Master Spas SEATTLE Owner's Manual & Limited Warranty page 63

SPA CONTROLS - ICON SPA TOUCH
THE SETTINGS SCREEN
HEAT MODE – READY VS. REST
In order for the spa to heat, a pump needs to circulate water through the heater. The pump that
performs this function is known as the "heater pump". The heater pump can be either a 2-speed
Pump (Pump 1) or a Circulation Pump.
READY MODE
If the heater pump is a 2-speed Pump 1, Ready Mode will circulate water every 1/2 hour, using
Pump 1 Low, in order to maintain a constant water temperature, heat as needed, and refresh the
temperature display. This is known as "polling".
REST MODE
If the spa is not going to be used for a prolonged period of time, this mode will only allow heating
during programmed filter cycles. Since polling does not occur, the temperature display may not
show a current temperature until the heater pump has been running for a minute or two. This is
seen on the screen as: . Using Rest Mode is not recommended in below
freezing temperatures.
NON-CIRCULATION MODE (2-speed Pump 1)
When the heater pump has come on automatically (for example for heating or polling) you can
switch between low speed and high speed but you cannot turn the heater pump off.
CIRCULATION MODE
If the spa is configured for 24hr circulation, the heater pump generally runs continuously. Since the
heater pump is always running, the spa will maintain set temperature and heat as needed in Ready
Mode, without polling. In Rest Mode, the spa will only heat to set temperature during programmed
filter times, even though the water is being filtered constantly when in 24hr circulation mode.
NOTE: See more information on circulation modes within "Pumps" in the Spa Controls - Spa
Behavior sections.
READY-IN-REST MODE
Ready in Rest Mode appears in the display if the spa is in Rest Mode and the Jets 1 Button is
pressed. When the heater pump has come on automatically (for example for heating) you can
switch between low speed and high speed but you cannot turn the heater pump off. After 1 hour,
the System will revert to Rest Mode. This mode can also be reset by selecting the Heat Mode.
M8 SMART TEMPERATURE MONITORING
As a default, the M8 Icon is set as ON/Active. M8 affects the spa
operation behavior for non-circulation pump systems which use therapy
Pump 1 (Jets 1) low speed for monitoring spa water temperature, heating
and filtering. If your spa has a dedicated circulation pump system such as
Quietflo or Mast3rPur, these behaviors do not apply.
ON/Active OFF/Inactive
While ON/Active and the spa system set to Ready Heat Mode, M8 can actively change Pump 1 low
speed water temperature polling intervals from every 30 minutes to become less frequent, up to 2
hours in between polling points, if the spa water temperature is remaining very stable.
If set to OFF/Inactive and the spa system set to Ready Heat Mode, the spa control system will only
poll to check current spa water temperature every 30 minutes.
DO NOT DIVE. DO NOT DIVE. 111 61