DUCTABLE AIR-COOLED SCROLL CHILLERS 30PA / PAC
Pumps The pump installed in a unit 30PAC can be replaced for: - High-pressure, monocellular, IP55, circulation pump that can operate with glycol water (mono-ethylene glycol). - Low-pressure, monocellular, IP55, circulation pump that can operate with glycol water (mono-ethylene glycol) (except model 90). Conﬁguration - Vertical air supply, M01 assembly (default horizontal supply, M00 assembly). - In the STD version: Different conﬁgurations of available pressure from 7 to 35 mm.w.c. Climatic conditions - In units with the STD version that work in cooling with an outdoor temperature lower than 12ºC, the condensation pressure control allowing an “all seasons” operation (up to -15ºC) is mandatory. This is performed per motorized damper in the fan outlet. Flexible ducts for supply and return air. Flexible hydraulic connections (500mm), supplied in the kit. Available for: • Inlet / outlet of the unit. • Inlet / outlet of the desuperheater circuit. - For 30PA units, ﬁlter with stainless steel mesh (500 microns), supplied in the kit. Note: this ﬁlter is standard for 30PAC units. - Cut-off and water control valves, supplied in the kit. - High-pressure and low-pressure gauges in the cooling circuit. Energy recovery Desuperheater circuit which includes: - Thermally isolated, welded stainless steel plate exchanger for working in a closed circuit in the recovery of hot gases. - Draining valve and ball valve - Hot water recovery control thermostat. - Option for a 3-speed hot water circulation pump.
2 5 6
1 Inlet to the indoor circuit 2 outlet from the indoor circuit 3 Outlet from the recovery circuit
Installation - Antivibration mounts made of rubber. - Protection grille for the coil. - Gravimetric ﬁlters in the return air. The ﬁlters frame is removable, and upon request, it is possible to supply the frame independently with the unit, to be joined on site.
C A R R I E R 2 0 1 6 / 2 0 1 7
Coils protection: • Coil with copper pipes and copper ﬁns (upon request). • Coil with copper pipes and aluminium ﬁns with polyurethane and blygold coating. During periods with low outdoor temperatures, antifreeze protection for the unit: • Electrical heaters in the condensate drain pan. Mandatory when outdoor temperatures are below 3°C. • Operation with glycol water up to a minimum outlet temperature of -10ºC. Thermal insulation of the body 18 mm thick. Mandatory with negative conditions. • Anti-freeze protection with ﬂexible electrical heaters around the pipe of the hydraulic circuit.
5 Plate exchanger
6 Circulation pump (optional)
Electric panel - Compressor soft starter. - Transformer for power supply without neutral. - Voltage 400 / 440V - 60 Hz (upon request). - Energy meter for monitoring of the power consumption of the installation. Control / communications management - TCO user terminal, for remote control. - RS485 serial cards for network communication with protocols: Carel, Modbus, LonWorks®, BACnetTM MSTP, Konnex. - Ethernet pCO Web card for network communication with protocols: Modbus TCP/IP, BACnetTM Ethernet, TCP/IP, SNMP V1-2-3, FTP and HTTP.
4 Inlet to the recovery circuit