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2. Disconnect fan motor wires from fan speed switch or system switch.
3. Apply "live" test cord probes on black wire and common terminal of capacitor. Motor
should
run at high speed.
4. Apply "live" test cord probes on red wire and common terminal of capacitor. Motor should run at low
speed.
5. Apply "live" test cord probes on each of the remaining wires from the speed switch or system switch to
test intermediate speeds.
9.4 Capacitor
A run capacitor is wired across the auxiliary and main winding of a single phase permanent split
capacitor motor such as the compressor and fan motor. A single capacitor can be used for each motor or
a dual rated capacitor can be used for both.
The capacitor's primary function is to reduce the line current while greatly improving the torque
characteristics of a motor. The capacitor also reduces the line current to the motor by improving the
power factor of the
load. Run capacitor hook-up
line side of the
capacitor is marked with a red
dot and is wired to
the line side of the circuit.
Capacitor test:
1. Remove capacitor from unit.
2. Check for visual damage such as bulges, cracks, or leaks
3. For dual rated, apply an ohmmeter lead to common (C) terminal and the other probe to the
compressor (HERM) terminal. A satisfactory capacitor will cause a deflection on the pointer, and
Summary of Contents for PH Series
Page 1: ...MIDEA 50Hz PORTABLE PH SERIES ...
Page 11: ...9 4 Dimension Capacity Btu h W mm H mm D mm small body 329 318 615 big body 345 355 703 H W D ...
Page 13: ...11 6 Wiring Diagram MPPHA 05CRN7 QB6 MPPH 07CRN7 QB6G1 MPPH 08CRN7 QB6 MPPH 09CRN7 QB6 ...
Page 14: ...12 MPPHA 07CRN7 QB6 MPPHB 08CRN7 QB6 N MPPHB 09CRN7 QB6 N ...
Page 20: ...18 2 Use bolts to fasten the window sliders once they are adjusted to the Proper length ...
