Hatco IMPERIAL "S" User Manual
Form No. EBOOSTERM-0406
3
IMPORTANT SAFETY INFORMATION
IMPORTANT! Read the following important safety instructions to avoid personal injury or
death, and to avoid damage to the equipment or property.
death, and to avoid damage to the equipment or property.
CAUTIONS
To prevent electrolysis or plumbing damage
dielectric couplings should be used in
connecting dissimilar metals, such as
galvanized to copper.
dielectric couplings should be used in
connecting dissimilar metals, such as
galvanized to copper.
To avoid possible leaks, do not back out or
loosen any pipe fitting.
loosen any pipe fitting.
Do not lay unit on the side with the control
panel or damage to unit could occur.
panel or damage to unit could occur.
To avoid damage to the unit always drain the
booster heater with power to the unit off, or
element burnout could occur.
booster heater with power to the unit off, or
element burnout could occur.
Incoming water in excess of 3 grains of
hardness per gallon ([GPG] .75 grains of
hardness per liter [GPL]) must be treated and
softened before being supplied to booster
heater(s). Water containing over 3 GPG or .75
GPL will decrease efficiency, increase
energy use, and reduce the operating life of
the unit through increased lime build-up.
Product failure caused by liming or sediment
buildup is not covered under warranty.
hardness per gallon ([GPG] .75 grains of
hardness per liter [GPL]) must be treated and
softened before being supplied to booster
heater(s). Water containing over 3 GPG or .75
GPL will decrease efficiency, increase
energy use, and reduce the operating life of
the unit through increased lime build-up.
Product failure caused by liming or sediment
buildup is not covered under warranty.
To assure proper performance Hatco Electric
Booster Water Heaters are only to be
connected to the same power supply as
indicated on the specification decal. Units
connected to an incorrect power supply
voids the product warranty and may damage
the equipment.
Booster Water Heaters are only to be
connected to the same power supply as
indicated on the specification decal. Units
connected to an incorrect power supply
voids the product warranty and may damage
the equipment.
To assure proper operation on all Compact
Series Booster Heaters, do not turn or adjust
inlet water connection on unit. Doing so will
change the internal water flow.
Series Booster Heaters, do not turn or adjust
inlet water connection on unit. Doing so will
change the internal water flow.
CAUTIONS
To assure proper operation do not use anti-
siphon or check valve on the incoming water
line.
siphon or check valve on the incoming water
line.
Do not connect the heater directly to a boiler
or furnace coil or any other uncontrolled
temperature source, or the thermostat could
be damaged causing the unit to overheat.
or furnace coil or any other uncontrolled
temperature source, or the thermostat could
be damaged causing the unit to overheat.
Unit is not weatherproof. For safe and proper
operation the unit must be located indoors
where the ambient air temperature is
constant and is a minimum of 70°F (21°C).
operation the unit must be located indoors
where the ambient air temperature is
constant and is a minimum of 70°F (21°C).
CAUTIONS
Hatco requires that two temperature/pressure
gauges, Hatco part number 03.01.003.00, be
installed to assure proper operation. Install
one in the supply line before the pressure
reducing valve and one in the outlet line as
close to the booster heater as possible. This
provides a visual check of the water
temperature and pressure before and after
the water heater.
gauges, Hatco part number 03.01.003.00, be
installed to assure proper operation. Install
one in the supply line before the pressure
reducing valve and one in the outlet line as
close to the booster heater as possible. This
provides a visual check of the water
temperature and pressure before and after
the water heater.
If water supply pressure to the booster inlet
is over 20 psi (138 kPa) during flow, install
Hatco pressure reducing valve with built-in
bypass, Hatco part number 03.02.004.00, for
proper operation of dishwater rinse nozzles.
is over 20 psi (138 kPa) during flow, install
Hatco pressure reducing valve with built-in
bypass, Hatco part number 03.02.004.00, for
proper operation of dishwater rinse nozzles.
NOTE: The pressure reducing valve must be
the type equipped with a high pressure
bypass as supplied by Hatco.
the type equipped with a high pressure
bypass as supplied by Hatco.
Do not turn on power to the booster heater
until the tank has been filled with water and
all air has been vented through the
dishwasher rinse nozzle. The heating
elements will burn out in seconds if operated
when they are not immersed in water.
until the tank has been filled with water and
all air has been vented through the
dishwasher rinse nozzle. The heating
elements will burn out in seconds if operated
when they are not immersed in water.
To assure proper operation on all Large
Compact Series units, (C-24 to C-57), do not
turn or adjust outlet water connection.
Compact Series units, (C-24 to C-57), do not
turn or adjust outlet water connection.