Connection set, DHW circulation pump Installation ... · Connection set, DHW circulation...
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5712 866 GB 3/2010 Dispose after installation.
Installation instructionsfor contractors
VIESMANN
Connection set, DHW circulation pumpfor Vitodens and Vitoladens
Safety instructions
Please follow these safety instructions closely to prevent accidents andmaterial losses.
Safety instructions explained
! Please noteThis symbol warns against therisk of material losses and envi-ronmental pollution.
NoteDetails identified by the word "Note" con-tain additional information.
Installation, initial start-up, inspection,maintenance and repairs must only becarried out by a competent person (heat-ing engineer/installation contractor).
Before working on the equipment/heat-ing system, isolate the power supply(e.g. by removing a separate mains fuseor by means of a mains isolator) andsafeguard against unauthorised recon-nection.
When using gas as fuel, also close themain gas shut-off valve and safeguardagainst unauthorised reopening.
Repairing components which fulfil asafety function can compromise the safeoperation of your heating system. For replacements, use only originalspare parts supplied or approved byViessmann.
Application information
■ Vitodens 222-F, type FS2A, FS2B■ Vitodens 333-F, type FS3A, FS3B
■ Vitodens 333-F, type FR3A, FR3B■ Vitoladens 333-F, type VP3T, VP3U
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Vitodens 222-F, type FS2A andVitodens 333-F, type FS3A and Vito-ladens 333-F, type VP3T
Connect the DHW circulation pump tothe external extension H1 or H2.
Installation instructions, externalextension
Vitodens 222-F, type FS2B, Vitodens333-F, type FS3B and Vitoladens 333-F, type VP3U
Connect the DHW circulation pump toextension AM1 or EA1.
Installation instructions, exten-sion
Vitodens 333-F, type FR3A and typeFR3B
Connect the DHW circulation pump tothe internal extension inside the boilercontrol unit.
Boiler installation instructions
Making the electrical connections of the circulation pump
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Fitting external extension H2
1.
2.
A
The external extension H2 A can be fit-ted inside the boiler.
Making the electrical connections of the… (cont.)
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Fitting extension AM1 or EA1
3.
4.
2.
1.
Secure extension AM1 or EA1 to theretainer supplied.
Making the electrical connections of the… (cont.)
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Fit plastic sleeve A in the following boilers:■ Vitodens 222-F, type FS2A■ Vitodens 333-F, type FR3A■ Vitoladens 333-F, type VP3T
! Please noteDo not fit plastic sleeve A in thefollowing boilers:■ Vitodens 222-F, type FS2B■ Vitodens 333-F, type FS3A■ Vitodens 333-F, type FR3B■ Vitoladens 333-F, type VP3U
1.
3.
2.
A
NoteStep 2: Bend the plastic sleeve A carefully; do not kink it.
Fitting the connection set57
12 8
66 G
B
6
1.
2.
3.
A
NoteHere, install the shorter of the two twinnipples A.
Fitting the connection set (cont.)
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2.
1.
Fitting the connection set (cont.)
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4.
3.
1.
2.
Fitting the connection set (cont.)
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2.
1.
?3.
A
NoteHere, install the longer of the two twinnipples A.
Fitting the connection set (cont.)
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According to EN 806, the line volume inside the DHW circulation line should be cir-culated three times per hour to prevent excessive cooling.The flow rate is adjusted at flow regulating valve A.
L1
L 2
A
Calculating the required circulation vol-ume Vp (volume of the total DHW circu-lation and supply line):
Line volume of copper pipe:Int. diameterDN
Line volume VLl/m
12 0.1315 0.2020 0.31
Example:■ Supply line DN 20, line length L1
= 20 m■ DHW circulation line DN 12, line length
L2 = 20 m■ Circulation volume Vp = 3 x V/h
V = L1 x VL + L2 x VLV = 20 m x 0.31 l/m + 20 m x 0.13 l/mV = 6.2 l + 2.6 lV = 8.8 lVp = 3 x V/hVp = 3 x 8.8 l/hVp = 26.4 l/h = 0.44 l/min
Value to be set at the flow regulatingvalve: 0.44 l/min.
Adjusting the circulation volume
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Flow regulating valve
B A
DD
FB A
0.30.51.0
1.5
l/min
!0.30.51.0
1.5
Adjusting the circulation volume (cont.)
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Viessmann LimitedHortonwood 30, TelfordShropshire, TF1 7YP, GBTelephone: +44 1952 675000Fax: +44 1952 675040E-mail: [email protected]
Viessmann Werke GmbH&Co KGD-35107 AllendorfTelephone: +49 6452 70-0Fax: +49 6452 70-2780www.viessmann.com
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