Wilo Atmos TERA SCH 150-230, Инструкция по установке и эксплуатации

Страница: 57 / 100

Product description zh-CHS
安装及操作说明 Wilo-Atmos TERA-SCH 57
Wilo control devices allow
ƒ
Optimisation of the pump output for the demands of the installation
ƒ
Particularly economically efficient pump operation
4.1.1 Hydraulics
The pump consists of axially divided spiral housing (with replaceable wear rings) and
cast-on pump support feet. The impeller is a double suction closed radial impeller. The
high head hydraulic presents a double volute design to minimise the radial forces on the
shaft assembly. The pump shaft bearings are greased for life lubricated radial ball
bearings.
4.1.2 Motor
The system is driven by IEC standard motors in a three-phase current version.
注意
Use a heat-resistant mains connecting cable in systems where fluid temperatures
exceed 90 °C!
4.1.3 Seal
The fluid pump is sealed via mechanical seals in accordance with EN 12756 or by
stuffing box packings.
4.2 Operation with frequency
converter
Operation on the frequency converter is permitted. Refer to the documentation from
the motor manufacturer for the relevant requirements and observe its contents.
4.3 Type key
Example: Wilo-Atmos TERA-SCH 250/360-75/4-L1
Atmos
Product family
TERA
Series
SCH
Construction (splitcase pump, horizontal)
250
Nominal diameter DN of pressure port
360
Nominal diameter of the impeller in mm
75
Rated motor power P
2
in kW
4
Number of poles
L1
Material configuration : Bronze impeller
4.4 Technical data
General
Date of manufacture [MFY]
See rating plate
Mains connection [U/f]
See motor rating plate
Power consumption [P
1
]
See motor rating plate
Rated power [P
2
]
See motor rating plate
Rated speed [n]
See rating plate
Max. delivery head [H]
See rating plate
Max. volume flow [Q]
See rating plate
Permissible fluid temperature [t]
-20 °C to +100 °C
Permissible ambient temperature
[t] +40 °C
Permissible operating pressure
[P
max
]
10/16 bar (depending on type)
Flanges
PN 16 in accordance with EN 1092-2
Permissible fluids
– Heating water in accordance with VDI 2035
– Cooling/cold water
– Water-glycol mixture up to 40 % vol.
– Raw water
Protection class
IP55