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CHAPTER 4 - FUNCTIONING
4.1
PRODUCT DESCRIPTION
The system is comprised of an "in-line" electrical pump or circulator, a CPS electronic control system
(inverter) and a pressure system to check differential pressure provided by the pump.
The pumps are typically employed as circulation pumps for heating and/or air conditioning systems (R2TE-
R4TE) or for heating (R2CE) only with variable loads.
The head or frequency required can be set using the control panel, with a choice between three different
settings: proportional pressure, constant pressure or constant frequency.
The pump has:
x
inlets with external contacts without voltage for starting-up/stopping and commutation with the
second set point;
x
with external contracts with voltage for the potentiometer or temperature probe;
x
outlet without voltage for the fault signal;
x
RS458 port to communicate with another twin pump control system.
4.2
FUNCTIONS
"In-line" R2TE-R4TE pumps and R2CE circulators can be set in the manner which best suits each type of
system.
4.2.1 SETTINGS
The pump can be set for two primary controlled functioning modes:
x
with proportional differential pressure (dP-v);
x
with proportional differential pressure (dP-c);
as well as a non-controlled functioning mode with a constant curve (Frq).
Constant pressure
dP-c
Constant differential pressure dP-c setting.
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Proportional pressure
dP-v
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Constant curve
Frq
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