NEWS
Interclima 2012
Vesttherm participate in Interclima Paris 2012 fair.
FAQ
Here you can find answers for frequently asked questions.
- Close all
| Alarm no. 4 ? |
| CAUSE: If the evaporator falls below 19°C the heat pump stops. Alarm no. 4 appears in the display. The temperature is outside the heat pumps working area. ANSWER: The supplementary heating should take over the heating process. By gas defrosting, check the solenoid valve opens during defrost. Wait until the temperature is within the heat pumps working area. |
| There are water drops out of the exhaust air ? |
| CAUSE: It is because of high humidity in the intake air. This does not affect the heat pump operations. This will typically happen the first time the heat pump is started. It can also occur if wet clothes is hung up for dry in the same room as the heat pump takes air from. |
| The hot water becomes cold by high consumption ? |
| CAUSE: The heat pump can deliver approx. 320L hot water in a stretch of 40°C hot water at a starting temperature of 55°C in the tank. If the need for hot water is higher, the heat pump cannot keep up. The heating rod will help heating, if it is connected. ANSWER: Check if the heat source combined with the heating rod is activated. |
| There is running water on the floor ? |
| CAUSE: Check the heat pump are leveled. Check defrost water runs down properly into the defrost tray. Check that the drain hose from defrost drain is not stopped. ANSWER: Put the heat pump in correct level. Mount the defrost tray correctly. Clean the drain hose. |
| The display is not active, output data is not possible ? |
| CAUSE: If the display has been removed and not installed properly on the base print. Static electricity can turn the display off. ANSWER: Mount the display connector correctly in the base print. Replace the display. Check that the ground wire is properly mounted to the upper door. |
| No lights in the panel ? |
| CAUSE: Check fuse. Check that the power plug is plugged into the socket on the wall. Check if the power switch on the wall is turned on. Check if the heat pump is switched on. ANSWER: Change the fuse if necessary. Put in the plug into the socket. Turn on the power switch. Turn on the heat pump. |
| The compressor does not start ? |
| CAUSE: There is a built-in delay of 5 min. from the compressor stops to a new start. Only for models with electronic control. ANSWER: Wait 5 min. and check the compressor again. |
| The compressor runs continuously and the water is not hot enough ? |
| CAUSE: There is connected radiator / floor heating to the heat pump and the need for heating is larger than the heat pump can keep up with. The evaporator is stopped. There may be a leak in the cooling system, all or some of the coolant is lost. Check temperatures in the cooling system. See schema for curvatures of temperature. ANSWER: Mount the thermostat so that hot water has always the first priority. Clean the evaporator gently with clean water. Locate the leak and repair it, fill with coolant. Quantity: See model type. |
| The compressor is running constantly , the water is warmer than the specified and the high pressure switch drops out (alarm no. 5) ? |
| CAUSE: Sensors are not correctly placed into sensor pockets. Sensors must be placed at the bottom of sensor pockets. ANSWER: Put the sensors correctly into sensor pockets. |
| Condensate drain is dripping ? |
| CAUSE: There will be condensation during heating cycle. It happens when the surface temperature at the evaporator is below dew point temperature of the inlet. ANSWER: Condensate water is collected in the defrost tray and passed through the attached defrost hose to floor drain. |
| The cooling system drops out on the high pressure switch (alarm no. 5) ? |
| CAUSE: The ambient temperature is higher than +35°C and the cooling system drops out on the high pressure thermostat. The cooling system has reached its maximum temperature. This may be due to little or no air flow over the evaporator. ANSWER: Wait for lower ambient temperatures and activate the high pressure thermostat by pressing the reset button. Clean the evaporator gently with clean water. Set the fan speed to max. Enable the high pressure thermostat. |
| The cooling system drops out on the high pressure switch and the water gets very hot (alarm no. 5) ? |
| CAUSE: The cooling system has reached its maximum temperature and drops out on the high pressure thermostat. The maximum continuous temperature must not exceed 55°C. The legionella function will one time per week increase the temperature to 65°C. ANSWER: Replace the thermostat / sensor if defective. Activate the high pressure thermostat by pressing the reset button. |
| The safety valve on the cold water pipe is dripping ? |
| CAUSE: When water is heated it expands and the water pressure increases. The security group on the cold water pipe prevents the water from running backwards. The valve will take over the pressure by letting some water run out. The pressure in the tank should never exceed 10 Bar. ANSWER: It is normal that sometimes water comes out of the safety valve during the heating cycle. |
| The water is not hot enough ? |
| CAUSE: Operating thermostat is set too low. ANSWER: Set the operating thermostat to a higher temperature. |
| The heat pump is just started and the water do not get hot ? |
| CAUSE: It takes approx. 8 hours at 20°C air temperature to heat the water up to 55°C. At lower temperature, it takes longer time. ANSWER: Switch off the radiator / floor heating cycle, if one is installed. If necessary turn on the supplementary heating. Heating rod / boiler. |
| The heat pump does not work ? |
| CAUSE: Is there light in the panel. ANSWER: Turn on the heat pump. |
