Instruction Manual

ClimaCool Engineering Guide Specifications
34
Modular Chiller "Y" or Basket
S
trainer
s
The FLEX module strainers shall be designed for a fl ow of
_
__GPM, with a design pressure loss during maximum fl ow
of 1.5 PSI. Strainers shall be
p
rovided with a minimum 60
m
esh / 234 micron screens for s
y
stem
p
rotection. Pressure
construction of the strainer housing, fl anges and nipples shall
a
ll be carbon steel. Strainer housing shall be rated for eithe
r
200 PSI or 285 PSI. The strainers shall be installed on the
c
o
ndenser water and chilled water inlets f
o
r each bank
of
chillers.
Pressure Differential Alarm Packa
g
e
(
C
S S
eries only
)
Each Strainer shall be e
q
ui
pp
ed with a Pressure Differen-
tial Alarm
(
PDA
)
and Automatic Timer Flush. The PDA is
constructed of a fi berglass NEMA 4X enclosure, consisting
of a pressure differential switch, gauge, fl ashing, and audible
a
larm si
g
nals. The controller shall be ca
p
able of remote
m
onitoring via two additional auxiliar
y
contacts. Ad
j
ustable
d
ifferential pressure switch, ranging from 1-15 PSI, factor
y
s
et
@
7 PSI
.
P
DA to
p
rovide followin
g
functions
:
•
C
ontinuousl
y
monitor the inlet and outlet s
y
ste
m
p
ressure differential. When the fi lter screen becomes
d
irt
y
, a
g
au
g
e-switch will tri
gg
er an audible siren and
a
visual fl ashing alarm.
•
Alarms shall be designed to alert maintenance
p
ersonnel that the strainer screen needs to be
r
emoved from the strainer housin
g
for cleanin
g.
Automatic Flush
S
ystem Feature
(
C
S S
eries only
)
The automatic fl ush valve shall be constructed with a 1-1/2”
s
tainless steel motorized ball valve with an open/close indica
-
tor. The controller is to be equipped with a programmable
time-based controller along with a manual control switch
.
A
u
t
o
m
a
ti
c
Fl
us
h
S
tr
a
in
e
r
&
Tim
e
r F
u
n
c
ti
o
n
s
(
C
S S
eries onl
y)
:
•
D
esign shall insure particulates which fall down to th
e
d
ebris reservoir are automaticall
y
fl ushed.
•
Timer control for the valve package is to be housed
inside a watertight control box, attached to the valve
.
•
D
esi
g
n shall
p
ermit end-user to sim
p
l
y
dial in the fl ush
f
requenc
y
and fl ush duration of the valve
.
•
The valve shall also be equipped with a manual fl ush
c
ontrol switch that can be used to manuall
y
fl ush the
s
trainer or drain the strainer before removing the screen
.
C
ondenser – Water
C
oole
d
Each module will have a dual circuit brazed plate hea
t
exchanger. The heat exchanger will be designed and con-
llahstI.sedocEMSAro/dnaLUhtiwecnadroccanidetcurts
.setalpleetssselniats613dezarbreppochtiwdetcurtsnoceb
T
he condenser shall have two refrigerant circuits, one water-
s
ide circuit and shall incorporate a counter fl ow heat transfer
p
attern to increase heat transfer effi cienc
y
. The condenser
w
ill have a refrigerant design side working pressure of 400
P
SI and a water side design working pressure of 285 PSI.
In order to ensure proper fl ow protection, a strainer with a
minimum of 60 mesh screen must be installed prior to the
co
ndenser in the fi eld.
E
va
p
orato
r
Each module’s eva
p
orator will be a dual circuit brazed
p
late
heat exchanger. The evaporator shall be designed and con-
llahstI.sedocEMSAro/dnaLUhtiwecnadroccanidetcurts
.setalpleetssselniats613dezarbreppochtiwdetcurtsnoceb
T
he heat exchanger shall have two refrigerant circuits, one
w
aterside circuit and shall incor
p
orate a counter fl ow heat
t
rans
f
er pattern to increase heat trans
f
er e
f
fi cienc
y
. The
evaporator will have a refrigerant design side working pres-
s
ure of 400 PSI, a water side design working pressure of 285
P
SI and shall be insulated with 3/4” closed cell foam rubbe
r
having a “K” factor of 0.26. In order to ensure proper fl ow
and protection, a minimum of a 60 mesh strainer must be
installed prior to the chiller water evaporator in the fi eld
.
C
om
p
ressor
s
-rictnaregirfertnednepedniowtniatnocllahseludomhcaE
.
y
cnadnuderrofrosserpmocllorcsnwos’tihtiwhcae,stiu
c
Each com
p
ressor shall be mounted with rubber isolation,
each shall include compressor overload protection, high
d
ischarge pressure and low suction pressure cutouts
.
R
efri
g
erant Circuits - Refri
g
erant Flexibl
e
The dual refrigerant circuits must be designed to compl
y
with
A
SHRAE 90.1 Effi cienc
y
Guidelines. Each circuit operates
using HCFC R-22 as standard, and must be readil
y
convert-
ible to HFC R407C at an
y p
oint durin
g
the lifetime of the
p
roduct without an
y
component changes.
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