TECHNOALPIN

MACHINE ROOM

english

The machine room is the beating heart of the snow-making system and therefore has

the highest requirements in terms of operational reliability and occupational safety. Accord-

ingly, TechnoAlpin places great importance on the highest standards for all components and

finished work.

PASSIONFOR SNOWMAKING

RT Ventilation monitor and siren for remote start warning

FE Flow meter PT Pressure transmitter with display and TT Water temperature sensor

FSL Flow transmitter andPV Pneumatic valve governingminimum quantity of each pump

Emergency stop buttonfor safety cut-out

F Automatic fl ushing fi lter PI Pressure gauge

PCV Adjustable valve for pressure re-gulation and various boundary controls

TSH Pump body temperaturemonitoring

V Gate valve for servicing purposes

Perfectly coordinated components

TechnoAlpin's pumping stations are state of the art right down to the smallest detail. Safety and user-

friendliness all in one! Whether it’s sensors, valves, fi lters or other components, each part contributes to

the effi cient operation of the entire system.

Pipe-break valve,closed in the event of a fault

WA Water alarm as protection against fl ooding

Pipe clamps

PT Pressure transmitter with display PSL Pressure switch as protection against dry running

Vent valve

Design

Detailed 3D piping diagrams are drawn up to increase effi ciency during system planning and design.

PLC TechnoAlpin machine rooms are controlled from a central PLC unit. This guarantees that the lines

are filled correctly and that the system only goes into regular operation when the lines are full. This proce-

dure protects the lines from pressure surges and trapped air. The system is controlled using a touch screen

that also displays the settings. The menu structure is very clear. The operator can select from a range of

different languages. The PLC continuously exchanges data with the control system.

Safety and handling

Current and input pressure limiting Current and input pressure limits have to be

set during the commissioning of each pumping station. TechnoAlpin pumping stations have two current

settings. If the fi rst setting is exceeded, neither the regulation valve nor the pump speed are increased any

further. Once the limit of setting 2 is reached, the regulation valve is gradually closed and the pump speed

reduced. Limiting the input pressure guarantees a minimum pressure and prevents the pumps coming

to an emergency stop. Irreparable damage can occur within seconds if a pump is running at less than the

specifi ed water pressure or, worse, is running dry.

Current limiting Input pressure limiting

Leak monitoring The pressure and flow rate in the operating system are monitored continuously

in order to immediately detect any leaks in the line. When the system shuts down, the PLC saves the

current output pressure. The PLC triggers an alarm if the pressure drops below a preset value for no ap-

parent reason. Drainage measurement Water losses from the reservoirs are also monitored

in order to pinpoint where the losses are occurring. For this purpose, water from the drainage system is

piped into a small collecting tank where it is directed over a V-notch weir. The level of water at the weir is

measured and the current water flow calculated using a level sensor.

Safety and handling

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Pump protection Each high-pressure pump has 4 standard safety features to protect the pump

from defects: 1 Minimum flow detection 2 Temperature monitoring (TSH) 3 Dry running protec-

tion (PSL) 4 Current monitoring

Safety and handling

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5 Electrically interlocked safety circuits and emergency manual operation All safety circuits are

interlocked electrically, not just by the software. The emergency stop circuit is rated according to ISO

1348-1. If there is a power failure or a fault, all relevant parts are left without power either open or closed,

depending on the specifi cation. This ensures the safety of the system and employees in all cases. The sys-

tem can be operated manually in an emergency if the automatic controls fail. 6 Problem resolution In the

event of a breakdown, TechnoAlpin systems generate fault lists that are standardized between the control

system, PLC and the manual. This makes it easy to identify the fault and fi x it. The system differentiates

between faults and warnings.

Safety and handling

List of faults Troubleshooting

Highest standardsfor welding and material testing

ISO 3834-2 TechnoAlpin is certifi ed according to ISO

standard 3834-2 which specifi es the quality of the welding pro-

cess of metallic material. The quality of the welding process is

diffi cult to check. It cannot be fully checked on the product but

has to be “designed into” the process. That is why TechnoAlpin

complies with ISO 3834-2, which defi nes the “Quality require-

ments for fusion welding of metallic materials”.

The main objectives of this standard are:

• to defi ne the quality requirements for welding in the workshop

and at construction sites

• to ensure the conformity of fi nished products with the specifi ed

quality requirements

• to guarantee adequate control of the welding process in order to

ensure the consistently high quality of the fi nished work

• to form a basis for evaluating the skills and capabilities of suppli-

ers and employees.

The standard is therefore an important means of defi ning top quality for all welding work and guaranteeing

the safety of the system. TechnoAlpin welders conform strictly to the specifi cations for the confi guration

of the joint during welding. The appropriate angulation of the contact points and adherence to the welding

sequence are essential for our technicians.

X-ray inspection TechnoAlpin employees carry out X-ray inspections of weld beads in order to

monitor the quality of the fi nished work.

Material certifi cate At the same time, TechnoAlpin maintains above-average standards when

it comes to certifi cation of the materials supplied. Materials are checked for acceptance test certifi cation

according to EN 10204 / 3.1, including the detailed inspection of incoming goods, a chemical analysis and

the mechanical testing of all components.

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1 Frequency converter (FU) with graphic display The pumps are controlled using a frequency con-

verter which continuously adjusts the speed of the pump motor and therefore the output pressure. The FU

monitors the pump current and the temperature of the motor. The continuous adjustment guarantees ex-

tremely efficient operation of the system. 2 Regulation valve (PCV) The PCV is used without the frequency

converter to regulate the output pressure and control the pumps. This mechanism features two limit switch-

es for the "OPEN" and "CLOSED" positions, safety switches that react to excessive torque and an internal

thermal cut-out. The regulation valve was developed specially by TechnoAlpin and is very easy to service.

High-quality components

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3 Flushing filter This filter has an automatic flushing function to prevent it from clogging and avoid pres-

sure loss. 4 Sensors with displays A wide range of sensors and probes are needed to read the measured

data from the entire system. The sensors in TechnoAlpin systems have separate displays that enable the

system to be monitored at a glance. 5 Control via Ethernet Frequency converters and compressors can

be controlled via an Ethernet interface. Commissioning and troubleshooting are greatly simplified thanks

to uncomplicated wiring. The control system displays individual faults and not only group faults. This saves

money and allows for remote monitoring.

High-quality components

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High-quality components

UV system Electric cabinets

Equipotential bonding Plug distributor

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Electromechanical components TechnoAlpin insists on top quality from its suppliers

as well. Internal quality checks ensure that high quality standards are maintained for all components. For

that reason, TechnoAlpin relies on long-term partnerships with leading suppliers such as Eaton, Siemens,

ABB, Rittal, Schneider Electric, etc.

High-quality components

Main switch Electric cabinet open

Disconnect terminal blocks Temperature displays

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