6. Set the electronic controller to the desired setpoint
temperature.
a. Press the
key. The WATER TEMPERATURE
display will show “TSP”.
b. Press the
key again. The WATER TEMPERATURE
display will show the current setpoint temperature.
c. Press the
key or
key to change the setpoint
temperature. The WATER TEMPERATURE display will
show the new setpoint temperature.
d. Press the
key. The WATER TEMPERATURE
display will show “End”. Wait 5 seconds and the unit will
show the current operating temperature.
Hydro-Heater Control Panel
NOTE: If setpoint temperature adjustment is interrupted or no
changes are made for 15 seconds, the controller will go
back to its original setting without accepting the change.
NOTE: If the WATER TEMPERATURE display shows “E2”, the
internal water sensing probe is out of temperature
range. If this occurs, contact the Hatco Parts and
Service Team or an Authorized Service Agent in your
area for assistance.
NOTE: If the WATER TEMPERATURE display shows “E3”, the
low water sensing probe is not sensing water. The
heating elements will not activate until the probe is
submersed in water. If this occurs, add water or check
the water supply connection.
!
Electronic
Controller
POWER
ON/OFF
(I/O) Switch
Cleanout
Drain
w/Cap
Drain
Handle
(closed)
Drain
General
Use the following procedures to operate a Hydro-Heater.
Read all safety messages in the IMPORTANT SAFETY
INFORMATION section before operating this equipment.
BURN HAzARD:
• Some exterior surfaces on unit will get hot. Avoid
unnecessary contact with unit.
• Water in holding vessel may reach temperatures in
excess of 190ºF (88ºC). Use appropriate protection
when operating unit.
• DO NOT set temperature control higher than 190ºF
(88ºC). Units are designed to heat water up to 190ºF
(88ºC). Water over 190°F (88°C) is very active and could
splash onto operator causing serious burns or injury.
Do not turn on power to unit until holding vessel has been
filled with water. Dry operation may cause element burnout.
ALWAYS drain holding vessel with power to unit off or
element burnout could occur.
1. For hardwired units, check that the fused disconnect
switch or circuit breaker is in the “on” position. For cord
and plug units, make sure the unit is plugged into a
properly grounded receptacle of the correct voltage, size,
and plug configuration. See the SPECIFICATIONS
section for details.
2. Make sure that the small pipe caps (if provided) are
tightened securely to the clean-out drains.
3. Close the drain by moving the drain handle toward the front
of the unit until it stops.
4. Fill the sink or holding vessel with hot water to the normal
operating level.
• For units with Auto-Fill, open the water supply valve and
verify the sink or holding vessel is being filled with water.
5. Move the POWER ON/OFF (I/O) switch to the ON (I)
position.
• The WATER TEMPERATURE display will glow to
indicate power is supplied.
NOTE:
Auto-Fill units only
—
When the tank water level
reaches the low water probe, the display will show the
current water temperature and a small red light will glow
in the upper left-hand corner of the display indicating
the heating elements are energized. Water will continue
to fill the tank until the water reaches the upper water
probe. The heating elements will remain on until the
tank water reaches the programmed setpoint
temperature .
WARNING
NOTICE
CAUTION
Form No. HHM-0517
10
OPERATION
