ClimateMaster Tranquility Digital DXM2 - Checking Compressors

15
Tranquility
®
Digital (DXM2)—Troubleshooting Guide
Rev.: 10 March, 2015
www.climatemaster.com
Checking Compressors
A-D
Compressor
C-S
Ohms
C-R
Ohms
Unit
ZPS20 1.64 1.30 TZ024, TE026 TEP/TES026
ZPS30 1.52 0.88 TZ036, TE038 TEP/TES038
ZPS40 1.86 0.52 TZ048, TE049 TEP/TES049
ZPS51 1.68 0.41 TZ060, TE064 TEP/TES064
ZPS60 1.85 0.34 TE072
ZPS26 1.90 1.02 TZ030
ZPS35 1.55 0.62 TZ042
Note: Readings are good ± 7%
Note: Reading S-R = C-S + C-R Readings
Example: ZPS20 S-R = 2.94 Ohms
Compressor Ohms Table
Overload opens
R
S
C
Suction
Line
R
S
C
R
S
C
R
S
C
Compressor with Open Internal Overload
If both R and S are open to
common, Internal overload
is open.
Overload opens
R
S
C
Suction
Line
R
S
C
R
S
C
R
S
C
Open run winding (innite)
resistance. Start winding shows
measurable resistance.
Overload opens
R
S
C
Suction
Line
R
S
C
R
S
C
R
S
C
Note: If not, O resistance will
be close to it.
C-S and C-R will have high
resistance above 3 ohms.
Overload opens
R
S
C
Suction
Line
R
S
C
R
S
C
R
S
C
Check for ground by placing
one lead on suction line.
Compressor with Open Run Winding
Compressor with Shorted Windings Compressor Winding Shorted to Ground