Pentair Hot Tub Operating Controls, Dual Temperature Control System, Thermostat Knob Stopper

Figure 6.

6

Figure 5.

Operation (contd.)

OPERATING (CONTROLS)

Dual Temperature Control System

For convenience and economy all MiniMax® CH heaters are equipped with two thermostats on the front of the heater control panel; see Figure 5.

THERMOSTAT KNOB STOPPER

Each thermostat is equipped with a mechanical stop that can be locked or unlocked with use of a screwdriver to prevent temperatures in excess of that desired by the user; see Figure 6.

The maximum setting can be adjusted by

loosening the screw "A" and turning the stopper dial to desired maximum setting. Lock the setting

by tightening the screw. The Mechanical stop is

under the knob. Ensure that the knob is stopping at the correct position when the knob is rotated clockwise from a lower temperature position. (See Thermostat Adjustment.)

NOTE

To eliminate error due to piping heat losses, measure pool temperature with an accurate thermometer directly at the pool or spa.

THERMOSTAT ADJUSTMENT

The knob with locking feature eliminates the need for constant thermostat adjustments. Set the knob pointer to the desired pool or spa temperature.

If further adjustment is needed, rotate the knob until the
desired temperature is obtained. This knob position
corresponding to your desired maximum pool or spa
temperature may now be preset (locked) by the knob
stopper which prevents the knob from being turned
beyond the maximum temperature you set.	Knob Stopper
POWER (THERMOSTAT SELECT) SWITCH	Screw A

The Pool/Off/Spa switch allows the heater to be turned off when heating is not desired.

1.“Pool” position - Maintains selected pool temperature.

2.“Off” position - Heater will not come on regardless of drop in pool or spa temperature.

3.“Spa” position - This allows separate control of spa water temperature or an alternate lower pool temperature.

P/N 472128 Rev. E 11-5-07