Carrier PIC 5+, Installation, Operation And Maintenance Instructions

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Fig 39 : Digital Vacuum gage
5.1.3 - Remove shipping packaging
After receipt remove any packaging material from the unit, VFD, and control panels.
5.1.4
– Lubrication and purge circuit valves
Check if the motorized valves on lubrication circuit are open and all solenoid valves and service valves are open
on purging circuit.
5.1.5 - Tighten all gasketed joints
Gaskets normally relax by the time the chiller arrives at the jobsite. Tighten all gasketed joints to ensure a leak-
tight chiller (does not apply to refrigerant joints covered by factory insulation). Gasketed joints (excluding O-rings)
may include joints at some or all of the following:
• Waterbox covers
• Compressor first suction elbow flanges (at compressor and at the cooler)
• Compressor secondary suction flanges (at compressor and low side float chamber)
• Compressor discharge flange
• Cooler inlet line spacer (both sides)
• Envelope control flange (both sides of valve)
• ICP piping flange
• High and low side float chamber covers
See Tables 16
for bolt torque requirements.
BOLT
SIZE
CLASS 8.8,
SAE 5, SA499(N•m)
CLASS10.9, SAE 8, SA354 GR
BD(N•m)
SOCKET HEAD OR HEX
WITH 3 RADIAL LINES
MEDIUM CARBON STEEL
HEX HEAD
WITH 6 RADIAL LINES
MEDIUM CARBON STEEL
mm Minimum Maximum Set Minimum Maximum Set
6 8.1 12.2 10±1 12.2 17.6 14±1
8 17.6 24.4 20±1 27.1 38 34±1
10 29.8 42 34±1 43.4 62.3 47±1
7/16’’
47.4 67.8 61±7 71.8 101.6 81±7
12 71.8 101.6 81±7 108.4 155.8 122±7
14 101.6 149.1 122±14 155.8 223.6 176±14
16 142.3 203.3 163±14 216.8 304.9 244±14
18,
20 237.1 388.8 285±34 352.3 501.4 393±34
22 359.1 514.9 407±34 562.3 799.5 610±34
24 555.6 785.9 597±34 846.9 1210 894±34
27 738.5 1056.9 786±34 1334.7 1910.6 1382±34
30 1043.4 1490.5 1084±34 1870 2655.8 1911±34