Piston kit chart (*) signifies unit revision. (1) correct piston is supplied with the outdoor unit. (2) correct piston is supplied in the highest sales volume tested conmination indoor unit.

Understanding the Context

Piston kit chart (*) signifies unit revision. (1) correct piston is supplied with the outdoor unit. (2) correct piston is supplied in the highest sales volume tested conmination indoor unit. (5) correct piston already provided on outdoor unit (at the liquid service valve) note: Most units are shown as the root unit.

Key Insights

Btuhs and orifice sizes are equal for Take the original piston size installed in the indoor and outdoor unit and add or subtract using the information from chart 3 to determine the new piston size. Correct piston supplied with the outdoor model. Correct piston already provided in indoor coil. Purchase piston kit from distributor. Jul 4, 2023ย ยท the charts above are a r22 piston size chart and an r410a piston size chart that gives you the right piston size for each hvac system size and refrigerant type.

Final Thoughts

(1) correct piston is supplied with the outdoor unit. (2) correct piston is supplied in the highest sales volume tested. (1) correct piston is supplied with the outdoor unit. (2) correct piston is supplied in the highest sales volume tested.