Hitecsa EQPL-B 4360 Manual Del Operador página 56

II SECTION II :: INSTALLATION AND
MAINTENANCE
II.1 STRUCTURAL FEATURES
 Load-bearing structure and panels in galvanised and RAL 9018
painted sheet metal; galvanised steel sheet metal base.
 The structure consists of two sections:
 technical compartment that houses the compressors, the electrical
panel and the main components of the cooling circuit;
 upper aeraulic circuit dedicated to housing the heat exchanger coils
and electric fans
EQPLB-EQPLBS-EQPHB-EQPHBS RANGE
Model Compressors/Steps Circuits
4360÷4435
5500
6540÷6670
7730
8790÷8860
EQPL-EQPLBSS-EQPH-EQPHBSS RANGE
Model Compressors/Steps Circuits
4385÷4460
5525
6570÷6700
7760
8820÷8920
 Hermetic, Scroll-type rotary compressors complete with internal
circuit breaker protection and crankcase resistance automatically
activated when the unit stops (as long as the unit is powered).
 Adequately insulated, braze-welded plate water side heat exchanger
in stainless steel (tube and shell exchanger - STE option).
 Air side heat exchanger with MCHX micro-channel pipes or copper
coil pipes and aluminium fins, as indicated in the following table:
CIRCUIT 2
4360÷6670
EQPLB-EQPLBS X
EQPHB-EQPHBS -
EQPL-EQPLBSS -
EQPH-EQPHBSS -
X – MCHX micro-channel coil
 Electric helical fans with external rotor, supplied with internal circuit
breaker protection and complete with protection mesh.
 The S-Silenced versions have a proportional electronic device (FI10
option) for pressurised and continuous adjustment of the fan rotation
speed down to outdoor air temperature of -10°C when operating as a
chiller.
 The Q-Super silenced version has a standard electronic proportional
device (FI15) for pressurised and continuous adjustment of the fan
rotation speed, up to a minimum outdoor air temperature of -15°C when
operating as a chiller, and up to a maximum outdoor air temperature of
40°C when operating as a heat pump.
 The EC fan type (option FI15) is standard in the SS-Super-
Silenced versions for pressure and continuous fan rotation speed
adjustment up to an outdoor air temperature of -15°C in chiller mode
and up to an outdoor air temperature of 40°C in heat pump mode.
 Victaulic-type hydraulic connections.
 Differential pressure switch that protect the unit from any water flow
interruptions.
 Cooling circuits made with stainless steel and annealed copper
pipes (EN 12735-1-2) equipped with: dryer filter cartridge, load
connections, high pressure side manual reset safety pressure switch,
LP and HP pressure transducer, safety valve(s), tap upstream of the
filter, liquid indicator, intake line isolation, electronic expansion valve,
cycle inversion and liquid receiver valve, check valves, compressor
intake gas separator and solenoid valve on the liquid line (for EQPHB-
EQPH-EQPHBS-EQPHBSS).
 Unit with IP24 protection rating.
 Control with AdaptiveFunction Plus operation.
 The unit is complete with a charge of R410A refrigerant.
4/4 2
5/5 2
6/6 2
7/6 2
8/6 2
4/4 2
5/5 2
6/6 2
7/6 2
8/6 2
7730÷8870 4385÷6700 7760÷8920
X -
N.D. -
- X
- -
II.1.1 Versions
B – Basic version (EQPLB-EQPHB).
S – The silenced version is complete with soundproofed compressors
and lower speed fans (EQPLBS-EQPHBS). The fan speed is
automatically increased when the external temperature increases
significantly.
T – The high efficiency versions, with a larger condensing section
(EQPL-EQPH).
Q – Super-silenced version complete with soundproofed compressors,
super low fan speed and larger condensing surface (EQPLBSS-
EQPHBSS). The fan speed is automatically increased when the
external temperature increases significantly.
II.1.2 Electrical Control Board
 Electrical panel can be accessed by opening the front panel, in
compliance with IEC Standards in force, fitted with opening and closing via
specific tool.
 Complete with:
 electrical wiring arranged for power supply 400-3ph-50Hz;
 auxiliary circuit power supply 230V-1ph-50Hz derived from main power
supply;
 control power supply 12V-1ph-50Hz drawn from the main power supply;
 main power supply switch with interlocking safety door isolator;
 automatic thermal overload switch to protect the compressors and the
motor-driven fans;
 auxiliary circuit protection fuse;
 compressors power contactore;
 remote machine controls: ON/OFF;
 remote machine controls: compressor operating light and general lock
light.
 Programmable microprocessor electronic board handled by the
keyboard inserted in the machine.
 This electronic board performs the following functions:
 regulation and management of the set points for unit outlet water
temperature; cycle inversion (EQPHB-EQPH-EQPHBS-EQPHBSS);
safety timer delays; circulating pump; compressor and system pump hour-
run meter; defrost cycles; electronic anti-freeze protection which cuts in
automatically when the machine is switched off; and the functions which
control the operation of the individual parts making up the machine;
 complete protection of the unit, possible shutdown and display of all the
-
triggered alarms;
-
 compressor protection phase sequence monitor;
X
 unit protection against low or high phase power supply voltage (CMT
N.D.
accessory)
 display of the programmed set points on the display; of the water in/out
temperatures on the display; of the condensation and evaporation
pressures; of the electrical voltage values in the three phases of the
electrical circuit that powers the unit; of the alarms on the display; of the
chiller or heat pump function on the display (EQPHB-EQPH-EQPHBS-
EQPHBSS);
 user interface menu;
 automatic pump operating time balance (DP1-DP2, ASDP1- ASDP2
installations);
 automatic activation of the pump in standby in the event of an alarm
(DP1-DP2, ASDP1-ASDP2 set ups);
 displayed inlet water temperature at the recovery unit/desuperheater;
 alarm code and description.
 Alarm history management (menu protected by factory password);
in particular, for every alarm, the following are memorised:
○ date and time of intervention;
○ in/out water temperature values as soon as the alarm was triggered;
○ the evaporation and condensation pressure values at the time of the
alarm.
○ alarm delay time from the switch-on of the connected device;
○ compressor status at the time of the alarm;
 Advanced functions:
 Hi-Pressure Prevent function with forced cooling capacity partialisation
for a high outdoor temperature (in summer mode);
 set-up for serial connection ( SS, FTT10, KBE, KBM, KUSB accessory);
 possibility to have a digital input for remote management of double set
point (DSP);
 possibility of having a digital input to manage total recovery (RC100), the
desuperheater (DS) or for production of domestic hot water by means of the
3-way diverter valve (VDEV). In this case, there is the possibility of using a
temperature probe instead of the discrete input. (refer to the specific section
for more details);
57
SECTION II :: INSTALLATION AND MAINTENANCE