Recold JT Series CoolingTower
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Recold JC Series CoolingTower Schematic
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3
Access Doors
Near Side
Sump
gallons
note 4
Dimensions inches
Far Side
Model
A
80
96
1153⁄4
1391⁄2
1391⁄2
1721⁄4
1721⁄4
1841⁄4
208
B
76
76
77
C note 2
31
37
D
84
H
—
J
6
6
6
6
6
6
6
8
8
8
10
10
10
K
53
65
763⁄4
92
92
115
115
115
1391⁄4
1391⁄4
1391⁄2
1641⁄2
188
R
611⁄4
61
65
67
67
71
71
78
78
78
102
102
102
Top
Bottom
Top
—
—
1
Bottom
—
—
JT1830
JT2140
JT2550 - JT2565
JT3175 - JT3185
JT31100
JT37110 - JT37130
JT37140
JT40160 - JT40180
JT40215 - JT40240
JT40265
1
1
1
1
1
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
2
2
2
43
64
95
102
124
144
144
1801⁄4
1801⁄4
192
217
217
225
248
273
—
451⁄4
551⁄2
551⁄2
667⁄8
667⁄8
931⁄4
933⁄8
933⁄8
1001⁄2
1001⁄2
1001⁄2
511⁄4
1
1
1
1
801⁄4
801⁄4
921⁄2
921⁄2
981⁄2
981⁄2
981⁄2
1181⁄2
1181⁄2
1181⁄2
51
51
1
1
2
2
163
163
248
248
374
454
454
748
880
1012
713⁄4
713⁄4
841⁄2
961⁄2
961⁄2
80
1
2
2
2
2
2
2
1 note 1
1 note 1
1 note 1
2 note 1
2 note 1
2 note 1
208
221
2451⁄2
268
JT49290 - JT49310
JT49340 - JT49360
JT49390 - JT49415
104
128
Note
4. Water level at top of overflow stand pipe
1 An additional bottom access door is installed on inlet
connection end.
5 Discharge duct flange is C minus 3" and K minus 3".
2 Overall width of unit at base rail is C plus 1".
3 Maximum overall height at blower (fan) section is 118".
A
C
ELIMINATOR
ACCESS
INLET
K
ACCESS
DOOR
OUTLET
SPRAY HEADER
CLEANOUT
B
R
EXTERNAL
FLOAT BOX
J
MAKEUP
7
/8" MOUNTING
12"
H
12"
2"
HOLE (6)
DRAIN AND
OVERFLOW
2" LIFTING
HOLE (4)
D
Model
JT
1830 2140 2550 2565 3175 3185 31100 37100 37130 37140 40160 40180 40215 40240 40265 49290 49310 49340 49360 49390 49415
Nominal Tons†
Supply FPT
Drain FPT
Inlet MPT
Outlet MPT
Fan Diamter
Fan RPM
26
36
47
57
73
83
92
113
1
130
1
142
1
164
11⁄4
3
178
11⁄4
3
195
11⁄4
3
212
11⁄4
3
232
11⁄4
3
264
11⁄4
5
280
11⁄4
5
300
11⁄4
5
325
11⁄4
5
340
11⁄4
5
364
11⁄4
5
1
1
1
1
3
3
3
⁄
2
⁄2
⁄2
⁄2
⁄4
⁄4
⁄4
3
21⁄2
4
3
3
3
3
3
4
3
4
3
4
3
3
3
3
(2) 3 (2) 4 (2) 4 (2) 4 (2) 4 (2) 4 (2) 4 (2) 4 (2) 4 (2) 5 (2) 5 (2) 5 (2) 6 (2) 6 (2) 6
4
6
6
6
6
6
6
6
6
6
6
6
6
6
8
8
8
8
8
8
18
625
21
600
25
430
25
500
31
350
31
400
31
37
37
37
40
40
40
40
40
49
49
49
49
49
49
462
360
410
445
385
415
385
415
430
243
267
246
271
253
278
Fan CFM
Motor hp* (0"=1⁄4" SP)
5880 8060 10800 13300 15700 17100 20200 24000 27300 29700 39100 42500 45100 47200 50300 55500 61000 64500 71000 74200 84500
7.5 10 10 15 20 20 25 20 25 30 25 30 30 40 40 50
2
3
3
5
5
Motor Frame
145T 182T 184T 184T 213T 215T 215T 254T 254T 256T 284T 256T 284T 286T 284T 284T 286T 286T 324T 324T 326T
853 1142 1597 1616 2504 2528 2557 3906 3943 3988 5133 5194 5579 5675 5709 7886 7916 8486 8624 8978 9028
Shipping Weight lb
Operating Weight lb** 1210 1675 2390 2410 3870 3900 3915 5980 6010 6060 8250 8310 9365 9460 9500 14120 14150 15820 16000 17410 17460
* For static pressure from 1⁄4" to 1⁄2" ESP, use next size larger motor.
** At normal operating water level in cold water basin.
Note: All piping connections are for standard GPM. Consult Recold for other
† Nominal tons are based upon 95°F HW, 85°F CW, 78°F WB and 3
GPM/ton. The UPDATE web-based selection software provides JT model
recommendations based on specific design requirements.
flow rates.
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Recold JT Series CoolingTower Accessories
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4
CAPACITY CONTROLS
VIBRATION ISOLATORS
Dual Fan Motors—The dual fan motor package is available
as a proven energy saving capacity control option. It
consists of furnishing a high efficiency motor, a 1200 RPM,
low speed motor, two sets of drives and belts, extended
fan shaft and motor bases on opposite sides of the blower.
A UL control-starter panel is available as a completely wired
package for one point connection.
Spring type vibration isolator rails may be supplied for field
installation—some units will require base frame structural
support.
ELECTRONIC WATER LEVEL CONTROL
The electronic water level control package provides a
constant and accurate means of monitoring water level in
the unit. For this reason, it is often recommended for those
installations which require year round operation in low
ambient conditions.
Variable Speed Drive—A Variable Speed Drive
automatically minimize the tower’s noise level during
periods of reduced load and/or reduced ambient
temperature without sacrificing the system’s ability to
maintain a constant cold water temperature. This is a
relatively inexpensive solution, and can pay for itself quickly
in reduced energy costs.
The complete package includes an electric float switch with
stilling chamber which is factory installed in the pan section
of the unit. An electric solenoid valve for water make-up
is shipped loose for remote installation. All wiring must be
provided in the field by others.
Electric Damper Controls—An electric damper control
package is available as an accessory for modulating the
internal damper system. A proportional solid state actuator
is factory mounted below the fan scroll and attached to
the damper shaft by connecting linkage. A sensing bulb
connected to the actuator by a capillary tube is normally
mounted in the unit pan water basin for monitoring the
system. However, when specified, a pressure control may
be supplied for field mounting to allow direct head pressure
control. An end switch located inside the motor actuator
may be adjusted to cycle the fan motor on for pressure rise
and off when dampers close.
PAN HEATER
The use of a remote sump tank located indoors is
a common form of pan water freeze protection for
evaporative cooling equipment. However, for those
installations which will not allow this type of system, freeze
protection may be provided by electric immersion heaters or
steam or hot water coils installed in the pan.
The electric heater package consists of immersion
heaters installed in the pan to provide efficient even
heat distribution. Standard heaters are selected to
provide approximately 40°F pan water at -10°F ambient
temperature. A low water cutout switch is supplied to
prevent heater operation when the elements are not
completely submerged. The heaters are monitored by a
sump thermostat with remote sensing bulb located in the
pan water. All heaters and controls are factory installed for
field wiring by others.
CASING INSULATION
In order to further reduce the heat loss from the unit
coil, factory installed insulation on exterior coil panels
is available. A protective coat of paint is applied to the
insulation for protection from the weather elements.
CONTROL – STARTER PANEL
NOTE: Pan heater packages are designed to prevent
pan water freezing during unit shutdown with fans and
pump idle.
Contains the fan motor starter, disconnect switch,
thermostat sensing the cold water temperature to control
the fan motor and control transformer when required by the
supply power characteristics. All components are contained
in a NEMA 12 enclosure with UL label and mounted on the
unit. Fan motor and controls are factory wired to the panel
to provide single point connection for users power supply.
STAINLESS STEEL CONSTRUCTION
In addition to the standard stainless steel basin, fill supports
and access doors, 300 stainless steel construction is
offered as an option for upper casing panels.
Panels for dual fan-motor arrangement include elapsed
time meters for both motors to aid in determining energy
savings. NEMA 3R and 4 enclosures are also available.
RECOLD PRODUCTS
550 W MERCURY LANE
BREA, CALIFORNIA 92821
UNITED STATES
704 529 6080
spxcooling.com
In the interest of technological progress,
all products are subject to design and/or
material change without notice.
©2008 SPX Cooling Technologies, Inc.
Printed in USA | RECOLD JT-TECH-07A
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