Viessmann VITOCELL 300B Bedienungsanleitung

300litre capacity 500litre capacity

VITOCELL 300B

Installation instructions

for contractors

Vitocell300B

TypeEVB

DHW cylinder with internal indirect coils

300 and 500 litre capacity

5592782GB3/2007

Safety instructions

Please follow these safety instructions closely to prevent accidents and

material losses. For safety instructions in conjunction with boilers, see

separate installation instructions.

Safety regulations

Installation, commissioning,

inspection, maintenance and

repairs must only be carried out

by a competent person (heating

engineer/ installation contractor).

Observe all current safety

regulations as defined by DIN,

EN, DVGW, TRGI, TRF and VDE or

locally applicable standards.

See also the "Safety instructions" in

the "Vitotec technical documentation"

folder.

Before working on the equipment/

heating system, isolate the power

supply (e.g. by removing a separate

mains fuse or by means of a main

isolator) and safeguard against

unauthorised reconnection.

¨Safety instructions

In this instruction manual, this

heading denotes information which

must be observed to prevent

accidents and material losses.

¨This symbol denotes important

information which must be

observed to prevent material

losses.

Product information

DHW cylinder with internal indirect coils, made from stainless steel for

heating domestic hot water in conjunction with boilers, district heating or

low temperature heating systems for dual−mode operation.

300 and 500litre capacity

Suitable for systems conforming to DIN1988, DIN4751 and DIN4753.

DIN registration applied for.

5592782GB

DHW cylinder installation

General information

¨Safety instructions

Install the DHW cylinder in a

frost−protected and draught−free

room. Otherwise it must be drained

when not in use and there is a risk

of frost.

Provide adequate clearance from

the wall so that the thermostat can

be operated (if installed).

!Please note

The thermal insulation must

not be able to come into

contact with naked flames.

Exercise caution when welding

and soldering.

Aonly for 300litres capacity:

Equipotential bonding

(outer jacket)

HR1 Heating water return*1

HR2/STS Heating water return

and cylinder temperature

sensor for solar operation*2,3

HV1 Heating water flow*1

HV2 Heating water flow*2

KW Cold water

STS Cylinder temperature sensor

or control thermostat

(upper internal indirect coil)

STS/TH Cylinder temperature sensor

or control thermostat and

thermometer sensor

(lower internal indirect coil)*3

WW DHW

Z DHW circulation

*1The upper internal indirect coil is provided for connection to a boiler or a heat pump.

*2The lower internal indirect coil is provided for connection to solar collectors or heat

pumps.

*3Recommended arrangement of the cylinder temperature sensor for solar operation:

With threaded elbow (accessory) in the heating water return.

5592782GB

HV1

HR1

HR2/STS

STS/TH

HV2

STS

DHW cylinder installation (cont.)

Installing a DHW cylinder with 300litres capacity

1. Level the DHW cylinder with its

adjustable feet.

¨Safety instruction

Never extend the adjustable feet

beyond a total length of 35mm.

2. Remove the top panel and the

thermal insulation mat.

3. Affix the cable channel.

4. Route the sensor lead of the lower

thermometer through the opening

and the cable channel.

5. Seal in the reducing connections

and sensor wells.

6. Secure the thermometer sensor

on the outside of the contact

spring of the sensor retainer (not

in the groove) so that it is flush

with the front of the spring.

Note

Never wrap insulating tape around

the sensor.

7. Insert the sensor retainer together

with the sensor into the lower

sensor well until it bottoms out.

5592782GB

DHW cylinder installation (cont.)

Installing a DHW cylinder with 500litres capacity

!Please note

The thermal insulation must not be able to come into contact with

naked flames. Exercise caution when welding and soldering.

All components required for fitting the thermal insulation can be found in the

thermal insulation carton.

1. Remove the pack containing the

type plate from the cylinder body,

and keep safe.

2. Push the thermal insulation mat

underneath the DHW cylinder.

3. Level the DHW cylinder with its

adjustable feet.

¨Safety instruction

Never extend the adjustable feet

beyond a total length of 35mm.

5592782GB

3. 2.

DHW cylinder installation (cont.)

1Push the thermal insulation jacket

onto the flange.

2. Route the sensor lead of the upper

thermometer (shorter lead) and

the lower thermometer (longer

lead) through the opening and

push in the thermometers.

3. Guide the sensor of the lower

thermometer over the cylinder

body to the back of the cylinder

and out through the cut−out in the

thermal insulation for the heating

water flow (HV2 see page3).

Note

Install the sensor into the sensor

well as shown on page8.

4. Close the hooks on the closure

strips.

5. Insert the sensor of the upper

thermometer into the hole of the

cylinder cap until it bottoms out,

then secure with a clip to prevent

pulling out.

6Position the thermal insulation

mat and lid.

7. Push the logo (from the type plate

pack) into the lid.

5592782GB

5. 7.

DHW cylinder installation (cont.)

1. Seal in the reducing connections.

2. Seal in the sensor well.

3. Affix the type plate.

5592782GB

Installing the sensor well and the cylinder temperature sensor

HThe cylinder temperature sensor for the heating side is supplied in the

package of the appropriate control unit. The solar side cylinder temperature

sensor is supplied in the package of the solar control unit.

HSecure the sensor on the outside of the contact spring of the sensor retainer

(not in the groove) so that it is flush with the front of the spring.

HNever wrap insulating tape around the sensor.

HInsert the sensor retainer together with the sensor into the sensor well until

it bottoms out.

¨Safety instruction

For the sake of maximum operational reliability, use the sensor well supplied

for the control unit sensor. If the sensor to be used does not fit this sensor

well, use a different stainless steel sensor well (1.4571 or 1.4435).

5592782GB

Installing the cylinder temperature sensor for solar operation

In case of solar operation, install the cylinder temperature sensor with a

threaded elbow (accessory) into the heating return (solar return).

Insert the sensor until it bottoms out inside the sensor well.

300litres capacity

500litres capacity

5592782GB

Connecting the earth bonding

Connect the earth bonding in

accordance with the requirements

stipulated by your local electricity

supply company and current local

regulations.

5592782GB

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