WATTS HKV2013AF 1 Inch Stainless Steel Heating Circuit Manifold with Flow Meters User Manual

: June 4, 2024
: WATTS

Table of Contents

General information
Safety
Technical data
Pressure loss diagrams
Pressure-temperature diagram
Dimensions
Components overview
Installation and commissioning
Disposal
Warranty
References
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Series HKV2013AF
1″ Stainless steel heating circuit manifold with flow meters
Installation and operating manual

General information

1.1 Requirements
The installer or user must read, understand and observe this installation and operating manual before carrying out any operation. The heating manifold may only be fitted, adjusted, and maintained by trained specialist personnel. Trainees may only work on the product under the supervision of an experienced person. The manufacturer will only accept any liability in line with statutory provisions if the above instructions have been adhered to. All instructions in this installation and operating manual are to be observed when using this heating manifold. This manual is an integral part of the product and must be available to all users throughout its entire service life. This manual is protected by copyright and may not be altered without the manufacturer’s permission.

1.2 Product conformity
The HKV2013AF heating manifold conforms to DIN EN 1264-4 “Water based surface embedded heating and cooling systems”.
1.3 Product description

Stainless steel round pipe manifold on the mounting bracket.
1” male thread with flat sealing on both sides.
Shut-off flow meter with particularly low-pressure loss.
Regulating and shut-off valve with M30 × 1.5 adaptation.
Fastening, air vent key, and sticker set for identifying the heating circuit included in delivery.
Option: Ball valve and end set for flushing, filling and venting.

Safety

2.1 Presentation of the safety information

WARNING Warning of possible serious injury if the instruction is not followed.
CAUTION Warning of possible injury if the instruction is not followed.
NOTICE Warning of possible damage to property if the notice is not observed.

2.2 Intended use
The manifolds are used for distributing and regulating the flow rate in low- temperature floor heating or cooling systems.
2.3 Foreseeable misuse

Operating the heating circuit manifold contrary to the specifications.
Making modifications to the heating circuit manifold not agreed with the manufacturer.
Using replacement or wear parts not approved by the manufacturer.

Technical data

Hydraulic data

Max. operating pressure| 10 bar (see Pressure
Temperature Diagram)
Medium temperature| -10 to 80 °C (see Pressure Temperature Diagram)
Media| Water or water with glycol as per VDI 2035
Connections
Primary circuit and end set| G 1″ male thread
Heating circuit| G 3/4″ male thread with Eurocone
Tightening torque| 3/4″ srew fittings: 25-30 Nm 1″ screw fittings: 55 Nm
Connection for actuator| M30 x 1.5 / closing point 11.8 mm / stroke 2.5
Materials
Manifold| Stainless steel 1.4301
Flow meter| CW 617 N, PPS
O-rings| EPDM
Flat seals| AFM/2
End set (optional)| CW 617 N

Pressure loss diagrams

The adjustment diagram already allows for the specific pressure losses in the flow meter, flow control valve, and 2 compression fittings.

Pressure-temperature diagram

A: 100% Water
B: 70% Water & 30% propylene glycol
C: 70% Water & 30% ethylene glycol

Dimensions

| Outlets

2 3 4 5 6 7 8 9 10 11 12

---|---
L1 = HKV| 160,0| 210,0| 260,0| 310,0| 360,0| 410,0| 460,0| 510,0| 560,0| 610,0| 660,0
L2 = HKV + KFE90 (C)| 209,5| 259,5| 309,5| 359,5| 409,5| 459,5| 509,5| 559,5| 609,5| 659,5| 709,5
L3 = HKV + Q1 (B)| 219,4| 269,4| 319,4| 369,4| 419,4| 469,4| 519,4| 569,4| 619,4| 669,4| 719,4
L4 = KH (A) + HKV + KFE90 (C)| 271,5| 321,5| 371,5| 421,5| 471,5| 521,5| 571,5| 621,5| 671,5| 721,5| 771,5
L5 = KH (A) + HKV + Q1 (B)| 281,4| 331,4| 381,4| 431,4| 481,4| 531,4| 581,4| 631,4| 681,4| 731,4| 781,4

Components overview

Components

Installation and commissioning

WARNING
Hot water!
Do not hold pipework or components while the unit is in operation.
Allow the heating manifold to cool before carrying out any maintenance, cleaning, or work repair.

8.1 Pipe installation

Cut the plastic, copper, or multilayer pipe to a length perpendicular and deburr/calibrate. Push the clamping ring nut over the pipe.

Push the grab ring onto the pipe and insert the hose nozzle.

Push the conical end of the pipe all the way into the connection on the manifold.

Tighten the clamping ring nut by hand. Push the plastic, copper, or multilayer pipe up to the stop.

Hold the outlet screw connection using a 24 mm open-end wrench or spanner and tighten the clamping ring nut using an open-end wrench 30 mm open-end spanner (approx. 25-30 Nm). Fit the pipe without any tensile, compressive or torsional forces. Do not exceed the max. torque stated in the installation instructions for the compression joint used.

8.2 Shutting off the heating circuit

The valves on the return can be closed, e.g. for flushing and filling the heating circuit. To do this, put the protective cap on the valve and close it by turning it clockwise.

The flow meter can be closed with an air vent key. However, this is not necessary for filling and flushing the circuits.
If the flow meter is shut off, the following opening sequence must be observed in order to avoid malfunction or damage. First, open the flow meter, then the control valve.

8.3 Flushing and filling the circuits

CAUTION Material damage!
Water hammer may occur if the shut-off valves are opened and closed quickly. Always open and close the shut-off valves slowly and in a controlled way.

Close ball valves 1 and 2 on the manifold.
Close all valves on the return using the protective caps.
Attach the flushing and filling hose to the fill and drain valve 3 on the supply side; the discharge outlet on fill and drain valve 4 must be open.

All flow meters must be completely open.

Completely open the valve on the circuit to be flushed using the protective cap.
The system pressure must not exceed 3 bar when flushing and filling.
Flush the circuit with clear water.
Once flushing is over, close the control valve and flush/fill the next circuit.
Once the flushing and filling procedures are complete, remove the hose from the end set (fill and drain valves 3 and 4).
When venting using the end set Q1 and KFE90, follow illustrations A and B on this page.
The protective end caps are to be fully closed off once the system has been flushed and filled

8.4 Adjusting the flow rate

CAUTION Material damage!
Flowmeter must not be used to adjust the flow rate!

Remove the protective cap on the relevant heating circuit and close the valve with an air vent key by turning it clockwise (= min. setting).

Adjust the flow rate by turning the regulating spindle anticlockwise on the return valve. The actual value can be read from the flow meter. Do not use the flow meter to adjust the flow. Once all the circuits have been set, check the flow values and readjust if necessary.

The fine thread of the adjusting spindle must not be visible above the edge of the AF19 hexagonal nut! Once it is closed, the valve is open (full flow) after 2.5 to 3 turns anticlockwise.

The protective cap or the actuator should be screwed back on once the adjustment work is complete. This prevents the valves from accidental adjustment and from getting dirty.

Disposal

Dispose of the product and packaging in accordance with local laws and regulations or recycle them.

Warranty

WATTS products are tested extensively. WATTS, therefore, guarantees only the replacement or, at the sole discretion of WATTS, the free-of-charge repair of components of the supplied products where these, in the opinion of WATTS, exhibit verifiable manufacturing faults. Warranty claims due to defects or defects of title may be asserted within one (1) year of delivery/transfer of risk. Excluded from the warranty are damages attributable to normal use of the product or wear and damages resulting from modifications or non-authorized repairs on the products, for which WATTS rejects all claims for compensation (direct or indirect). (For more detailed information, please refer to our website.) In all cases, supply is subject to the General Terms and Conditions, which can be found at www.wattswater.eu/gtc/.
The descriptions and photographs contained in this product specification sheet are supplied by way of information only and are not binding. Watts Industries reserves the right to carry out any technical and design improvements to its products without prior notice.” Warranty: All sales and contracts for sale are expressly conditioned on the buyer’s assent to Watts terms and conditions found on its website at www.wattswater.eu/gtc/. Watts hereby objects to any term, different from or additional to Watts terms, contained in any buyer communication in any form, unless agreed to in a writing signed by an officer of Watts.

Watts Industries Deutschland GmbH
Godramsteiner Hauptstr. 167 • 76829 Landau • Deutschland
Tel. +49 6341 9656 0 • Fax +49 6341 9656 560
WIDE@wattswater.com • www.wattswater.de
Contacts Watts in Europe: www.wattswater.eu/contacts/
© 2022 Watts
HKV2013AF-IM-DE-W-DE-UK-NL-FR-09-2022-Rev.1 | Artikel-Nr. 10086671