Installation manual
7
ENVISION POOL HEATER INSTALLATION MANUAL
To Change Between Pool and Spa Setpoints Manually:
This is the default factory setting (jumper on pins 1-2) 
and allows the use to change between the pool and spa 
setpoints by using the mode button located on the front 
control panel. The use of an external water pressure switch 
IS NOT required for this mode of operation.
To Change Between Pool and Spa Setpoints Automatically:
This change can be done automatically as the water flow 
is directed to either the pool or spa. The use of an external 
water pressure switch in the spa piping IS necessary. A 
two-wire control circuit must be connected from the water 
pressure switch to the terminals 9 and 10 on the terminal 
strip located in the electrical control enclosure. The mode 
jumper must be on pins 2-3 for this mode of operation. See 
the Terminal Strip and Mode Configuration Pins illustration 
for pin settings.
Remote Thermostats and Controllers:
If a remote thermostat or another control system is to be 
used to operate the heater, a normally open dry contact 
can be made at terminals 11 and 12 on the terminal strip 
located in the electrical control enclosure. Remove the 
red jumper from terminals 11 and 12 on the terminal strip 
and install the remote control system. The mode jumper 
must be on pins 3-4 for this mode of operation. See the 
Terminal Strip and Mode Configuration Pins illustration for 
pin settings.
4 3 2 1
Mode
Configuration Pins
Removable
Jumper
Electronic
Controller
1
2
3
4
5
6
7
8
9
10
11
12
Terminal
Strip
Terminal Strip and Mode Configuration Pins
Electronic Control Panel
Control Settings
Temperature Setpoint
Temperature setpoint maximum for POOL mode is 95°F • 
(35°C).
Temperature setpoint maximum for SPA mode is 140°F • 
(40°C).
To change the temperature setpoint, press the POOL/
SPA/STANDBY button until you reach either POOL or SPA 
mode, this will prompt the control to display the current 
temperature setpoint. Hold either UP or DOWN button to 
scroll to your desired temperature setpoint. Once your new 
temperature setpoint has been reached, release the UP 
or DOWN button. Your new setpoint will be displayed for 
fifteen seconds then revert back to the actual pool or spa 
water temperature.
NOTE: When the mode jumper is in position 3-4, the 
setpoint must be changed on the remote control system.
Selecting Pool or Spa Mode
Press the POOL/SPA/STANDBY button until you reach the 
desired mode. The LED indicator light will verify the mode 
that has been selected. NOTE: When the mode jumper is in 
position 2-3 or 3-4 the mode is determined by the external 
water pressure (flow) switch or remote controller.
Modes of Operation










