3916 - OpTIONSOptions No. Description advantages UseAir heat exchanger with pre-treated fins3A Fins made of pre-treated aluminium(polyurethane and epoxy)Improved corrosion resistance, recommended for marineenvironments30RQS/RQSY039-160*Low temperature glycol solution 5B Low temperature chilled water production downto 0°C with ethylene glycol and propyleneglycol. Note: With option 5B the unitsare equipped with traditional coils (Cu/Al).Covers specific applications down to 0 °C 30RQS 039-160Low temperature glycol solution 6B Low temperature chilled water production downto -15°C with ethylene glycol and -12°C withpropylene glycol. Note: With option 6B the unitsare equipped with traditional coils (Cu/Al).Covers specific applications such as ice storage andindustrial processes30RQS 039-160Very low noise level 15LS Acoustic compressor enclosure and low-speedfansNoise emission reduction at reduced fan speed 30RQS/RQSY039-160Suction filter 23B Washable G2 efficiency filter in accordancewith EN 779Prevents pollution of the air heat exchanger 30RQSY039-078Winter operation** 28 Fan speed control via frequency converter Stable unit operation when the air temperature is between-10°C and -20°C.30RQS 039-160Soft starter 25 Electronic compressor starter Reduced compressor start-up current 30RQS/RQSY039-080Frost protection down to -20°C 42 Electric heater on the hydronic module Hydronic module frost protection at low outsidetemperatures30RQS/RQSY039-160Partial heat reclaim 49 Partial heat reclaim by desuperheating of thecompressor discharge gas.Free high-temperature hot-water production simultaneouslywith chilled and hot-water production30RQS/RQSY039-160Master/slave operation 58 Unit equipped with an additional field-installedleaving water temperature sensor, allowingmaster/slave operation of two units connectedin parallelOperation of two units connected in parallel with operatingtime equalisation30RQS/RQSY039-160High-pressure single-pumphydronic module116B Single high-pressure water pump, water filter,expansion tank, temperature and pressuresensors. See hydronic module option.Easy and fast installation 30RQS/RQSY039-160High-pressure dual-pumphydronic module116C Dual high-pressure water pump, water filter,expansion tank, temperature and pressuresensors. See hydronic module option.Easy and fast installation, operating safety 30RQS/RQSY039-160Low-pressure single-pumphydronic module116F Single low-pressure water pump, water filter,expansion tank, temperature and pressuresensors. See hydronic module option.Easy and fast installation 30RQS/RQSY039-160Low-pressure dual-pump hydronicmodule116G Dual low-pressure water pump, water filter,expansion tank, temperature and pressuresensors. See hydronic module option.Easy and fast installation, operating safety 30RQS/RQSY039-160High-pressure variable-speedsingle-pump hydronic module116J Single high-pressure water pump, water filter,expansion tank, temperature and pressuresensors. See hydronic module option.Easy and fast installation, reduced power consumption ofthe water circulation pump30RQS/RQSY039-160High-pressure variable-speeddual-pump hydronic module116K Dual high-pressure water pump, water filter,expansion tank, temperature and pressuresensors. See hydronic module option.Easy and fast installation, operating safety, reduced powerconsumption of the water circulation pump30RQS/RQSY039-160High-pressure single-pumphydronic module withoutexpansion tank116R Single high-pressure water pump, water filter,temperature and pressure sensors. Seehydronic module option.Easy and fast installation 30RQS/RQSY039-160High-pressure dual-pumphydronic module withoutexpansion tank116S Dual high-pressure water pump, water filter,temperature and pressure sensors. Seehydronic module option.Easy and fast installation, operating safety 30RQS/RQSY039-160Low-pressure single-pumphydronic module withoutexpansion tank116T Single low-pressure water pump, water filter,temperature and pressure sensors. Seehydronic module option.Easy and fast installation 30RQS/RQSY039-160Low-pressure dual-pump hydronicmodule without expansion tank116U Dual low-pressure water pump, water filter,temperature and pressure sensors. Seehydronic module option.Easy and fast installation, operating safety 30RQS/RQSY039-160High-pressure variable-speedsingle-pump hydronic modulewithout expansion tank116V Single high-pressure water pump, water filter,temperature and pressure sensors. Seehydronic module option.Easy and fast installation, reduced power consumption ofthe water circulation pump30RQS/RQSY039-160High-pressure variable-speeddual-pump hydronic modulewithout expansion tank116W Dual high-pressure water pump, water filter,temperature and pressure sensors. Seehydronic module option.Easy and fast installation, operating safety, reduced powerconsumption of the water circulation pump30RQS/RQSY039-160JBus gateway 148B Two-directional communications board,complies with JBus protocolEasy connection by communication bus to a buildingmanagement system30RQS/RQSY039-160Bacnet gateway 148C Two-directional communications board,complies with Bacnet protocolEasy connection by communication bus to a buildingmanagement system30RQS/RQSY039-160LonTalk gateway 148D Two-directional communications board,complies with LonTalk protocolEasy connection by communication bus to a buildingmanagement system30RQS/RQSY039-160Water heat exchanger screwconnection sleeves264 Inlet/outlet screw connection sleeves Permit connection of the unit to a screw connection 30RQS/RQSY039-160Welded water heat exchangerconnection sleeves266 Welded inlet/outlet connection sleeves Permit connection of the unit to a connection other than aVictaulic connection30RQS/RQSY039-160Remote Interface 275 Remotely installed user interface(communication bus)Remote heat pump control up to 300 m 30RQS/RQSY039-160* 30RQS/RQSY 039-160 with option 49 or 30RQS 0039-160 with option 6B.** Winter operation option: This option allows operation of the unit down to -20°C outside air temperature due to the optimised control of the condensing temperature. One fan is equipped with afrequency converter.