Curtis WB5N Service Manual

Models Included
• WB5N
• WB5NL
• WB5N30
• WB5NB
• WB5NLB
CAUTION:
Equipment must be
installed to comply
with applicable federal, state,
and local plumbing/electrical
codes.
CAUTION: Follow
this setup procedure
before attempting
to use this unit. Failure to
follow these instructions can
result in injury and/or void of
warranty.
CAUTION: DO NOT
connect the unit to
hot water supply.
The inlet valve is not rated for
hot water.
ISO 9001:2008 REGISTERED
WILBUR CURTIS CO.
6913 Acco Street,
Montebello, CA 90640-5403
For the latest information go to
www.wilburcurtis.com
Tel: 800/421-6150
Fax: 323/837-2410
Service Manual – WB5N Hot Water Dispenser
Important Safeguards/Symbols
This equipment is designed for commercial use. Any servicing other than cleaning and routine
maintenance should be performed by an authorized Wilbur Curtis Company service technician.
• DO NOT immerse the unit in water or any other liquid
• To reduce the risk of fire or electric shock, DO NOT open service panels. There are no user
serviceable parts inside.
• Keep hands and other items away from hot areas of the unit during operation.
• Never clean with scouring powders or harsh chemicals.
Symbols:
WARNINGS – To help avoid personal injury
Important Notes/Cautions – from the factory
Sanitation Requirements
INSTALLATION
This Curtis unit is pre-set and ready to go from the factory.
System Requirements:
• Water Supply 20 – 90 PSI (MINIMUM FLOW RATE of 2 GPM)*
• Electrical: See electrical schematic.
SETUP STEPS
1. The unit should be level (left to right - front to back), on a secure surface.
2. Connect the water line to the water inlet fitting on the rear of the unit. Water volume going to the
machine should be consistent. Use tubing sized sufficiently to provide a minimum flow rate of
two gallons per minute.
NOTE: A water filtration system must be used to help maintain trouble-free operation. Air must be
purged from the cartridge prior to connection to equipment. In areas with extremely hard wa-
ter, we highly recommend the use of a Curtis approved water filter. For our full line of filters, please
log on to www.wilburcurtis.com.
NSF requires the following water connection:
1. A quick disconnect or additional coiled tubing (at least 2x the depth of the unit) is required so
that the unit can be moved for cleaning.
2. This unit must be installed with adequate backflow protection to comply with applicable federal,
state and local codes.
3. Water pipe connections and fixtures directly connected to a portable water supply shall be sized,
installed and maintained in accordance with federal, state, and local codes.
3. Connect the unit to electrical outlet with appropriate amperage rating (See serial tag on ma-
chine).
4. Once power has been supplied to the unit, flip the toggle switch to the 'ON' position (located on
the rear of the unit), the water tank will begin to fill. When the water level in the tank reaches the
probe, the heating element will turn on.
5. During the initial setup, the heating tank will reach operating temperature in 60 to 70 minutes
(factory default 204°F).
* Expect flow rate from hot water faucet to be 1 GPM from WB5N and 2 GPM from WB5NL
For the latest specifications and information go to www.wilburcurtis.com
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