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Rhoss units Eurovent certification
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| Cooling mode (A1) | Heating mode (S1, S2, A3) | Recovery mode (A2) | ||
| Evaporator temperature range | [°C] | -8 — +20 | -8 — +20 | -8 — +20 |
| Condenser temperature range | [°C] | +24 — +55 | +24 — +55 | +24 — +55 |
Refer to the technical documentation for details.
1 Evaporator inlet and outlet water temperature (disposer) 10/7°C; hot water temperature 45°C, temperature differential at condenser (main/secondary exchanger) 5°C; fouling factor of 0 m2 K/W.
2 Condenser inlet and outlet water temperature (disposer) 30/35°C; chilled water outlet temperature 7°C, temperature differential at the evaporator (main heat exchanger) 5°C; fouling factor of 0 m2 K/W.
3 Chilled water outlet temperature at the evaporator (main exchanger) 7°C at nominal flow rate; hot water outlet temperature at the recuperator (secondary exchanger) 45°C at nominal flow rate; fouling factor of 0 m2 K/W.
4 In medium-temperature installations, for a water temperature of 55°C, in average climate.
5 In low-temperature installations, for a water temperature of 35°C, in average climate.
6 Sound power level in dB(A) based on measurements carried out in accordance with regulation UN EN ISO 9614.
7 Sound pressure level in dB(A) referring to a 10 m distance from the unit, in free field and directionality factor equal to Q=2 in accordance with standard UNI EN-ISO 3744.
8 Data calculated in accordance with EN 14511 under nominal conditions.
E - Main Heat Exchanger. The heat exchanger connected to the internal system:
— The fancoil coil, which is used for both cooling and heating in 2-pipe installations, or
— The fancoil coil, which is used for cooling only in 4-pipe installations.
R - Recovery Heat Exchanger.The heat exchanger connected to the internal system:
— The heating coil of the fancoil, which is used for heating only in 4-pipe installations, and/or
— The domestic hot water (DHW) tank heat exchanger.
S - Air side condenser/evaporator. The external heat exchanger responsible for:
— Rejecting waste heat to the environment in cooling mode (Mode A1), or
— Absorbing free heat from the environment in heating mode (Modes S1, A2, A3).
A1 - Cooling mode. The unit absorbs heat from the Main Heat Exchanger operating as an evaporator and rejects it to the External Heat Exchanger operating as a condenser.
S1 - Heating mode. The unit absorbs heat in the External Heat Exchanger operating as an evaporator and transfers it to the Main Heat Exchanger operating as a condenser.
S2, A3 - Heating mode. The unit absorbs heat in the External Heat Exchanger operating as an evaporator and transfers it to the Heat Recovery Exchanger operating as a condenser.
A2 - Heat recovery mode. The unit absorbs heat from the Main Heat Exchanger operating as an evaporator and transfers it to the Heat Recovery Exchanger operating as a condenser.
Curved arrows show the heat flow direction between exchangers in a given operating mode.
| 1 | Electrical Control Board |
| 2 | Control panel |
| 3 | Isolator |
| 4 | Main heat exchanger water inlet |
| 5 | Main heat exchanger water outlet |
| 6 | External mains water inlet (disposer) |
| 7 | External mains water outlet (disposer) |
| 8 | Secondary/recovery heat exchanger water inlet |
| 9 | Secondary/recovery heat exchanger water outlet |
| 10 | Safety valves |
| 11 | Pressure gauges |
| 12 | Power supply inlet |
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