Trane CenTraVac CDHF, Руководство по сборке/разборке, Страница: 32 / 36

32 CVHE-SVN04M-EN
13. Reinstall all other chiller components which were
removed. Reconnect the inlet vane linkages.
14. Torque all bolts to specifications listed in Table 13,
p. 32 .
Table 13. Bolt torques
Non-gasket Joints Bolt Torques
Bolt Size (in) Torque (ft·lb)
1/2 70
5/8
150
3/4
250
All Other Metal Joints (O-Ring Joins) Shall Use the Following
Torques
Bolt Size (in)
Torque (ft·lb)
Min. Max
1/4 5 7
5/16
11 15
3/8
22 27
1/2
55 75
5/8
120 165
3/4
200 280
1 400 550
All Joints with Flat Elastomeric Gaskets Shall Use the Following
Bolt Torque
Bolt Size (in)
Torque (ft·lb)
Min. Max
5/16
8 12
3/8
12 18
1/2
33 50
5/8
70 90
3/4
105 155
15. Reconnect the previously cut compressor/motor oil
supply and return lines and the motor cooling lines
using the factory-supplied couplings.
Brazing
W WA AR RN NIIN NG G
E Ex xp pllo ossiio on n H Ha azza arrd d a an nd d D De ea ad dlly y G Ga asse ess!!
F Fa aiillu urre e tto o ffo ollllo ow w a allll p prro op pe err ssa affe e rre effrriig ge erra an ntt
h ha an nd dlliin ng g p prra accttiicce ess cco ou ulld d rre essu ulltt iin n d de ea atth h o orr sse erriio ou uss
iin njju urry y..
N Ne ev ve err sso olld de err,, b brra azze e o orr w we elld d o on n rre effrriig ge erra an ntt lliin ne ess o orr
a an ny y u un niitt cco om mp po on ne en nttss tth ha att a arre e a ab bo ov ve e a attm mo ossp ph he erriicc
p prre essssu urre e o orr w wh he erre e rre effrriig ge erra an ntt m ma ay y b be e p prre esse en ntt..
A Allw wa ay yss rre em mo ov ve e rre effrriig ge erra an ntt b by y ffo ollllo ow wiin ng g tth he e
g gu uiid de elliin ne ess e esstta ab blliissh he ed d b by y tth he e E EP PA A F Fe ed de erra all C Clle ea an n
A Aiirr A Acctt o orr o otth he err sstta atte e o orr llo occa all cco od de ess a ass a ap pp prro op prriia atte e..
A Afftte err rre effrriig ge erra an ntt rre em mo ov va all,, u usse e d drry y n niittrro og ge en n tto o
b brriin ng g ssy ysstte em m b ba acckk tto o a attm mo ossp ph he erriicc p prre essssu urre e b be effo orre e
o op pe en niin ng g ssy ysstte em m ffo orr rre ep pa aiirrss.. M Miix xttu urre ess o off
rre effrriig ge erra an nttss a an nd d a aiirr u un nd de err p prre essssu urre e m ma ay y b be ecco om me e
cco om mb bu ussttiib blle e iin n tth he e p prre esse en ncce e o off a an n iig gn niittiio on n sso ou urrcce e
lle ea ad diin ng g tto o a an n e ex xp pllo ossiio on n.. E Ex xcce essssiiv ve e h he ea att ffrro om m
sso olld de erriin ng g,, b brra azziin ng g o orr w we elld diin ng g w wiitth h rre effrriig ge erra an ntt
v va ap po orrss p prre esse en ntt cca an n ffo orrm m h hiig gh hlly y tto ox xiicc g ga asse ess a an nd d
e ex xttrre em me elly y cco orrrro ossiiv ve e a acciid dss..
Except as noted in the following, braze with the
following filler metals:
• Braze all copper-to-copper joints with A.W.S. BcuP-
6 filler metal.
• Braze all copper-to-brass joints with A.W.S. BcuP-6
filler metal using white or black brazing flux.
• Braze all other joints with A.W.S. Bag-28 filler
metal.
Bleed dry nitrogen through the lines while brazing to
prevent the formation of oxides which can contaminate
the oil and refrigerant systems.
N No otte e:: Use silver soldering with 96% Sn-4% Ag (for
example, J.W. Harris Co. Stay Brite ® ) to replace
brazing when the heat from brazing would be
detrimental to the immediate or nearby parts.
E Ex xa am mp plle ess::
1. Joints next to threaded joints in which the copper
or brass threads become too soft and/or Loctite ®
loses its sealing capability due to excess heat.
2. Joints next to valves in which the valves cannot be
taken apart or are not recommended for brazing.
Final Installation Procedures
After the chiller has been moved to the equipment
room and reassembled under Trane supervision, leak
testing, and evacuation can be performed by Trane or
under Trane supervision. Upon verification of leak
tightness, installation can proceed for unit piping,
wiring, etc. After installation has been completed, fill
out CTV-ADF001*-EN (
CenTraVac ™ Installation
Completion Check Sheet and Request for Trane
Service
) to schedule the startup; the chiller
R Re ea asssse em mb blly y