Carrier 50K - Manual (Page 2)

50K
INSTALLATION
Carrier
TABLE 1
Unit Circuit No
Compressor
Evaporator Coil
Liquid Line
Connection R-22
Pounds Model Location
50K8 (1 Circuit) 6D48 - - 10
50K12
Single Compressor (1 Circuit) 6D68 - - 10
50K16
Single Compressor (1 Circuit) 6D75
_
- 15
50K16 No. 1 6D48 Left Side Right End 10
2 Compressor No. 2 6D48 Right Side Left End 10
TABLE 2
Recommended Line Sizes
Linear Feet Piping
20 40 60
Discharge Line Liquid Line Liquid Hot Liquid Hot Liquid Hot
Unit Connection Connection Line Gas Line Gas Line Gas
50K8 7/8 1/2 1/2 7/8 1/2 7/8 1/2 7/8
50K12
Single Compressor 7/8 5/8 5/8 7/8 5/8 1-1/8 3/4 1-1/8
50K16 (Ea. Circuit)
2 Compressor 7/8 1/2 1/2 7/8 1/2 7/8 1/2 7/8
50K16
Single Compressor 1-1/8 5/8 5/8 1-1/8 3/4 1-1/8 3/4 1-3/8
REFRIGERANT CHARGE
The unit will be shipped with a 2 lb. holding charge
of Refrigerant 22. In the standard installation,
Refrigerant 22 will be used. However, on special
applications. Refrigerant 500 may be used. Con­
sult your Application Engineering Data for informa­
tion concerning the use of Refrigerant 500. When
Refrigerant 500 is used, change the expansion valve
to the one shown in Table 3.
REFRIGERANT CHARGE QUANTITY
During operation on Refrigerant 22 the base unit
alone requires the number of pounds shown in Table 1.
To this, add the needs for the refrigerant lines, con­
densers, and receivers (if used). Stamp the number
of pounds used in the blank space provided on the
nameplate.
TABLE 3 - VALVES FOR R-500 SERVICE
Unit Sporlaii Valve
50K8 PDE6G
50K12
Single Compressor
PDE9G
50K16
Single Compressor
PDE13G
50K16 PDE6G
2 Compressor (2) required
DUAL PRESSURESTATS
Adjust the pressurestats according to pressure shown
in Table 4.