Carrier AquaEdge 19DV Series Start-Up, Operation And Maintenance Instructions Manual page 16

be used for charging by lifting charge cylinder and gravity feed
into the evaporator. The chiller should be charged with refrigerant.
If the holding charge is not present, the chiller must be examined
for leaks. To test for leaks add a small refrigerant holding charge to
unit and pressurize with nitrogen up to 20 psig to determine and
correct the origin of the leak. Use an electronic leak detector to
check all flanges and solder joints after the chiller is pressurized. If
the 15 psig factory nitrogen charge is present, then release pres-
sure and proceed to pull a vacuum on the unit. The chiller should
BOLT SIZE
(in.)
MINIMUM
1 /
4
5 /
16
3 /
8
7 /
16
1 /
2
9 /
16
5 /
8
3 / 105
4
7 / 140
8
1 210
1 1 / 330
8
1 1 / 460
4
1 3 / 620
8
1 1 / 740
2
1 5 / 1010
8
1 3 / 1320
4
1 7 / 1630
8
2 1900
2 1 / 2180
4
2 1 / 3070
2
2 3 / 5120
4
3 6620
BOLT SIZE
(METRIC)
M4
M6
M8
M10
M12
M16
M20
M24
M27
Table 3 — Bolt Torque Requirements, Foot Pounds
SAE 2, A307 GR A
HEX HEAD
NO MARKS
LOW CARBON STEEL
MAXIMUM
4 6
8 11
13 19
21 30
32 45
46 65
65 95
150
200
300
475
660
885
1060
1450
1890
2340
2720
3120
4380
7320
9460
Table 4 — Bolt Torque Requirements, Foot Pounds (Metric Bolts)
CLASS 8.8
MINIMUM
1.75
6
14
28
48
118
230
400
580
be charged with refrigerant. Follow the leak test chiller procedure
(page 18).
If the chiller is spring isolated, keep all springs blocked in both
directions to prevent possible piping stress and damage during
the transfer of refrigerant from vessel to vessel during the leak
test process, or any time refrigerant is being transferred. Adjust
the springs when the refrigerant is in operating condition and
the water circuits are full. Any piping weights are to be sepa-
rately supported.
SAE 5
SOCKET HEAD OR HEX
WITH 3 RADIAL LINES, OR SA499
MEDIUM CARBON STEEL
MINIMUM MAXIMUM
6
13 18
22 31
35 50
53 75
75 110
105 150
175 250
265 380
410 580
545 780
770 1,100
1,020 1,460
1,220 1,750
1,670 2,390
2,180 3,110
2,930 4,190
3,150 4,500
4,550 6,500
5,000 7,140
8,460 12,090
11,040 15,770
MAXIMUM
2.5
9
20
40
70
170
330
570
830
16
SAE 8
HEX HEAD
WITH 6 RADIAL LINES OR
SA354 GR BD
MEDIUM CARBON STEEL
MINIMUM
9 9
20
32
53
80
115
160
260
415
625
985
1,380
1,840
2,200
3,020
3,930
5,280
5,670
8,200
11,350
15,710
19,900
CLASS 10.9
MINIMUM MAXIMUM
2.5
8
20
40
70
170
330
570
820
MAXIMUM
13
28
46
75
115
165
225
370
590
893
1,410
1,960
2,630
3,150
4,310
5,610
7,550
8,100
11,710
16,210
22,440
28,440
3.5
12
30
57
100
240
470
810
1175