General Information; Safety - Wilo BAC 40/129 Serie Instrucciones De Instalación Y Funcionamiento

1 General information

Installation and service by qualified personnel only!
1.1. Uses
Dry-running pumps of the BAC (block type) series are used to
pump cold water without suspended matter and water/glycol
mixtures containing up to 35% glycol, in cooling-water circuits
(cooling towers and cold-water assemblies).
1.2 Product data
1.2.1 Rating plate
Block pump Air Conditioning
Nominal diameter of
pressure joint [mm]
Impeller diameter [mm]
Nominal power P2 [kW]
Motor: 2-pole
Pipe connection S = Thread
R = Victaulic
BAC
Nominal power P2
[kW]
[mm]
40/129... 0,75
40/136... 1,1
40/128... 1,5
40/134... 1,85
All rating plate data is to be specified when ordering spare parts.

2 Safety

These instructions contain important information which must
be followed when installing and operating the pump. These
operating instructions must therefore be read before assembly
and commissioning by the installer and the responsible
operator. Both the general safety instructions in the „Safety
precautions" section and those in subsequent sections
indicated by danger symbols should be carefully observed.
2.1 Danger symbols used in these operating instructions
Safety precautions in these operating instructions which, if not
followed, could cause personal injury are indicated by the
symbol:
when warning of electrical voltage with
The following symbol is used to indicate that by ignoring the
relevant safety instructions, damage could be caused to the
pump/machinery and its functions:
ATTENTION!
2.2 Staff training
The installation staff must be suitably qualified for this work.
2.3 Risks incurred by failure to comply with the safety
precautions
Failure to comply with the safety precautions could result in
personal injury or damage to the pump or installation. Failure
BAC 40 / 129- 0,75 / 2- S
H H1
280 235
280 235
280 246
280 246
,
1.2.2 Technical characteristics
– Max. operating pressure:
– Max. inlet pressure (inlet side):
– Permissible media temperature:
– Permissible ambient temperature: 0°C to +40 °C
– Permissible humidity:
– Flow media:
cooling circuits to VDI 2035:
Max. 65 % / 35 % (monoethylene, ethylene)
– Permissible chloride content:
– Viscosity:
– pH values:
– Permissible solid grain size in medium:
When pumping viscous fluids (e.g. water/glycol mixtures)
adjust the pump data to allow for the higher viscosity.
Only use branded glycol mixtures with corrosion inhibitors
and follow the manufacturers instructions.
If other and also aggressive chemical fluids are to be pum-
ped, be sure to follow catalogue instructions and first obtain
the approval of Wilo.
Dimensions see table and dimensional diagram 1.
H2 L
[mm]
130 347
130 347
130 356
130 356
to comply with the safety precautions could also invalidate any
claim for damages.
In particular, lack of care may lead to problems such as:
n Failure of important pump or machinery functions,
n Risk of personal injury from electrical and mechanical
influences,
n Damage to property.
2.4 Safety precautions for the operator
Existing regulations for the prevention of accidents must be
followed.
Dangers caused by electrical energy are to be excluded.
Directives issued by the VDE [German Association of Electrical
Engineers] and the local electricity supply companies are to be
observed.
2.5 Safety information for inspection and assembly
The operator must ensure that all inspection and installation
work is carried out by authorised and qualified specialists who
have carefully studied these instructions.
Work on the pump/machinery should only be carried out when
the machine has been brought to a standstill.
2.6 Unauthorised modification and manufacture of spare
parts
Alterations to the pump or installation may only be carried out
with the manufacturer's consent. The use of original spare
parts and accessories authorised by the manufacturer will
ensure safety. The use of any other parts may invalidate claims
invoking the liability of the manufacturer for any consequen-
ces.
2.7 Unauthorised operating methods
The operating safety of the pump or installation supplied can
only be guaranteed if it is used in accordance with paragraph
ENGLISH
6.5 bar
4 bar
-15 °C to +60 °C
Max. 95 %
Water/glycol mixtures in
Cl <150 mg/l
1 cSt to 50 cSt
6 to 8
Max. l 0.5mm
L1
Cable gland
PG
216 11
216 11
225 13,5
225 13,5
7