|
| |
Figure 4-21. Transformer. rectifier. and pressure switches.
4-57. Rectifier
(1) Install rectifier and two cap screws.
(2) Connect leads and install capacitor.
a. Removal. Remove rectifier as follows:
( 1 ) R e f e r t o p a r a g r a p h 4 - 5 0 a n d r e m o te
( 3 ) R e f e r t o p a r a g r a p h 4 - 5 4 a n d i n s t a ll
junction box.
junction box.
(2) Refer to figure
4-21 and remote filter
4-58. High and Low Presure Cutout Switches
capacitor. Disconnect leads.
a. Gerteral. The high and low pressure cutout
(3) Remove two cap screws and remove
switches cannot be removed without opening the
rectifier.
refrigeration
system. Electrical tests should be
b. Testing, Apply a 30 volt ac source of power
made with the switches installed.
across the no. 1 and 3 terminals. Check for 24 to 28
b. Testing. Test switches as follows:
Volt dc output across terminals 2 and 4. Replace
( 1 ) R e f e r t o p a r a g r a p h 4 - 5 0 a n d r e m o te
rectifier if defective.
junction box.
c. installation. Refer to figure 4-21 and install
(2) Disconnect leads and test for continuity
rectifier as follows:
4-32
|
