Riello VegA RMXA 25-40, Руководство по установке

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13
ENGLISH
In the operating mode, the current power consumption in W is displayed.
When the knob is turned, the LED display shows the delivery head in “m”
or the speed stage.
CONTROL MODES
Variable differential pressure ( Δ p-v):
The H value set for the pressure differential is increased linearly between 1/2 H and H.
Beyond the
fl ow rate range allowed ( fi g 2a) the pressure differential generated by the
circulation pump is regulated according to the respective value set.
3 speed stages
The pump runs uncontrolled in three prescribed
fi xed speed stages. (Fig. 2b).
INSTALLATION AND ELECTRICAL CONNECTION
INSTALLATION
DANGER: Before starting work, make sure that
the pump has been disconnected from the po-
wer supply.
Installation site
• Provide a weatherproof, frost-free, dust-free and well-
ventilated room for the installation.
Choose an installation site that is easily accessible.
• Prepare the installation site so that the pump can be
installed without being exposed to mechanical stresses.
If need be, support or secure piping on both side of the
pump.
NOTE : Provide check valves upstream and down-
stream of the pump to facilitate a possible pump
replacement. Perform installation so that leaking
water cannot drip onto the control module. To do
this, align the upper gate valve laterally, if need be.
• Complete all welding and soldering work near the pump
prior to the installation of the pump.
CAUTION: Dirt can cause pump failure. Flush
the pipe system before installation.
• Choose the correct installation position with horizontal
pump motor - only as shown in (Fig. 3). Direction arrows
on the pump housing and, where applicable, the insula-
tion shell indicate the direction of fl ow.
• If heat insulation work is necessary, only the pump hou-
sing may be insulated. The pump motor, module and
the condensate drain openings must remain uncovered.
Turn motor head
If the installation position of the module is changed, the
motor housing has to be turned as follows:
• If need be, lever up the thermal insulation shell with a
screwdriver and remove it
• Loosen the internal hexagon screws
• Turn the motor housing, including control module
NOTE : Generally turn the motor head before the
system is fi lled. When turning the motor head in
an installation which is already fi lled, do not pull
the motor head out of the pump housing. Turn the
motor head with a small amount of pressure on the
motor unit so that no water can come out of the
pump.
CAUTION: Do not damage the housing seal.
Replace damaged seals.
• Turn the motor head in such a way that the plug corre-
sponds to the permitted installation position (Fig. 3).
CAUTION: If the position is wrong, water can
penetrate and destroy the pump.
• Turn in the internal hexagon screws
• Re-mount the thermal insulation shell, if applicable
ELECTRICAL CONNECTION
DANGER: Work on the electrical connection
may only be performed by a quali
fi ed electri-
cian in accordance with national and local regu-
lations.
Before establishing the connection, make sure
that the connecting cable is dead.
• Mains voltage and current type have to correspond to
the rating plate speci fi cations.
• Connect the plug (Fig. 4a to 4e).
• Mains connection: L, N, PE.
• Max. back-up fuse:10 A, slow.
condensate drain openings,
presents on every side of
the circulator