RHOSS TCAEY-THAEY 115 P1 Instrucciones De Uso página 25

II SECTION II: INSTALLATION AND
MAINTENANCE
II.1 UNIT DESCRIPTION
II.1.1 CONSTRUCTION FEATURES
○ Load-bearing structure and panels in galvanised and painted sheet
steel; base in galvanised sheet steel.
○ Hermetic rotary Scroll compressor complete with internal thermal
protection and crankcase heater (for models 127÷133).
○ Water side, braze welded plate heat exchanger in stainless steel,
complete with antifreeze electric heater and suitably insulated.
○ Air side heat exchanger comprised of a coil of copper pipes and
aluminium fins.
○ Double electric axial fan with external rotor, equipped with internal
thermal protection and complete with protection grille for models
115÷130 and individual fan for model 133.
○ Male threaded water connections.
○ Differential pressure switch that protects the unit from any
interruptions to the water flow.
○ Refrigerant circuit made from annealed copper piping (EN 12735-1-
2) complete with: drier filter, charge connections, safety pressure switch
on the high pressure side, pressure switch on the low pressure side,
safety valve (for models 127÷133), thermostatic expansion valve (x 2
for THAEY, 3 for models 133-233), cycle inversion valve (for THAEY),
liquid receiver (for THAEY) and check valves (x 2 for THAEY), and gas
separator (for model 133).
○ Unit with IP24 level of protection.
○ Unit with AdaptiveFunction ;
○ The unit is complete with the R410A refrigerant charge.
II.1.2 AVAILABLE INSTALLATIONS
Standard - Installation without pump (only available for model 133).
Pump P1 – Installation with pump.
Pump P2 – Installation with high static pressure pump for models 133 –
233 (available as a factory fitted accessory).
Tank & Pump ASP1 – Installation with pump and water buffer tank.
The inertial water buffer tank is installed on the water circuit delivery
pipe.
Tank & Pump ASP2 – Installation with high static pressure pump and
storage pump for model 133 (available as a factory fitted accessory).
The inertial water buffer tank is installed on the water circuit delivery
pipe.
II.2 ELECTRICAL BOARD
○ Electrical board accessible by opening the front panel, conforming
with current IEC standards, and which can be opened and closed with a
suitable tool.
○ Complete with:
• electrical wiring arranged for power supply 400-3ph+N-50Hz;
• auxiliary power supply 230V-1ph-50Hz drawn from the main power
supply;
• general isolator, complete with door interlocking isolator;
• automatic compressor protection switch;
• protection fuse for auxiliary circuit;
• compressor power contactor;
• anti-disturbance network filter;
• compressor protection phase sequence monitor;
• unit protection against lack of a power supply phase;
• transformer for electronic control;
• user interface terminal board;
• unit remote controls.
○ Programmable electronic board with microprocessor, controlled by
the keypad inserted in the machine.
○ This electronic board performs the following functions:
• Regulation and management of the inlet water temperature set
points; of cycle reversal (THAEY); of the safety timer delays; of the
circulating pump; of the compressor and system pump hour-run meter;
of the defrosting cycles (THAEY) at a certain temperature; of the
electronic anti-freeze protection which cuts in automatically when the
machine is switched off; and of the functions which control the operation
of the individual parts making up the machine;
SECTION II: INSTALLATION AND MAINTENANCE
• complete protection of the unit, automatic emergency shutdown and
display of the alarms which have been activated;
• visual indication of the programmed set points via the display; of the
in/out water temperature via the display; of the alarms via the display;
and of cooling/heat-pump operation via LEDs (THAEY);
• self-diagnosis with continuous monitoring of the functioning of the
unit;
• user interface menu;
•
alarm code and description;
○ Advanced functions:
• set up for serial connection (KIS and KCH accessory);
• check-up and monitoring of scheduled maintenance status;
• testing of the units assisted by computer;
• self-diagnosis with continuous monitoring of the functioning of the
unit;
• function Adaptive Function .
II.2.1.1 AdaptiveFunction
The AdaptiveFunction makes it possible to adapt the chiller/heat pump's
operating parameters to the load conditions of the system in which it is
installed, optimising consumption, efficiency and the useful life span of
the components.
II.3 SPARE PARTS AND ACCESSORIES
IMPORTANT!
Only use original spare parts and accessories.
RHOSS
S.p.A. shall not be held liable for damage
caused by tampering or work carried out by
unauthorised personnel or malfunctions caused by
the use of non-original spare parts or accessories.
II.3.1 FACTORY FITTED ACCESSORIES
P2 – Installation with high static pressure pump (available for model
133).
ASP2 – Installation with high static pressure pump and water buffer
tank (only available for models 133 and 233).
RAA – water buffer tank antifreeze electric heater (available for
installations ASP1 – ASP2).
RPB – Coil protection networks.
RCC – Compressor crankcase heater (for models 115÷124).
TRD – Thermostat with desuperheater (DS15-DS151) and recovery unit
(RC100-RC100 1) inlet water temperature display, with possibility to set
the activation set-point of an external regulation device (if present).
FI10 1 - Proportional electronic device for the pressurised and
continuous regulation of the fan rotation speed down to an external air
temperature of -10°C when operating as a chiller and up to an external
air temperature of 30°C when operating as a heat pump.
DS15 1 – Desuperheater complete with antifreeze electric heater and
condensation control (FI10 1) (for model 133).
RC100 1 – Heat recovery unit with 100% recovery, complete with
antifreeze electronic heater and condensation control (FI10 1) (for
model 133).
II.3.2 ACCESSORIES SUPPLIED LOOSE
KSA – Anti-vibration supports.
KTR1 - Remote keypad for remote control, with the same functions as
the one built into the unit.
KFI1 - Proportional electronic device for the pressurised and continuous
regulation of the fan rotation speed down to an external air temperature
of -10°C when operating as a chiller and up to an external air
temperature of 30°C when operating as a heat pump.
KIS – RS485 serial interface for logical dialogue with building
automation and supervision systems (supported protocols: proprietary
®
protocol; ModBus RTU).
KCH – RS232 hardware key for connection to supervision systems, to
be associated with one or more KIS serial interface modules in the case
of centralised unit management (200 units can be connected at a
distance of up to 1,000 m).
Description and fitting instructions are supplied with each
accessory.
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