2. An experienced electrician should be responsible for connecting urn to electric power.
3. Check rating marking on urn to be sure supply lines match voltage and phase requirements.
4. Neutral wire normally required on all single phase and on 208 Volt three phase power supplies to operate 120
Volt AC control Circuit. If single phase, 2 wire service (no neutral) or 3 phase 3 wire service (no neutral), a
transformer is installed to supply 120 volt AC power to control circuit.
5. A fused disconnect switch should be installed near urn.
6. Urn body must be grounded. A grounding conductor terminal is provided for this purpose. Other means of
positively grounding urn may be used.
7. Use only copper wire to connect this urn.
OPERATION START-UP
1. Turn power on to urn. Have spray arm in ″Park″position, with nozzle in vent tube opening at center rear. Turn
on water supply to urn. With automatic refill, water compartment will fill automatically. Time required to fill
is 10 to 15 minutes. In case of failure to fill, refer to Automatic Refill Service Instruction page.
2. Turn thermostat knob to ″Brew″position. Pilot light at top of thermostat bezel should light up. Water in urn
should heal up, and rise to high end of ″Brew″zone on thermometer within approximately 55 minutes,
depending on temperature of water in urn. Pilot light at top of thermostat bezel should go out when water in
urn is at brew temperature. This pilot light will also go out in case of dangerous low water conditions, or no
power at urn due to blown fuses, switch off, or while urn is refilling.
OPERATION START-UP CHECKS
1. Turn thermostat dial to ″Brew″position. Pilot light at top of thermostat bezel should light up and when ther-
mometer pointer is in high ″Brew″zone, this pilot light should go out. Water in urn tank is now at brew tem-
perature. NOW and ONLY at initial start-up, we advise checking time of flow of hot water to spray nozzle.
2. Checking Spray-Over Volume and Rate Remove cover from brew basket over one liner. Position spray
nozzle over this brew basket. Liner should be empty and faucet shut off. Push in timer start button and brew
pilot should light up. Hot water should start to spray into brew basket. Allow to spray until brew pilot light
goes out and sprayover stops.
Measure amount sprayed over by drawing off into a calibrated one gallon measure. If amount is more or less
than desired, remove cover to reveal timer adjustment and reset timer using a screwdriver. Longer time-more
sprayover, shorter time-less sprayover. Each 1/4 minute increase or decrease adds or subtracts about 1/3 gallon
to sprayover total. Replace cover after setting.
Note that setting of sprayover bypass valve effects amount of sprayover. Set as desired.
Before actual use of urn, it should be thoroughly cleaned and washed. It is also recommended that a batch
of coffee be brewed in each liner based on a final brewing cycle timer setting, actual muslin bag or filter to be
employed. We recommend that these first batches be thrown out and not used. Strength of brew may be checked
by hydrometer or evaporation tests but flavor test might be poor on first batch.
COFFEE BREWING AND URN BREW CYCLE
Measurement of water quantity sprayed over is by a precision electric timer, controlling an electric solenoid
water valve. When timer is started, water solenoid valve opens, and water line pressure forces fresh water to flow
S6161-JB-FSE-010
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