Plumbing Requirements & Initial Set-Up - Bunn Axiom BrewWISE Series Installation & Operating Manual

These brewers must be connected to a cold water system with operating pressure between 20
and 90 psi (138 and 620 kPa) from a
the line before the brewer. Install a regulator in the line when pressure is greater than 90 psi (620
kPa) to reduce it to 50 psi (345 kPa). The water inlet fitting is
NOTE - Bunn-O-Matic recommends
for more than 25 feet from the
facilitate moving the brewer to clean the counter top. Bunn-O-Matic does not recommend the use of
a saddle valve to install the brewer. The size and shape of the hole made in the supply line by this
type of device may restrict water flow.
As directed in the International Plumbing Code of the International Code Council and the Food Code
Manual of the Food and Drug Administration (FDA), this equipment must be installed with adequate
backflow prevention to comply with federal, state and local codes. For models installed outside the
U.S.A., you must comply with the applicable Plumbing /Sanitation Code for your area.
1. Flush the water line and securely attach it to the inlet fitting at the rear of the brewer.
2. Turn on the water supply.
1. Insert an empty funnel into the funnel rails.
2. Place an empty server under the funnel.
3. Connect the brewer to the power source.
4. Turn on the main ON/OFF switch located on the
left side or back of brewer (If equipped).
5. Water will flow into the tank and stop when the tank
is filled to its capacity. Display will show "PLEASE
WAIT...TANK FILLING" until tank is filled with
water.
6. Wait approximately twenty minutes for the water
in the tank to heat to the proper temperature.
Display will show "READY TO BREW...WATER
TEMP: 200°" when tank is at operating tempera-
ture. Some water will drip from the funnel during
this time; this is due to expansion and should not
occur thereafter.
7. Place a small container beneath the faucet and
open the faucet handle. Release it when you hear
the tank refilling.
8. Water volumes and flow settings have been preset
at the factory. Refer to adjustments for the Set
Brew Volumes section of this manual should the
volume need to be increased or decreased.
9. The brewer is now ready for use in accordance
with the instructions for Coffee Brewing.
10. Repeat steps 5-9 for remaining side on Twins.
PLUMBING REQUIREMENTS
⁄ " or larger supply line. A shut-off valve should be installed in
1
2
⁄ " copper tubing for installations of less than 25 feet and
1
4
⁄ " water supply line. A tight coil of copper tubing in the water line will
1
2
INITIAL SET-UP
Page 6
⁄ " flare.
1
4
If setting up new brewer in high mineral
locations, refer to programming (Enable
Brew Logic). Pertains to units with
software version 1.06 & up.
Brew water temperature is factory set at 200° F (93.3° C)
Areas of high altitude will require lowering this tempera-
ture to prevent boiling. This chart should be used as a
guide when readjusting the brew water temperature.
Boiling point
Altitude
of water
° F ° C
(Feet)
-1000 213.8 101.0
-500 212.9 100.5
0 212.0 100.0
500 211.1
1000 210.2
1500 209.3
2000 208.4
2500 207.4
3000 206.5
3500 205.6
4000 204.7
4500 203.8
5000 202.9
5500 201.9
6000 201.0
6500 200.1
7000 199.2
7500 198.3
8000 197.4
8500 196.5
9000 195.5
9500 194.6
10000 193.7
⁄
3
8
Recommended
water temperature
° F ° C
200 93.3
200 93.3
200 93.3
99.5 200 93.3
99.0 200 93.3
98.5 200 93.3
98.0 200 93.3
97.4 200 93.3
96.9 199 92.8
96.4 198 92.2
95.9 197 91.7
95.4 196 91.1
94.9 195 90.6
94.4 195 90.6
93.9 194 90.0
93.4 193 89.4
92.9 192 88.9
92.4 191 88.3
91.9 190 87.8
91.4 189 87.2
90.8 188 86.7
90.3 187 86.1
89.8 186 85.6
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