Viessmann Sub Mounting Kit Manual de usuario

Installation instructions

for contractors

VIESMANN

Sub-mounting kit

Heating circuit distributor for Vitodens 200-W up to 35 kW

Sub-mounting kit

5785 284 GB 6/2016 Dispose after installation.

Please follow these safety instructions closely to

prevent accidents and material losses.

Safety instructions explained

Danger

This symbol warns against the risk of injury.

Note

Details identified by the word "Note" contain additional

information.

Target group

These instructions are exclusively intended for author-

ised contractors.

■Work on gas installations must only be carried out by

a registered gas fitter.

■Work on electrical equipment must only be carried

out by a qualified electrician.

Regulations to be observed

■National installation regulations

■Statutory regulations for the prevention of accidents

■Statutory regulations for environmental protection

■Codes of practice of the relevant trade associations

■All current safety regulations as defined by DIN, EN,

DVGW, TRGI, TRF, VDE and all locally applicable

standards

aÖNORM, EN, ÖVGW-TR Gas, ÖVGW-TRF and

ÖVE

cSEV, SUVA, SVGW, SVTI, SWKI, VKF and

EKAS guideline 1942: LPG, part 2

Working on the system

■Isolate the system from the power supply (e.g. by

removing the separate fuse or by means of a mains

isolator) and check that it is no longer 'live'.

■Safeguard the system against reconnection.

■Where gas is used as the fuel, close the main gas

shut-off valve and safeguard it against unintentional

reopening.

Safety instructions

5785 284 GB

1. Preparing for installation Installation requirements ........................................................................ 4

Installation preparations ......................................................................... 4

■Drain outlet positioning ....................................................................... 4

2. Installation sequence Fitting the sub-mounting kit .................................................................... 5

■Fitting connection pipes ...................................................................... 6

■Connecting the DHW cylinder (gas condensing system boiler) or

DHW lines (gas condensing combi boiler) .......................................... 7

Fitting the boiler ..................................................................................... 8

Connecting the heating circuits .............................................................. 9

■Connecting heating circuits with permeable pipework ........................ 10

Electrical connections ............................................................................ 11

■Connecting the mixer control to the boiler control unit ....................... 11

■Connecting the maximum temperature limiter or controller to the

mixer control ....................................................................................... 11

Commissioning and adjustment ............................................................. 11

■Filling and commissioning the heating system ................................... 11

■Venting the heating circuit with mixer ................................................. 11

■Position of switch on the mixer motor ................................................. 12

■Adjusting the flow rate ........................................................................ 12

■Adjusting the bypass .......................................................................... 13

■Fitting the casing ................................................................................ 13

Connection and wiring diagram ............................................................. 14

Index

5785 284 GB

A pre-plumbing jig for installation on finished walls is

required for fitting the sub-mounting kit.

Connection pipes and clips are supplied with the pre-

plumbing jig.

Provide a gas shut-off valve on site with min. DN 15

and thermally actuated gas shut-off device.

Pre-plumbing jig installation instructions

Note

A DHW cylinder cannot be installed below the boiler

when a sub-mounting kit is used.

Ambient temperature max. 35 °C

Installation preparations

Drain outlet positioning

180

440

Fig. 1

Position drain outlet for condensate A (if available) as

shown in the diagram.

Installation requirements

5785 284 GB

Ø 10

R1/2

Fig. 2

1. Align the drilling template below the fitting assem-

bly of the pre-plumbing jig.

2. Drill holes 7 10 mm and insert rawl plugs.

3. Fit the clips to the sub-mounting kit.

4. Secure the sub-mounting kit to the wall with the

screws and washers supplied.

5. Secure the mounting plate to the fitting assembly

using screws M 4 x 10 (self-tapping).

6. Secure the gas pipe with clip to the mounting plate.

7. Seal the on-site gas shut-off valve to the gas pipe.

Fitting the sub-mounting kit

5785 284 GB

Fitting connection pipes

Fig. 3 Gas condensing system boiler

Fig. 4 Gas condensing combi boiler

Insert flat gaskets and fit the connection pipes.

Fitting the sub-mounting kit (cont.)

5785 284 GB

Connecting the DHW cylinder (gas condensing system boiler) or DHW lines (gas condensing

combi boiler)

Fig. 5

AHeating water flow, DHW cylinder/DHW

BHeating water return, DHW cylinder/cold water

1. Route the connection lines to the DHW cylinder or

cold water line and DHW line below the sub-

mounting kit.

2. Connect on-site connection lines to the fitting

assembly of the pre-plumbing jig.

Pre-plumbing jig installation instructions

Fitting the sub-mounting kit (cont.)

5785 284 GB

8.1.

Fig. 6

1. Fit the retaining rails for the casing. 2. Hook the boiler onto the pre-plumbing jig.

Boiler and pre-plumbing jig installation

instructions

Fitting the boiler

5785 284 GB

HV1

HR2

HV2

HR1

Fig. 7

HR1 Heating water return, heating circuit without

mixer G ¾

HR2 Heating water return, heating circuit with mixer

G ¾

HV1 Heating water flow, heating circuit without mixer

G ¾

HV2 Heating water flow, heating circuit with mixer G ¾

1. Secure the twin connectors with flat gaskets to the

connections of the sub-mounting kit.

If available:

Fit a flow indicator (accessories) with flat gasket in

place of the twin connector to the heating water

return of the heating circuit without mixer.

2. Connect the heating circuits to the connection

pipes of the sub-mounting kit.

Do not alter the position of the heating circuit con-

nections, so the casing can be fitted later.

Connecting the heating circuits

5785 284 GB

System scheme with sub-mounting kit

A B

Fig. 8

AHeating circuit without mixer

BHeating circuit with mixer (underfloor heating cir-

cuit)

CBypass

DVolume balancing line

EPlate heat exchanger for system separation

F3-way mixer

GHeating circuit pump

HFlow temperature sensor

KTemperature limiter to restrict the maximum tem-

perature of underfloor heating systems

Information regarding the heating circuit with

mixer

Install a drain & fill valve on site, in the flow of the heat-

ing circuit with mixer. This is required during commis-

sioning for filling and venting the heating circuit.

The expansion vessel integrated into the boiler can

also be used for the heating circuit with mixer.

Check whether the size of the integral expansion ves-

sel is adequate for the connected heating circuits.

Information on the underfloor heating circuit

Fit maximum temperature limiter K to the heating flow

line at least 1 m downstream of the circulation pump.

Connecting heating circuits with permeable pipework

When connecting heating systems with permeable

pipework (DIN 4726), seal off the volume balancing

line between the two heating circuits.

Note

If the volume balancing line has been removed, install

a separate expansion vessel in the regulated heating

circuit.

Removing the volume balancing line

Fig. 9

1. Undo the union nuts and remove the balancing line

and locking rings.

2. Seal the connections with the plugs and union nuts

supplied.

Lubricate the O-rings with the valve grease sup-

plied.

Connecting the heating circuits (cont.)

5785 284 GB

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