General; Installation - Biral HP-E Instructions D'installation Et D'entretien

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3. General

Biral HP-E/HPC-E pumps are identical to HP/HPC pumps,
except that their motors are equipped with an integrated
frequency converter that is connected to single-phase
or three-phase power networks.
The operating instructions for the HP/HPC pumps
08 0061.2130 are an integral component of the delivery
package.
The technical data, and installation and general instruc-
tions, are also valid for HP-E/HPC-E pumps, unless other-
wise specifically indicated in this operating instruction
manual.
Pumps without factory-fitted sensor:
The pumps have a built-in PI controller and can be
connected to an external sensor enabling control of for
instance pressure, differential pressure, temperature,
differential temperature or flow in the system in which
the pumps are installed.
The pumps have been set to controlled operation, i.e. the
pump performance can be set according to the demand.
Pumps with differential pressure sensor:
The pumps incorporate a PI controller and a differential
pressure sensor enabling control of the pump discharge
pressure.
The pumps can be set to regulated- or unregulated-
operation mode.
The pumps are typically used as pressure booster
pumps in systems with variable demands.
The desired setpoint can be set directly on the pump
control panel or via an input for external setpoint signal.
The pump incorporates
– inputs for external potential-free contacts for start/stop
and digital function.
The digital function enables external setting of max.
curve, min. curve, external fault function or flow
switch.
– an output for a potential-free fault, operating or ready
signal.
– an input for bus communication.
Via the bus communication input, the pump can be
controlled and monitored by a building management
system or another external control system.

4. Installation

The following points must be observed to ensure
adequate cooling of the motor and electronics:
– The pump must be fitted to ensure sufficient cooling.
– The temperature of the cooling air must not exceed
40°C.
– The cooling fins and fan blades must be kept clean.
Motors operated out of doors must have suitable
screening to prevent formation of condensation on
electronic equipment, fig. 1.
Fig. 1:
Examples of covers
For further installation, see installation and operating
instructions for the standard pump.
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