Hayward Heaters
Refer to the instructions in the heater manual for “2-wire Remote Thermostat” operation under “Remote
Control Connections” and the diagram below:
1. Turn off power to heater.
2. Wire ECOMMAND 4 to terminals 1 & 2 (see diagram).
3. Leave jumper attached to terminals 4 & 5.
4. Move “BYPASS” dipswitch on heater circuit board to “ON” position (up).
5. Turn heater power back on.
6. Switch heater to either “Pool” or “Spa” (it doesn’t make any difference which is selected, the
ECOMMAND 4 will take control).
7. Heater display should be “bO” (for “bypass On).
8. Heater will fire whenever ECOMMAND 4 requests (when ECOMMAND 4 “Heater” LED is illumi-
nated).
Pentair/Purex/MiniMax
1. Turn power off to heater.
2. Remove factory installed jumper from the “Ext Switch” connector.
3. Wire the ECOMMAND 4 to the “Ext Switch” connector as shown below.
4. The wires to the ECOMMAND 4 must be separated from any line voltage wires. Failure to follow
these instructions may cause erratic operation of the heater.
5. Set the Power (Thermostat Select) switch to either “Pool” or “Spa”.
6. Set the “Pool” and “Spa” thermostats to their maximum settings.
10
Highest Speed
This is the highest speed that the variable speed pump is allowed to run at. It is used as the
upper limit in the High Speed Settings Menu. Also, this is the speed that the pump will run
at during the first 3 minutes of operation anytime the pump has been off for more than 30
seconds. Set highest speed from 20% to 100% (default).
Freeze Protection
Freeze protection is used to protect the pool and plumbed equipment against freeze damage.
If freeze protection is enabled and the AIR temperature sensor falls below the freeze threshold
(see below), the ECOMMAND 4 will turn on the filter pump to circulate the water. If “Pool
and Spa” is selected in the Pool/Spa sub-menu (see page 22), the valves will also alternate
between the pool and spa every 30 minutes and the filter pump will turn off while the valves
are turning. The chlorinator will not operate if freeze protection is the only reason the pump
is running.
Freeze Protection Speed
This menu only appears if freeze protection is enabled and the pump is configured for 2-
speed or variable speed pump operation. This is the speed that the pump will run at during
freeze protection operation. Select high (default) or low speed operation.
Freeze Protection Temperature
Select the temperature to be used for freeze protection. Temperature is adjustable from 33ºF
- 42ºF (1ºC - 6ºC). 38ºF (3ºC) is default. This threshold will be used for all outputs that have
freeze protection enabled.
Heater1 Config.
+ to view/change
Heater1
Disable
Heater1 Cooldown
Disabled
Heater1 Extend
Disabled
Push to access heater options
Toggle between Enabled and Disabled (default) Heater 1
Toggle between Enabled and Disabled (default) Heater 1 Cooldown
Toggle between Enabled and Disabled (default) Heater 1 Extend
Move to previous/next configuration menu
Move to next menu item or previous/next configuration menu
Move to next menu item
Move to previous/next configuration menu
if “Heater1” is enabled
if “Heater1” is enabled
Allow Low Speed
Disabled
Toggle between Enabled and Disabled (default)
next menu item or previous/next configuration menu
if “Heater1” is enabled and
1-speed filter pump is not selected
Heater1
If the heater is “Enabled”, the heater relay will turn on when the water temperature is less
than the desired temperature setting and the filter pump is running. The desired temperature
is in the “Settings Menu”. If applicable, the homeowner will be prompted to enter separate
“pool” and “spa” settings. Depending on the position of the pool/spa suction valve, the
proper temperature setting will be used.
Heater Cooldown
This feature ensures that the heater cools down before water circulation is stopped. When
enabled, the ECOMMAND 4 will continue to run the filter pump for 5 minutes after the heater
turns off. During this period the filter pump LED will flash and also a “Heater Cooldown,
X:XX remaining” message will scroll on the display.
When the filter pump is running and the heater is on: Pressing the “Filter” button once will
cause the heater to turn off, but the filter pump will continue to run for heater cooldown (filter
LED flashing and message on display). Pushing the filter button a second time will override
the heater cooldown operation and turn the filter pump off.
17
ir
Solar
Pool/Spa
Heater
Do not remove jumper
Terminal block located at
electrical junction box
Dipswitch located on heater
circuit board
PK
W
R
BK
R
ONºC
OFF
ºF
ir
Solar
Pool/Spa
Heater
MINIMAX
Ext.
Switch
Remove
Factory Jumper
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