User Guide

Rev. K 10-9-13 MASTERTEMP
®
Pool and Spa Heater Installation and User’s Guide
37
TEMPERATURE SETTING
The heater comes factory set at 78° F. for the pool mode and 100° F. for the spa mode. Using the up and down arrows,
you can set the thermostats to a minimum temperature of 65° F., or a maximum of 104° F. If you desire to heat only one
body of water, the thermostat is capable of an off mode. As an example, if you only wish to heat the spa and not the pool,
simply depress and hold the pool down arrow, and the thermostat will lower its setting to 65° F. then go to an off mode.
MAXIMUM TEMPERATURE SET POINT
1. Unbolt and remove the door panels (see Figure 32).
2. Access the control panel board on the underside of the top cover. Locate
the yellow button on the corner of the control board.
3. Push the Max. Temp. Set Point button on the back of the control
board (see Figure 33).
The following sequence should happen:
A
. The unit will come on and the POOL ON light will come on.
B. Press the ▲ TEMP or ▼ TEMP pad (on TOP of the panel) to set
maximum pool temperature.
C. Wait up to 30 seconds; the POOL ON light will go off and the
SPA ON light will come on. To override the time delay, push the
Max. Temp. Set Point button again.
D. Press the ▲ TEMP or ▼ TEMP button on the control panel
and set maximum spa temperature to 104°F (40°C) or less.
E. Wait up to 30 seconds; the SPA ON light will go off and
the unit will shut down. To override the time delay, push
the Max. Temp. Set Point button again.
4. Reinstall the access door panels.
Section 4. Operation Instructions
Door
Access
Panel
Top Panel
Door
Access Panel
Figure 32.
S1
SET
MAX
S1
SET
MA
X
Figure 33.