Neddy
03-11-2011, 07:20 PM
Hi Guys,
This unit iced up last week and tripped on frost protection. The call was attented my work mate. He melted the ice and ran it up but found nothing wrong.
Today I got the same call, water on the floor and unit on frost protection alarm.
The Model is a V17X-EZR and the supply air is ducted from the top into the next room and it supplies about eight 600x600 grills with a lot of ducting.
The air flow is quiet poor from the grills.
In the settings the fan speed is set to 75%. Fan speed is set to be reduced by 25% when Dehumidification is activated.Airedale say this it to drag more moisture out of the air. The frost protection is activated when the senor on the evaporator reads a low temperature. I changed the Dehumidification reduced fan speed to 0% as I believe the coil temperature was getting too low due to the reduced air flow on Dehumidification and the coil was icing up.
Airedale say the unit was commissioned at 75% fan speed. My question is, can I put it to 100% to more air flow?
Also this unit has one airflow switch for the fan(Which I wanted to test) and the filters run on a timer and then alarm.
I blocked the filters with cardboard. The airflow switch is set to 1.5 mbar. I adjusted it to 3.5 Mbar and the contacts disconnected. I removed the cardboard but the contacts did not make until I moved the dial to 1.5Mbar.
Can anyone explain what I doing wrong?
This unit iced up last week and tripped on frost protection. The call was attented my work mate. He melted the ice and ran it up but found nothing wrong.
Today I got the same call, water on the floor and unit on frost protection alarm.
The Model is a V17X-EZR and the supply air is ducted from the top into the next room and it supplies about eight 600x600 grills with a lot of ducting.
The air flow is quiet poor from the grills.
In the settings the fan speed is set to 75%. Fan speed is set to be reduced by 25% when Dehumidification is activated.Airedale say this it to drag more moisture out of the air. The frost protection is activated when the senor on the evaporator reads a low temperature. I changed the Dehumidification reduced fan speed to 0% as I believe the coil temperature was getting too low due to the reduced air flow on Dehumidification and the coil was icing up.
Airedale say the unit was commissioned at 75% fan speed. My question is, can I put it to 100% to more air flow?
Also this unit has one airflow switch for the fan(Which I wanted to test) and the filters run on a timer and then alarm.
I blocked the filters with cardboard. The airflow switch is set to 1.5 mbar. I adjusted it to 3.5 Mbar and the contacts disconnected. I removed the cardboard but the contacts did not make until I moved the dial to 1.5Mbar.
Can anyone explain what I doing wrong?