Инструкция на Водяные чиллеры с воздушным охлаждением Systemair серии VLS 604-1204

Текст инструкции

1. Стр. 1 SERIES: VLS / VLH / VLC 604-1204

   TYPE: Air cooled water chiller, heat pump and condensing unit TECHNOLOGY: multi-scroll compressors, R410A refrigerant CAPACITY RANGE: Cool ing  153-307 [kW] Heating  170-337 [kW]

2. Стр. 2 1 General description

   VLS / VLH / VLC units have been designed and optimized to operate with R410A refrigerant and scroll compressors Thanks to multi-scroll technology and asymmetric design in tandem combination, it is possible to reach very high level of seasonal performances (ESEER up to 4,1), in line with Ecodesign…

3. Стр. 3 fan deck sound emission, the chillers are supplied with compressors box

   to reduce the noise emissions • Extra Low Noise (ELN): the units are equipped with star connected fans, fitted with a speed controller which allows the units to operate with a very low rotation speed. Besides very low fan deck sound emission, the chillers are supplied with compressors box and…

4. Стр. 4 Several hydraulic options are available in order to cover a wide range of

   requirements in terms of pump available static pressure, redundancy and inertia water side The general operation status of the unit is steadily managed by a microprocessor implementing a dedicated developed software, ensuring a total protection of compressor inside its operating envelope and…

5. Стр. 5 2 Key points

   • High seasonal performances  ESEER up to 4.1 • Common configuration for the different versions  Easy upgrade of the units in stock or on field • Electronic expansion device  Excellent control of superheating for the best performance at full and partial load and for a safe operation •…

6. Стр. 6 3 Cabinet

   The cabinet is made of heavy gauge galvanized steel. All galvanized steel components are individually painted by a special painting process before the assembly of the unit. This painting system performs a homogeneous protection to the corrosion. The painting is a polyester powder based type, colored…

7. Стр. 7 protection against freezing at low ambient temperature when the unit is

   switched off. Maximum working pressure is 10 [bar] water side and 45 [bar] refrigerant side 6 Condenser In Heat pump version (VLH), Condensing unit (VLC) and Total heat recovery unit (VLR), condenser coils are made of seamless copper tubes, arranged in staggered rows, mechanically expanded into…

8. Стр. 8 8 Refrigerant circuit

   All the units are equipped with two independent and separate refrigerant circuits. Each refrigerant circuit is equipped with liquid line and discharge line shut-off valves, filter-drier with solid core, sight glass and electronic expansion valve. Heat pump units (VLH) are additionally provided with…

9. Стр. 9 Evaporator antifreeze protection

   Defrost management High and low pressure operating conditions management External interlocks management Remote control management o Unit power on / off o Unit cool / heat operation o Summary alarm signal • Remote signaling, by dry contacts: o Voltage presence o Compressors in operation o General…

10. Стр. 10 • Refrigerant coil temperature

    • Heat recovery temperature Unit controller can display various alarms and operation status: • Low / High pressure • Evaporator antifreeze • Lack of water flow • Compressor operation / operating hours and start-up numbers • Pump operation / operating hours • Compressor thermal protection • Fan…

11. Стр. 11 • Crankcase oil electric heater

    • Water differential pressure switch • Safety valve on discharge lines Control • • • • • • • • • High pressure transducers Low pressure transducers Discharge gas temperature probes Return water temperature sensor Leaving water temperature sensor (with an antifreeze function) Suction temperature…

12. Стр. 12 components

    • Single or double pump with low available static pressure (100 [kPa]) or high available static pressure (200 [kPa]) • Expansion tank (25 [l] for all models) • Check valves (in case of 2 pumps) • Safety valve • Automatic air vent valve • Thermal insulation for pipes and water pump(s) On board hydro…

13. Стр. 13 12 Factory installed options

    • • • • • • • • • • • • • • • • • ModBus protocol kit for BMS Lonwork protocol kit for BMS Bacnet protocol kit for BMS Compressors soft-starter Fan speed control for low ambient operation in cooling mode Double set point Power factor correction capacitors Compressor overload protection Automatic…

14. Стр. 14

    • • • • • • • Remote keyboard panel Sequencer, up to max four units Master and slave control, up to max four units Anti-vibration spring Water flow switch Water pressure switch Water filter Remote hydro kits with buffer tank, 1 or 2 low or high pressure pump(s), relevant accessories, with or without…

Схемы, таблицы и рисунки — в просмотре документа выше. Клик по номеру страницы открывает её в просмотре.