background image

10

System scheme with sub-mounting kit

M

A

B

H

G

F

E

C

D

K

Fig. 8

A

Heating circuit without mixer

B

Heating circuit with mixer (underfloor heating cir-
cuit)

C

Bypass

D

Volume balancing line

E

Plate heat exchanger for system separation

F

3-way mixer

G

Heating circuit pump

H

Flow temperature sensor

K

Temperature 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

2.

1.

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

Summary of Contents for Sub Mounting Kit

Page 1: ...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 ...

Page 2: ...on 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 a ÖNORM EN ÖVGW TR Gas ÖVGW TRF and ÖVE c SEV SUVA SVGW SVTI SWKI VKF and EKAS guideline 1942 LPG part 2 Working on the ...

Page 3: ...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 mo...

Page 4: ...te 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 A 180 440 Fig 1 Position drain outlet for condensate A if available as shown in the diagram Installation requirements 5785 284 ...

Page 5: ...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 ...

Page 6: ...6 Fitting connection pipes 1 2 Fig 3 Gas condensing system boiler 1 Fig 4 Gas condensing combi boiler Insert flat gaskets and fit the connection pipes Fitting the sub mounting kit cont 5785 284 GB ...

Page 7: ... cylinder DHW B Heating 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 ...

Page 8: ...8 8 1 2 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 ...

Page 9: ...he 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...

Page 10: ...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 ...

Page 11: ...le individ ually Secure the cables so they cannot come into contact with the circulation pump Connecting the maximum temperature limiter or controller to the mixer control Separate installation instructions Commissioning and adjustment Filling and commissioning the heating system Boiler service instructions Danger Escaping gas leads to a risk of explosion Check all gas connections for tightness Ve...

Page 12: ...rrow towards A In the event of mixer control faults turn the rotary selector to manual and adjust the mixer manually emergency mode Adjusting the flow rate A Fig 13 1 Adjust the flow rate at ball valve A 2 Check the flow rate on the flow indicator accesso ries if installed Commissioning and adjustment cont 5785 284 GB ...

Page 13: ...ed open the bypass to minimise temperature peaks turn anti clockwise Fitting the casing 2 Ø 10 3 1 Fig 15 1 Secure retaining bracket with B 3 9 x 13 self tap ping screw to the casing 2 Slide the casing into the fixing rails from the front 3 Secure retaining bracket with screw and rawl plug to the wall Commissioning and adjustment cont 5785 284 GB ...

Page 14: ...sensor aJ No function sÖ Heating circuit pump fÖ Power supply fÖA Power outlet gS Mixer motor aVG KM BUS A1 Main PCB A2 PCB S1 DIP switch shown in factory setting X Electrical interfaces Connection and wiring diagram 5785 284 GB ...

Page 15: ...15 5785 284 GB ...

Page 16: ...hropshire TF1 7YP GB Telephone 44 1952 675000 Fax 44 1952 675040 E mail info uk viessmann com Viessmann Werke GmbH Co KG D 35107 Allendorf Telephone 49 6452 70 0 Fax 49 6452 70 2780 www viessmann com 5785 284 GB Subject to technical modifications ...

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