English
40
WILO SE 05/2011
• Install appropriate flat gaskets between pump and counter flanges.
• Tighten the flange bolts across diagonals in two steps to the prescribed tight-
ening torque (see Table 7.1.2).
• Step 1: 0.5 x permissible tightening torque
• Step 2: 1.0 x permissible tightening torque
• Check the flange connections for leaks.
• Single-head pump:
Fit the two half-shells of the thermal insulation before commissioning and push
them together so that the guide pins engage in the opposing holes.
7.1.3 Insulation of the pump in refrigeration/air-conditioning systems
• The series TOP-S/-SD/-RL are suitable for use in refrigeration and air-condi-
tioning systems with temperatures of the fluid down to -20 °C.
• The thermal insulation shells included in the scope of delivery of the individual
pumps may however only be used in heating systems at fluid temperatures of
+20 °C or higher, since these thermal insulation shells do not enclose the pump
housing in a diffusion-proof manner.
• For applications in refrigeration and air-conditioning systems, Wilo-ClimaForm
diffusion-proof thermal insulation shells or other commercially-available diffu-
sion-proof thermal insulation materials must be used.
CAUTION! Risk of damage!
If the diffusion-proof insulation is applied by the customer, the pump hous-
ing may be insulated only up to the motor separation joint, so that the con-
densate drain openings remain open and allow the condensate accumulating
in the motor to flow out without obstruction (Fig. 7).Otherwise condensate
can accumulate in the motor, eventually causing an electrical defect.
7.2
Electrical connection
DANGER! Danger of death!
Improper electrical connections pose a risk of fatal injury due to electric
shock.
• Only allow the electrical connection to be made by an electrician approved
by the local electricity supplier and in accordance with the local regulations
in force.
• Before working on the pump, all poles of the power supply must be discon-
nected. Because voltages hazardous to persons persist for some time
(in capacitors), no work may be commenced on the module until 5 minutes
have elapsed (applies only to 1~ systems). Check to ensure all connections
(including potential-free contacts) are voltage-free.
Содержание TOP-D Series
Страница 2: ...Fig 1 Fig 2 Fig 3...
Страница 3: ...Fig 4 1 Fig 4 3 max med min 1 230V...
Страница 4: ...Fig 4 1 3 3 400 V 3 230 V 1 230 V Fig 5 Fig 6 Fig 7...
