Hatco Imperial Série Manuel D'installation page 22

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INSTALLATION
Outlet
1. Flush the water supply line to remove any pipe compound
and foreign matter.
2. Connect the booster heater water outlet to the commercial
dish machine sanitizing rinse pipe connection using a 3/4"
union and copper piping.
NOTICE
DO NOT turn or adjust water outlet connection on Large
Compact Series units (C-24 to C-57).
NOTE: Red mark on water outlet pipe for C-24 to C-57 series
units must remain in the top most position.
NOTE: Be certain the connection is made to the final rinse and
not to the wash tank.
3. Install a temperature/pressure gauge in the outlet line. The
temperature sensing element must be in the water stream
and the gauge must be mounted upright.
• Water temperature at the outlet should be 185°–190°F
(85°–88°C).
NOTE: Some dish machines require two booster heaters to be
plumbed in series (not parallel) to meet the demand. To
ensure proper operation, a 30°F (17°C) temperature
differential must be maintained between the inlet and
outlet of each booster heater.
NOTE: Hatco recommends installing an optional shock
absorber (P/N 03.04.057.00) in the outlet line as close
as possible to the commercial dish machine solenoid
rinse valve. The shock absorber softens the water
hammer caused by automatic dish machine valves.
Plumbing Installation Inspection
1. Close the drain valve and fill the booster heater with water.
2. Check all pipe connections for leaks.
3. make sure the temperature/pressure relief valve discharge
is not blocked.
4. Vent air from the tank before operating by opening the
temperature/pressure relief valve.
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 nozzle. The heating elements will
burn out in seconds if operated when they are not
immersed in water.
CAUTION
3/4" nominal
copper pipe
Recommended Temperature/Pressure Gauge Installation
Center bottom
of sensor
in copper pipe
3/4" nominal
copper pipe
3/4" x 1/2" x 3/4"
copper tee
alternate Temperature/Pressure Gauge Installation
Hatco has always endorsed the use of safety equipment
when using a booster water heater or storage-type water
heater. Hatco booster heaters are shipped with a
temperature/pressure relief valve at no extra charge. This
valve must be installed into the marked opening provided
in the tank. valves supplied by Hatco are designed for high
temperature commercial operation. Do not substitute Hatco
supplied valves with valves designed for domestic
operation.
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.
22
English
Temperature/
pressure gauge
with 1/2"
pipe thread
1/2" copper
female fitting
adapter
Temperature
sensing element
Temperature/
pressure gauge
with 1/2"
pipe thread
1/2" copper
female fitting
adapter
Temperature
sensing element
WARNING
Form No. EBOOSTERm-0816

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