Panasonic PAW-HPM 1 User Manual

383.3.10 Screed dryingThe “screed drying” function enables the initiatiation of a special heating-up programfor a composition floor layer. Depending on the screed material used and itscomposition, it is possible to adjust the parameters for starting time and heat-up,holding and cool-down steps, before the function is activated.The HPM controller offers the “screed drying” function only if a flow temperaturesensor is assigned to the heating circuit, or if the system diagram “50090” (heat pumpwith communication + HC1: unmixed without a pump) has been loaded. After thissystem diagram has been loaded, the “screed drying” function will appear in thedisplay automatically. If a different system diagram was loaded, or if it is desirable tostart the function from normal operation, the following steps must be performed:Press “OK” in the default display. Select “heating circuits” using “DOWN” and enterthe menu by pressing “OK” (in system diagrams using more than one heating circuit,select heating circuit x and enter by pressing “OK”). Select “functions” using“DOWN” and press “OK” to enter the menu. The following parameters will bedisplayed:Table 3.4: Parameters to adjust and activateWhen screed drying is active, the flow temperature setpoint of the current step iscontrolled through control of the valve in the heating circuit and demand to the heatpump, respectively.If the difference between the setpoint and current value exceed a certain limit for agiven time, an error message is generated. The reaction to a power failure will consistof a step being repeated, or of the function being started again or cancelled. Themonitoring to be used can be set using the additional parameters in this menu.In the “status” menu of the heating circuit, and in the menu “service / screed drying”,it is possible to view further information about the current step when the function isactivated (e.g.: Setpoint temperature 35°C, step status: heating-up).At the end of the screed drying function, the operating mode of the heating circuitswitches to weather-dependent setpoint calculation if an outdoor sensor is assigned. Ifsystem diagram “50090” was choosen, no outdoor sensor is assigned and the heatingcircuit goes into the operating mode “not active/OFF” (no demand to heat pump).Additional functions can be found in Part II of the manual; “Parameter description”.Name Info text Range / default valuesactive activate the function 0 - 1; default: 0InitTemp initial temperature 2 – 50 °C; default: 25 °CdwellInitTime dwell time initial temperature 0 – 10 days; default: 1 dayrateTmp+ rate of heat-up 1 – 50 K per day; default: 5 K per dayrateTmp- rate of cool-down 1 – 50 K per day; default: 5 K per daymaxTemp maximum temperature 2 – 65 °C; default: 45 °CdwellMaxTemp dwell time maximum temperature 0 – 10 days; default: 3 days