators installation and electrical connections Actuators installation Two different types of actuators can be installed to automize the pressure independent control valve (PICV). Install the K281 actuators by screwing the ring nut on the M30 x 1,5 mm threaded connection of the valve body. Install the R473 thermo-electric actuators with Clip Clap connection on the threaded connection of the valve body after having assembled the R453FY002 adaptor ring nut (to be ordered separately). PRODUCT CODE POWER SUPPL Y [V] TYPE K281X022 24 ON/OFF K281X062 24 0...10 V K281X063 24 0...10 V R473X221 230 ON/OFF R473X222 24 ON/OFF R473X221 R473X222 electric connections Termostati ambiente / Room thermostats NC C NO NC C NO NC C NO N1N1N1 R2 R3 R473X221

230 Vac

2,5W R473X222

24 Vac

2,5W MARRONE (BROWN) MARRONE (BROWN) MARRONE (BROWN) MARRONE (BROWN) BLU (BLUE) BLUE BLUE BROWN BROWN BLUE BLUE BLUE BLUE Termostati ambiente / Room thermostats NC C NO NC C NO NC C NO N1N1N1 R2 R3 R473X221 2,5W R473X222 2,5W MARRONE (BROWN) MARRONE (BROWN) MARRONE (BROWN) MARRONE (BROWN) BLU (BLUE) BLUE BLUE BROWN BROWN BLUE BLUE BLUE BLUE Termostati ambiente / Room thermostats NC C NO NC C NO NC C NO N1N1N1 R2 R3 R473X221 2,5W R473X222 2,5W MARRONE (BROWN) MARRONE (BROWN) MARRONE (BROWN) MARRONE (BROWN) BLU (BLUE) BLUE BLUE BROWN BROWN BLUE BLUE BLUE BLUE K281X022 electric connections CONNECTION COLOR FUNCTION Black (BLK) Common (-) Red (RED) Phase (+) Orange (ORN) Control BLK RED ORN 1 2 3 ̃24 Vac/dc K281X062 electric connections CONNECTION COLOR FUNCTION Black (BLK) Common (-) Red (RED) Phase (+) Grey (GRY) Control signal Orange (ORN) Feedback signal BLK RED GRY ORN 1 2 3 4 DC 0(2)...10 V (+) Y (+) U(-)

24 Vac/dc

K281X063 electric connections CONNECTION COLOR FUNCTION Black (BLK) Common (-) Red (RED) Phase (+) Grey (GRY) Control signal 0..10 Vdc Orange (ORN) Feedback signal BLK RED GRY ORN 1 2 3 4 0..10 V (+) Y (+) U(-)

24 Vac/dc [***]

 Maintenance Check the kit at least once a year upon seasonal change over from heating to cooling. During inspection, check the components below:

• Ball valve filter: rinse under running water (see “Cleaning the filter”.)
• Actuator: check its operation; should it fail to work with proper wiring, replace the actuator.
• Ball valves: check operations of the ball valves.  NOTE. For periodical maintenance, also refer to the local standards. Cleaning the filter 1) Close the ball valve with integrated filter (Components - Ref.2). 2) Loosen the octagonal cap of the ball valve with integrated filter using a 30-mm wrench. 3) Remove the filter and rinse it under running water. 4) Re-insert the filter inside the valve making sure the filter hole (A) points in the opposite direction of the flow (shown by an arrow on the valve body) (B). 5) Tighten the octagonal cap (max torque 10 Nm), open the ball valve and resume regular operation of the system. A B Max 10 Nm 30 mm 1 2 3 4 5  Dimensions PRODUCT CODE CONNECTIONS A x B C [mm] D [mm] E [mm] F [mm] G [mm] H [mm] I [mm] R280KCY000 1-1/2”UNS-M x G 1”M 60 205 184 147 190 176 175R280KCY001 R280KCY002 R280KCY003 G 1-1/2”M x G 1”M 80 314 265 140 212 178 N/A D E F H I A A C G B B R280KC R280KC + K281 R280KC + R473

Giacomini S.p.A. Via per Alzo 39, 28017 San Maurizio d’Opaglio (NO) Italy  consulenza.prodotti@giacomini.com  +39 0322 923372 - giacomini.com  Product specifications R280KCY000 Preassembled kit for connection and control of heating and cooling system terminal units. Pressure independent control valve (PICV), shut-off ball valves with integrated filter, diverting ball valve, drain cock and pressure ports with cap included. 1-1/2”UNS-M x G 1”M connections, DN15. Connection center distance: 60 mm. Range for flow rate setting: 35÷520 l/h. Max working pressure: 25 bar. Nominal Δp working range (PICV): 25÷400 kPa with R473 actuator; 25÷800 kPa with K281 actuator or no actuator. Working temperature range 5÷120 °C. Ambient temperature range 1÷50 °C. Filtering capacity: 500 μm. Venturi flow meter Kv: 1,4. Actuator connection M30 x 1,5 mm. Fluids: water, glycol-based solutions (max 50 % of glycol.) Main components: CW617N - UNI EN 12165 brass. PICV body: “DZR” CW602N - UNI EN 12165 DZR brass. PTFE ball valve gaskets. Gaskets of other components in EPDM. AISI 304 stainless steel filter. Expanded PPR insulation. R280KCY001 Preassembled kit for connection and control of heating and cooling system terminal units. Pressure independent control valve (PICV), shut-off ball valves with integrated filter, diverting ball valve, drain cock and pressure ports with cap included. 1-1/2”UNS-M x G 1”M connections, DN15. Connection center distance: 60 mm. Dual range for flow rate setting: 150÷380 l/h; 180÷630 l/h. Max working pressure: 25 bar. Nominal Δp working range (PICV): 25÷400 kPa with R473 actuator; 25÷800 kPa with K281 actuator or no actuator. Working temperature range 5÷120 °C. Ambient temperature range 1÷50 °C. Filtering capacity: 500 μm. Venturi flow meter Kv: 1,9. Actuator connection M30 x 1,5 mm. Fluids: water, glycol-based solutions (max 50 % of glycol.) Main components: CW617N - UNI EN 12165 brass. PICV body: “DZR” CW602N - UNI EN 12165 DZR brass. PTFE ball valve gaskets. Gaskets of other components in EPDM. AISI 304 stainless steel filter. Expanded PPR insulation. R280KCY002 Preassembled kit for connection and control of heating and cooling system terminal units. Pressure independent control valve (PICV), shut-off ball valves with integrated filter, diverting ball valve, drain cock and pressure ports with cap included. 1-1/2”UNS-M x G 1”M connections, DN20. Connection center distance: 60 mm. Dual range for flow rate setting: 290÷1000 l/h; 860÷1500 l/h. Max working pressure: 25 bar. Nominal Δp working range (PICV): 25÷400 kPa with R473 actuator; 25÷800 kPa with K281 actuator or no actuator. Working temperature range 5÷120 °C. Ambient temperature range 1÷50 °C. Filtering capacity: 500 μm. Venturi flow meter Kv: 4,5. Actuator connection M30 x 1,5 mm. Fluids: water, glycol-based solutions (max 50 % of glycol.) Main components: CW617N - UNI EN 12165 brass. PICV body: “DZR” CW602N - UNI EN 12165 DZR brass. PTFE ball valve gaskets. Gaskets of other components in EPDM. AISI 304 stainless steel filter. Expanded PPR insulation. R280KCY003 Preassembled kit for connection and control of heating and cooling system terminal units. Pressure independent control valve (PICV), shut-off ball valves with integrated filter, diverting ball valve, drain cock and pressure ports with cap included. G 1-1/2”M x G 1”M connections, DN25. Connection center distance: 80 mm. Flow rate setting range: 600÷3500 l/h. Max working pressure: 25 bar. Nominal Δp working range (PICV): 25÷400 kPa with K281 actuator or no actuator. Working temperature range 5÷120 °C. Ambient temperature range 1÷50 °C. Filtering capacity: 500 μm. Venturi flow meter Kv: 9,0. Actuator connection M30 x 1,5 mm. Fluids: water, glycol-based solutions (max 50 % of glycol.) Main components: CW617N - UNI EN 12165 brass. PICV body: “DZR” CW602N - UNI EN 12165 DZR brass. PTFE ball valve gaskets. Gaskets of other components in EPDM. AISI 304 stainless steel filter. Expanded PE insulation.  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.