Measuring Variable Speed Vent Motor Rpm - American Standard 50A65-475 Manual

Measuring Variable Speed Vent Motor RPM

Tools Required:
• A Meter That Can Read Hertz
Connect the Meter as Follows:
Control 50V65-495
CNT02871
RPM
INDUCER
GREEN LED
HERTZ
TWIN G W2 W1 B Y R
CNT02871
Connect meter to test jumper W1 and B.
Meter RPM x 30 = Vent Motor RPM
Low Speed RPM Range ............... 1500 RPM Min. – 4400 RPM Max.
High Speed RPM Range .............. 2300 RPM Min. – 5300 RPM Max.
DS2
TEST JUMPER W1
1
2
3
4
5
Control 50A61-605
CNT02536
RPM
HERTZ
G W2 W1 B O
CNT02536
Connect meter to test jumper W3 and B.
33
JUMPER W3
1
2
RPM
3
4
5
Y YLO BK R