Hydropool Serenity Hot Tubs, Owner'S Manual

21 

HOLD MODE (STANDBY)  

The HOLD (standby) feature stops the system from operating 
automatically, allowing for convenient filter cartridge removal 
and replacement. 

The following pads must be pressed. 

The system will automatically exit HOLD (Standby) Mode after 1 
hour and resume normal operating functions. 

Press then the pad - the display will flash.  

If the system is heating when HOLD (Standby) Mode is acti-
vated, the display will flash and the pump will continue to oper-
ate for 15 seconds to allow the heater to cool off before 
stopping. 

LOCK (RESTRICTING PANEL OPERATION) 
 

Locking the panel prevents the spa from being used; it also 
prevents unwanted temperature adjustments. All automatic 
functions are still active/ Locking the Temperature allows jets 
and other features to be used, but the set temperature and 
other programmed settings cannot be adjusted. 

UNLOCK (ALLOWING PANEL OPERATION) 
 

This unlock sequence may be used from any screen that may 
be displayed on a restricted panel.  
 

INVERT 
 

Pressing this key will toggle the display so that it is 
readily visible from inside the spa when you are using it. 
 

PURGE (CLEAN-UP) CYCLES 
  

When a pump or blower is turned on by a button press, a clean 
up cycle begins 30 minutes after the pump or blower is turned 
off or times out. The pump and ozone generator will run for 20 
minutes or more, depending on the system. 
 

OPTIONAL OZONATOR 
 

The ozonator operates during 

FILTER CYCLES 

only when 

Pump 1 is on low speed. 
 

FREEZE PROTECTION 
 

If the temperature sensor detects a drop to 4°C (39°F) within 
the heater chamber, the system automatically activates the 
pump to provide freeze protection. The pump will operate until 
the temperature reaches approximately 5°C (41°F) before re-
turning to normal system mode. 
 

Press TEMP

Press LIGHT repeatedly until “HOLD” appears

Press TEMP to start 60 minute count down

Press TEMP 

Press LIGHT repeatedly until LOCK appears

Press TEMP 

Press LIGHT to toggle between TEMP and PANL

Press TEMP to toggle ON or OFF

Press LIGHT to exit

Press TEMP. LOCK will appear on the display

Press and hold TEMP while pressing LIGHT 
twice. UNLK will appear on screen and then will 
exit the menu.

TEMPERATURE RANGES  

 
The 

TEMP

 feature allows you to select a low and high tempera-

ture range depending on your climate and time of year. The 
settings are as follows: 
 
High Range can be set between 27°C (80°F) and 40°C (104°F) 
in 1° increments.  
Low Range can be set between 10°C (50°F) and 37°C (99°F) in 
1° increments.  
 
To change your selection press the following sequence. 

Press TEMP 

Press LIGHT repeatedly until TEMP appears

Press TEMP to select the range (HIGH “^” or low “v”)

Press LIGHT to select the Temperature Mode