PoolPak PCP-2200-VH-I-A2NT4302N0A2AN0S User manual

Project Name: Jim Residence
Prepared For: Rohan Sunderaraj
Ecco Supply (Burnaby)
PoolPak Model #: PCP-2200-VH-I-A2NT4302N0A2AN0S
OACC Model #: NC-Z-1V-AUCSM-V
https://www.poolpak.com
3491 Industrial Drive
York, Pennsylvania 17402
1-717-757-2648
March 4, 2021

Submittal 59413.2 Mar 4, 2021Page 2 of 28
Table of Contents
Unit Summary 3
Design and Unit Performance 4
Unit Dimension Drawing 6
Condenser Dimension Drawing 8
Features Summary 9
Installation 12
Field Wiring Diagram 16
Pool Water Piping 17
General Specification 18
Warranty 26

Submittal 59413.2 Mar 4, 2021Page 3 of 28
Jim Residence
PCP-2200-VH-I-A2NT4302N0A2AN0S
Model 6 Ton compressor dehumidifier
Unit Subseries Pool Water Heater, Vented
Unit Location Indoor
Cabinet Horizontal - Single Walled - Standard
Supply Voltage 208V/1PH
Unit Control CommandPak
Refrigerant R410A
Disconnect No Disconnect
Outdoor Air Duct Collar c/w Manual Damper & Filter
Exhaust Fan None
Space Heating Remote heater by others
Heat Control Standard control signals: Valve and power
supply by others
Air Conditioning Air Cooled A/C - For Use With Remote
Outdoor Air Cooled Equipment
OACC Voltage 208V-230V/1PH
Warranty Standard - 2 years on driveline, 2 years on
compressor, 2 years on coils
Supply Air CFM 3000
Outdoor Air CFM 150
Supply Air Orientation Top Supply
Outdoor Air Orientation Top
Pool Water Connection Side
Condensate Drain Bottom
Unit Summary

Submittal 59413.2 Mar 4, 2021Page 4 of 28
Jim Residence
PCP-2200-VH-I-A2NT4302N0A2AN0S
Design Data
Outdoor Air (CFM) 150
ESP 0.5 inches
Room Conditions (°FDB/%RH) 82/60
Unit Total Airflow (CFM) 3000
Electrical Data
Unit Voltage (V/Ph/Hz) 208V/1PH/60
Unit Full Load Amps - FLA (A) 37.9
Unit MCA (A) (min circuit ampacity) 46
Unit MOP (A) (max overcurrent protect) 70
Supply Air Blower
Airflow (CFM) 3000
Type Plenum
Unit ESP (in WC) 0.75
Number of Motors 1
Motor HP 1.4
Motor FLA (A) 5.8
Motor Drive Direct Drive
Compressor
Type Scroll
Number of compressors 1
Refrigerant R410A
Motor RLA/LRA (A) 32.1/148.0
Design and Unit Performance

Submittal 59413.2 Mar 4, 2021Page 5 of 28
Evaporator Coil
Sensible Capacity (MBH) 47.4
Total Capacity (MBH) 86.1
Latent Capacity (Lbs/h) 34.2
Circuits 1
Reheat Coil
Total Heat Rejection (MBH) 107.6
Pool Heating
Type Cupro-nickel Co-axial Vented
Capacity (MBH) 51
Water Flow Rate (GPM) 10
Water Pressure Drop (PSI) 4.0
Connection Size (in) 3/4
Connection Type FTP
Connection Stub Material PVC
Maximum Circuit Pressure Rating (PSI) 60.0
Remote Outdoor Air-Cooled Condenser
Model NC-Z-1V
Design Air On Temp (°F) 95 F
Estimated Field Charge (lbs R410A) TBD
Recommended line set size HG (in OD) 7/8
Recommended line set size LQ (in OD) 5/8
Maximum line length (ft) 50
Voltage (V/Ph/Hz) 208V-230V/1PH/60
Number of Motors 1
Motor HP 1.4
Motor FLA (A) 5.4
MCA (A) 7
MOP (A) 15
Design and Unit Performance

1
1
2
2
3
3
4
4
A A
B B
C C
D D
Cab RH
eforget
2018-06-05
DATEDATE
DRAWN BYDRAWN BY
DESCRIPTION
SHEET
REVREV
SHEET
DESCRIPTION
CAD FILECAD FILE
1 of 2
PPRH0S-E7HCO-E8TCO-E6TDP-0-0-0-SRI0
621.75
5.5
27
4.25
6.75
16
11
76.251.5
2
39
5.25
23
25.5
49.5
4
1.5
43.25
1.5
6.5
15.25
6.5
18
21.75
5.5
21.25 2.5
Drain Pipe Connection
(P-Trap Required)
* Refer To Unit Summary Sheet For Options Selected.
Unit Operating Weight: 830 LBS.
Return Air
Outdoor Air
Supply Air
18" Clearance Required For Service
30" Clearance Required For Service
30
1.25

DETAIL D
1
1
2
2
3
3
4
4
A A
B B
C C
D D
Cab RH
eforget
2018-06-05
DATEDATE
DRAWN BYDRAWN BY
DESCRIPTION
SHEET
REVREV
SHEET
DESCRIPTION
CAD FILECAD FILE
D
2 of 2
PPRH0S-E7HCO-E8TCO-E6TDP-0-0-0-SRI0
Return Air
Supply Air
Outdoor Air
*OA Damper
*SA Collar
*Pool Water Connection
Filter Access
Coils Access Compressor Access
Drain Pipe Connection
(P-Trap Required)
Electrical Access *OA Filter Door Access
*Hot Water Connection
*Air Cooled AC Connection
*Water Cooled Connection
Removable Ski

dslater 1 OF 1
DRAWN BY
DATE
SHEET
CAD FILE
DESCRIPTION
NC-Z-1V rev03
01/07/19
UNIT OPERATING WEIGHT: 150 LBS
Hot Gas Connection
7/8" OD
Liquid Connection
5/8" OD
Electrical Access Panel
Non-Fused Disconnect
Optional)
34 1/4
28 1/4
4 1/237 7/8
35 3/4
Removable Legs
Shipped loose)
Important note:
Minimum 24" of clearance all the
way around for proper air flow.
60" of clearance required.
NC-Z VERTICAL AIR FLOW, 1 CIRCUIT
Noise level at 10' may vary due to installation):
Low speed, 40 dBA
High speed, 60 dBA

Submittal 59413.2 Mar 4, 2021Page 9 of 28
VIRTUAL-TECH®TECHNOLOGY – REMOTE INTERNET CONTROL, DIAGNOSTICS
AND REPORTING
There’s only one way we could provide superb, factory-engineered performance after a dehumidifier
leaves our plant. It’s called Virtual-Tech Technology.
Virtual-Tech Technology provides a powerful array of capabilities designed to ensure peak operating
performance, a minimum of down time and the absolute lowest cost of ownership in the industry. Like
an umbilical cord back to the factory, with Virtual-Tech, literally every aspect of the dehumidifier’s
performance can be monitored, recorded, analyzed and tweaked for its entire lifetime. Our recording
servers are equipped with sophisticated monitoring algorithms designed to detect and protect each and
every dehumidifier with literally minute by minute monitoring, 24 hours a day 7 days a week.
From regular service issues to potentially serious matters, if any kind trouble indicator is identified, instant
alerts are sent to predetermined contacts including designated service technicians via email alerts. Upon
notification, authorized service technicians can instantly login to the system live, to observe, adjust and
control important parameters via Virtual-Tech’s web or smart phone interface.
Virtual-Tech brilliantly solves the most challenging issues of dehumidifier industry to guarantee your
client has the very best dehumidifier performance, with fewer service calls and minimum down time while
enjoying the best lifetime service and value of any dehumidifier in the industry.
Virtual-Tech®Advantages
• Premium extended 1st year warranty – parts and labor
• Fully monitored remote factory start-up capability
• Comprehensive installing contractor support
• Virtual-Tech smart phone interface
Features Summary

Submittal 59413.2 Mar 4, 2021Page 10 of 28
Virtual-Tech®Capabilities
• Remote monitoring for lifetime of dehumidifier
• Real time monitoring and alarm service
• Secure online access to real time data
• Secure remote access for set point adjustments
• Remote access with smart phone application Web
COMMANDPAK®CONTROLLER –
FOR PEAK PERFORMANCE
PoolPak’s CommandPak Controller, provides unmatched space control,
operating efficiency and equipment protection.
CommandPak®Capabilities
• Automated, programmable, remote controllable system control
• Utilizes built-in pressure transducers
• Measures, monitors and controls hundreds of operating parameters
• Real time clock with battery back-up and on-board memory for
data logging
• Easy to use programming interface with alternate web and smart
phone control capability
• Optional remote operator panel unit can be located up to 1,000 ft.
away from unit
• Allows live 24-7 monitoring, performance logging, computer analysis, and secure remote control via
the Internet or smart phone with PoolPak’s Virtual-Tech Technology
CommandPak®Specifications
• Both staged and modulated control for space heating, cooling and dehumidification.
• 20 unit mounted sensors including space/pool conditions and refrigerant pressures.
• 16 digital inputs (dry contacts) used for monitoring fault conditions and external control of the unit
• 24 digital outputs and 4 analog outputs used for controlling internal and external components.
• 2 RS-485 serial ports and 1 RS-232 serial port
• 1 Ethernet port (RJ45)
• LON, Modbus, BACnet building automation option available.
Sensor Information
• Refrigerant high pressure
• Refrigerant suction pressure
• Outside air temperature
• Outside air humidity
• Air temperature leaving the evaporator
• Supply air temperature
• Compressor superheat temperature
• Compressor compartment temperature
Features Summary

Submittal 59413.2 Mar 4, 2021Page 11 of 28
Service Technician Mode
• History log of sensor data with date/time
• History log of alarms and status
• History log of operation
• Force modes of operation
• Adjust damper
• Calibrate damper
• Test Internal and External Contacts
Alarms
• Communication fault, Sensor fault, Dirty filter, High refrigerant pressure fault, Low refrigerant pressure
fault, No airflow, Blower overload, Firestat, High supply air temperature
INDUSTRY LEADING FEATURES
PoolPak dehumidifiers match or exceed the specifications of every other competitor in the marketplace.
Built-in Refrigerant Pressure Transducers
• Allow 24-7 Monitoring of critical suction and discharge pressures to ensure optimal system
performance
Superior Compressor Protection
• Advanced monitoring and control technologies to protect compressors including sight glasses on
receivers
Fully Dipped Coils
• Provide 100% protection against corrosion (not just the fins)
Direct Driven, Backward Inclined Airfoil Plenum Fans
• Provide powerful, quiet, efficient, reliable performance with no belts to adjust, wear out or replace
• These fans also allow factory installed auxiliary air heating while providing maximum flexibility for
supply air duct options
Service Vestibule Outside Air Stream
• Protects critical components from chlorinated air stream, maximizes AC efficiency, and allows unit
servicing while in operation
Ultra Compact Designs
• Allow twice the capacity in half the footprint (StakPak Series) with up to 14 tons of dehumidification
fitting through a 30 inch door.
Features Summary

Submittal 59413.2 Mar 4, 2021Page 12 of 28
Heavy objects! Do not use cables (chains or slings) except as shown. Each of the cables (chains or
slings) used to lift the unit must be capable of supporting the entire weight of the unit. Lifting cables
(chains or slings) may not be of the same length. Adjust as necessary for an even unit lift. Other
lifting arrangements may cause damage to equipment, serious injury or death of personnel. Always
place, assemble, and suspend single sections. Do not lift units in windy conditions. Do not raise units
overhead with personnel below unit.
Improper lifting procedure! Test lift the unit 24 inches to verify proper operation of lifting equipment
and positioning of lift points such that the unit is level. Failure to properly lift the unit could result
in equipment damage, serious injury or death. PoolPak®is not responsible for the improper use of
lifting equipment.
When lifting unit, appropriate personal protection equipment (PPE) such as steel-toed boots and
hard hats must be worn to avoid potentially serious injury.
!WARNING
!WARNING
!WARNING
MECHANICAL INSTALLATION
Lifting and Rigging Procedures
• Determine the approximate center of gravity before lifting the unit. Consult unit design drawings
provided in the submittal documents to center total weight and weight distribution.
• Never assemble split sections before lifting them to the installation location. Always lift sections as
received from the factory.
• Lift sections using the provided lifting lugs
• To avoid damage, do not attach intake or exhaust hoods prior to lifting the unit into place.
Unit Assembly (Split Units Only)
Under special conditions, the unit may be split into two or more sections to ease the installation process.
Base angles are attached using 3/8” bolts, and inside angles are bolted using 5/16” bolts. Ensure that
all provided holes are used. Caulk seams on the outside of the unit to make the join air-tight. Install the
standing seam roof rib.
Duct Connections
All duct connections should be installed in accordance with local and national standards. To ensure
the highest fan efficiency, duct turns and transitions should be made to minimize air friction losses and
turbulence. See supplied unit drawing from the submittal for location and size of unit duct connections.
Use only flexible duct connectors to connect to the unit.
Installation

Submittal 59413.2 Mar 4, 2021Page 13 of 28
Piping and Unit Connections
See the unit label for unit connection line sizes. The installer must endeavor to ensure that all industry
standards for refrigeration component installation are met. This includes but is not limited to; proper
line sizing, materials, nitrogen purging, brazing with Silfos 5 or better (NO SOFT SOLDER), evacuation,
cleanliness, traps, long radius elbows and system charging.
Drain Pans - Condensate Drain
The dehumidifier is a draw through configuration as a result the entire cabinet is under negative pressure.
Without a P-trap, condensate will not drain and the unit will overflow into your mechanical room.
• Per Figure 1 pitch the condensate drain line a minimum of 1/8” per linear foot, and support the pipe with
code approved hangers at least every 5 feet.
• If the drain line passes through an unconditioned space, heat tracing is required to prevent the
condensate in the drain from freezing.
When gravity disposal is not possible, a condensate pump can be used. Follow the pump manufacturer’s
installation instructions.
Figure 1
Drain Pans - Condensate Drain
Field Installed Outdoor Air Cooled Condensers and Fluid Coolers
This condenser is used in air conditioning mode where it rejects unneeded heat from the space to
outdoors. Proper installation is essential to ensure it can function as intended. Proper airflow and
refrigerant piping are paramount. Ensure an appropriate maximum ambient air temperature has
been specified. Ensure the unit has proper airflow per Figure 2. A perimeter of free area equal to its
width must be provided. Use line sizes as specified by PoolPak. To avoid potential seasonal system
charge problems, ensure the installed line lengths are never longer than indicated on the plans and
specifications. If the condenser is installed above the dehumidifier, ensure the hot gas line has proper oil
traps. Contact PoolPak if the condenser is installed more than eight (8) feet below the dehumidifier. The
installer must endeavor to ensure that all industry standards for refrigeration component installation are
met. This includes but is not limited to; proper line sizing, materials, nitrogen purging, brazing with Silfos
5 or better (NO SOFT SOLDER), evacuation, cleanliness, traps, long radius elbows and system charging.
Install the remote condenser on a level, hard surface. Bolt the condenser in place.
Installation

Submittal 59413.2 Mar 4, 2021Page 14 of 28
Refrigerant Piping of Remote Condensers
PCP series dehumidifiers are equipped with isolation valves and access valves located in the blower
compartment. Do not open the isolation valves until all exterior piping is leak checked and evacuated.
The last outdoor condenser vacuum can be broken with liquid refrigerant (R-410A). Monitor the exact
amount of refrigerant added, as the total system charge must be per the unit nameplate. The PCP series
dehumidifiers have refrigerant pipe stubs for the line set connection inside the cabinet. Use standard
commercial refrigeration piping practices when installing the refrigeration piping between the dehumidifier
and the remote air-cooled condenser.
• Hot Gas and Liquid line sizes should be per unit nameplate. The stubs inside the unit will be the correct
sizes for line lengths up to 50’
• Do not exceed 50’ total line length or install the condenser more than 8’ below the unit. Consult
PoolPak before installing the outdoor air-cooled condenser more then 8 feet below or more than 50 feet
away from the dehumidifier.
• Per Figure 3, install an oil trap at the start of and at every 15 feet of vertical lift in the hot gas discharge
line as shown. Pitch horizontal lines a minimum of 1/2” every 5 feet in the direction of flow. All piping
must be clean and de-burred. Keep copper chips and foreign materials out of the tubing. A nitrogen
purge while brazing is paramount to reduce the chances of oxidation in the pipes.
• Keep the Hot Gas and Liquid lines a minimum of 2” apart to prevent heat transfer. Insulate the hot gas
line in all areas where a person may come in contact with the line and be in danger of a burn.
• When all piping work is complete, check for leaks by pressurizing the remote condenser and line set
with dry nitrogen. If no leaks are detected, the circuit is ready to be evacuated. Evacuate the condenser
and piping to a minimum 250 microns. Isolate the piping for ONE HOUR to verify that the system is
free from leaks, moisture, and non-condensables. For further details on proper vacuum and evacuation
procedures, see section H – Routine Maintenance.
Figure 2. Typical Outdoor Condenser Installation
Installation

Submittal 59413.2 Mar 4, 2021Page 15 of 28
Charging of Remote Condensers
Once a proper evacuation has been accomplished the system is ready for charging. The outdoor air-
cooled condenser requires a field charge by the installing contractor. The field charge required depends
on the size of the condenser and the length of the piping. The unit nameplate will show the exact field
charge required. The last vacuum can be broken with liquid refrigerant. Monitor the exact amount of
refrigerant added, as the total system charge must be per the unit nameplate. Connect the control wiring
to the terminals provided inside the electrical compartment of the dehumidifier and outdoor condenser.
Refer to the low voltage wiring schematic for details. The condenser fan(s) will not operate until this is
complete. Once you have charged and checked the condenser and line set for leaks, open the service
valves located in the compressor compartment of the dehumidifier. There is an access valve in the liquid
line after the pump down valve. The pump down valve can be manually closed during start-up mode
via the controller. Add only as much refrigerant as is needed to get to the total charge indicated on the
nameplate. Never charge liquid into the suction line access valve! The receiver has 2 sight glasses with
float balls to help ensure the maximum and minimum refrigerant levels are easily met.
Fluid Cooler Installation
Fluid cooled units come with a separate pump for the fluid loop. PVC piping is highly recommended for
fluid cooler installation.
Figure 3. Typical Outdoor Condenser Installation
Installation

bsimpson
FILE: PoolPak-FWD-PCP-Z-00
SHEET 1 OF 1
DRAWING NUMBER
DFTN DATE REV #: 0.0
REV COMMENTS APPROVED
04/27/18 6
5
4
3
2
1DATE
FWD-PCP-Z-00
PCP Series Field Wiring Diagram with
NC-Z/NC-B/NG-Z Remote Condenser
1
2
3
4
5
6
7
8
9
10
J7
1
2
3
4
5
6
7
8
9
10
J9
485-
485+
C
24+
MODU ATING HEAT (0-10 Vdc)
DC COMMON AND SCR CONTRO
REMOVE JUMPER FOR FIRE
STAT INTER OCK
OUTDOOR AIR DAMPER ON/OFF
(FACTORY WIRED ON SOME MODE S)
EXHAUST FAN/DAMPER ON/OFF
(FACTORY WIRED ON SOME MODE S)
STAGE 1 HEAT
(FACTORY WIRED ON SOME MODE S)
STAGE 2 HEAT
(FACTORY WIRED ON SOME MODE S)
AUXI ARY POO (1) WATER HEATER
OUTDOOR CONDENSER 2
RJ45 ETHERNET/ AN CONNECTOR
1
2
3
4
5
6
7
8
9
10
J10
1
2
3
4
5
6
7
8
9
10
J8
6
G
L3
L2
L1 MAIN
PRIMARY
1
2
3*
GROUND
PURGE FAN/DAMPER ON/OFF
(FACTORY WIRED ON SOME MODE S)
10 ... 6 ... 1
J11
CONTRO WIRING C ASS 1 CIRCUIT, DRY CONTACT, 24 VAC, 5A
pins 6-10 24 VAC COMMON
pins 1-5 24 VAC
DEHUMIDIFICATION UNIT
PRIMARY
1
2
3*
GROUND
G
L3
L2
L1
2
J8-10
CONTRO WIRING
C ASS 1 CIRCUIT,
24 VAC
OUTDOOR CONDENSER
(MU TI SPEED 0-10 Vdc)
OUTDOOR CONDENSER 1
AUXI ARY POO (2) WATER HEATER
*APP ICAB E
TO 3 PHASE.
*APP ICAB E
TO 3 PHASE.
HEAT RECOVERY PUMP ON/OFF
(FACTORY WIRED ON SOME MODE S)
EXHAUST FAN 1 SPEED (0-10 Vdc)
B OWER SPEED (0-10 Vdc)
HEAD PRESSURE CONTRO (0-10 Vdc)
REMOVE FUSE F5 (DRY CONTACT)
DCC
J8-4 (DCC)
1
4
3
J10-2
J10-1
JHMI

F.Y.W.
CAD FILE
DAS-PHS-000-001
B.P.
12/28/17
DATE
DRAWN BY APPROVED BY
TITLE
Pool Heating Schematic For Dehumidifiers
BALL VALVE
BALL VALVE
POOL
BALL VALVE
(BY PASS)
BALL VALVE
AUXILIARY PUMP
BALL VALVE
BALL VALVE
BALL VALVE
BALL VALVE
BALL VALVE
FLOW
DEHUMIDIFIER
DEHUMIDIFIER
CERTAIN
MODELS
METER
*
*
*
*
*
*
*
FLOW
METER
NOTES:
---*-Components are optional
---This drawing is to be used as referrence only
AUT.
CHEMICAL
FEEDER
AUX. POOL
HEATER
CHECK
VALVE
POOL
FILTER

Submittal 59413.2 Mar 4, 2021Page 18 of 28
1.
A.
B.
C.
D.
2. A.
B.
C.
D.
E.
F.
G.
H.
1.
I.
Part 1 - General
Scope
Furnish and install, where indicated, a factory-assembled, fully-enclosed, split environmental control system with energy
recovery feature(s) designed for natatorium environment control
Features shall include:
Dehumidification by means of a direct expansion evaporator coil
Cooling mode with heat rejection to a remote outdoor air cooled condenser
Pool water heating from reclaimed compressor waste heat by means of a vented heat exchanger
Integral minimum outdoor air connection
Quality and Safety Assurance
The system shall be ETL listed
The system shall be completely assembled, wired, piped, and test-run at the factory prior to shipping. All controls shall be
factory adjusted to satisfy the design conditions.
Manufacturer shall have a minimum of ten-plus years prior experience making similar equipment as described in this
specification.
Wherever possible, the system shall have a mechanical vestibule where the electrical panel, compressor(s), pool water
heat exchanger(s), receiver(s) and most of the refrigeration controls are out of the process air stream
The system shall have a microprocessor controller with unit-mounted refrigerant pressure transducers on each refrigeration
circuit, multiple temperature sensors and an Ethernet connection for factory logging and parameter adjustment via the
Internet. The refrigerant pressure transducers shall be actively used for system control. The customer (or their authorized
representative) shall be provided access to the online logging and parameter adjustment interface, upon request.
Demonstration of these capabilities must be carried out at the engineer's office prior to bid day
The system shall have remote factory start-up assistance capability, when connected to a network with Internet access
The system shall have 24-7 remote computer logging capability with automated alarm notifications and system performance
alerts transmitted via e-mail to authorized users, when connected to a network with Internet access
Warranty: The entire system shall have a 24-month limited parts warranty from the factory ship date
A 1-year labor warranty shall be provided by the manufacturer when the system is connected to the factory via an
Internet monitoring system from the date of initial commissioning
When connected to a network with Internet access, the system shall have remote service capability with the ability for field
service technicians to receive service and trouble alerts by e-mail and make parameter adjustments via a browser interface
on any Internet-capable device
General Specification

Submittal 59413.2 Mar 4, 2021Page 19 of 28
3.
A.
B.
C.
D.
E.
F.
G.
H.
I.
4.
A.
1.
2.
3.
B.
1.
2.
3.
C.
1.
2.
3.
4.
D.
1.
2.
3.
E.
1.
2.
3.
F.
1.
Part 2 - Product
General
The natatorium control system shall include:
Mechanical process dehumidification
Indoor cabinet configuration
Single wall cabinet configuration for use in conditioned/ventilated mechanical spaces only
Split system with remote outdoor air-cooled condenser for AC heat rejection
Potable water rated coaxial condensing heat exchanger(s) with double wall vented construction for pool water heating using
reclaimed compressor waste heat
Air filtration via MERV-8 2-inch pleated panel filters for return and outdoor air
Minimum outdoor air connection
Programmable microprocessor controller with remote Internet logging and parameter adjustment
A service vestibule where the compressor, refrigeration specialties, control valves and all electronics are outside of process
air stream
Sequence of Operation
The system shall be designed and sized to maintain the specified space conditions
System Startup
Power is turned on or the system is restarted
After a short initial delay to allow the sensors to stabilize, the blower starts and operates continuously
Based on sensor feedback, the system shall begin or resume operation based on the sequence below
Airside Configuration
The system continuously delivers the specified supply air volume to the natatorium
The minimum exhaust air volume is set to meet the engineer's schedule.
The minimum outdoor air volume is set to meet the engineer's schedule.
Dehumidification Mode
The return air relative humidity is above the humidity setpoint
Return air dewpoint is above dewpoint setpoint.
The compressor enters the Compressor Start sequence
Initially, 100% of compressor hot gas discharge will be diverted to condense at the air reheat coil. The supply air
temperature will be higher than the return air temperature
Air Conditioning Mode
The return air temperature is above the room temperature setpoint
The compressor starts, if not already operating in Dehumidification Mode
Excess compressor hot gas is diverted to the outdoor air cooled condenser for up to 100% heat rejection at summer
design ambient conditions
Space Heating Mode
The return air temperature is below the room temperature setpoint
The microprocessor space heating output signal is sent to the heating coil controller
The microprocessor space heating output signal (0-10 volts) is sent to the heating coil controller. The signal output will
regulate based on the return air temperature
Pool Water Heating Mode
The return pool water temperature is below the pool water setpoint
General Specification

Submittal 59413.2 Mar 4, 2021Page 20 of 28
2.
3.
G.
1.
2.
3.
5.
A.
1.
2.
3.
4.
5.
B.
1.
C.
1.
2.
3.
4.
D.
1.
2.
3.
4.
6.
If the compressor is already operating due to a Dehumidification or Air Conditioning demand, the control valves will
divert the compressor hot gas through the coaxial heat exchanger to heat the pool water, with the remainder rejected at
the air reheat coil or the AC heat exchanger
If there is no pre-existing demand for the compressor to operate, the microprocessor sends a signal to the auxiliary pool
water heater (remote by others) to operate. The compressor will not operate solely for a pool water heating demand
unless specifically configured to do so at the controller
Freeze Protection
The supply air temperature falls below the freezestat setpoint
Exhaust fan(s) are stopped and outdoor air damper(s) are fully closed
When the freezestat alarm is tripped, it must be manually cleared by the operator
Cabinet
Cabinet Construction: All cabinet 16, 20 and 24 gauge sheet metal shall be galvanized G90 steel or GalvalumeTM alloy
with mill-applied zinc phosphate primer followed by an exterior grade white silicone modified polyester top coat. The sheet
metal is engineered to form a cabinet with maximum strength and rigidity. All seams shall be caulked with silicone to
prevent air and water leakage or infiltration
The cabinet walls shall be of single-wall construction using 20 gauge pre-painted steel with 1 inch of fiberglass
insulation protected by an anti-microbial top coat
The cabinet floor shall be of 2-inch double-wall construction using 20-gauge pre-painted steel engineered with
structural bends for maximum rigidity, mechanically fastened to the base frame
The cabinet roof shall be engineered with structural bending for maximum rigidity with 20-gauge steel and shall be
mechanically fastened to the walls of the unit
The cabinets shall be mechanically assembled with stainless steel 5/32" sealed blind rivets. Where bolts are required
bright zinc plated bolts shall be used
Access doors shall be removable, secured to cabinet using heavy-duty stainless steel hex-head bolts with stainless
steel washers insulated with rubber gaskets
Outdoor Air Intake:
Minimum Outdoor Air connection: duct collar, manual damper and filter
Insulation: The unit shall be insulated per the following standards:
One inch thick, surface coated with an anti-microbial layer, protected against perforation and fiber air entrainment with a
reinforcing mesh
Fire resistant rating to conform to NFPA Standard 90A and 90B
Sound attenuation coefficient shall not be less than 1.00 at a frequency of 1,000 Hz as per ASTM Standard C423
Thermal conductivity shall not exceed 0.23 Btu/hr-sqft-ft at 75 °F
Cabinet configuration shall include:
A filter rack with separate access doors shall be provided for the return air and minimum outdoor air streams
Unit shall be equipped with duct collars to admit the minimum outdoor air as scheduled. The outdoor air intake
assembly shall have a built in air filter rack with separate access door and manual air balancing device
Mechanical vestibule: The unit shall have the compressor, receiver, solenoid valves and the electrical panel in a
separate compartment out of the processed air stream. All components shall be serviceable while the unit is in
operation without disturbing the airflow
Electrical panel: The unit shall have a built-in electrical control panel in a separate compartment in order not to disturb
the airflow within the dehumidifier during electrical servicing. All electrical components shall be mounted on a 16 gauge
galvanized sub-panel
Filters
General Specification