Lochinvar NSF SSB-i & s--01 - Manual (Page 3)

OUTLET
Using a 3/4 in. union and piping connect the booster heater water outlet
to the dishwasher sanitizing rinse pipe connection.
Install a temperature/pressure gauge in outlet line. Water temperature
at outlet should be 180°F (82°C).
The temperature sensing element
must be in water stream.
Manufacturer recommends a shock absorber be installed in the outlet
line as close as possible to the dishwasher The shock absorber softens
the water hammer caused by automatic dishwasher valves.
INSTALLATION CHECK
1. Close drain pipe valve and fill booster heater with water.
2. Check all pipe connections for installation leaks.
3. Check relief valve discharge opening to be certain it is not blocked.
4. Vent air from tank before operating.
WATER REACHES 180ºF (82ºC), BUT DOES NOT MAINTAIN
180ºF THROUGH THE ENTIRE DISHWASHING OPERATION.
CAUSE A
Low incoming temperature, particularly during peak operational
periods, is the most common cause of this condition. If incoming
temperature is correct at the start of the dishwashing operation, check
again at the end. It is possible for the supply of 140ºF (60ºC) water to
be exhausted during the washing cycle.
SOLUTION - If incoming temperature is 140ºF (60ºC) at
the start of the washing cycle, but falls below at the end,
the primary water heater is not delivering sufficient 140ºF
(60ºC) water and the condition is correctable with
installation of a commercial primary water heater model of
the correct size. Contact your representative to assure proper
sizing of the primary heater.
CAUSE B
If incoming water temperature is correct and it holds through the
dishwashing operation, another possible reason for this condition is
that the water pressure may be too high. Water pressure to the
dishwasher must be approximately 20 psi for proper operation of the
booster and dishwasher rinse cycle.
SOLUTION - If pressure exceeds 20 psi with the
dishwasher rinse valve open, install a pressure reducing
valve with built in bypass check.
CAUSE C
The booster may be undersized.
SOLUTION - Check the dishwasher model with the sizing
guide to be sure the correct booster has been installed.
CAUSE D
The booster may have been ordered with improper voltage.
SOLUTION - Consult specifications plate on the booster.
Voltage and amperage are clearly marked. Check this infor-
mation against the service to which it is connected. If heater
was incorrectly specified consult factory for instructions.
CAUSE E
A low voltage condition may exist. Low voltage is a common cause on
large model heaters.
SOLUTION - Verify wire size and circuit for the application.
THE BOOSTER HEATER DOES NOT HEAT AT ALL OR ONLY
DELIVERS 130-150ºF (54ºC - 66ºC) WATER.
CAUSE A
Sometimes upon completion of an installation, the booster operation is
checked by energizing the heater before the tank is completely filled
with water. When elements of the immersion type are not completely
covered by water at the time the heater is turned ON, the high
temperature in the tank may damage the element(s) unless the unit has
been equipped with a low water cut-off.
SOLUTION - Damaged elements must be replaced.
CAUSE B
Fuses may be blown or circuit breaker tripped.
SOLUTION - Inspect the fuses or circuit breaker and
refer to data sheet for the booster model installed. If
undersized fuses or circuit breakers were installed, replace
with size recommended in the data sheet. See Section
“Booster repeatedly blows fuses or trips circuit breakers.”
Thermostats should also be inspected. Elements
damaged by overheating in “dry” environment can
easily damage thermostats.
NOTE:
BOOSTER HEATER SERVICE
PROCEDURES
Leave tank filled with water during electrical
hookup to prevent possible element burnout.
CAUTION !!
INSTALLATION CHECK
Be certain the connection is made to the final rinse
and not to the wash tank.
NOTE:
Do not run a cold water line to the heater.
NOTE:
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