2-wire Controllers (Pool-Spa)

Please note

2-Wire controllers are not designed to control chiller operation.

For full functionality, the Heat and Cool, and Cool Only heat pumps must use an external SMART controller. Check with the external controller manufacturer for more information.

 

DANGER

Failure to heed the following will result in injury or death.

 

  • Deactivate power while routing wiring to control board.
  • RISK OF ELECTRICAL SHOCK FROM ENERGY STORED IN CAPACITORS - MODELS EQUIPPED WITH VARIABLE FREQUENCY COMPRESSOR DRIVES STORE ELECTRICITY EVEN AFTER THE POWER HAS BEEN DEACTIVATED AT THE POWER BREAKER. Wait for 2 minutes after the shut down of equipment before servicing.
  • Follow all National Electric Codes (NEC) and/or State and Local guidelines.

WARNING

Failure to heed the following may result in injury or death.

 

  • This section is only for qualified installers who are familiar with the swimming pool and spa safety standards.
  • The installer must be familiar with service industry techniques.

NOTICE

Failure to heed the following may result in damage to equipment.

 

  • Confirm equipment connected to heat pump before selecting this option . All existing configurations will be cleared.

Figure 6

  1. Deactivate power to heat pump.
  2. Remove heat pump electrical access panel.
  3. Route 22-gauge (minimum), 2-conductor, low-voltage wires from the controller to the low voltage side of the heat pump's electrical enclosure. Follow all National Electric Codes (NEC) unless State or Local guidelines supersede.
  4. Connect the controller wires to the control board port labeled "Ext Controller" with the terminals labeled "Y" and "Z" as follows. See Figure 6.
    • Connect one wire to “Y”.
    • Connect other wire to “Z”.
    • The polarity of the wire is not important.
  5. Reattach heat pump access panel.
  6. Apply power to heat pump.
  7. Configure the heat pump to accept a 2-wire external controllers signal as shown.

 

Configure 2-wire controller

 

 

IF UNIT IS ASLEEP,

SWIPE TO WAKE UP

 

A

PRESS MENU

BUTTON

 

B

USE ARROWS TO

"SYSTEM"

 

C

PRESS "ENTER"

 

 

D

USE ARROWS TO

"ADVANCED"

 

E

PRESS "ENTER"

 

 

1

USE ARROWS TO MENU

"EXTERNAL CONTROL"

 

2

ENTER TO SELECT

 

 

3

USE ARROWS TO MODE

 

 

4

ENTER TO EDIT

 

 

5

USE ARROWS TO

CHANGE TO "2WIRE"

 

6

ENTER TO SAVE

 

 

7

PRESS BUTTON

UNDER "YES"

 

Please note:

This action will wipe all previous settings in favor of the new configuration. This includes external controller settings, optional device settings, groups, equipment, schedules, and site specific settings. Additional site specific settings may need to be put in place.