Pentair 300, 250 General, Basic Thermostat Operation, Normal Operation no Remote

This icon is not a fault icon but instead indicates a remote switching device is connected to the Pentair Temperature Controller 7800, and has overriding selection control of Pentair Temperature Controller 7800.

Thermostat (Programming & Layout) 23

MINIMAX NT LOW NOx PENTAIR TEMPERATURE CONTROLLER 7800

(See Figure 21, for keypad and Pentair Temperature Controller layout details.)

GENERAL

The MiniMax NT Low NOx Pentair Temperature Controller 7800 is the heart of the control system. It controls all functions of the heater after first verifying that all safety controls are functioning normally. If a malfunction is detected, the Pentair Temperature Controller 7800 will flag the error with both the RED “Service” LED lighting and a corresponding LCD icon appearing on the Pentair Temperature Controller 7800, pin pointing the affected safety control(s). NOTE: The exception is the AUX (REMOTE) LCD icon which appears when a REMOTE Control (or Remote Switch) is connected to the Pentair Temperature Controller 7800, which overrides the “POOL” and “SPA” keypads on the control, giving “ON” selection control to the REMOTE.

BASIC THERMOSTAT OPERATION

The Pentair Temperature Controller 7800 comes pre-programmed for use with the spa temperature set at 104° F. and the pool temperature set for 78° F.— and with default

display mode set to display degrees F. (this may be adjusted to display in degrees C. with jumper on back of board), see Figure 21.

You need not do anything further to enjoy your heater other than set it in the pool or spa mode by depressing the key located under the corresponding “POOL” or “SPA” LED light. The LED above the selection will light and the corresponding “POOL” or “SPA” LCD icon on the display will appear.

NORMAL OPERATION (NO REMOTE)

Each temperature setting in either POOL or SPA mode is settable independently.

If the Factory’s presetting of 78° F. for “Pool” and 104° F. for “Spa” is not desirable, you may adjust these settings. See page 24 for changing the Factory Temperature Settings. To set the temperature while in SPA mode press the TEMP UP key (with UP arrow) to increase or TEMP DOWN (with DOWN arrow) to decrease the set temperature to that desired. NOTE: The left hand display indicates the current real-timetemperature. To set the temperature for POOL mode, first switch to POOL mode by depressing the “POOL” key and repeat the temperature setting procedure in this example. The Pentair Temperature Controller 7800 remembers the last set temperature for both the POOL and SPA mode and you may cycle between the two settings with the POOL and SPA selector keys.

In NORMAL operation, pressing the MODE key allows you the cycle between the right-hand display showing the SET TEMP for the currently active POOL or SPA or the TIME.

(Pentair Temperature Controller 7800 Layout)

FLASH IN PROGRAM MODE DAY ICON

ALTERNATE DISPLAY C or F.					DISPLAY IN TIME MODE ONLY
F = FAHRENHEIT						ALTERNATE DISPLAY	F = FAHRENHEIT
C = CELSIUS
							C = CELSIUS
							P = P.M.
							BLANK = A.M.
POWER						SYSTEM
						NORMAL
SERVICE						HEAT
	CURRENT TEMP			SET TEMP/TIME
POOL OR SPA
(DISPLAY ALTERNATELY
ON LCD TO SHOW ACTIVE SELECTION)
IGN	H-LMT	PRESS		FAN	AUX	TFUSE
FAULT CONDITION LCD ICONS
SET		POOL	OFF	SPA		TEMP
PROGRAM					STEP

MODE

TEMP

Figure 21.

Rev. C 11-1-01

KEYPAD SWITCHES

P/N 471593