2. Use copper or flexible water line to prevent strain.
Do not use low temperature plastic tubing. The
connection to the fill valve is 3/4" BSP.
3. Prior to installing the brewer, flush out the water
line by running approximately 4L of water into a
pail. This will ensure no sediment from a new
installation can get in the brewer.
4. Water line pressure must be from 30 to 80 psi (207-
552 kPa).
5. Hot (up to 140°F / 60°C) or cold water may be used.
Hot water offers faster recovery between brews.
6. Make sure brewer is unplugged. Connect the water
line to the brewer with the hose connector.
7. Install a shut-off valve near the brewer.
8. Installing a filtering system can improve the taste of
brewed coffee and extend the life of the brewer. If
your water has high calcium (lime), chlorine, or iron
content, this is especially important. The filter
should be the lime inhibiting type if cold water is
used. Contact your local water treatment
professional regarding the type of filter you should
use based on water quality and volume of water
used.
Electrical Hook-up and Start-up Procedure
NOTICE:
This equipment must be installed in
compliance with applicable Federal, State and/or Local
electrical codes having jurisdiction. Do not use
extension cords. Make sure that the outlet the brewer
plugs into is grounded.
NOTICE:
Lower tank temperature for higher
altitudes. Water boils at lower temperatures as
elevation increases. See Adjustments.
The brewer is designed to operate at the specified
voltage on the nameplate. If the voltage is too low, the
solenoid valves may or may not work or longer recovery
time will be experienced. The brewer may be
permanently damaged if the voltage is too high.
1. The electric ratings for your brewer are printed on
its nameplate.
2. The brewer should be connected to its own circuit
with a fused disconnect switch or a circuit breaker
near the brewer.
Important:
Means shall be provided to ensure all pole
disconnection from the supply. Such means shall be one
of the following: a supply cord fitted with plug, or a
switch that is directly connected to the supply terminals
and has a contact separation of at least 3mm in each
pole.
3. The brewer is supplied with a power cord for the
specified power supply receptacle.
4. Use only recommended replacement cord in the
event of damage to the supplied cord.
5. The cord must be plugged into a receptacle which
is rated for the plug supplied.
NOTICE:
Double brewers only are provided with
dual independent heating tanks. The L1 leg of single
phase double brewers is routed through a circuit
breaker to prevent the possibility of overloading the
branch circuit in the event of both heating elements
activate at the same time.
The universal power supply provides 24vdc to all control
components (solenoids, lights, valves, motors, etc.).
The chassis must be grounded. A ground connection is
provided next to the terminal block.
Start up
1. Flip power supply to machine “ON” at the branch
supply disconnect. Then flip power switch located
on the back of the machine to the "ON" position
and allow the water tank to fill. The display on the
front should illuminate and machine may make a
subtle hissing sound while filling.
Note:
A watchdog circuit monitors the fill valve “ON”
time. If the “ON” time exceeds 3.5 minutes
continuously, the brewer will display message “ER1”
and cease operation. Normal initial fill time on some
models exceeds 3.5 minutes. Turn off power to brewer
and turn back on; this will reset the controller and allow
brewer to complete filling.
2. Once the brewer is full, it will take 15 to 45 minutes
to heat, depending on input voltage, starting water
temperature, and number of brew heads.
3. Insert the brew basket(s) and place a shuttle under
8
Grindmaster
®
Coffee Brewers
Installation (continued)
WARNING: ELECTRIC SHOCK HAZARD!
Installation of this appliance should be performed by
authorized service personnel only. Improper
installation could result in electrocution.
WARNING: ELECTROCUTION HAZARD!
This appliance is IP20 rated, and shall not be cleaned
with pressurized water.
WARNING: ELECTROCUTION HAZARD!
Never use the ground conductor as a neutral. This
could cause electrocution.
WARNING: ELECTRIC SHOCK HAZARD
This machine is equipped with a power switch on the
back of the machine which disconnects the low
voltage power supply circuits only. Heating circuits are
always powered on when the branch circuit is on.
Disconnect power at branch circuit before
servicing.
