Trane CGAH Series Owner's manual

ïi
JnRAflE* CGAH
AÍr
cooled
liquid
chilfers
j
Instaf
lation
Operation
Maintenance
To
be
used
withmanual
for
module
SMM
reference
L80lM 019E
Sizes ilS - lZO
- tiS - ZZS
-
230
-235
_
240
-250
j
GrolM oozE
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The
aim
of
this
document
for
users
is
to
set
out
the
rules
for
theinstallation,
set-up,
operation
and
maintenance
of
this
type
ofTrane
liquid
chilter.
Themaíntenance
operations
required
to insure
that
this
machine
operates
reliably
throughout
its
full
service
life
are not exhaustively
described.
only the services
of a
qualífied
technician
employed
by a reputabte
service
company
caninsure
that
themachine
operates
durably
andreliably.
warranty
is
based
on
the
general
terms
and
conditíons
of
société
Trane.
Thewarranty
is void if the equipment
is
repaired
ormodified
without
the
written
approval
ofTrane,
if
theoperating
limits
are
exceeded
orif the
controlsystem
of
the
electrical
wiring
is
modified.
Damage
due
to misuse,
lack
of maintenance
orfailure
to
comply with the manufacturer,s instructions or
recommendations
is not covered by the warranty
obligation.
,-.1
Allair-conditioning
units
are
shipped
to
theirinstallation
site
on awooden
skid.
Allmachines
reach
final
destination
completely
connected
andassembled
ready
forimmediate
start-up.
Please
check
thatthe
unithas
not
in
any
way
been
damaged
during
the
transport,
assoon
asit
arrives
on
site.lf
damage
isobserved,
oreven
onsuspicion
ofdamage.
ó Carry
out instructions
for notification
of damage
in
transport,
and
warn yourTrane
Agency.
About
thismanualz
"Caution' and 'Warnings" messages
appear at the
appropriate
place
throughout
themanual.
Your personal
safety
and
the proper
operation
of this
machine
require
that
youfollow
them
carefully.
Trane
Europe
assumes
no liability
for instalrations
or
servicing
performed
byunqualified personnel.
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n1
Acceptance
ondelivery....,. .......................:.
...............2
Unitnameplafe
r " ...'........4
lnstallation
instructions.... ................4
Waterconnection
................... ..........,5
Wiring
diagram
-Customer
electric
power
supp1y.............. .......,.....,7
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Unit
nameplate
The unit nameplate
gives
the complete
model reference
numbers.
The unit power rating is shown, and power supplies
should not deviate by more than 5% from the rated
power.
Compressormotoramperageis
shownin box
g.
The currentintensity
(shown
in amps)is the maximum
for the rated
operatingvoltage.
The customer's electricalinstallation
must be able to
withstand
thiscurrent.
lnstallation ihstructions
Foundations
No specialfoundations are required,
provided
the
supporting
surface
ísflat
and
level,
and
can
withstand
the
weight
ofthe unit.
Waterdrainhole
Insure
thereis a drainhole
wide enough
to drain
away
waterfrom the unit in the event
of shut-down
or repair.
Clearance
tnsure
there is sufficient
clearance
around
the unit to
allow maintenance
operations
to take place
without
obstruction.
Forminimum clearance
consult
thecertified
submittals,
whichareavailable
on request
from yourTrane
agency.
Handling
A (mm)
B(mm)
Maximum
weight (kg)
1500
1800
725
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TRANE
88190
GOLBEY.
FRANCE
e rnArr
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Water
to evaporator
connection
lnstall water circulation pump upstream of the
evaporator,
insuring
thatthe
evaporator
is
under
positive
pressure.
Tables
forpower supply
connections
andwaterreturn
are
shownon thecertifiedsubmittals.
Thesedrawings
areavailable
on requestfrom
your
Trane
agency.
The 114coupling
located
on the outletconnections
may
be used as the draining outlet from the plate heat
exchanger.
The
following recommendations
refer
to Figure 2.
1. Pressure
gauges:
showsenteringand leavingwater
pressure.
Stop valvesshould be provided
on water
inlets
and
outlets.
2. Vibrationdampers:
theseare suppliedas standard
with themachine,
andshould
be
placed
between
the
suppoftingfloor and the unit to prevent
vibrations
beingtransmitted
to thechilledwater
circuits.
3. Thermometers:indicate
chilledwater entering
and
leavingtemperatures.
4. Balancing
valve:
controlswaterflow
5. Stop valves: isolate
chillersand water circulating
pumpduringmaintenance
operations.
lnsure
that all chilled
water.
pipes
arefullyinsulated,
in
order
to prevent
frost
damage.lnsulate
heating
resistors
on allwater
pipes
exposedto negative
temperatures.
Minimum water capacity
Minimum volume of water in the chilledwater circuit
must be no less than 10% of the volume of water
circulating
per
hour
intheunit.
lf necessoN,
a buffer tank should be fitted.Safety
and
regulation
devices
will only operate
correctlyif there is
sufficient
water inthe system.
Figure2 - Water-to-evaporator
connection
Pressure
gauge
Balancing
valve
Watertreatment
Untreatedor insufficiently
treatedwater,
if usedin this
unit,may causescale,
slinreor algae
to accumulate
or
causeerosionandcorrosion.
Theservices
of a qualified
water treatment specialist are recommended to
determine
what treatment,if any, is advisable.
Trane
disclaims
any
liability
with
regard
todamagearising
from
theuse of untreatedor improperly
treatedwater,
or from
theuseof salineor brackish
water.
Stopvalves
Expansion
compensators
Stopvalves
Evaporator
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