NATATORIUMS FISENUSA.COM

NATATORIUMS
FISENUSA.COM
NATATORIUM
DEHUMIDIFICATION
TECHNOLOGY
Benefits
Natatoriums require precise temperature and humidity
controls to create a comfortable environment for swimmers
and guests. Johnson Controls, a leader in commercial HVAC
systems and controls, has partnered with Fisen to offer a
series of dehumidification systems that meet the specific
needs of a variety of natatorium types and sizes.
• Individually engineered units are highly customizable to
include any combination of components and features
With high chlorine and humidity levels, natatoriums require a
robust system that is resistant to corrosion. Our pool units
focus on humidity control and are engineered for optimum
energy efficiency.
• Optional pool water heater available for reduced
energy usage
• Sustained perfect comfort 24/7
• Low operating costs and high energy efficiency
• Precise microprocessor controls to accommodate the
most complex sequences of operation
• Backed by the Johnson Controls warranty and a national
network of over 10,000 service providers
Popular Options & Standard Features
• Double-wall insulated & rugged outdoor construction
• LonWorks, BACnet, N2 or Modbus communications
• 1,000 hour salt-spray tested finish
• Energy recovery wheel, sensible plate, or enthalpy plate
heat exchanger
• Factory tested refrigeration system
• Microchannel high efficiency condenser coil
• Four independent refrigeration circuits
• Hot gas bypass capacity control
• Corrosion resistant interior and components
• Oversized purge exhaust fan
• Modulating natural gas, hot water or steam
• Split system units available
• Pool water heater
Visit fisenusa.com for more information.
How it works
Return Air
1 Depending on conditions, return air
is exhausted or recirculated
5
4
DX Coil
2 Cools air and removes moisture
Hot Gas Reheat Coil
3 Reheats air from evaporator to
2
comfortable temperature
6
Evaporator Bypass
4 Up to 40% of air can bypass DX Coil,
1
increasing efficiency
5
3
Outside Air
Return Air
Maintains minimum ventilation rates
84°
Ex.
6 Optional Pool Water Heater
Supply Air to Natatorium
60
%
F
84°F
Ex.
47%
Saves energy by using waste heat
Airpath Location
Temp (°F)
Humidity
(RH%)
84°F
50°F
78°F
95°F
84°F
60%
100%
37%
40%
47%
Return Air
Cooling Coil
Hot Gas Reheat
Outdoor Air
Supply Air
140
130
120
Return Air
ng
li
o
Co
110
Bypass
Air
il
Co
Outdoor Air
100
90
Supply Air
80
Mixed Air
70
60
Psychrometrics Chart
Hot Gas Reheat
Normal Temperature I-P Units
50
Sea Level
40
Barometric Pressure: 29.921 in.
30
20
10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100 105 110 115 120 125 130
DRY BULB TEMPERATURE - ºF
Unit Performance
-10
SERIES
MODEL
MIN
CFM
MAX
CFM
COOLING
CAPACITY
MBH
MOISTURE
REMOVAL
LB/HR
POOL SIZE
SQ FT
10
NRP003 - NRP013
900 - 3200
1500 - 5600
32 - 148
15 - 67
350 - 1700
20
NRP015 - NRP025
4500 - 7500
7500 - 12200
178 - 290
81 - 132
2050 - 3350
40
NRP026 - NRP040
7500 - 12000
12500 - 20000
290 - 438
132 - 200
3350 - 5100
100
NRP050 - NRP130
12500 - 26000
24000 - 46000
570 - 1340
260 - 610
6600 - 16000
AIR FLOW
LEARN MORE AT
FISENUSA.COM
HUMIDITY RATIO - GRAINS OF MOISTURE PER POUND OF DRY AIR
Sample Pool Unit Psychrometrics