Grundfos PHP A-1 4.0, Инструкция по эксплуатации

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PHP A-1 Instruction Manual / General
1 General
1.1 Tender text
Modular PHP for lossless storage of the expansion volume
and for pressure maintenance in closed heating, climate
and cooling systems. Designed and manufactured acc. to
regulations of EN 12828 and SWKI 93-1.
The control unit is built very compact with two low-noise
pressure maintenance pump(s) which is executed ad
multistage centrifugal pump(s) with high quality floating-
ring type shaft seal. Also the PHP hydraulics includes one
continuously regulating, mechanically set overflow valve.
High-precision measuring of the plant pressure. Hydraulic
connections and necessary shut-off devices for on-site
piping are factory-provided on the right side of the control
unit (possibility for rebuilding to the left side of the control
unit). Temperature monitoring of the media streaming into
the vessel. Prepared connection point for mounting a make-
up module for accurate measuring Combinable with water
softening for standardised make-up water (if required).
All operations are controlled by the microprocessor
electronics. The operator panel is situated ergonomically and
contains an illuminated 4-line text display. The measure- and
control unit is executed in a closed electrical cabinet. Four
potential-free signalling contacts (fault, warning, makeup in
operation, device operation enabled).
For more signals two additional modules can be installed
easily in prepared mounting positions. Remote monitoring
can be done also via SMS-module, bus module or web module.
PHP series devices are equipped by default with integrated
economic low-pressure degassing, based on the principle
of pressure drop. External temperature monitoring via an
optional temperature sensor at the connection point is
prepared too.
PHP unit includes a CAT Break Tank with 2 x Pumps.
Modular PHP:
The PHP device is a nicely shaped,
self-contained unit with a pleasing design. It is designed for
a modular combination with external expansion vessels
(max. 0.5 bar). The connections for suction pipe and
overflow pipe are situated at the back of the device.
Max. operation temperature of the plant: 110 °C
(with cooling vessel)
Max. temperature at the connection point: 70 °C
Max. operating pressure (PN): 10 bar
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