TS VLS H C 604 1204 GB 0617
Table Of Contents
- Tender Specification
- USERIESU: VLS / VLH / VLC 604-1204
- UTYPEU: Air cooled water chiller, heat pump and condensing unit
- UTECHNOLOGYU: multi-scroll compressors, R410A refrigerant
- UCAPACITY RANGEU:
- Cooling ( 153-307 [kW]
- Heating ( 170-337 [kW]
- 1 General description
- 2 Key points
- 3 Cabinet
- 4 Compressors
- 5 Evaporator
- 6 Condenser
- 7 Condenser fans
- 8 Refrigerant circuit
- 9 Control panel
- 10 Safety and control devices
- 11 Optional hydro kits
- 12 Factory installed options
- 13 Field installed accessories
- 14 Conformity with standards
Tender Specification
VLS / VLH / VLC 604-1204
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 4-way reversing valves,
suction accumulators and liquid receivers.
Total heat recovery units (VLR) are additionally provided with 4-way reversing
valves and liquid receivers.
9 Control panel
A new optimized control with an easy-friendly interface, manages unit
operation under different load and temperature condition and can provide:
• Compressor management
o Power on/off
o Anti-cycle
o Tandem / trio unloading for high pressure, high temperature and/or
high compressor pressure ratio
• Chilled and hot water temperature regulation (return water temperature
RWT - P+I type or leaving water temperature LWT - neutral band type)
• Automatic control of suction superheating though electronic expansion
valve with optimized functions (cooling, heating, start-up and defrost)