37
HYDROCIA
T L
W
HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 18.752 B
Water chillers
Heat pump
■
Condenser
A single condenser with copper tube bundle with internal and
external grooves
The design includes 1 or 2 independent cooling circuits in addition
to the oil separator
Two entering and leaving water temperature sensors on the
exchanger are used to regulate the 'return water' or 'leaving wat
er'.
The heat insulation is made from shaped cellular foam,
at least
19 mm thick (optional)
The hydraulic unions will be
"VICTAULIC"
-type unions to ensure
quick connection between the unit and hydraulic system.
The maximum operating pressure on the water side is
10 bar (21
bar as an option)
Several choices of hydraulic connections will be available
on the evaporator to adapt to all possible constraints (see
options available)
● Condenser flexible sleeves (option)
The manufacturer will supply flexible connection sleeves to
insulate the unit and limit the transmission of vibrations to the
hydraulic network.
● Condenser thermal insulation (option)
To minimise heat losses, the condenser will be equipped with
insulation made from 19-mm-thick shaped cellular foam. This
option will be included as standard for heat pump applications
■
Refrigerating components - Safety devices
Each cooling circuit will include the following accessories as a
minimum:
- One electronic expansion valve
- An economiser function (HE version) comprising a brazed plate
heat exchanger and supplied with refrigerant by an
electronic
expansion valve
- One liquid sight glass to show the refrigerant condition
- One filter drier with refillable cartridge
- High and low pressure sensors
- Relief valves
- Evaporator antifreeze protection sensor
- Factory-fitted electronic water flow controller
■
Electrical cabinet
The electrical cabinet is made from painted steel sheet metal with
an
IP23 protection
rating
The power supply is 400 V (+10/-10%) 3-ph 50 Hz + earth without
neutral.
The electrical cabinet includes a main external safety switch and
a 24-V control circuit supply transformer
The internal wiring of the electrical panel is numbered and all the
electrical components are marked.
●
Pump power/control circuit (option)
The unit is equipped with a control/power supply circuit to
control one external single or dual pump on the evaporator
side and/or one single pump on the condenser side
■
Connect Touch electronic control, regulation
and display module
The control module features a 5-inch (or optional 7-inch)
touchscreen with a user-friendly operator interface enabling
intuitive navigation using icons.
User interface
- 5-inch (optional 7-inch) colour screen
- Display of all machine parameters (3 access levels, User/
Maintenance/Factory, password-protected)
- Display of trend curves for main values
- 8 languages available
- Possibility to load a custom translation file
- Access to the interface through the web browser
Control
This performs the following functions:
- Regulation of the water temperature (at the return or at the
outlet)
- Option of varying the setpoint according to the outdoor
temperature
- Regulation for optimised energy storage with the CRISTOPIA
installation
- Second setpoint management
- Management of compressors with start-up sequence, metering
and operating time balancing
- Self-regulating and proactive functions with adjustment of drift
control for parameters
- Management of compressor short cycle protection
- Protection against phase inversion
- Weekly and hourly time schedule for the machine, including 16
periods of absence
- Condensing pressure limitation (option)
- Diagnosis of fault and operating statuses
- Management of a fault memory allowing a log of the last 50
incidents to be accessed, with operating readings taken when
the fault occurs
- blackbox memory
- Master/slave management of the two machines in parallel with
operating time balancing and automatic changeover if a fault
occurs on one machine
- The maintenance manual, wiring diagram
and list of spare
parts for the machine are available in electronic format
Maintenance function
The controller will have two maintenance reminder functions
as standard, making the user aware of the need to regularly
perform maintenance operations and to guarantee the service
life and performance of the machine
- Periodic reminder:
this function is used to select the period
between two maintenance checks. This period may be set by the
operator in either days, months or operating hours, depending on
the application
-
Mandatory F-GAS sealing test reminder:
this function is activated
by default in the factory and is used to select the period between
two sealing tests depending on the refrigerant charge of the
machine in accordance with F-GAS regulations
Remote control
- Communication with BMS via RS485 MODBUS/JBS or TC/IP
output as standard.
- Control via built-in web server to remotely access all HMI
functions via a PC with alarm notification via email alerts
● Communication gateway for other protocols (option)
LON communication gateway
Factory-fitted bi-directional communication board enabling
the machine to be connected via communication bus to a
centralised LonWorks management system.
BACnet/IP communication gateway
Factory-fitted bi-directional communication using the BACnet
over Ethernet IP network protocol. This option is used to
integrate the machine into a BACnet IP centralised building
management system.
Summary of Contents for HYDROCIAT LW HE Series
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