Trane CenTraVac CDHF, Руководство по сборке/разборке, Страница: 29 / 36

CVHE-SVN04M-EN 29
Figure 21. Separable shell unit (end view)
3. Remove the bolts from the flanges connecting the
evaporator tube sheet and condenser shell support
(see
Figure 22, p. 29 ). Then remove the bolts from
the flanges connecting the shells.
N No otte e:: Some small shell combinations do not have
flanged connections between shells.
4. Remove the two dowel pins located in the flange on
each end of the shell tube sheet connections and lift
the condenser clear of the evaporator.
5. Reassemble the evaporator and condenser shells in
the reverse order.
6. Torque all bolts to specifications listed in Table 13,
p. 32 .
Figure 22. Separable shell unit (flange connection)
Disassembly of Chillers with
Options
Heat Recovery
Use the following steps when disassembling chillers
with auxiliary or heat recovery condenser shells to
reduce the vertical clearance required for the chiller
installation.
W WA AR RN NIIN NG G
R Re effrriig ge erra an ntt M Ma ay y B Be e U Un nd de err P Po ossiittiiv ve e
P Prre essssu urre e!!
F Fa aiillu urre e tto o ffo ollllo ow w iin nssttrru uccttiio on nss b be ello ow w cco ou ulld d rre essu ulltt iin n
a an n e ex xp pllo ossiio on n w wh hiicch h cco ou ulld d rre essu ulltt iin n d de ea atth h o orr
sse erriio ou uss iin njju urry y o orr e eq qu uiip pm me en ntt d da am ma ag ge e..
S Sy ysstte em m cco on ntta aiin nss rre effrriig ge erra an ntt a an nd d m ma ay y b be e u un nd de err
p po ossiittiiv ve e p prre essssu urre e;; ssy ysstte em m m ma ay y a allsso o cco on ntta aiin n o oiill..
R Re ecco ov ve err rre effrriig ge erra an ntt tto o rre elliie ev ve e p prre essssu urre e b be effo orre e
o op pe en niin ng g tth he e ssy ysstte em m.. S Se ee e u un niitt n na am me ep plla atte e ffo orr
rre effrriig ge erra an ntt tty yp pe e.. D Do o n no ott u usse e n no on n--a ap pp prro ov ve ed d
rre effrriig ge erra an nttss,, rre effrriig ge erra an ntt ssu ub bssttiittu utte ess,, o orr n no on n--
a ap pp prro ov ve ed d rre effrriig ge erra an ntt a ad dd diittiiv ve ess..
W WA AR RN NIIN NG G
H He ea av vy y O Ob bjje ecctt!!
F Fa aiillu urre e tto o ffo ollllo ow w iin nssttrru uccttiio on nss b be ello ow w cco ou ulld d rre essu ulltt iin n
u un niitt d drro op pp piin ng g w wh hiicch h cco ou ulld d rre essu ulltt iin n d de ea atth h o orr
sse erriio ou uss iin njju urry y,, a an nd d e eq qu uiip pm me en ntt o orr p prro op pe errtty y--o on nlly y
d da am ma ag ge e..
E En nssu urre e tth ha att a allll tth he e lliiffttiin ng g e eq qu uiip pm me en ntt u usse ed d iiss
p prro op pe errlly y rra atte ed d ffo orr tth he e w we eiig gh htt o off tth he e u un niitt b be eiin ng g
lliifftte ed d.. E Ea acch h o off tth he e cca ab blle ess ((cch ha aiin nss o orr sslliin ng gss)),, h ho oo okkss,,
a an nd d ssh ha acckklle ess u usse ed d tto o lliifftt tth he e u un niitt m mu usstt b be e cca ap pa ab blle e
o off ssu up pp po orrttiin ng g tth he e e en nttiirre e w we eiig gh htt o off tth he e u un niitt.. L Liiffttiin ng g
cca ab blle ess ((cch ha aiin nss o orr sslliin ng gss)) m ma ay y n no ott b be e o off tth he e ssa am me e
lle en ng gtth h.. A Ad djju usstt a ass n ne ecce essssa arry y ffo orr e ev ve en n u un niitt lliifftt..
1. Support the auxiliary or heat recovery condenser
with rigging using the lifting holes on the tube
sheets. Do not lift the shell; simply support it to
avoid slipping as the bolts are removed from the
connecting flanges.
2. Remove the bolts from the flanges on the
interconnecting piping and flanges connecting the
auxiliary heat recovery condenser and condenser
tube sheets.
3. Remove the bolts from the flanges on the
interconnecting piping and the flanges connecting
the shells.
4. Lift the condenser clear of the unit.
5. Reassemble the condenser in the reverse order.
Install new gaskets at the appropriate joints.
6. Torque all bolts to torque specifications listed in
Table 13, p. 32 .
D Diissa asssse em mb blly y