1. Mounting the Equipment
ECOMMAND 4 Control Center
The ECOMMAND 4 is contained in a raintight enclosure that is suitable for outdoor mounting. The
control must be mounted a minimum of 5 ft. (2 meters) horizontal distance from the pool/spa (or more, if
local codes require). The Control Center is designed to mount vertically on a flat surface with the knock-
outs facing downward. Because the enclosure also acts as a heat sink (disperses heat from inside the box),
it is important not to block the four sides of the control. Do not mount the ECOMMAND 4 inside a panel
or tightly enclosed area.
When selecting a location, note that the standard cables supplied with the temperature sensors, and valve
actuators (if applicable) are all 15 ft. (5m) long.
Temperature Sensors
Three sensors are included with the ECOMMAND 4. A water sensor and an air sensor must be installed
at all times for proper operation. A solar sensor is required if the solar function is enabled.
Water Sensor
This sensor is used to measure the pool/spa temperature and is installed in the filtration plumbing after the
filter but before either the solar or conventionally fueled heaters—refer to the plumbing overview diagram.
1. Drill a 3/8” (10mm) diameter hole in the PVC piping and remove all chips and burrs.
2. Insert sensor until O-ring collar sits flush on the hole.
3. Position hose clamp over the sensor and gently tighten until O-ring makes an adequate seal. Do not
overtighten.
4. For maximum temperature accuracy, cover the sensor and 3” (6cm) of pipe on either side with
insulation and white paint.
Air Sensor
Mount the air sensor outdoors.
IMPORTANT: Mount the air sensor out of direct sunlight.
Solar Sensor
For solar applications, mount the sensor near the solar collector array so that it is exposed to the same
sunlight as the collectors. Use additional cable (20 AWG) if necessary.
Optional AQL2-SS-RF Remote Control (included with HPC-4-RC, HPC-4-
ACT-RC)
The ECOMMAND 4 is compatible with AQL2-SS-RF wireless remote control only. The AQL2-SS-RF
is a waterproof portable remote control that is designed to be used in and around the pool/spa area. The
AQL2-SS-RF floats and can be left in the water for easy access. A single AQL2-BASE-RF Base Station
must be installed on the ECOMMAND 4 in order to use this remote control. The maximum distance
between the wireless remote and the base station on the ECOMMAND 4 main control unit is 400 feet
(120m) line of sight or 200 feet (60m) through walls, etc. If in doubt about the distance, test operation
before installing the remote. All wireless models require the user to run the “Teach Wireless” routine in the
Settings Menu. This information can be found in the ECOMMAND 4 Operation Manual.
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3. Once the heater is running, you can verify the “heater cooldown” feature (optional - see Configuration
Menu/Heater Config.) is operating properly:
• Press the “Filter” button once (for 2 speed pumps, this may require 2 pushes of the “Filter”
button).
• The heater should turn off (“Heater” LED off) and the “Filter” LED will flash to indicated heater
cooldown is active.
• The display will periodically indicate that the filter pump is on for heater cooldown and show the
minutes remaining.
• The pump will automatically turn off at the end of the 5 minute heater cooldown period.
For more detailed instructions on control and operation of the ECOMMAND 4 system, refer to the
Operation Manual.
Service Mode
Service mode disables all automatic control operation and is intended to be used when servicing the pool
system. To enter service mode, push the SERVICE button once on the main unit keypad. This will initially
turn all outputs off and then allow you to turn outputs on/off manually at the main display (only). In service
mode, the buttons on the optional spa side remote will turn outputs off, but will not turn any output on.
Heater control outputs and solar control outputs are prevented from turning on if the water temperature
exceeds 104ºF (40ºC).
Pushing the SERVICE button again will enter a timed service mode. Service operation as described
above will continue for 3 hours, then automatically return to normal operation.
Push the SERVICE button once more to exit out of Service mode.
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