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PoolPak ECCIII Users Guide
ECCIII Users Guide
SUPERSEDES:
Nothing
FORM NO:
M51SV-EC3UG0310
PoolPak ECCIII Users Guide
Supplement to Form NM-1(1198)
TABLE OF CONTENTS
INTRODUCTION
2
FEATURES
2
INSTALLATION
2
FIELD WIRING DIAGRAM
3
OPERATION
7
SERVICE
8
MULTI-UNIT NETWORKING
26
TROUBLESHOOTING
28 2
INTRODUCTION
The ECCIII is the latest advance in environmental control technology. It is a microprocessor based
system that will maintain natatorium conditions at optimum levels, automatically. It is also the first
dedicated controller for commercial pool dehumidifiers to utilize the internet for remote monitoring of all
critical parameters.
The ECCIII is designed to work with the PoolPak dehumidification system to provide an environment
that is both comfortable and cost effective. It controls unwanted humidity in the natatorium and helps
to prevent unsightly condensation from forming on surfaces.
The ECCIII provides accurate control and allows the user to read system parameters and change
setpoints easily. For this purpose, a remote mountable interface unit with a text display and keypad is
provided.
FEATURES
When conditions permit, the Smart Economizer function utilizes outside air for heating, cooling, and
dehumidification to reduce energy consumption.
The optional remote access package (RAP) allows all critical parameters of the system to be
monitored over the internet using web browser software. This package also provides advanced data
logging and alarm management, including the ability to email critical alarms to the appropriate service
personnel.
Advanced diagnostic capabilities provide a detailed fault history log, including real time monitoring of
fan and compressor motor currents.
The remote interface unit allows complete monitoring and control of the system locally or from a
remote location up to 1000 feet away. The high contrast, backlit text display is easy to read in all
lighting conditions.
A Building Automation System interface enables direct connection to a LonWorks or Modbus based
network.
INSTALLATION
The majority of the ECCIII control system is factory installed inside the PoolPak dehumidifier. The
field wiring diagram illustration shows the sensors and other devices necessary for operation of the
ECCIII equipped PoolPak. The diagram also shows how each device is connected to the PoolPaks
control panel. Following the field wiring diagram is a description of each part of the system, including
how to install it. The numbers beside each part on the wiring diagram correspond to the numbers in
the text that follows. 3
ECCIII FIELD WIRING DIAGRAM
FIGURE 1 4
1. Remote Interface Unit (RIU)
The remote interface unit allows the user to view space temperature and relative humidity, pool water
temperature, and damper positions. It also provides the ability to change setpoints, receive alarm
notifications, and perform advanced diagnostic functions.
The RIU should be mounted in a convenient location outside of the natatorium that is protected from
splashing pool water and corrosive air. The ambient temperature of the mounting location must
always be greater than 32
°
F. The maximum distance from the PoolPaks control panel is 1000 feet.
For distances greater than 1000 feet, contact the factory.
The ECCIII includes a 7-foot long, black RJ25 cable. If the RIU is to be mounted directly to the
PoolPak unit, this cable can be plugged directly into port J10 on control module CM1 in the PoolPaks
control panel.
For remote mounting of the RIU, the installing contractor must run a 6 conductor (3 twisted pairs), 16 -
20 AWG cable from the PoolPaks control panel to the remote location. One end of this cable will
terminate on terminal block T17 in the control panel (See FIGURE 1). The other end will terminate on
a factory supplied RJ25 jack. The wires for terminals T17.1 and T17.2 should be from the same
twisted pair. The second pair should be used for T17.3 and T17.4 and the third pair for T17.5 and
T17.6. Proper polarity and connection is essential for correct operation of the RIU. Improper wiring
can cause permanent damage. Please review the color code and connections to the RJ25 jack
carefully.
The RIU includes a mounting bracket that is designed to fit a standard, single gang box mounted
horizontally in the wall. The RJ25 jack and most of the black cable should be placed inside the box
before installing the mounting bracket. Use the screws that come with the box to secure the bracket.
Using an extra deep box will make it easier to fit the RJ25 cable and jack inside. After the mounting
bracket is secured to the wall, connect the RJ25 cable to the jack on the back of the RIU. Slide the
RIU onto the bracket until it snaps into place.
An extra RJ25 cable is supplied to allow direct connection of the RIU at the PoolPak control panel
during service or startup.
2. Outside Air Temperature and Relative Humidity Sensor
The ECCIII uses an outside air temperature and humidity sensor to make smart economizer decisions
and to prevent air-cooled condenser operation during low ambient conditions.
The sensor should be mounted on the exterior surface of a north-facing wall without exposure to direct
sunlight. Wire entry to the sensor terminal box is provided with a compression type fitting suitable for
cable diameters from 1/8 to 1/4.
Do not connect a conduit directly to the sensors terminal box. Use a small piece of UV resistant cable
to make the transition from the conduit to the sensor. A direct conduit connection will allow
condensation to form inside the sensor resulting in permanent damage.
Orient the sensor as shown on the included instruction sheet. Proper orientation of the sensor and
radiation shield is essential.
Carefully review the wiring connections shown on the field-wiring diagram (See FIGURE 1). Improper
connection may damage the sensor and/or the ECCIII control module. The cable should be four
conductor (2 twisted pairs), 16 - 20 AWG, copper. 5
3. Surface Temperature Sensor
This sensor measures the temperature of the coldest surface in the pool enclosure. When the
temperature of the surface drops to within 5°F of the space dewpoint, the dewpoint setpoint will
automatically be reset downward to help prevent condensation on the cold surface. It should be noted
that this function will not be able to compensate for lower quality building materials such as single
pane glass or non-thermally broken window frames.
The sensor should be mounted on an exterior window or skylight frame not subject to direct sunlight.
In cases where there are no exterior doors or windows, the sensor should be mounted on the interior
surface of an exterior wall. The sensor housing has a single 1/8 hole for mounting.
Wire as shown on the field-wiring diagram (See FIGURE 1). Electrical connection should be made
with two conductor (one shielded twisted pair), 16 20 AWG, copper cable. Connect the shield drain
wire to ground at the PoolPak control panel end only.
4. Smoke Purge Input
The ECCIII can receive a contact closure from a building fire and smoke control system. This input
must be connected to dry (voltage free) contacts only. When this input is activated, the ECCIII will
energize the return fan only and open the exhaust air damper to 100%, while closing the outside air
intake and recirculation dampers to 0%. The compressors will be disabled during this mode and the
RIU will display an alarm message indicating that smoke purge mode has been activated. Using the
ECCIII configuration menu, it is possible to set this input to be active on open or active on close.
5. Fire Trip Input
The ECCIII can receive a contact closure from a building fire and smoke control system. This input
must be connected to dry (voltage free) contacts only. When this input is activated, the ECCIII will
shut down the compressors, all unit mounted fans, and close the outside air and exhaust air dampers.
The RIU will display an alarm message indicating that fire trip mode has been activated. Using the
ECCIII configuration menu, it is possible to set this input to be active on open or active on close.
6. Occupied Mode Input
The ECCIII can receive a contact closure from a building automation system (BAS) or a time clock to
override the occupancy schedule stored in the controllers memory. This input must be connected to
dry (voltage free) contacts only. If the schedule is currently requesting unoccupied operation,
activating this input will force the controller into occupied mode. Although this input overrides the
ECCIII internal schedule, it will not override commands sent to the controller via the LonWorks or
Modbus interfaces.
7. Purge Mode Input
The ECCIII can receive a contact closure from a remote mounted switch or BAS. This input must be
connected to dry (voltage free) contacts only. When activated, the controller will shut down the
compressors and open the outside air and exhaust air