General Description - Clint CHA/K 726-P Mode D'emploi

DESCRIERE GENERALA
Agregate pentru racirea apei cu condensatorul racit cu aer, cu ventilatoare
axiale pentru instalare externa. Gama cuprinde 17 modele cu capacitati
de racire de la 199 la 1051 kW.
VERSIUNI:
CHA/K - doar racire
CHA/K/SSL - doar racire super silentioasa
CHA/K/WP - pompa de caldura reversibila
CHA/K/WP/SSL - pompa de caldura reversibila super silentioasa
CARACTERISTICI CONSTRUCTIVE:
Structura. De tip autoportant, realizata din otel galvanizat protejata prin
acoperirea ulterioara cu pulberi de poliester. Panourile, usor demonta-
bile, permit accesul in interiorul unitatii pentru intretinere sau pentru alte
operatiuni necesare.
Compresoare. Scroll, ermetice, cu vizor pentru nivelul uleiului. Au
protectie termica incorporata si sunt dotate cu rezistenta carter; sunt
montate cu antivibranti din cauciuc.
Ventilatoare. De tip axial cuplate direct la motoarele electrice trifazice.
Ventilatoarele sunt echipate cu o grila de protectie pentru a se evita
accidentele. Pe unitatile super silentioase se utilizeaza ventilatoare cu
turatie joasa.
Condensator. Doua baterii din tevi de cupru cu aripioare din aluminiu.
Evaporator. De tipul in placi de inox AISI 316, cu doua circuite independ-
ente pe partea cu agentul frigorific si unul pe partea cu apa. Pe unitatile
in pompa de caldura sunt instalate intotdeauna rezistente antiinghet.
Panou electric. Include: intrerupator general, sigurante (726-P÷24012-P)
sau intrerupatoare magnetotermice (27012-P÷36012-P), protectie la su-
prasarcina pentru compresoare si protectie termica pentru ventilatoare;
relee de interfata; terminale electrice pentru conexiunile externe.
Microprocesor pentru gestionarea automata a unitatii. Permite vizuali-
zarea in orice moment a parametrilor de functionare ai unitatii, controlul
temperaturii apei, reglarea valorii stabilite si in cazul opririi partiale sau
totale a unitatii, indicarea alarmei corespunzatoare.
Circuitul frigorific al versiunilor CHA/K si CHA/K/SSL.
Fiecare unitate are doua circuite frigorifice independente si cuprind
pentru toate modelele urmatoarele componente: ventil de expansiune
termostatic cu egalizare externa (726-P÷15010-P), vana de expansiune
termostatica electronica (16812-P÷36012-P) ,electroventil pe linia de
lichid (pump down) (1048-P÷15010-P), filtru deshidrator, indicator de
lichid si umiditate, presostat de inalta si joasa presiune (cu reglaj fix) si
supapa de siguranta (1048-P÷36012-P).
Circuitul frigorific al versiunilor CHA/K/WP si CHA/K/WP/SSL.
Versiunea cu pompa de caldura, pe langa componentele versiunii doar
racire, cuprinde pentru fiecare circuit: ventil cu 4 cai pentru inversiune mod
de functionare, separator de lichid pe aspiratie, rezervor de agent frigorific,
supapa de retinere si robineti pe linia de lichid (1048-P÷36012-P).
Circuitul hidraulic al versiunilor CHA/K, CHA/K/SSL, CHA/K/WP,
CHA/K/WP/SSL. Include: evaporator, traductor, senzor antiinghet,
presostat diferential apa si supapa de purjare cu actionare manuala.
ACCESORII MONTATE IN FABRICA:
IM - Sigurante magnetotermice - sigurante fuzibile si relee termice.
SL - Insonorizare compresoare. Compresoarele sunt dotate cu
izolatie fonica.
CT - Controlul condensatiei pana la temperatura exterioara de 0 °C
obtinuta oprirea a cateva ventilatoare.
CC - Controlul condensatiei obtinut prin intermediul reglarii in continuu
a turatiei ventilatoarelor pana la temperatura exterioara de –20 °C in
functionarea in modul racire.
DS - Recuperator partial cu recuperare de 20%.
RT - Recuperator total de caldura cu recuperare de 100%.
PS - Pompa de circulatie incorporata in unitate.
PD - Pompa dubla de circulatie instalata in unitate; o pompa functi-
oneaza si cealalta este in stand-by si la fiecare pornire se va activa
prima data pompa care are mai putine ore de functionare.
4

GENERAL DESCRIPTION

Air cooled water chiller units, with axial fans for outdoor installation.
The range consists of 17 models covering a cooling capacity from 199
to 1051 kW.
VERSIONS:
CHA/K - cooling only
CHA/K/SSL - super silenced cooling only
CHA/K/WP - reversible heat pump
CHA/K/WP/SSL - super silenced reversible heat pump
TECHNICAL FEATURES:
Frame. Self-supporting galvanized steel frame further protected with
polyester powder painting. Easy to remove panels allow access to the
inside of the unit for maintenance and other necessary operations.
Compressors. Scroll with oil sight glass. They are fitted with internal
overheat protection and crankcase heater if needed, installed on rubber
shock absorbers.
Fans. Axial fans directly coupled to a three-phase electric motor with
external rotor. A safety fan guard is fitted on the air flow discharge. On
the super silenced units there are fans with a low rpm.
Condenser. Two copper tube and aluminium finned coils.
Evaporator. In AISI 316 stainless steel braze welded plates type with two
independent circuits on the arefrigerant side and one on the water side.
On the heat pump units is always installed an antifreeze heater.
Electrical board. Includes: main switch with door safety interlock; fuses
(726-P÷24012-P) or magnetothermic (27012-P÷36012-P), overload
protection for compressors and thermocontacts for fans; interface relays,
electrical terminals for external connections.
Microprocessor for automatic control of the unit allowing continuous
display of the operational status of the unit, control set and real water
temperature and, in case of partial or total block of the unit, indication of
security device that intervened.
Refrigerant circuit versions CHA and CHA/SSL.
Each unit includes two independent refrigerant circuits. Produced in
copper tubing, all models have the following components: thermostatic
expansion valve with external equalisation (726-P÷15010-P), electronic
expansion valves (16812-P÷36012-P), electro valve on liquid line (pump
down) (1048-P÷15010-P), filter-drier, level and humidity indicator,
high and low pressure switches (with fixed setting) and safety valve
(1048-P÷36012-P).
Refrigerant circuit versions CHA/WP and CHA/WP/SSL.
The unit in heat pump version, in addition to the components of the
only cooling unit, includes for each circuit: 4-ways reverse valve, liquid
separator on the suction line, liquid receiver, check valves and inert-
cepting valves on liquid line (1048-P÷36012-P).
Water circuit CHA, CHA/SSL, CHA/WP, CHA/WP/SSL version.
Includes: evaporator, temperature sensor, antifreeze sensor, differential
water pressure switch and manual air vent.
FACTORY FITTED ACCESSORIES:
IM - Magnetothermic switches instead of fuses and thermal relais.
SL - Unit silencement. The compressors are equipped with sound-
absorbing covering.
CT - Condensation control to outside air temperatures of 0 °C ob-
tained by means of stopping some fans.
CC - Condensation control obtained by means of continuous adjust-
ment of the fan rotation speed up to outside air temperatures of –20
°C in operation as a refrigerator.
DS - Desuperheater with 20% heat recovery.
RT - Total heat recovery serial connected for from 100%.
PS - Circulating pump inserted inside the unit.
PD - Double circulating pump installed in the unit, working one in
stand-by to the other; by every start request, the pump with the least
number of working hours is activated first.