Waterpik Technologies pool/spa heater 3B. Temperature Controls, 3B-1.Information Displayed, Laars

LX and LT Pool Heaters Page 19

CAUTION

Keep all objects off the top of the heater, and do not obstruct louvre openings in heater sides. Blocking ventilation air flow may damage the heater and void the warranty.

LAARS
LAARS
			POOL	POOL/OFF/SPA
* SERVICE	Heating		OFF
			SPA
Low Pressure	188 °C°F	188 °C°F
Hi Lim Sw
Ext Sw 1				BACKLIGHT
Air Flo Sw
AGS
Ext Sw 2
Temp			RS Online
Sensor				RS SERVICE
	Thermostat	Water		ON LINE FOR
	Setting	Temp		OPERATION
Pool Spa			F° C°	WITH
				AquaLinkTM RS
				CONTROLLER
SELECT			F°/C°
THERMOSTAT SETTINGS
	*SERVICE DIAGNOSTICS-SEE INSIDE FRONT DOOR
a) The LX Control Panel Display
b) The LT Control Panel Display

Figure 21. Temperature Control Panel

3B. Temperature Controls

The LX and LT heaters have temperature controls that can be set to heat the pool and spa with independent temperature settings. The controls display information to indicate that the heater needs service, and diagnostic information for the service person (see Figure 21). The LX utilizes a liquid crystal display (LCD) screen to display the information while the LT uses indicator lights. The LX Temperature Control also displays pool/spa water temperature and allows for precise temperature settings of the heater.

The controls allow the heater to directly interface with all Waterpik Technologies/Jandy remote control units. The LX offers full remote control capabilities while the LT controls offer limited remote control.

3B-1. Information Displayed

The Model LX displays information on a Liquid Crystal Display (LCD) screen. The temperature control displays the water temperature of the pool or spa as well as the desired temperature (thermostat setting) in either Fahrenheit or Celsius. When there is water flowing through the heater (the filter pump is on), the water temperature is displayed in the right-most of two bar graphs in the center of the screen. This bar graph is labeled as ‘Water Temperature’. The selected thermostatic setting (either Pool or Spa) is displayed as a bar graph directly to the left of the water temperature bar graph. This bar graph is labeled as ‘Thermostat Setting’. Note that when neither thermostat is selected (the heater is in off mode) only the water temperature is displayed.

If there is no water flowing through the heater (the filter pump is off), then only the thermostat setting for the mode selected will be displayed.

The Model LT heater does not display water temperatures or thermostatic settings.

When the heater is unable to operate due to a problem, the temperature control will identify which limit is not satisfied. The Model LX displays this information on the left side of the LCD under the LAARS LX logo. When the gas heater is firing, the LCD displays ‘Heating’ under the LAARS LX logo toward the center of the upper portion of the screen.

The Model LT displays this information by lighting a set of indicator lights located on the front of the control panel.

On the upper right-hand portion of the LCD screen on the Model LX is a selector arrow. Directly to the left of the selector arrow are three positions. They are ‘POOL’, ‘OFF’, and ‘SPA’. This part of the display indicates the mode of operation in which the heater is set.

The mode of operation of the Model LT is shown by two indicator lights labeled "SPA" and "POOL"

Underneath the mode selector on the Model LX display screen is a Backlight indicator. To turn the backlight on, press the middle button to the right of the screen, labeled "Backlight".