Manual pCoOEM Bicircuit - Rhoss

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The delay time at the activation of the pre-ventilation compressors is a settable parameter protected from specific user’s password. 7.2.3 Post-ventilation The post-ventilation function it’s possible activate it only in chiller working (parameter protected from manufacturer’s password), according to, after a high pressure alarm (by pressure switch or trasductor), the fan of the related circuit will be activated at maximum capacity for a time settable from maintenance parameter , protected from specific password. 7.2.4 Heat pump working RBC MAXV CFPWM MINV HCOFF CFONOFF STPC CPRS[bar] CPRS Condensation pressure STPC Condensation setpoint RBC Condensation regulation band HCOFF Cut-off steps hysteresis MINV Condensation fans minimum speed MAXV Condensation fans maximum speed CFONOFF Condensation fan control from On-Off digital outlet CFPWM Condensation fan control from PWM analogue outlet The activation of a defrost cycle will cause the switch-off of the related fan group in heat pump mode. 7.2.5 High temperature/pressure pre-alarm RBC HYST_P HYSTA_HP CPRS[bar] / TC[°C] STPC THR_P THRA_H STPC Condensation regulation setpoint RBC Condensation regulation band THR_P High condensation prevention threshold HYST_P High condensation prevention hysteresis THRA_HP High condensation alarm threshold HYSTA_HP High condensation alarm hysteresis CPRS / TC Condensation Pressure/Temperature It’s possible activate a prevention function of high pressure/temperature of condensation, according to, after a threshold and an hysteresis are set-up, a fan activation step is checked, that will bring them at the maximum speed, with the purpose to prevent the intervention of the high condensation alarm, with following compressor’s switch-off. <strong>Rhoss</strong> S.p.A. S.A.T. Rev. 1.0 20/01/05 26
Among the manufacturer’s parameters, protected from password, there is a configuration parameter of prevention control of high condensation according to, is possible activate the control of the unit only in “normal” working (management of the loads after the evaporator thermostatic request), in the only defrost phase or in both working situations. If the high condensing pressure prevention control during the defrost phase is activated, it can be done in temperature and in pressure according to the hardware configuration of the system (The presence of the pressure transducer excludes the temperature control). That process will be active even with switched-off unit; The pre-alarm fan switch-on in installations with particular environment conditions that can bring high pressure conditions with the unit off, preventively reducing the pressure, can permit the starting of the compressors in difficult circumstances. <strong>Rhoss</strong> S.p.A. S.A.T. Rev. 1.0 20/01/05 27
Page 1 and 2: Electronic board PCO-OEM twin circu
Page 3 and 4: 5.3 Control setpoint compensation 1
Page 5 and 6: 13.2.1 Digital variables 63 13.2.2
Page 7 and 8: 2 INLET OUTLET LIST Is provided the
Page 9 and 10: Heat qualification X recovery Setpo
Page 11 and 12: 4 MAIN CIRCULATION PUMP MANAGEMENT
Page 13 and 14: 4.3 Second pump management The seco
Page 15 and 16: 5 THERMOREGULATION 5.1 Summer/winte
Page 17 and 18: Positive offset OFFSETC HEAT PUMP W
Page 19 and 20: RBM S1 C1 S2 C1 S1 C2 S2 C2 STPM EI
Page 21 and 22: RBM S2 C2 S2 C1 S1 C2 S1 C1 STPM Re
Page 23 and 24: 6.3 Rotation The compressor’s and
Page 25: If the 0÷5 Volt pressure trasducto
Page 29 and 30: If it’s whether or not the presen
Page 31 and 32: 8.4 Compressors and dripping The st
Page 33 and 34: 9 TIME BENDS Two types of time bend
Page 35 and 36: 11 ALARMS 11.1 Reset - Visualisatio
Page 37 and 38: Code Alarm Compressor Fans OFF Pump
Page 39 and 40: Code Alarm Compressor Fans OFF Pump
Page 41 and 42: 11.5 Flow alarm management 11.5.1 U
Page 43 and 44: The overtaking of the width’s min
Page 45 and 46: If the slider is positioned in the
Page 47 and 48: PGD description Parameter descripti
Page 49 and 50: PGD description power-on time Minim
Page 57 and 58: 13 SUPERVISORY The transmission of
Page 59 and 60: Description Type Address R/W Notes
Page 61 and 62: Description Type Address R/W Notes
Page 63: 13.2.1 Digital variables Carel Nome

Manual pCoOEM Bicircuit - Rhoss

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