VECTIOS™ PJ Compact air-air rooftop units Extra heating (Group 17) This new option is the solution for applications which require Heat recovery coil (HRC). The coil function is to pre-heat the the highest degree of indoor comfort and humidity control. n air that will pass through the main indoor coil. For this, it uses It could be of particular interest to the supermarkets, the temperature of an outdoor water installation. restaurants, museums and in cases of high latent cooling The coil is supplied with a 3-way valve for installation outside load and/or in humid climates.It’s used in low temperature the unit but manages by the electronic control. stock applications to avoid condensation over goods or refrigerantion cabinets glass doors. This option is compatible with C0, CS, CF, CQ, CT, T0 and TS assemblies. It allows controlling the maximum levels of humidity in the room in the most efficient way, and independently of the nWith CF assembly, 100% fresh air, it is possible to incorporate location and the part-load of the unit. a preheater module (electrical heater) coupled to the fresh air intake. This module is supplied in kit for installation on site. The electrical heater with proportional control will modulate capacity to get the condenser inlet conditions within the operating limits of the cooling circuit in case of very low outdoor temperatures. Two values of power are available: low (B) and nominal (N). The use of the extra condensation coil to reheat the air after the evaporator provides a flexible and efficient operation to accurately compensate for the room demand. This option also allows an additional reheating using the auxiliary electrical heaters (Group 8). 0 Note: The electrical connection of the kit is the responsibility of the installer. 1 2’ 3’ 2 3 Special applications (Group 18) nActive dehumidificationwith condensation coil. Extra condensationcoil for dehumidification applications in high relative humidity ambients. The dehumidification process is done by the main refrigerant coil. Hot gas recovered is injected in the additional condensation coil to reheat the air. Dry temperature Td (ºC) 0 → 1: Normal evolution in the evaporator without using extra condensation coil Condensation Extra 1 → 2: Reheating using extra condensation coil in units of coil condensation 1 circuit coil 1 → 2’: Reheating using extra condensation coil in units of 2 circuits 2 → 3: Additional reheating using the auxiliary electrical heaters in units of 1 circuit 2’ → 3’: Additional reheating using the auxiliary electrical heaters in units of 2 circuits The “Selection software” allows to obtain the value of the supply air temperature for the point 2 (or 2 ') according to Evaporation the extra condensation coil. It will also calculate point 3 (or coil 3’) according to the power selected for the auxiliary electrical heaters. Note: the active dehumidification is not compatible with the hot water coil, the gas boiler, the gas burner, the air zoning and the CF assembly. 242 242 CATALOGUE 2021 )s.a gk/g( W ytidimuh cifidepS 100% 90% 80% 70% 60% Ou tdoor airIndoor air 50% 40% 30% 20% 10%