26
SERVICE HANDBOOK
Table 3-6: Facts about Capacitors
Capacitor Type
Compressor
Motor Type
Characteristics
Run Capacitor
CSR and PSC
•
Permanently connected in series with start
winding
•
Excessive MFD increases running current
and motor temperature
•
Fused capacitors not recommended for CSR
and not required for PSC motors
•
Capacitor rated voltage must be equal to
more than that specified
•
Capacitor MFD should not exceed limits
shown in
Table 3-5 on page 25
Identification of Terminal Pins
There are several different types of terminals used on the various models of Tecumseh compres-
sors. Tecumseh terminal pins may be considered in the following order: Common, Start, Run. To
identify the terminal pins, we read the order exactly as we would read a book, that is, we start at
the top left hand corner and read across the first “line” from left to right. We then drop down to
the second line starting at the left and read across. Some compressor models have terminal pin
identification embossed on the protective terminal cover. While the protective terminal cover may
identify the terminal pins, it is primarily designed to reduce the risk of serious injury or death from
electrocution or terminal venting with ignition. Never energize the system unless the protective
terminal cover is securely fastened.
Push-On Terminal Pins
P, R, AP & AR Models (1953 to phaseout)
T & AT Models
AZ & AE (Refrigeration Models)
TH, TP, TW
Spade Type Terminal Pins
AU & AR26 Air Conditioning Models
AE Air Conditioning Models
AW, AB, AJ, RK, RG and HG
Internal Thermostat Terminal Pins
Many CL Models
t
Common
Run
Star t
Common
Run
Star t
Common
Run
Star
Common
Star t
Run
Spade Type Terminal Pins
S & C Models (1955 to phaseout)
AK & VS Models
Spade Type Terminal Pins
AV Models
t
Common
Run
Star t
Common
Run
Star t
Common
Run
Star
Common
Star t
Run
Common
Common
Start
Start
Run
Run
t
Common
Run
Star t
Common
Run
Star t
Common
Run
Star
Common
Star t
Run
Common
Common
Start
Start
Run
Run
t
Common
Run
Star t
Common
Run
Star t
Common
Run
Star
Common
Star t
Run
Common
Start
Run
Spade Type Terminal Pins
RN Models
Содержание AH5540E
Страница 1: ...Hermetic Compressor Service Handbook Wholesale Distribution North America...
Страница 2: ......
Страница 3: ...Hermetic Compressor Service Handbook Ann Arbor MI 48108 REV 3 11...
Страница 4: ......
Страница 8: ......
Страница 9: ...Chapter 1 General Service Safety Precautions...
Страница 16: ......
Страница 17: ...Chapter 2 Model and Application...
Страница 22: ......
Страница 23: ...Chapter 3 Compressor Motor and Component...
Страница 36: ......
Страница 37: ...Chapter 4 Servicing...
Страница 38: ...30 SERVICE HANDBOOK...
Страница 79: ...71...
Страница 80: ......
Страница 81: ...Chapter 5 Installation and Replacement...
Страница 96: ......
Страница 97: ...Liquid refrigerant migration to compressor FIGURE 6 1 Chapter 6 Operation...
Страница 108: ......
Страница 109: ...Appendix...
Страница 113: ...105 Reciprocating Compressor FIGURE A 2 Internal view of typical air conditioning compressor...
Страница 118: ...110 SERVICE HANDBOOK Notes...
Страница 119: ......