Installation Room Requirements - Viessmann BW 35 .AHT PW Series Installation And Service Instructions Manual

Transport and siting requirements
Note
Transport by forklift truck is only permitted without the
side, front and back panels fitted.

Installation room requirements

!
Please note
Unfavourable ambient conditions can lead to
malfunctions and appliance damage.
The installation room must be dry and free
■
from the risk of frost.
■ Ensure ambient temperatures between 0 and
28 °C.
Danger
Dust, gases and vapours can be damaging to
health and trigger explosions.
Avoid dust, gases and vapours in the installation
room.
!
Please note
Overloading the floor can result in damage to
the building structure.
Observe the permissible floor load. Take the
weight of the appliance into account.
Weight
Type
BW 352.AHT058
BW 352.AHT071
BW 352.AHT084
BW 352.AHT096
BW 352.AHT119
BW 353.AHT126
BW 353.AHT147
R1234ze refrigerant
The refrigerant R1234ze is considered to have low
flammability. It is a refrigerant with safety class A2L.
We recommend ventilating the installation room and
the machine casing, routing the extract air outside and
providing a refrigerant sensor to monitor refrigerant
leaks.
Service and repair work must only be carried out by
trained personnel with the relevant skills.
Or to EN 60335-2-40:
Anyone working on the refrigerant circuit must prove
their competence in the safe handling of refrigerants
by means of a procedure known in the industry. They
must be able to produce a certificate of competence
issued by an organisation with industry accreditation.
(cont.)
Weight in kg
1077
1195
1251
1357
1426
1779
1865
■ To prevent the transmission of structure-borne noise,
never site the appliance above ceilings with wooden
joists (e.g. in the attic).
Level the appliance horizontally.
■
Where floors are uneven, distribute the load evenly
across the feet.
■ Observe minimum room volume (to EN 378).
Note
Additional, country-specific regulations apply.
Minimum room volume, based on the available
air volume
Type
BW 352.AHT058
BW 352.AHT071
BW 352.AHT084
BW 352.AHT096
BW 352.AHT119
BW 353.AHT126
BW 353.AHT147
■ Observe the floor area and minimum clearances
(see following chapter).
Service work may only be carried out in accordance
with the manufacturer's specifications. If maintenance
and repair work require assistance from additional indi-
viduals, the trained person should constantly supervise
the work.
Allocation of refrigerant
Refrigerant safety class to ISO 817
Fluid group to PED 2014/68/EU dated
15/05/2014
R1234ze is not a hazardous substance according to
EC directive 67/548/EEC or 1999/45/EC.
Preparing for installation
Minimum room volume
3
in m
1115
A2L
Group 2
369
492
591
689
812
935
13