PoolPak ComPak AW Series Installation and operating instructions

© 2017 PoolPak LLC. All rights reserved.
Installation, Operation and
Maintenance
ComPak®R-410A
AW/HCD Series
RoofComPak®Series
HCD (High Capacity Dehumidifier)
AW (Air and Water)
Horizontal (H) and Vertical (V) Configurations
FORM #: SVW06-PCPIOM-20170808
SUPERCEDES: SVW06-PCPIOM-20150514
UPDATED: JUNE 2018

3491 Industrial Drive
York, Pennsylvania 17402 USA
800-959-7725 Fax [phone]
© 2017 PoolPak LLC. All rights reserved. DRAFT-SVW06-PCP-IOM-20170706
Table of Contents
IMPORTANT ................................................................................................................................ 7
Warning ....................................................................................................................................................7
Intended Users............................................................................................................................................7
SECTION I: INDOOR POOL DESIGN .............................................................................................. 8
Introduction ................................................................................................................................................8
Creating an ideal environment for indoor pool facilities ...................................................................................8
Operating Cost...........................................................................................................................................8
Application ................................................................................................................................................8
Moisture Loads ..........................................................................................................................................8
Effects of Moisture ......................................................................................................................................8
Indoor Air Quality.......................................................................................................................................9
Occupant Comfort ......................................................................................................................................9
Pool Water Chemistry ...............................................................................................................................10
SECTION II: PRINCIPLES, FUNCTIONS, AND FEATURES................................................................. 11
The Mechanical Dehumidification System..................................................................................................... 11
Principles of Operation .............................................................................................................................. 11
Automatic Control of Air Temperature and Humidity...................................................................................... 11
Room Dew Point Control............................................................................................................................. 12
ComPak Operation.................................................................................................................................... 12
CommandPak®Control System.................................................................................................................... 13
Overview ................................................................................................................................................. 13
Humidity Control....................................................................................................................................... 13
Cold Surface Temperature Humidity Reset ....................................................................................................14
Space Heating..........................................................................................................................................14
Networking Multiple Units .........................................................................................................................14
Space Cooling (Optional) ..........................................................................................................................14
Water Heating (Models AWV and AWH only) ............................................................................................. 14
Features and Options ................................................................................................................................15
Standard Items Factory Mounted................................................................................................................. 15
Standard Items Factory Supplied for Field Installation ....................................................................................15
System Options......................................................................................................................................... 15
RoofComPak®Series.................................................................................................................................. 16
Design Features ........................................................................................................................................16
Durable Construction .................................................................................................................................16
Rooftop Installation.................................................................................................................................... 16
Microprocessor Controller..........................................................................................................................16
Heating Packages .....................................................................................................................................16
Self-Contained Air-Cooled Condensing Section ............................................................................................ 16
Evaporator Coil Options ............................................................................................................................17
Electronically Commutated (EC) Fans ........................................................................................................... 17
Unique Outside Air System......................................................................................................................... 17
Cupronickel Water Heat Exchanger ............................................................................................................17
Technical Summary ................................................................................................................................... 18
Dimensional Data...................................................................................................................................... 18

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ComPak®Series IOM
SECTION III: PERFORMANCE AND SIZING................................................................................... 19
ComPak®Performance...............................................................................................................................19
ComPak®AW (AWV, AWH) Performance .................................................................................................... 19
ComPak®HCD (HCDV, HCDH) Performance ................................................................................................20
ComPak®Unit Dimensions ..........................................................................................................................21
ComPak®Horizontal Dimensions ................................................................................................................. 21
ComPak®Vertical Dimensions .....................................................................................................................22
ComPak®Outside Air Damper Size .............................................................................................................23
Hot Water Coil Capacities .........................................................................................................................24
Factory Refrigerant Charge ........................................................................................................................25
Remote Air-Cooled Condenser (ACC) Performance........................................................................................26
Electric Duct Heater...................................................................................................................................28
General Duct Heater Information ................................................................................................................28
Duct Heater Sizes......................................................................................................................................28
SECTION IV: INSTALLATION........................................................................................................ 29
PCP Installation .........................................................................................................................................29
Introduction ..............................................................................................................................................29
Handling..................................................................................................................................................30
Clearance ................................................................................................................................................ 31
Mounting of ComPak Units ......................................................................................................................... 31
Inspection................................................................................................................................................. 31
Power Supply............................................................................................................................................ 31
Control Wiring.......................................................................................................................................... 31
Condensate Piping .................................................................................................................................... 31
Curb Mounting .........................................................................................................................................32
Integral Gas Furnace Option (RoofComPak Only) .........................................................................................33
CPCS-PCP Controls Field Wiring.................................................................................................................34
Overview .................................................................................................................................................34
Remote Interface Unit (1) ............................................................................................................................34
Cold Surface Temperature Sensor (2)...........................................................................................................35
Economizer System (Optional) (3)................................................................................................................35
Outside Air Temperature Sensor (Economizer Option Only) (4).......................................................................36
Air Cooled Condenser (Optional) (5)...........................................................................................................36
Auxiliary Pool Water Heating System (AWH Model only*) (6)........................................................................37
Auxiliary Air Heating System (7) .................................................................................................................37
External Alarm System (8) ..........................................................................................................................37
Building Fire Control System (9)...................................................................................................................38
Return Air Sensor (10)................................................................................................................................38
Purge Mode Input (11)................................................................................................................................38
AC Proof Input (12)....................................................................................................................................38
Pool Water Temperature Sensor (13)............................................................................................................38
Pool Water Piping (AWH and AWV models only*) .......................................................................................40
Salt Water Pools ....................................................................................................................................... 41
Condensate Drains.................................................................................................................................... 41
Water Cooled Condenser ..........................................................................................................................42
Remote Air-Cooled Condenser Installation....................................................................................................42
Space and Location Requirements ...............................................................................................................42
Field Installed Piping..................................................................................................................................44

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SECTION V: OPERATION ............................................................................................................ 48
CPCS-PCP Configuration............................................................................................................................48
CPCS-PCP Remote Interface Unit .................................................................................................................48
Status Display...........................................................................................................................................48
Purge Mode Control Menu .........................................................................................................................51
Detailed Status Menu.................................................................................................................................52
CPCS-PCP Network Operation ...................................................................................................................54
Network Configuration ..............................................................................................................................54
CPCS-PCP Service.....................................................................................................................................56
Service Menu ...........................................................................................................................................56
I/O Configuration .....................................................................................................................................57
History..................................................................................................................................................... 61
Utilities.....................................................................................................................................................63
Startup.....................................................................................................................................................63
Pre-Start Checklist......................................................................................................................................63
Start-Up ...................................................................................................................................................64
Troubleshooting.........................................................................................................................................65
Data Log Retrieval .....................................................................................................................................67
Network Troubleshooting Guide .................................................................................................................68
Troubleshooting Guide...............................................................................................................................69
Maintenance ............................................................................................................................................70
Overview .................................................................................................................................................70
Daily Maintenance ....................................................................................................................................70
Monthly Maintenance................................................................................................................................70
Annual Maintenance .................................................................................................................................70
SECTION VI: WIRING ................................................................................................................. 71
Auxiliary Air & Pool Water Heater Connections for Multiple Unit Installation ....................................................71
Auxiliary Air & Pool Water Heater Connection for a Two Pool Installation........................................................72
Field Wiring .............................................................................................................................................73
Fire Control System Connection................................................................................................................... 74
Factory Wiring Diagrams...........................................................................................................................75

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ComPak®Series IOM
LIST OF TABLES
Table 1-1. Typical Pool Water & Air Temperature Set-Points ..............................................................................9
Table 1-2. Recommended Pool Water Chemistry ...........................................................................................10
Table 2-1. RoofComPak®Technical Data.......................................................................................................18
Table 3-1. ComPak®AW Performance Summary ........................................................................................... 19
Table 3-2. ComPak®HCD Performance Summary..........................................................................................20
Table 3-3. AW/HCD Horizontal Unit Overall Dimensions...............................................................................21
Table 3-4. AW/HCD Vertical Unit Overall Dimensions...................................................................................22
Table 3-5. ComPak®Outside Air Damper Size..............................................................................................23
Table 3-6. Hot Water Coil Capacities..........................................................................................................24
Table 3-7. Factory Refrigerant R410A Charge ..............................................................................................25
Table 3-8. Remote ACC Performance Chart..................................................................................................26
Table 4-1. Horizontal ComPak Curb Dimension.............................................................................................33
Table 4-2. R410A Charge for Air Cooled Condensers (lb.) .............................................................................46
Table 4-3. Refrigerant (R410A) Charge for Different Line Size.........................................................................47
Table 5-1. Solenoid Activation ....................................................................................................................65
Table 5-2. Pool Water Chemistry.................................................................................................................70
LIST OF FIGURE
Figure 2-1. ComPak®AW and HCD Typical Refrigerant System Schematic .......................................................13
Figure 2-2. PCP RoofComPak®Dimensions....................................................................................................18
Figure 3-1 AW/HCD Horizontal Unit Elevation and End Views........................................................................21
Figure 3-2. AW/HCD Vertical Unit Elevation and Plan Views ..........................................................................22
Figure 3-3. Air-Cooled Condenser (PoolPak®) - Isometric Views.......................................................................27
Figure 3-4. Air-Cooled Condenser (Bohn) - Elevation Views............................................................................27
Figure 3-5. Duct Heater..............................................................................................................................28
Figure 4-1. Typical ComPak®AWH Series System Layout................................................................................29
Figure 4-2. RP Lift Views .............................................................................................................................30
Figure 4-3. RoofComPak®Curb Assembly ....................................................................................................32
Figure 4-4. ComPak Horizontal Curb Assembly ............................................................................................33
Figure 4-5. Remote Interface Mounting Plate.................................................................................................34
Figure 4-6. Economizer Operation ..............................................................................................................35
Figure 4-7. Outside Air Sensor ....................................................................................................................36
Figure 4-8. PAC Unit Field Wiring ...............................................................................................................36
Figure 4-9. Installation of a Hot Water Coil 3-Way Valve ...............................................................................37
Figure 4-10. Field Wiring Schematic............................................................................................................39
Figure 4-11. Typical Pool Water Piping Diagram (AWH and AWV Model Only)*.............................................. 41
Figure 4-12. AWH and HCDH Condensate Trap ...........................................................................................42
Figure 4-13. Remote ACC Installation Around Walls or Obstructions ...............................................................43
Figure 4-14. Remote ACC Installation When Installing Multiple Units ...............................................................43
Figure 4-15. Remote ACC Installation When Installing Units in Pits...................................................................43
Figure 4-16. Remote ACC Installation When Installing Units Near Decorative Fences.........................................44
Figure 4-17. ACC Refrigerant Piping.............................................................................................................45
Figure 5-1. RIU Keypad ..............................................................................................................................48
Figure 5-2. Initial Startup Screen .................................................................................................................48
Figure 5-3. Status Screen 1 ........................................................................................................................48
Figure 5-4 Status Screen 4 .........................................................................................................................49

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Figure 5-6. Air Temperature Selection on the Set Points Menu.........................................................................50
Figure 5-7. Air Temperature Set Point Change Screen ....................................................................................50
Figure 5-8. Pool Temperature Set Point Change Screen .................................................................................. 51
Figure 5-9. Purge Mode Freeze Caution Screen ............................................................................................52
Figure 5-10. Detailed Status Menu...............................................................................................................52
Figure 5-11. Detailed Status Screen 2...........................................................................................................52
Figure 5-12. Detailed Status Screen 5 ..........................................................................................................53
Figure 5-13. Unit Present Screen..................................................................................................................54
Figure 5-14. Fault History Log screen ........................................................................................................... 61
Figure 5-15. Time and Date Screen..............................................................................................................63
Figure 5-16. Data Retrieval Using USB Key ...................................................................................................67
Figure 6-1. Auxiliary Air and Pool Water Heater Connections for Multiple Units................................................71
Figure 6-2. Auxiliary Air and Pool Water Heater Connections for Two Pool Installations.....................................72
Figure 6-3. Field Wiring Diagram................................................................................................................73
Figure 6-4. Fire Control System Connection .................................................................................................. 74
Figure 6-5. ComPak AW/HCD Main Schematic - Single Phase .......................................................................75
Figure 6-6. ComPak AW/HCD Main Schematic - Three Phase ........................................................................ 76
Figure 6-7. ComPak AW/HCD Point to Point Schematic - Single Phase, Vertical Unit ..........................................77
Figure 6-8. ComPak AW/HCD Point to Point Schematic - Three Phase, Vertical Unit...........................................78
Figure 6-9. ComPak AW/HCD Point to Point Schematic - Single Phase, Horizontal Unit......................................79
Figure 6-10. ComPak AW/HCD Point to Point Schematic - Three Phase, Horizontal Unit.....................................80
Figure 6-11. RoofComPak Factory Wiring Diagram........................................................................................81
Figure 6-12. ComPak and RoofComPak Startup Checklist ...............................................................................83

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ComPak®Series IOM
IMPORTANT
This product has been thoroughly tested before leaving the PoolPak factory.
However, please check at the earliest opportunity that the product has arrived in good condition and that no
damage occurred during shipping. If any damage is suspected, contact the carrier to file a claim.
If the product is to sit in storage for a length of time before installation, contact PoolPak Service department for
proper storage guidelines.
Warning
Only suitably qualified personnel who thoroughly understand the operation of this product and any associated
machinery should install, start-up or attempt maintenance of this product. Non-compliance with this warning may
result in personal injury or equipment damage.
PoolPak Service department must be contacted at least 2 weeks prior to equipment startup. A PoolPak authorized
service technician will perform startup and provide training for owner and site personnel.
PoolPak recommends that all troubleshooting, service, and maintenance be completed by an authorized service
technician for the best service experience with the equipment. If a labor or parts warranty claim is expected,
PoolPak service must be contacted before any work is to be performed. Refer to the standard ComPak warranty
for complete details.
Intended Users
This manual is to be made available to all persons who are required to install, operate or service the product
or any other associated operation. Please ensure that a copy of this manual is presented to the end customer.
Additional copies of this manual are available on request and on the PoolPak website, www.PoolPak.com.

www.poolpak.com | 800-959-77258| ComPak®Series - Installation, Operation and Maintenance
SECTION I: INDOOR POOL DESIGN
Introduction
Creating an ideal environment for indoor pool facilities
Indoor pool facilities are unlike any other structure in design, construction and maintenance requirements.
Humidity, air and water temperatures are especially difficult to control, and improper management usually results
in an uncomfortable environment, excessive operating costs and possibly serious structural damage. Effectively
controlling these special conditions require control hardware and control sequences specially engineered for
large commercial indoor pool applications. The PoolPak System utilizes an environmental control package
designed to meet all special needs of the indoor pool environment, while reducing energy usage and building
maintenance costs.
Operating Cost
Energy consumption is a direct function of the variables necessary to satisfy the occupant and protect the
facility. These variables include space heating and cooling, water heating, humidity removal and ventilation.
Maintaining ideal and precise environmental conditions has a fairly high cost of operation. And for a majority of
the indoor pools, regardless of geographic location, require water and space heating 70% to 90% of the year.
Application
Moisture Loads
An indoor swimming pool produces large quantities of water vapor through evaporation, which accounts for
roughly 95% of the pool water heat loss, making the water colder. This excessive humidity will form damaging
condensation unless removed from the building. In the past, the method of removing this water vapor was
by ventilating an otherwise energy efficient building, exhausting the humid air and the energy it contained.
Additional energy was used to bring in and heat the make-up air and to heat the pool water.
More cost effective technologies offer an alternative method adding heat exchangers and mechanical heat
recovery systems with many useful options. The ideal solution to removing the water vapor from the pool area is
to convert the latent (wet) heat contained in the moist air back into sensible (dry) heat, placing it back into the
pool water and air.
Effects of Moisture
Excess humidity in natatorium structures may be readily apparent as condensation on cool surfaces such as
windows and outside doors, the growth of mildew or mold, and, when coupled with poor pool chemistry, the
accelerated corrosion of metals. In its less obvious forms, moisture may penetrate walls and ceilings and cause
rot that becomes noticeable only when large scale structural failure occurs. Humidity levels are also a major
factor in the comfort of pool users.

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ComPak®Series IOM
POOL TYPE WATER TEMP (°F) AIR TEMP (°F) ROOM RH %
Recreational Pool 80 to 85 Water Temp + 2 55 to 60
Therapy Pool 86 to 92 86155 to 60
Whirlpools 99 to 104 86155 to 60
Table 1-1. Typical Pool Water & Air Temperature Set-Points
1Normally max 86°F to minimize overheating of occupants
Indoor Air Quality
Pools and water parks with water features have a higher evaporation rate than a standard pool because of
the increased water surface area. Chloramines (See Pool Water Chemistry below), which are present in the
water, become more concentrated in the air as the “water to air” interactions increase, affecting the indoor air
quality. A strong “chlorine” odor is an indicator of poor pool water chemistry, and is generally offensive to the
occupants. Higher levels of chloramines can cause skin/eye irritation and respiratory problems commonly known
as “lifeguard lung”.
Most poolrooms are designed with a minimum ventilation rate to dilute the airborne pollutants generated from
the chemical interactions in the pool water. Typically these rates are based on ASHRAE standard 62.1 and
dictated by local codes at about 0.5 CFM/ square foot of pool and deck area, but depending on the pool
water chemistry the ventilation rate may not always be adequate for good poolroom indoor air quality.
However, increasing ventilation rates can significantly add to the cost of operation. Including energy
conservation strategies such as heat recovery, airflow measurement and CO2 based control help control costs
while improving indoor air quality.
Depending on the geographic location and season of the year, treating the outside air has a direct effect on
energy consumption. Some facilities prefer higher than minimum ventilation rates, up to 100% of OA,
to maximize indoor air quality, but the cost of treating this air can be significant.
Occupant Comfort
Occupant comfort in a natatorium is easy to understand. If you ever swam in an outdoor pool on a cold,
windy day, or exited a pool in a dry, desert location--you will probably notice an immediate chill. The opposite
is true where high humidity is not adequately controlled either through ventilation or by mechanical means.
The moisture level can reach such a state where it is oppressive or stuffy. Common complaints are difficulty in
breathing and the room being perceived to be warmer than the actual dry bulb temperature would suggest.
Regardless of the source of discomfort, users will not enjoy the facility if water/air temperatures and humidity
levels are not within a narrow range. Ideal water temperature is around 82° with the air temperature about 2
degrees F higher to prevent chilling when exiting the pool and to minimize evaporation from the pool surface.
Here are some recommended temperatures for poolrooms, which can be adjusted to meet specific needs of
bathers. In general, “active” poolrooms are maintained at lower temperature ranges so the users don’t overheat,
warmer temperatures are more common for seniors or children or less active pools.
The desirable humidity range is generally between 50% and 60%--greater than 60% creates a sticky feeling
and/or difficult breathing, and low humidity results in evaporative cooling on the bather’s skin, resulting in a
chill.
Poor air movement caused by improper duct placement within the poolroom will also lead to occupant
discomfort. Excessive supply air blowing on bathers can create drafts, while uneven air distribution may create
stagnant zones within the space.

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POOL SPA
IDEAL MIN MAX IDEAL MIN MAX
Total Chlorine (ppm) 1.0 - 3.0 1 3 3.0 - 5.0 110
Free Chlorine (ppm) 1.0 - 3.0 1 3 3.0 - 5.0 110
Combined Chlorine (ppm) 0 0 0.3 0 0 0.3
Bromine (ppm) if applicable 2.0 - 4.0 2 4 3.0 - 5.0 210
pH 7.4 - 7.6 7.2 7.8 7.4 - 7.6 7.2 7.8
Total Alkalinity (ppm) 80 - 100 80 180 80 - 100 60 180
TDS (ppm) 1000 - 2000 300 3000 1000 - 2000 300 3000
Calcium Hardness (ppm) 200 - 400 150 1000 200 - 400 150 1000
Calcium Acid (ppm) 30 - 50 10 100 30 - 50 10 100
Table 1-2. Recommended Pool Water Chemistry
Pool Water Chemistry
Water chemistry in swimming pools is critical for the health of the bathers and the condition of the enclosure and
components. An enclosure with poor water chemistry has a noticeable “chlorine” smell, which is an indication of
high chloramines in the air. Not only does this have an effect on the water, but it affects the bathers and the air
they breathe.
Dehumidification systems are not designed to remove the effects of incorrect pool water chemistry.
Dehumidification/ventilation equipment is not designed to remedy the effects of poor pool chemistry, but is
designed to deliver prescribed ventilation to manage smaller amounts of pollutants generated from normal pool
activity. Pool water chemistry is a part of daily maintenance and it is recommended that the users follow the
current National Spa and Pool Institute standards.
For more information, review the Controlling Chloramines with Proper Chlorine Management chapter in the
Indoor Pool Water Chemistry publication at the online PoolPak®Educational Library.

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ComPak®Series IOM
SECTION II: PRINCIPLES, FUNCTIONS,
AND FEATURES
The Mechanical Dehumidification System
Principles of Operation
The PoolPak System is a complete environmental control system designed expressly for indoor swimming pool
enclosures. It takes into account two important factors: the swimming pool occupant (personal comfort) and the
swimming pool environment (the physical structure and surrounding furnishings).
The swimming pool enclosure can be a hostile environment for equipment, decor and building structures.
A PoolPak®System’s major function is to dehumidify the pool enclosure air through a vapor compression cycle.
During this cycle the PoolPak®System recycles the sensible and latent heat and places it back into the pool water
and air as needed. This recycling process saves money and keeps your pool environment efficient and safe.
Solid state microprocessor technology, working in conjunction with sensors, continually monitors water and air
conditions provide superior occupant comfort. Unlike typical outside air ventilation systems, a PoolPak®System
recycles energy and blankets the walls and windows with warm, dry air.
PoolPak®dehumidification systems reduce the energy input required to maintain pool water and air temperatures.
By dehumidifying the air and recycling the latent energy back into the pool air and water, the unit will reduce
operating costs when compared to conventional heating and ventilating systems. Pool water and enclosure
heating are still required but with greatly reduced requirements.
A PoolPak unit, when matched correctly to the evaporation rate of the pool water and overall dehumidification
requirements, will efficiently maintain the pool air at relative humidity levels between 50% and 60%. It should
be noted that a lower evaporation rate occurs when the pool enclosure’s air temperature is maintained above
the pool water temperature. Evaporation losses, and the energy required to maintain desired room conditions,
will dramatically increase if the air temperature is allowed to fall below the pool water temperature. It is
recommended that the continuous dry bulb temperature entering the evaporator of the PoolPak®unit not fall
below 75°F.
PoolPak recommends that backup heating equipment for both pool water and pool enclosure air is capable of
carrying the full system heating requirements. This makes for a well-designed system that will provide the least
amount of pool down time if unforeseen system problems occur. Building conductive loads and other losses must
be taken into consideration.
Automatic Control of Air Temperature and Humidity
An integral part of any PoolPak®System is a proven microprocessor control system which automatically senses
and maintains comfort conditions. Sensors detect changes in humidity and air temperature in the indoor pool
environment and quickly regulate supply air conditions to meet set point comfort levels, even during periods of
unusually heavy pool use.
To prevent condensation on walls and windows, The PoolPak®System automatically adjusts humidity in
response to changes in wall or window surface temperatures. As the seasons and weather conditions change,
the PoolPak®System changes its own mode of operation. Throughout the year, PoolPak®thinks “efficiency” and
automatically selects the least expensive energy source for the poolroom conditions.

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PoolPak®models include a factory mounted and wired space temperature and humidity sensor at the return air
opening of the unit. Refer to the installation section for mounting location. Caution should be exercised. When
the outside air is to be introduced into the space for ventilation, adequate exhaust capacity via an integral (or a
separate external fan) must be specified to ensure the poolroom remains slightly negative. An inadequately sized
exhaust system may result in damage to the structure and pool odors may be forced into other areas of
the building.
Room Dew Point Control
PoolPak units with the CommandPak® Control System (CPCS) controller operate using an advanced type of
control called dew point temperature control. This method of control is more accurate than conventional relative
humidity control. The main purpose of a dehumidification system is to maintain the amount of moisture in the
pool area below a level that would cause damage to the building. Relative humidity is a measurement of the
percentage of moisture which is in the air at a given dry bulb temperature in proportion to the maximum amount
of moisture that could be contained at this particular dry bulb temperature. Warmer air can hold more moisture
than colder air and, therefore, changes in dry bulb temperature will change the relative humidity reading without
any change in the actual amount of moisture in the air. The amount of moisture in the air is expressed as “grains
of moisture per pound of dry air” and is directly related to the dew point temperature.
The CPCS-PCP uses dew point control to operate the PoolPak® unit and maintain the moisture level below the
setpoint. The space dry bulb temperature and relative humidity determine the dew point temperature. By varying
the space temperature and space relative humidity set points, the dew point set point is changed. When the
space dew point temperature rises more than 1/2 degree Fahrenheit above the space dew point temperature
set point, the CPCS-PCP controller energizes the compressor for dehumidification. As the dew point temperature
drops more than 1/2 degree Fahrenheit below the dew point temperature set point the controller de-energizes
the compressor.
ComPak Operation
The ComPak® fan draws in warm, moist air from the pool enclosure. This air passes through the evaporator
(dehumidification) coil and gives up heat energy to the refrigerant which is in a cool, liquid state. This exchange
of energy causes the air temperature to fall below its dew point, resulting in moisture condensation on the
evaporator coil. The moisture formed falls into the unit’s condensate drain pan. After passing through the
evaporator coil, the refrigerant becomes a cool gas.
The refrigerant enters the unit’s compressor, where it is compressed into a hot gas. While in the compressor, the
refrigerant absorbs the energy used to operate the compressor. This hot gas refrigerant then travels either through
an air reheat coil, the pool water condenser or to an optional auxiliary air conditioning condenser, which may
be either air or water cooled. If air heating is called for, the air reheat coil is used. The hot refrigerant exchanges
energy with the cooler, dehumidified air coming from the evaporator coil. This causes the temperature of the air
to rise for heating.

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ComPak®Series IOM
Figure 2-1. ComPak® AW and HCD Typical Refrigerant System Schematic
If pool water heating is required (AWH models only), the hot gas flows into a pool water condenser, where
it adds energy to the incoming pool water. This heats the pool water while the refrigerant is condensed into
a warm liquid. If space cooling is called for, the refrigerant flows to the auxiliary air conditioning condenser
bypassing the air reheat coil and pool water condenser and allowing cool air from the evaporator coil to provide
space cooling.
CommandPak®Control System
Overview
The CPCS-PCP controller is a micro-processor based system that maintains pool enclosure humidity and air and
water temperatures at optimum levels automatically. It is also possible to monitor this critical data via the Internet
using the optional “Virtual-Tech®Remote Access Package (RAP). This also allows the controller to be accessed
from the factory via the internet or a telephone line. (AWH and HCDH only)
The CPCS-PCP is designed to work with the ComPak® dehumidification system to provide an environment that
is both comfortable and cost effective. It controls unwanted humidity in the pool enclosure and helps to prevent
unsightly condensation from forming on surfaces.
The CPCS-PCP provides accurate control and allows the user to monitor system parameters and change setpoints
easily. For this purpose, a remote interface unit with a text display and keypad is provided. The remote panel
should be mounted outside the pool space, in an office or in the equipment room. (The CPCS-PCP remote
interface unit contains no sensors.) All setpoints are saved in the memory of the CPCS-PCP and are not erased
in the event of a power failure. Critical operating data can be easily accessed by a service technician for the
purpose of system operation and evaluation.
Humidity Control
As the dewpoint temperature within the pool enclosure rises above the desired setpoint, the CPCS-PCP activates
the compressor within the ComPak® to begin the dehumidification process. If the space temperature is below the
desired setpoint, the heat recovered during dehumidification is directed to the air reheat coil for space heating.
If the pool water temperature is also below the setpoint, some of the recovered heat is directed to the pool water
condenser (model AW only) for pool water heating. If neither air heating nor pool water heating is required,

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the recovered heat can be directed to an auxiliary air conditioning condenser if the system is so equipped. If the
system does not include an auxiliary air conditioning condenser, the CPCS-PCP will direct the recovered heat to
the air reheat coil until the need for dehumidification is satisfied.
Cold Surface Temperature Humidity Reset
The CPCS-PCP control system includes a sensor that measures the temperature of the coldest surface in the pool
enclosure, usually an exterior window or door frame. When the temperature of this surface approaches the
dewpoint temperature of the space, the controller lowers the humidity setpoint to activate dehumidification. This
function helps to prevent condensation on the cold surface.
Space Heating
When the compressor is running, the CPCS-PCP directs the recovered heat to the air reheat coil. Space heating
will continue until the space temperature reaches the setpoint. The CPCS-PCP will activate the auxiliary
space heating system if the ComPak® unit is unable to satisfy the heating need with heat recovered during
dehumidification. The CPCS-PCP will activate the auxiliary pool water heating system if the water temperature
cannot be satisfied with recovered heat. An auxiliary pool water heater must be supplied as part of the pool
water pump and filter system.
Networking Multiple Units
CPCS-PCP networking allows up to four ComPak® units to be connected together. The units will work with each
other to control water temperature, air temperature, and relative humidity. Networked ComPak® units have all
the features of standard ComPak® plus the ability to control water temperature in multiple pools. They also allow
system dehumidification capacity to be staged. All units on the network are accessible from a single remote
interface unit for convenience.
Space Cooling (Optional)
If space cooling is required and the unit is equipped with an auxiliary air conditioning condenser (air-cooled or
water-cooled), the CPCS-PCP will activate the space cooling mode of operation. In this mode, the heat removed
from the space air will be directed to the auxiliary air conditioning condenser. The air cooling mode of operation
is independent of the need for dehumidification.
When the ComPak® unit is equipped with a field supplied economizer, the CPCS-PCP will automatically select
the most economical method for space cooling. An economizer utilizes outside air rather than the refrigeration
system to achieve space cooling. A sensor connected to the CPCS-PCP monitors the outside air temperature.
When appropriate, the controller will disable the compressor and bring in cool outside air for economical
operation.
A separate exhaust system must be installed to ensure negative room pressure during the economizer mode.
Water Heating (Models AWV and AWH only)
If the pool water temperature is also below the set point, some of the recovered heat is directed to the pool
water condenser for pool water heating. Heating can only take place during the dehumidification when heat
is captured in the refrigeration circuit. This is only available on the Model AW, which is equipped with a pool
water condenser.

© 2017 PoolPak LLC. All rights reserved. ComPak®Series - Installation, Operation and Maintenance | 15
ComPak®Series IOM
Features and Options
Standard Items Factory Mounted
• Evaporator (dehumidification) coil
• Air reheat coil (hot gas reheat coil)
• Bottom, top (for indoor installations) or horizontal supply air configuration
• Filters and filter rack
• Air temperature and relative humidity sensor
• Compressor suction and Discharge pressure transducers
• Compressor suction temperature
Standard Items Factory Supplied for Field Installation
• CPCS-PCP control interface device
• Cold surface temperature sensor
• Outside air temperature sensor (with economizer control kit option only)
• Pool water temperature sensor (AW models only)
System Options
• Remote air-cooled condenser for space air conditioning
• Capability of introducing up to 30% outside air
• Economizer control
• Network multiple units
• Remote monitoring via Internet (AWH and HCDH only)
• Weatherproofing for outdoor installation (AWH and HCDH only)
• A factory-mounted water-cooled condenser with a refrigerant head-pressure controlled water regulating valve
for space air conditioning. Chilled water and closed loop cooling tower water may be used for the water-
cooled condenser loop. Never use ground water for the water-cooled condenser. Consult the factory for
cooling tower applications.

www.poolpak.com | 800-959-772516 | ComPak®Series - Installation, Operation and Maintenance
RoofComPak®Series
PoolPak has taken their most popular ComPak® configuration and repacked it as a self-contained, all-in-one
dehumidification system. This product comprises the RoofComPak® Series. This offering merges a highly reliable
ComPak® AWH or HCDH base system with an integral air-cooled condenser and either an integral gas furnace
or an electric heater. The RoofComPak Series is only available in horizontal configuations which can be utilized
over a wide range of popular applications. The ten and twelve ton models are ideally suited for applications
having a surface area between 1,200 sq. ft. and 2,500 sq. ft.
Design Features
The RookPak Series is designed with features that provide cost savings and greater reliability over traditional
systems. Key features are:
• Single, self-contained unit can be installed with one crane lift
• Enclosed refrigerant system reduces refrigerant charge
• Factory assembly ensures wiring and brazing are accomplished under ideal situations
• Single power connection to minimize field wiring. (Separate power connection required for integral
electric heat.)
Durable Construction
• Heavy duty construction designed for outside installation to withstand the elements
• Double-wall construction enhances product longevity
• Designed for quiet operation
Rooftop Installation
• Requires only one mounting curb
• Bottom return air
• Bottom supply air
• Side outside air
• Can also be installed indoors with a remote ACC
Microprocessor Controller
• Utilizes PoolPak®proven CPCS-PCP, microprocessor based contol technology
• Incorporates Virtual-Tech® Remote Access Package (RAP) to allow system access via the ethernet/internet
• RAP is easily adaptable to BAS systems including BACnet (MS/TP & IP), LonWorks, and Modbus
Heating Packages
• 200, 240, 280 or 320 MBH indirect gas furnace for consistent temperature control
• 20kW or 30kW electric heater (requires separate power connection)
• Hot water coil using PoolPak® standard Hycor® Blue coil or optional Electro-Guard® coils
Self-Contained Air-Cooled Condensing Section
• Built-in Air Cooled Condenser (ACC) reduces cost and eliminates field piping
• Utilizes efficient dual rotary blade fans
• Efficient to 105°F ambient outside air temperature
• Choice of coil coatings for specific applications

© 2017 PoolPak LLC. All rights reserved. ComPak®Series - Installation, Operation and Maintenance | 17
ComPak®Series IOM
Evaporator Coil Options
• Hycor® Blue (standard)
• Electro-Guard® Plus
• All copper
Electronically Commutated (EC) Fans
• Integral fan motor and drive for easy fan speed adjustment
• Direct drive reduces system maintenance
• Quieter, lower energy use
Unique Outside Air System
• Houses adjustable louvers and filter
• Convenient external filter access
• Swing-out door-mount design for easy service access to fan motor and belts
Cupronickel Water Heat Exchanger
• Supplies 100% of available recycled energy to the pool water
• Reaches water temperature set-point conditions faster
• Efficiently maintains the water temperature set-point
• Redirects heat only after space temperature is satisfied

www.poolpak.com | 800-959-772518 | ComPak®Series - Installation, Operation and Maintenance
Technical Summary
Table 2-1. RoofComPak® Technical Data
Dimensional Data
Figure 2-2. PCP RoofComPak® Dimensions
RoofComPak®Weights
AWH/HCDH 3500/4000 with integral gas or electric heat, remote ACC 2900 lbs
AWH/HCDH 3500/4000 with integral gas or electric heat, integral ACC 3700 lbs
AWH/HCDH 3500/4000 with no integral auxiliary heat, integral ACC 2700 lbs
MODEL NUMBER AWH / HCDH 3500 - 10 TON AWH / HCDH 4000 - 12 TON
Pool Size (Sq. Ft.) 1,200 - 2,000 1,400 - 2,500
Reheat Capacity (MBH) 170 200
Moisture Removal (Lb/Hr@82°F/60%RH) 63 70
Pool Water Flow (GPM) 26 28
Pool Water Condenser PD (FT WC)* 20 30
Pool Water Condenser Capacity (MBH) 170 200
Outside Air (CFM)(Nominal) 0 - 2,800 0 - 2,800
Total Supply Airflow CFM (Maximum) 3,500 - 8,000 4,000 - 8,000
Refrigerant Charge (lbs) 81 83
Dimensions (in inches) with integral air-cooled condenser and gas furnace
Length 264 264
Width 57.4 57.5
Height 52.5 52.2
OA
45.3
15.2
13.4 44.0
FRONT VIEW
52.5
SA
120.0 C.G.
* Side return air available; horizontal return air available without integral air-cooled condenser
LEFT VIEW
RA*
264.0

© 2017 PoolPak LLC. All rights reserved. ComPak®Series - Installation, Operation and Maintenance | 19
ComPak®Series IOM
PERFORMANCE AT 82°F AIR AND 80°F WATER POOL WATER CONDENSER
(VENTED)
MODEL AW RETURN AIR
CFM
RETURN AIR
RH (%)
MOISTURE
REMOVAL (LBS/HR)
SENSIBLE COOLING
CAPACITY (MBH)
ACC MAX. HEAT
REJECTION (MBH) GPM PRESSURE DROP FT WATER
0550 900 60 11.1 13.6 31.2 4 6
50 8.5 15.6 30.1
0800 1600 60 15.7 22.1 47.5 610
50 11.7 24.9 45.7
1200 1700 60 20.8 26.9 57.9 10 24
50 15.5 30.5 55.5
1400 2300 60 26.0 38.4 76.6 10 8
50 18.8 43.4 73.6
1800 2500 60 30.9 41.8 89.1 12 12
50 22.9 47.8 86.1
2600 3300 60 45.1 54.6 120.9 13 6
50 35.0 60.6 115.6
3500 4300 60 59.7 78.9 170.0 24 17
50 44.2 89.8 163.4
4000 4500 60 70.4 87.6 197.5 28 24
50 52.4 100.1 189.3
SECTION III: PERFORMANCE AND SIZING
ComPak®Performance
Detailed performance and dimensional information are provided in the PoolPak®WAVES Selection Software.
ComPak®AW (AWV, AWH) Performance
Table 3-1. ComPak® AW Performance Summary

www.poolpak.com | 800-959-772520 | ComPak®Series - Installation, Operation and Maintenance
ComPak® HCD (HCDV, HCDH) Performance
Table 3-2. ComPak® HCD Performance Summary
PERFORMANCE AT 82°F AIR AND 80°F WATER
MODEL HCD RETURN AIR CFM RETURN AIR RH
(%)
MOISTURE REMOVAL
(LBS/HR)
SENSIBLE COOLING
CAPACITY (MBH)
ACC MAX. HEAT
REJECTION (MBH)
0550 900 60 10.2 13.2 30.5
50 7.7 15.2 29.5
0800 1600 60 14.5 20.8 46.2
50 10.3 23.9 44.4
1200 1700 60 19.0 25.2 56.4
50 14.5 28.4 54.4
1400 2300 60 24.1 36.2 74.7
50 17.9 40.5 71.8
1800 2500 60 28.9 41.8 88.1
50 20.9 47.4 84.6
2600 3300 60 41.0 53.5 118.8
50 31.3 59.7 113.8
3500 4300 60 56.9 80.5 169.9
50 41.5 95.2 166.8
4000 4500 60 66.5 86.2 195.3
50 50.2 97.9 187.8