CALEFFI Altecnic 201-2001 Guide

201-2001

heat interface unit

Installation Operation & Maintenance Instructions

201-2001 heat interface unit

These instructions must be read and understood

before installing and maintaining the HIU.

CAUTION! FAILURE TO FOLLOW THESE

INSTRUCTIONS COULD RESULT IN A SAFETY

HAZARD!

1The device must be installed, commissioned and

maintained by qualiﬁed technical personnel in accordance

with national regulations and/or relevant local

requirements.

2If the device is not installed, commissioned and maintained

correctly in accordance with the instructions provided in

this manual, it may not work correctly and may endanger

the user.

3Flush the pipework thoroughly before installing the HIU to

remove any particles, rust, incrustations, limescale, welding

slag and any other contaminants.

The water circuits must be clean and free from debris.

4Make sure that all connection ﬁttings are watertight.

5When connecting water pipes, make sure that threaded

connections are not mechanically overstressed. Over time

this may result in breakage, causing water damage and/or

personal in ury.

6Water temperatures higher than 50˚C may cause severe

burns. When installing, commissioning and maintaining the

device, take the necessary precautions so that these

temperatures will not be hazardous for people.

7In the case of particularly hard or impure water, there must

be suitable provision for ﬁltering and treating the water

before it enters the device, in accordance with current

legislation. Failure to do so may result the HIU becoming

damaged or working incorrectly.

8Any use of the HIU other than it’s intended use is

prohibited

9Any coupling of the device with other system components

must be made while taking the operational characteristics

of both units into consideration.

10An incorrect coupling could compromise the operation of

the device and/or system.

11 If the system is prone to ‘water hammer’ a water hammer

arrester must be installed.

12If hot water recirculation is present or a non-return valve is

installed in the cold water inlet, provision must be made to

accommodate water expansion by ﬁtting an expansion

vessel.

Safety Instructions

Function

201-2001 Heat Interface Units (HIU) control the domestic hot

water and space heating in an individual apartment within a

centralised boiler or district heating system.

Wall mounted unit.

Content

Function and product range 1

Safety instructions 1

Technical speciﬁcation 2

Dimensions 3

Components 4

Schematic drawing 5

Installation 5

Electrical schematic 5

Technical speciﬁcation - 2-port control

valve actuator 6

Manual operation 6

Technical speciﬁcation - DPCV 6

Shutting off ﬂow 6

WARNING

DISCONNECT POWER SUPPLY

BEFORE REMOVING COVER

201-2001 heat interface unit

Safety Instructions

NOTE: Risk of electric shock. Live parts. Shut off the electric

supply before opening the HIU cover.

1During installation and maintenance operations, always

avoid direct contact with live or potentially hazardous parts.

2The device must not be exposed to water drops or humidity,

direct sunlight, the elements, heat sources or high intensity

electromagnetic ﬁelds.

This device cannot be used in areas at risk of explosion or

ﬁre.

3The device must be connected to an independent bipolar

switch. If work has to be done on the device, switch off the

electric supply ﬁrst. Do not use devices with automatic or

time reset, or which may be reset accidentally.

4Use suitable automatic protection devices in compliance

with current legislation.

5The device must always be earthed before it is connected to

the electric supply. If the device has to be removed, always

disconnect the earth connection after disconnecting the

electric supply. Check that the earth connection has been

made to the highest of standards under current legislation.

6Electrical installation only be carried out by a qualiﬁed

technician, in accordance with current requirements.

General Information

•Please leave the manual as a reference guide for the user.

•Dispose of any packaging in an appropriate manner, most

of which can be recycled.

•In this Installation, Operation and Maintenance guide we

have endeavoured to make the information as accurate as

possible.

We cannot accept any responsibility should it be found that in

any respect the information is inaccurate or incomplete or

becomes so as a result of further developments or changes to the

products.

Technical Specification

Medium: Water

Max. percentage of glycol 30%

Max. temperature: 85˚C

Max. static working pressure: Primary: 10 bar

Domestic hot water: 10 bar

Primary differential pressure capability: 0.9 bar

Actuator on 2-port control valves

Power supply: 230 V (ac)±10% 50 Hz

Power 6.5 W

7 VA

Protection class: IP 20

Maximum ambient temperature: 40˚C

Material

Components: brass BS EN 12165 CW617N

Back plate: galvanised steel

Key to Symbols

Primary circuit ﬂow

Primary circuit return

Domestic hotwaterﬂow

Heating circuit ﬂow

Combined return

201-2001 heat interface unit

Dimensions

DISCONNECT POWER SUPPLY

BEFORE REMOVING COVER

400

600

160 65

75.5 74

G G

G1B

514

Depth of backplate: 45mm

Depth overall: 185mm

201-2001 heat interface unit

Components

Item Com onent Item Com onent

1 Back plate 9 Strainer

2 Electric connection box 10 Impulse tube for DPCV

3 Mounting bracket 11 Blanking cap

4 Flushing bypass with off set connections 12 Tee piece

5 Female union ball valve 13 1” hexagon nipple

6 Female union ball valve with drain 14 2-port control valve

7 DPCV 15 ¾” ball valve

8 Spool piece

DISCONNECT POWER SUPPLY

BEFORE REMOVING COVER

201-2001 heat interface unit

Hydraulic connections

The whole system should be thoroughly flushed to remove

any debris that may be in the supply pipework to the HIU and

to the domestic hot water pipework in the apartment before

connecting the HIU.

Fix the HIU to the wall

N.B.: the wall anchors (not supplied) can only guarantee

effective support if inserted correctly (in accordance with

good technical practice) into walls built using solid or

semi-solid bricks. If working with walls built using perforated

bricks or blocks, mobile dividing panels or any masonry walls

other than those indicated, a preliminary static test must be

carried out on the support system.

Electrical

1electric supply line 230 V (ac) – 50 Hz - 3A.

Electrical Schematic

Schematic

Installation

The 201-2001 HIU is designed for installation in a sheltered

domestic environment (or similar), therefore cannot be installed

or used outdoors, i.e. in areas directly exposed to atmospheric

agents. Outdoor installation may cause malfunctioning and

hazards.

If the device is enclosed inside or between cabinets, sufﬁcient

space must be provided for routine maintenance procedures. It is

recommended that electrical devices are NOT placed underneath

the HIU, as they may be damaged in the event of leakage from

any hydraulic component of connection.

If this advice is not heeded, the manufacturer cannot be held

responsible for any resulting damage.

In the event of a malfunction, fault or incorrect operation, the

device should be deactivated; contact a qualiﬁed technician for

assistance.

Preparation

After establishing the position where the HIU will be installed,

perform the following operations:

•Mark the holes required for securing the HIU to the wall.

•Mark the position of the water pipe connections.

Check the measurements again before installing pipework and

electrical cables.

Hydraulic connections

1connection to the pipework from the centralised boiler plant

2space heating circuit connection

3domestic water circuit connection

LNE

230V 3A RATED

L N

HOT WATER

HEATING ON

ROOM STAT

PROGRAMMER

HEATING

ZONE VALVE

CYLINDER

STAT

12345678910

HOT WATER

ZONE VALVE

LSL

201-2001 heat interface unit

Technical Specification - Actuator of 2-port Control Valve

Materials: - base and cover: PC G 10

Synchronous motor: Normally closed

Supply: 230 V - 50 Hz

Power consumption: 6.5 W; 7 VA

Opening time: 70 to 75 s

Closing time: 5 to 7 s

Microswitch contacts rating: 0.8A

Protection class: IP 40

Max. ambient temperature: 40˚C

Complies with Directive: 72/23/EC and

89/336/EC

Length of power cable: 95 cm

Operation

With the electrical supply off, the actuator keeps the valve in the

closed position.

When a temperature thermostat or other electrical device switches

the supply on, the actuator moves the disc in the valve into the open

position.

When the supply is turned off, the valve closes again due to the

action of a return spring.

Construction

Auxiliary microswitch

The actuator is fitted with a microswitch to operate devices such as,

for example, a circulating pump. The microswitch comes on when

the valve is 60% open.

Manual opening

The valve can be opened manually by moving

the lever to the lock open position. When the

power is restored the manual control is

automatically overridden.

Clip on actuator

A rapid clip-on system makes it easy to remove the actuator from

the body of the valve for maintenance or replacement operations.

Operation

The actuator is fitted with a special mechanism for gradual

movement of the valve disc which prevents udder and vibration due

to the inertia of the gear motor.

Removing the actuator

1 Set the lever on the side of the actuator to the open position (or

to manual opening).

2 Press the open button on the side of the actuator and remove

the actuator.

Fitting the actuator

1 Set the lever on the side of the actuator to the open position (or

manual opening).

2 Check that the actuator is correctly positioned with respect to

the valve as determined by the different dimensions of the

operating stem and the locking pin.

3 Press the open button fully down. Clip on the actuator and

release the button.

Technical Specification - Differential Pressure Control Valve

Medium: water, glycol solution

Max. percentage of glycol: 50%

Max. working pressure: 16 bar

Temperature range: -10 to 120˚C

Diaphragm max. differential pressure: 6 bar

∆p setting range: 50 to 300 mbar

5 to 30 kPa

Connections

Capillary tube connection size: G¹/

Tightening torque: 4 to 7 Nm

Length of capillary Ø3 mm 1.5 m

∆p indicator

The operation of setting the ∆p

differential regulating valve is

simplified by the presence of the

mobile indicator (1) and the

graduated scale (2) in mbar on the

valve knob.

Shutting off the flow and maintaining the ∆p setting

It is possible to isolate the circuit controlled by the differential

regulating valve.

The mechanism to stop the flow is built into the valve.

The circuit is shut off by inserting an

Allen wrench into the hole and

turning it fully clockwise.

This allows the flow to be shut-off for

system maintenance without having

to reset the valves after re-opening.

201-2001 heat interface unit

Altecnic Ltd Mustang Drive, Stafford, Staffordshire ST16 1GW

T: +44 (0)1785 218200 E: [email protected]

Registered in England No: 2095101

altecnic.co.uk

IOM 103 12-12-17

E & O.E

©Altecnic Limited. 2017

ALTECNIC™

Differential Pressure Control Valve Continued

Locking/sealing the regulated position

On the knob and on the valve body

there are special holes that can be

used to seal the devices, once the

regulation operations have been

completed.

The application of sealing means

that, during any inspections, it can

be easily seen if the system has not

been tampered with.

Seal

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