On the Dob, I'll mount the fan so that the airflow pulls down past the secondary, onto the primary and exhausts out the back. For vertical switches, flip the switch down for summer direction (downward airflow) or flip the. Depending on the model of your fan, it might not have a switch but a remote control or a hanging chain. Flip the switch to change the direction of the fan blades. For vertical switches, flip your switch down for downward airflow and up for upward airflow. Forward/clockwise direction is used in winter During winter, your fan should spin in a reverse direction, for upward airflow, as this will force the cold air up the ceiling and force warm air built there down into the roommore on this below. Most PCs that ive built, the fan is always placed to push air down onto the CPU heat sink, pulling cool air. For horizontal switches, flip your switch to the left for downward airflow, and the right for upward airflow. The thing that I noticed was the CPU fan was placed to pull air away from the heat sink. If you are using a dual-extrusion setup where the two fans. On the Newt, I'll mount the fan so that the airflow is up, past the mirror and out the front of the tube. I popped open my case to double check the type of CPU cooling fan I had in my X51, as I am having the whining issue. When looking at the fan so that the circular sticker with the Noctua logo is facing you, the direction of airflow is towards you and the sense of rotation is clockwise. The sticker on our fan should face the hotend, with the air flow directed toward the heat sink. But, if the airflow was from the back out the top, then the very low mounted fan on the Dob might tend to just pick up dust and blow it through the tube onto the primary and secondary. However, this would also suck moisture directly onto the mirror faster than if it blew the other way. Press button and button can adjust the air flow direction. For detail see ADJUST THE AIR FLOW DIRECTION. 4 Press button and button can adjust the air flow direction. Here's my rationale:Īt first it would seem like one would want the fan to pull air down through the tube to bring cooler ambient air onto the mirror. If enough heat is not obtained with this air conditioner, use another heating appliance in conjunction with it.

My question is on the direction of airflow. I'm mounting both fans on the backs of the scopes, behind the mirrors. I'm going to be mounting cooling fans on (2) 8' reflectors.

Fan airflow direction