Page 12 of 22 HEATPRO HEAT PUMP HP13023772 Rev: D
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pomona, CA Clemmons, NC Nashville, TN
Tel: 908.351.5400 www.haywardpool.com
Control Operation
Dual Thermostat (Models HP20654T, HP20654BT, HP20854T, HP20854BT & HP21104T)
On/Off:
This control does not have a true on/off feature. The unit uses standby mode
instead. Scrolling dots in the display indicate standby. Standby mode serves two
functions. (1) It serves as an “off” mode, which keeps the heat pump from
transferring heat into your pool water. (2) Standby allows a pool owner with
remote controlling systems, such as Goldline, to maintain pool and spa
temperatures via the remote.
To enter Standby mode: If pool mode is active (indicated by the green led over the pool button), press
the pool button once. Rolling dots should appear on the display. If spa mode is
active (indicated by the green led over the spa button), press the spa button
once. Rolling dots should appear on the display.
To exit Standby mode:
Press either the pool or spa mode button.
Mode Selection:
Select the desired mode of operation (spa or pool) by using the POOL / SPA
buttons. A green LED above the buttons designates the active mode. When the
pool mode is active, any displays or adjustments apply only to the pool mode.
Adjustments for spa mode must be made while the spa button is activated. A
user can switch between modes without turning the control to standby first.
Run Indicator Light:
Shows the unit is operating normally and the thermostat is making a demand for
heat.
Temperature Set point:
Pool and spa mode range is 50-104°F (21-40°C).
Adjust the set point:
Continuing to hold the up or down arrow button will adjust the set point value
until the desired set point is reached. When the desired value has been reached,
release the button. The new set point will flash to indicate a new value has
been recognized and the display will revert back to water temperature as
indicated by a steady display.
To display the set point:
Press and release the up or down arrow button once to display the current set
point for 3 seconds. For help with this type of control, refer to
Troubleshooting Guide with Digital Control.
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