Stub kits are available to field fabricate quick connect line sets
or to connect mix-matched units and coils.
Unit should be installed only with approved system combina-
tions (indoor coil/outdoor unit) specified in Technical Guide.
See Application Data,"General Piping Recommendations and
Refrigerant Line Length," for vapor and liquid line sizing, cal-
culation of liquid line pressure loss or gain, determination of
vapor line velocity, elevation limitations, orifice corrections,
system charging, traps, etc.
Total line lengths are limited to 75 feet due to the storage
capacity of the accumulator. Systems with total line lengths
over 50 feet must be provided with a low voltage start kit.
Elevation differences are limited to:
Indoor Above Outdoor........50 ft.
Outdoor Above Indoor........50 ft.
Systems with liquid line pressure loss or gain greater than 11
psi must be provided with corrected orifice size.
Inter-connecting refrigerant lines should be sized to match the
factory supplied fittings. Liquid lines must NEVER be increased
or decreased. Vapor lines may be increased one size to mini-
mize pressure drop as long as a velocity of at least 1000 feet
per minute is maintained.
Additional charge is required for inter-connecting piping greater
than 15 feet for sweat units and some indoor coil matches.
The lines should be installed so that they will not obstruct
service access to the coil, air handling system or filter. Install
the lines with as few bends as possible. Care must be taken
not to damage the couplings or kink the tubing. Care must also
be used to isolate the refrigerant lines to minimize noise
transmission from the equipment to the structure.
Tape and suspend the refrigerant lines as shown. DO NOT
allow metal-to-metal contact.
OUTDOOR UNIT E1FD / E9FD
018
024
030 036
042
048
060
UNIT ORIFICE(S)
1
55, 57
59, 61
67, 69
75
81
84, 87
99
FACTORY R-22
CHARGE, LBS. OZ.
SWEAT
4 - 11
5 - 15
6 - 6
6 - 9
7 - 6
7 - 9
15 - 5
QUICK
4 - 1
5 - 6
5 - 11
5 - 15
6 - 12
6 - 15
14 - 10
INDOOR COIL
COIL
ORIFICE2
SYSTEM O ADDITIONAL CHARGE, OZ.
G3HC / G1FC018
55
55 + 2
59 + 0
-
-
-
-
-
G3HC / G1FC024
61
57 + 14
59 + 0
-
-
-
-
-
G3HC / G1FC030
69
61 + 16
69 + 0
-
-
-
-
G3HC / G1FC036
81
-
-
69 + 4
75 + 0
-
-
-
G3HC / G1FC042
78
-
-
-
75 + 13
81 + 3
-
-
G3HC / G1FC048
90
-
-
-
-
81 + 11
84 + 0
-
G3HC / G1FC060
96
-
-
-
-
-
87 + 19
99 + 0
G3US018
55
55 + 2
59 + 0
-
-
-
-
-
G3UA024
59
55 + 14
59 + 0
-
-
-
-
-
G3UA030
65
-
61 + 16
-
-
-
-
-
G3UA036
69
-
61 + 16
69 + 4
75 + 0
-
-
-
G3UA037
69
-
61 + 16
69 + 4
75 + 0
-
-
-
G3UA048
87
-
-
-
-
81 + 11
84 + 0
-
G3UA060
96
-
-
-
-
-
87 + 19
99 + 0
G3UA061
96
-
-
-
-
-
87 + 19
99 + 0
G2UT024
-
-
+ 0
-
-
-
-
-
G2UT030
-
-
+16
-
-
-
-
-
G2UT036
-
-
+16
+4
+0
-
-
-
G2UT037
-
-
+16
+4
+0
-
-
-
G2UT048
-
-
-
-
-
+ 11
+ 0
-
G2UT060
-
-
-
-
-
-
+ 19
-
G2UT061
-
-
-
-
-
-
+ 19
+ 0
G3CN030
65
57 + 14
61 + 16
69 + 0
-
-
-
-
G3CN042
73
-
-
-
75 + 13
81 + 3
-
-
G3CN060
87
-
-
-
-
-
87 + 19
99 + 0
F1RP / F1FP018
53
55 + 0
-
-
-
-
-
-
F1RP / F1FP024
61
57 + 6
61 + 0
-
-
-
-
-
F1RP / F1FP030
65
-
61 + 0
67 + 2
-
-
-
-
F1RP / F1FP036
75
-
-
-
75 + 0
-
-
-
F1RP / F1FP042
78
-
-
-
75 + 2
78 + 0
-
-
1
These orfices are packed in the instruction/warranty packet of each outdoor unit.
2
These orifices are factory-mounted in the flow control device of each indoor coil.
NOTE: Orifices in ( ) must be ordered from the Parts Department.
TABLE 4- ADDITIONAL R-22 CHARGE/ORIFICE SIZE
LIQUID
LINE
TAPE
SHEET
METAL
HANGER
INSULATED
VAPOR LINE
FIGURE 6 - TUBING HANGER
515.26-N5Y
6
Unitary Products Group
