Bunn GMB-PS Operating & Service Manual page 4

CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.
Model 15 has an attached cordset and requires 2-wire grounded service rated 120 volts ac, 15 amp, single
phase, 60 Hz.
WHITE
NEUTRAL
L1 BLACK
Model 20 requires 2-wire,
grounded service rated 120 volts
ac, 20 amp, single phase, 60 Hz.
Proceed as follows:
CAUTION – Improper electrical installation will damage electronic components.
1. An electrician must provide electrical service as specified.
2. Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.
3. Remove the rear panel.
4. Feed the cord through the strain relief and connect it to the terminal block.
5. Connect the brewer to the power source and verify the voltage at the terminal block before proceeding. Replace
the rear panel.
6. If plumbing is to be hooked up later be sure the brewer is disconnected from the power source. If plumbing
has been hooked up, the brewer is ready for Initial Set-Up .
This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi (138
and 620 kPa) from a ⁄ " or larger supply line. A shut-off valve should be installed in the line before the brewer. Install
1
2
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 ⁄ " flare.
1
4
NOTE - Bunn-O-Matic recommends
25 feet from the ⁄ " water supply line. A tight coil of copper tubing in the water line will facilitate moving the brewer
1
2
to clean the countertop. 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.
This equipment must be installed to comply with the Basic Plumbing Code of the
Building Officials and Code Administrators International, Inc. (BOCA)
and the Food Service Sanitation Manual of the Food and Drug Administration (FDA).
All manuals and user guides at all-guides.com
ELECTRICAL REQUIREMENTS
L2 RED
WHITE
120V.A.C. NEUTRAL
L1 BLACK
P2185
Model 35 requires 3-wire,
grounded service rated 120/208 or
120/240 volts ac, 20 amp, single
phase, 60 Hz. Proceed as follows:
Electrical Hook-Up
PLUMBING REQUIREMENTS
⁄ " copper tubing for installations of less than 25 feet and
1
4
120 V.A.C.
208 OR 240 V.A.C.
120 V.A.C.
P1841
Page 4
"A" & "B" models require 2-
wire, grounded service rated 200
volts ac or 240 volts ac, 20 amp,
single phase, 50 Hz. Proceed as
follows:
⁄ " for more than
3
8
P2193
27479 121500