3
Programming the Controller
30
EN-RaychemHWATECOcontroller-IM-H57340 03/13
The minimum temperature is 105˚F (40˚C) or the
economy temperature, whichever is higher. The
maximum temperature depends on cable type, volt-
age and ambient temperature. The programmed
maintain temperature will display if you press the
ESC button once the system is in operation.
TABLE 2: MAXIMUM MAINTAIN TEMPERATURE (208-VOLT)
Ambient temperature
Heating cable
60˚F (15˚C)
70˚F (20˚C)
80˚F (25˚C)
HWAT-Y2
120˚F (49˚C)
125˚F (52˚C)
125˚F (52˚C)
HWAT-R2
140˚F (60˚C)
140˚F (60˚C)
140˚F (60˚C)
TABLE 3: MAXIMUM MAINTAIN TEMPERATURE (240-VOLT)
Ambient temperature
Heating cable
60˚F (15˚C)
70˚F (20˚C)
80˚F (25˚C)
HWAT-Y2
120˚F (49˚C)
125˚F (52˚C)
125˚F (52˚C)
HWAT-R2
140˚F (60˚C)
140˚F (60˚C)
140˚F (60˚C)
Economy temperature
The economy temperature setpoint is the water tem-
perature for periods during which hot water is not
usually used (at night) or when a lot of hot water is
used (peak period). Use the up/down arrows to select