Bunn LCR-3 HV Installation & Operating Manual

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Brand: Bunn

Category: Beverage Dispenser

Type: Installation & operating manual for Bunn LCR-3 HV

Pages: 27 (1.92 Mb)

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5
ELECTRICAL REQUIREMENTS
CAUTION: The dispenser must remain disconnected from power source until specified in Electrical Hook-Up.
The LCR-3 HV is shipped configured for 3 Phase operation. The internal terminal block must be rewired for
208/240V – 1Phase applications, (see Optional Field Wiring Diagram).
FIELD WIRING TERMINAL BLOCK DIAGRAM
For all 208 - 240 Volt Connections: Use No. 6 AWG Wires suitable for 90°C (194 °F)
1. Unit is shipped wired for 3 Phase / 5 wire operation.
2. For 208 - 240V / 1 Phase / 3 Wire: Move the Blue Heater wire to the Top Black Terminal as shown.
3. Unit requires120 Vac from L1 to N.
L1 L2 L3 N
BLK
BLU
RED
WHI
TERMINAL
BLOCK
TO MACHINE
FROM POWER SOURCE
Fig 1 Fig 2
TO MACHINE
FROM POWER SOURCE
L1 L2 L3 N
BLK
RED
BLU
WHI
PLUMBING REQUIREMENTS
The dispenser may be connected to a cold or hot water system (140°F Max.) with operating pressure between
20 and 90 psi (138 and 620 kPa) from a 1/2” or larger supply line. Install a regulator in the line when pressure
is greater than 90 psi (620 kPa) to reduce it to 50 psi (345 kPa). The dispenser is set up to deliver to 6 Oz./sec.
(177.4 ml/sec) and requires a water supply that can deliver a minimum of 3 gpm (11.4 lpm) at the inlet valve. A
shut-off valve should be installed in the line before the dispenser.
NOTE: The water inlet fitting is 3/8” flare. Bunn-O-Matic recommends 3/8” flexible tubing from the 1/2” water
supply line. At least 18 inches of FDA approved beverage tubing, such as reinforced braided polyethylene or
silicone, before the dispenser will facilitate movement to clean the counter top. Bunn-O-Matic does not recommend
the use of a saddle valve to supply water to the dispenser. The size and shape of the hole made in the supply line
made by this type of device may restrict water flow.
NOTE: The water level sensors in this machine do not work with de-ionized water and may cause the unit to overflow.
RO (Reverse Osmosis) water supply systems may need to be treated to restore free ions to the water.
41129 060111
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.
ALTERNATE LOCATION FOR THE WATER AND ELECTRICAL CONNECTIONS
The LCR-3 HV is supplied with the electrical and water connections at the back of the dispenser. However, in
some applications it may be more convenient for one or both of these connections to be located in the bottom
of the dispenser. To change the location, remove appropriate cover plate(s) from the bottom of the dispenser.
Remove the valve and/or electrical clamp and holes plugs from the back of the dispenser and install them in
the bottom panel. Re-install the cover plate on the back of the dispenser to cover the open holes. Take care to
replace and tighten all water clamps, mounting screws and the plastic hole plugs.