Hatco Imperial Series Installation And Operating Manual page 4

IMPORTANT SAFETY INFORMATION
Read the following important safety information before using this equipment to avoid serious
injury or death and to avoid damage to equipment or property.
WARNING
This product contains fiberglass, a product known to the
state of California to cause cancer, birth defects, or other
reproductive harm.
Install booster water heater as close as possible to a
commercial dish machine. Employ re-circulation if distance
between water heater and dish machine exceeds National
Sanitation Foundation (NSF) specifications of 1524 mm
(5 linear feet).
Follow standard welding safety and operational procedures
when attaching sliderails to bottom of dishtable.
Make sure the dishtable is strong enough to support the
weight of the heater AND water when installing with slide
mounting brackets.
Refer to the BOOSTER HEATER SIZING CHART in this
manual to ensure proper sizing and avoid personal injury
and/or damage to the booster heater.
It is essential to recognize that even though a water heater
may be properly installed initially and approved, there
always exists the possibility that unknowing individuals
might alter or change the installation in a manner that
would render it unsafe. Therefore, it is important that all
safety programs provide some mechanism to assure that
these installations are inspected periodically.
This unit has no "user-serviceable" parts. If service
is required on this unit, contact an Authorized Hatco
Service Agent or contact the Hatco Service Department at
414-671-6350.
BURN HAZARD:
• Water in unit is very hot. Wear protective gloves and
proper attire when operating to avoid injury.
• Valves supplied by Hatco are designed for high
temperature commercial operation. Do not substitute
Hatco valves with valves designed for domestic water
heaters.
Do not use anti-siphon valves on incoming water line.
Check valves on incoming water line is not recommended.
Damages caused by the use of check valves on unit will
not be covered by warranty.
Do not connect booster heater directly to a boiler or
furnace coil or any other uncontrolled temperature source.
The booster heater thermostat could be damaged causing
unit to overheat.
Incoming water temperature should be minimum of 29°C
(85°F). Damage to the heater can occur if water is cooler
than 29°C (85°F).
Do not connect an expansion tank of any type to booster
heater water lines.
CAUTION
Hatco requires that two temperature/pressure gauges
(Hatco P/N 03.01.003.00) be installed to ensure 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 138
kPa (20 psi) during flow, install pressure reducing valve
with built-in bypass (Hatco P/N 03.02.004.00) for proper
operation of dish machine rinse nozzles.
NOTE: The pressure reducing valve must be the type equipped
with a high pressure bypass, as supplied by Hatco.
DO NOT turn on power to the booster heater until tank has
been filled with water and all air has been vented through
the dish machine rinse nozzles. Heating elements will burn
out in seconds if operated when not immersed in water.
Always drain booster heater with power to the unit off or
element burnout could occur.
Use dielectric couplings when connecting dissimilar
metals, such as galvanized to copper. This will prevent
electrolysis or premature plumbing damage.
Do not turn or adjust outlet water connection on all Large
Compact Series units (C-24 to C-57).
Do not turn or adjust inlet or outlet water connection on
Compact Series Booster Heaters or internal water flow will
change and the unit will not produce a consistent outlet
temperature.
Do not back out or loosen any pipe fittings or leaks may
occur.
Do not lay unit on the side with the control panel or inlet
and outlet pipes. Damage to the unit could occur.
Incoming water in excess of 0.75 grains of hardness per
liter (GPL) (3 grains of hardness per gallon [GPG]) must
be treated and softened before being supplied to booster
heater(s). Water containing over 0.75 GPL (3 GPG) 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.
Do not use deionized water. Deionized water will shorten
the life of water reservoir and heating element.
Units are voltage-specific. Refer to specification label
for electrical requirements before beginning installation.
Connecting unit to incorrect power supply will void
product warranty and may damage unit.
4
English
CAUTION
NOTICE
Form No. EBOOSTER_AAM-1017