According to ACR, The NADCA Standard, coil cleaning should be performed:
Posted: Mon Jan 30, 2023 7:26 am
According to ACR, The NADCA Standard, coil cleaning should be performed:
A. on the upstream side only.
B. on both the upstream and downstream sides.
C. on the downstream side only.
D. when the system is running.
A. on the upstream side only.
B. on both the upstream and downstream sides.
C. on the downstream side only.
D. when the system is running.