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Tips for limiting frost damage to the greenhouse
If the temperature falls below freezing point, frost can create problems, such as unnecessary downtime of installations. This can be expensive. It is therefore necessary to prevent and limit this damage as much as possible. In this article you will find tips to limit frost damage.
Measures prior to a cold period
- If there is still water in pipes and/or drains, make sure it can drain off using an immersion system, or by opening a drain pipe. When the water freezes it can lead to frost damage in the form of broken frozen pipes or tubes.
- Frost can also cause damage to silos and basins. Read here how you can prevent and reduce damage to silos.
- Annual control of the mixture in the cooler of a CHP is very important. The ratio between water and refrigerant determines the temperature the cooler can withstand.
- Check the operation of the heat exchanger in the heating system annually. A deviation in the temperature recorders, stuck valves or power failures often cause malfunctions in winter. As a result, the heating water cannot be heated, or sometimes the water circulation even stops completely.
- If your system is connected to the outside air, fill it with glycol - an antifreeze - and check the degree of protection annually.
- Check that the temperature on the temperature gauge corresponds to the actual temperature. If necessary, you can place double gauges to reduce the chance of an incorrect temperature reading. Note: temperature gauges should be calibrated every year.
- The return temperature is the most important measurement to prevent frost damage. Therefore, make sure that it is monitored and alerted.
- Test the operation of the drain valve of the heat exchanger.
- Have the heating system and heat exchanger serviced annually.
Measures against frost damage during a cold period
- Make sure that the greenhouse deck and facades are free of ice as soon as possible, this will prevent windows from breaking.
- It sometimes happens that vents freeze shut. If so, do not open the vents to prevent frost damage to the window. You can set the climate computer so that the vents only open at an outside temperature of 3 to 4 degrees above zero.
- The temperature above the screen gives a clear indication of the temperature of the greenhouse deck. By means of a temperature sensor you can easily measure the temperature. This allows you to know when the vents can be opened again. Always keep a close eye on the temperature above the screen and - especially in the early mornings - do not let it drop below +4°C. This prevents the air mechanism from breaking down.
- Low temperatures can cause frost damage to the fins of air handling units. The temperature of the circulation water should therefore always be monitored by means of an alarm.
Contact form
Can't find your answer? Fill out the contact form and our specialist Joshua Reijnen will get back to you. On weekdays, even within 24 hours.
Tips for limiting frost damage to the greenhouse
If the temperature falls below freezing point, frost can create problems, such as unnecessary downtime of installations. This can be expensive. It is therefore necessary to prevent and limit this damage as much as possible. In this article you will find tips to limit frost damage.
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Measures prior to a cold period
- If there is still water in pipes and/or drains, make sure it can drain off using an immersion system, or by opening a drain pipe. When the water freezes it can lead to frost damage in the form of broken frozen pipes or tubes.
- Frost can also cause damage to silos and basins. Read here how you can prevent and reduce damage to silos.
- Annual control of the mixture in the cooler of a CHP is very important. The ratio between water and refrigerant determines the temperature the cooler can withstand.
- Check the operation of the heat exchanger in the heating system annually. A deviation in the temperature recorders, stuck valves or power failures often cause malfunctions in winter. As a result, the heating water cannot be heated, or sometimes the water circulation even stops completely.
- If your system is connected to the outside air, fill it with glycol - an antifreeze - and check the degree of protection annually.
- Check that the temperature on the temperature gauge corresponds to the actual temperature. If necessary, you can place double gauges to reduce the chance of an incorrect temperature reading. Note: temperature gauges should be calibrated every year.
- The return temperature is the most important measurement to prevent frost damage. Therefore, make sure that it is monitored and alerted.
- Test the operation of the drain valve of the heat exchanger.
- Have the heating system and heat exchanger serviced annually.
Measures against frost damage during a cold period
- Make sure that the greenhouse deck and facades are free of ice as soon as possible, this will prevent windows from breaking.
- It sometimes happens that vents freeze shut. If so, do not open the vents to prevent frost damage to the window. You can set the climate computer so that the vents only open at an outside temperature of 3 to 4 degrees above zero.
- The temperature above the screen gives a clear indication of the temperature of the greenhouse deck. By means of a temperature sensor you can easily measure the temperature. This allows you to know when the vents can be opened again. Always keep a close eye on the temperature above the screen and - especially in the early mornings - do not let it drop below +4°C. This prevents the air mechanism from breaking down.
- Low temperatures can cause frost damage to the fins of air handling units. The temperature of the circulation water should therefore always be monitored by means of an alarm.
Contact form
Can't find your answer? Fill out the contact form and our specialist Joshua Reijnen will get back to you. On weekdays, even within 24 hours.
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