4 About the units and optionsInstaller reference guide11EWAQ+EWYQ006+008BAVP + EK(2)CB07CAV3 +EKMBUHCA3V3+9W1Packaged air-cooled water chillers and packaged air to water heatpumps4P492901-1 – 2017.06Option System components required for that optionOutdoor unitEWAQ006+008BAVP orEWYQ006+008BAVPControl boxEKCB07CAV3Option boxEK2CB07CAV3Valve kit EKMBHBP1Optional equipmentUser interface(EKRUMCL1)(mandatory)ORemote outdoor sensor(EKRSCA1)OPC configurator(EKPCCAB)OBottom plate heater(EKBPH140L7)O(a)Room thermostat(EKRTWA, EKRTR1)O ORemote sensor for wirelessthermostat (EKRTETS)O OBackup heater kit(EKMBUHCA3V3,EKMBUHCA9W1)O O O(a)Remote indoor sensor(KRCS01-1)O O OField-supplied componentsSpace heating/coolingoperation control (orshut‑off valve)OPreferential kWh ratepower supply (voltage‑freecontact)O OElectric meter O O OPower consumption digitalinputsO O OAlarm output O O OSpace cooling/heating ON/OFF outputO O OChangeover to externalheat sourceO O O(a) Only for EWYQ006+008BAVP.INFORMATIONThis system does NOT support domestic hot water andheat pump convector functionalities.4.3.2 Possible options for the outdoor unitUser interface (EKRUMCL1)An additional user interface is available as an option. The additionaluser interface can be connected to have both close control thecontrol box, and room thermostat functionality in the principal spaceto be heated.EKRUMCL1 is standard available with a language pack that containsEnglish, French, Italian, and Spanish. Other languages can beuploaded by PC software.For installation instructions, see "7.8.6 To connect the userinterface" on page 38.INFORMATION▪ If control box EKCB07CAV3 is NOT part of the system,connect the user interface directly to the outdoor unit.▪ If control box EKCB07CAV3 is part of the system, youcan also connect the user interface to the control box.Remote outdoor sensor (EKRSCA1)By default the sensor inside the outdoor unit will be used to measurethe outdoor temperature.As an option the remote outdoor sensor can be installed to measurethe outdoor temperature on another location (e.g. to avoid directsunlight) to have an improved system behaviour.For installation instructions, see the installation manual of the remoteoutdoor sensor and the addendum book for optional equipment.INFORMATIONYou can only connect either the remote indoor sensor orthe remote outdoor sensor.Bottom plate heater (EKBPH140L7) (only forEWYQ006+008BAVP)▪ Prevents freeze-up of the bottom plate.▪ Recommended in areas with low ambient temperature and highhumidity.▪ For installation instructions, do NOT take into account theinstallation manual delivered with the bottom plate heater, it isoverruled by the one delivered with the outdoor unit.