Skov DA 4200 flow sensor Technical User Guide

Brand: Skov

Model: DA 4200 flow sensor

Type: Technical User Guide

DA 4200 Flow Sensor

Technical User Guide

604556 • 2023-06-16 439302

DA 4200 Flow Sensor

2 439302 Technical User Guide

1 Product description

439302 DA 4200 flow sensor is used as spare parts for DA 4200 heating units/floor heating units DN25 or DN32

with SmartHeat.

DA 4200 Flow Sensor

Technical User Guide 439302 3

2 Mounting guide

2.1 Recommended tools

Below is a list of tools recommended for assembly.

Topic Description

Screwdriver set

Side cutter

Water pump pliers

Pipe wrench

Adjustable spanner

DA 4200 Flow Sensor

4 439302 Technical User Guide

2.2 Mounting of flow sensor

Flush supply pipes before connecting them.

Before start-up, fill up the system with water.

Close the 4 ball valves.

Loosen the 3 unions.

DA 4200 Flow Sensor

Technical User Guide 439302 5

Dismount flow sensor, pipe and the 3 gaskets.

Mount a new flow sensor and a new gasket. Turn the

flow sensor so the arrow on the brass housing faces

up towards the blue actuator.

If necessary, turn the housing of flow sensor to the

best readable position.

Mount the short pipe and the 2 new gaskets.

DA 4200 Flow Sensor

6 439302 Technical User Guide

Tighten the 3 unions.

Open the 4 ball valves.

DA 4200 Flow Sensor

Technical User Guide 439302 7

3 Installation guide

3.1 Electrical connection

Installation, servicing and troubleshooting of all electrical equipment must be carried out by quali-

fied personnel in compliance with the applicable national and international standard EN 60204-1

and any other EU standards that are applicable in Europe.

The installation of a power supply isolator is required for each motor and power supply to facilitate

voltage-free work on the electrical equipment. The power supply isolator is not included.

3.2 General information about circuit diagrams

Symbols are in accordance with the IEC/EN 60617 standard.

The classification of the symbols ("letter codes") on the symbols is in accordance with the IEC/EN 81346-2 stan-

dard.

Reference designations are in accordance with IEC/EN 81346-1:2001 structuring principles and reference des-

ignations. This standard indicates structured methods for naming electrotechnical systems.

3.2.1 Power supply isolator

Power supply isolator

The installation of a power supply isolator is required for each motor and

motor control.

3.2.2 Letter code

The letter codes used in accordance with standard IEC/EN61346-2.

-F -K -M -Q -S -T -W

Protective equipment RCCB /

Initial fuse Protective motor

switch

Controller

Contactor

Fan

Motor

Power supply

isolator

Switch Motor con-

troller

Cable

DA 4200 Flow Sensor

8 439302 Technical User Guide

3.3 Cable plans and circuit diagrams

3.3.1 DA 4200 SmartHeat room heating

3.3.1.1 Cable plan

Controller

Heating unit

Power supply isolator

Connection box

Can possibly carried in the same cable

3.3.1.2 Circuit diagram

Note to which terminal numbers the defect flow sensor are connected, mount the new flow sensor to the

same terminal numbers.

0-10 V actuator

DOL 12

Supply flow

DOL 12

Return flow Circulation pump

Connection box

Flow sensor

Possibly external supply

+24V

Connection box

DA 4200 Flow Sensor

Technical User Guide 439302 9

3.3.2 DA 4200 SmartHeat floor heating

3.3.2.1 Cable plan

Controller

Floor heating unit

Power supply isolator

Connection box

Can possibly carried in the same cable

3.3.2.2 Circuit diagram

Note to which terminal numbers the defect flow sensor are connected, mount the new flow sensor to the

same terminal numbers.

0-10 V actuator

DOL 12

Supply flow

DOL 12

Return flow Circulation pump

Connection box

DOL 12 control

temperature

Flow sensor

+24V

Possibly external supply

Connection

box

DA 4200 Flow Sensor

10 439302 Technical User Guide

4 Testing

Testing after replacement of the flow sensor.

• Check that there are no leaks.

• Check that the wheel of the flow sensor is turning.

• Check that the arrow on the brass housing of the flow sensor faces up towards the blue actuator.

• Check that the flow meter is counting up, otherwise the flow meter is facing the wrong way.

• When the pipes are hot, check that the kWh is counted up in the controller's menu as a result of the heat

consumption in the house.

DA 4200 Flow Sensor

Technical User Guide 439302 11

5 Maintenance instructions

The flow sensor does not require special maintenance.

A coarse filter in the flow meter's inlet pipe can be removed and cleaned in case of problems with the flow.

5.1 Cleaning

Be aware that the pipes must be cold before cleaning, otherwise the dirt will stick to them.

Clean the product with a cloth that has been wrung out almost dry in water and avoid using:

• high-pressure cleaner

• solvents

• corrosive/caustic agents

5.2 Recycling/Disposal

Products suitable for recycling are marked with a pictogram.

It must be possible for customers to deliver the products to local collection sites/recycling stations in accordance

with local instructions. The recycling station will then arrange for further transport to a certified plant for reuse,

recovery and recycling.

DA 4200 Flow Sensor

12 439302 Technical User Guide

6 Technical data

6.1 Flow sensor

Flow sensor

Mechanical

Min. flow l/h 100

Max. flow l/h 4700

Output reed-switch 1 pulse per liter

*Accuracy max. kWh % ±10

Max. water temperature °C 90

Thread " 1

Length mm 130

Environment

Operating temperature °C +2 to +60

Temperature, storage °C +2 to +60

Protection class IP 44

Shipment SmartHeat kit

Dimensions when packed

HxWxD

mm 260x190x150

Shipping weight g 906

* At differential temperature (flow temperature – return flow temperature) ≥ 5 °C and between +30 °C to +90 °C

flow temperature.

DA 4200 Flow Sensor

Technical User Guide 439302 13

6.2 Flow diagram

6.2.1 DA 4200 SmartHeat room heating

Distribution system/heat source

Return flow Supply flow

House

(A) 3-way control valve

(B) Actuator 0-10 V

(D) Non-retur valve

(E) Flow sensor

(F) Ball valve

(G) DOL 12-100C temperature sensor

6.2.2 DA 4200 SmartHeat floor heating

Distribution system/heat source

Return flow Supply flow

Supply flow

Return flow

House

(A) 3-way control valve

(B) Actuator 0-10 V

(D) Non-retur valve

(E) Flow sensor

(F) Ball valve

(G) DOL 12-100C temperature sensor

604556 • 2023-06-16 • en-US • Made in Denmark

SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev

Tel. +45 72 17 55 55 • www.skov.com • E-mail: [email protected]

Skov DA 4200 flow sensor Technical User Guide

Skov DA 4200 flow sensor Technical User Guide

Skov DA 4200 flow sensor Technical User Guide

Related papers

Other documents