Viessmann VITOCAL 300-A Guía rápida

Installation and service

instructions

for contractors

VIESMANN

Vitocal 300-A

Type AWCI-M-AC 301.A

Type AWO-M-AC 301.A

Air/water heat pump with electric drive, 230 V~

For applicability, see the last page

VITOCAL 300-A

5692 875 GB 7/2011 Please keep safe.

Please follow these safety instructions closely to prevent accidents and mate-

rial losses.

Safety instructions explained

Danger

This symbol warns against the

risk of injury.

!Please note

This symbol warns against the

risk of material losses and envi-

ronmental pollution.

Note

Details identified by the word "Note" con-

tain additional information.

Target group

These instructions are exclusively

designed for qualified contractors.

■ Work on the refrigerant circuit must

only be carried out by qualified and

authorised refrigeration engineers

■ Work on electrical equipment must

only be carried out by a qualified elec-

trician

■ The system must be commissioned by

the system installer or a qualified per-

son authorised by the installer

Regulations

Observe the following when working on

this system:

■ National installation requirements

■ Legal instructions regarding the pre-

vention of accidents

■ Legal instructions regarding environ-

mental protection

■ The Code of Practice of relevant trade

associations

■ All current safety regulations as

defined by DIN, EN, DVGW, VDE and

all locally applicable standards

aÖNORM, EN and ÖVE

cSEV, SUVA, SVTI and SWKI

Working on the system

■ Isolate the system from the power sup-

ply and check that it is no longer 'live',

e.g. by removing the separate fuse or

by means of a main isolator

Note

In addition to the control circuit, there

may be several power circuits.

Danger

Contact with 'live' components

can lead to severe injuries.

Some components on the

PCBs will remain 'live' even

after the power supply has

been switched off.

Before removing covers from

appliances, wait at least 4

minutes for the power to dissi-

pate.

■ Safeguard the system against unau-

thorised reconnection

Safety instructions

5692 875 GB

!Please note

Electronic assemblies can be

damaged by electrostatic dis-

charges.

Before beginning work, touch

earthed objects, such as heating

or water pipes, to discharge static

loads.

Repair work

!Please note

Repairing components that fulfil a

safety function can compromise

the safe operation of your sys-

tem.

Replace faulty components only

with original Viessmann spare

parts.

Auxiliary components, spare and

wearing parts

!Please note

Spare and wearing parts that

have not been tested together

with the system can compromise

its function. Installing non-author-

ised components and making

non-approved modifications or

conversions can compromise

safety and may invalidate our

warranty.

For replacements, use only orig-

inal spare parts supplied or

approved by Viessmann.

Safety instructions

Safety instructions (cont.)

5692 875 GB

Installation instructions

Preparing for installation

Product information.............................................................................................. 6

General information - electrical connection.......................................................... 6

Internal heat pump, type AWCI-M-AC 301.A....................................................... 7

External heat pump type AWO-M-AC 301.A........................................................ 14

Overview of possible system schemes................................................................ 24

System example 1, ID: 4605093_1006_01.......................................................... 25

System example 2, ID: 4605305_1006_01.......................................................... 33

DHW heating........................................................................................................ 41

Installation sequence

Removing the transport brackets......................................................................... 46

Fitting the outer panels......................................................................................... 48

Fitting the silencer hoods (only type AWO-M-AC 301.A)..................................... 55

Siting the heat pump............................................................................................ 56

Connecting the heating circuits and condensate drain........................................ 59

Electrical connections in the control panel........................................................... 63

Electrical connections in the heat pump control unit............................................ 71

Power supply........................................................................................................ 97

Closing the heat pump......................................................................................... 103

Service instructions

Commissioning, inspection, maintenance

Steps - commissioning, inspection and maintenance.......................................... 105

Further details regarding the individual steps....................................................... 106

Troubleshooting

Repair................................................................................................................... 120

Parts lists

Parts list type AWCI-M-AC 301.A......................................................................... 124

Parts list type AWO-M-AC 301.A......................................................................... 130

Commissioning/service reports

Hydraulic parameter report................................................................................... 138

Control parameters report.................................................................................... 138

Specification....................................................................................................... 144

Appendix

Heat pump commissioning order.......................................................................... 147

Index

5692 875 GB

Certificates

Declaration of conformity...................................................................................... 148

Keyword index.................................................................................................... 149

Index

Index (cont.)

5692 875 GB

Type AWCI-M-AC 301.A

Reversible air/water heat pump with inte-

gral circulation pump (secondary pump),

3-way diverter valve and safety assem-

bly.

Type AWO-M-AC 301.A

Air/water heat pump without integral cir-

culation pump (secondary pump) or 3-

way diverter valve. A secondary pump

assembly (secondary pump and circula-

tion pump for cylinder heating) is availa-

ble as an accessory.

The 4 red cores in the heat pump control

unit must be removed for the external

circulation pumps to be connected (see

page 75).

General information - electrical connection

■Connecting cables from control

panel – heat pump control unit:

Observe information from page 63.

■Electrical connection of system

components (pumps, mixers, valves,

alarm facilities, contactors, function

extensions, sensors, etc.):

These connections are made inside

the heat pump control unit. Observe

information from page 71.

■Power supply:

The number of power cables from the

distribution board (meter box) to the

heat pump control unit and to the con-

trol panel depends on the system ver-

sion and tariffs used.

These connections are made inside

the heat pump control panel. Observe

information from page 97.

Preparing for installation

Product information

5692 875 GB

Installation room requirements

!Please note

Incorrect ambient conditions can

lead to system damage and can

put safe operation at risk.

■ The installation room must be

dry and free from the risk of

frost.

Ensure ambient temperatures

are higher than 0 °C and lower

than 35 ºC.

■ Prevent air contamination by

halogenated hydrocarbons

(e.g. as contained in paints,

solvents or cleaning fluids) and

excessive dust (e.g. through

grinding/polishing work).

■ Avoid continuously high humid-

ity levels (e.g. through frequent

drying of washing).

Note

Cool vapour is expelled from the air duct

on the discharge side during defrosting.

Take this into account when siting the

appliance (selecting the installation

room, determining the intake and dis-

charge sides).

!Please note

Overloading the floor can result in

building damage.

Observe the permissible floor

load.

■ Total weight type AWCI-M-AC 301.A:

289 kg

■ To prevent structure-borne noise,

never site the appliance on ceilings

with wooden joists (e.g. in the attic).

■ Observe minimum clearances.

■ Level the appliance horizontally.

■ Required room height at least 2.10 m.

■ Observe the minimum room volume

required to EN 378 of 16.5 m3.

Preparing for installation

Internal heat pump, type AWCI-M-AC 301.A

5692 875 GB

Installation

Siting

Minimum clearances and dimensions for installation in corners

A B

532

1330

830

990

880

1330

935

522

Discharge side on the left (delivered condition); hydraulic connections on the right

(on site)

AWall outlet, discharge side

BWall outlet, intake side

CPlaster finish

DTop edge, finished floor level

Preparing for installation

Internal heat pump, type AWCI-M-AC 301.A (cont.)

5692 875 GB

CDE

= 700

810

118

522

845

532

127

117

810

686

379

Discharge side on the left (delivered condition); hydraulic connections on the right

(on site)

AExternal render

BWall

CWall outlet (EPP, can be trimmed to

the correct size from the outside

with a saw. Observe plaster thick-

ness)

DCompression sealing strip and

acrylic airtight seam (all-round)

EPU foam (all-round)

FPlaster finish/wall coating

GHydraulic connections and conden-

sate drain hose

Preparing for installation

Internal heat pump, type AWCI-M-AC 301.A (cont.)

5692 875 GB

Installation

Minimum clearances and dimensions for installation against the wall

966

885

= 8 x 350

= 1 x 350

686

990

845

835

880

830

810

350

Discharge side on the left (delivered condition); hydraulic connections on the right

(on site)

AWall outlet on the discharge side

(made of EPP)

BWeather grille

CPartition (if required), see table

below

DWall outlet on the intake side (made

of EPP)

EAppliance connector, air duct,

intake side (made of EPP)

FHeat pump

GAppliance connector, air duct, dis-

charge side (made of EPP)

HStraight wall outlets as air ducts

(made of EPP)

K90° bend (made of EPP)

X Clearance of wall outlets

Preparing for installation

Internal heat pump, type AWCI-M-AC 301.A (cont.)

5692 875 GB

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