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WILBUR CURTIS COMPANY   

Montebello, CA 90640

MODELS INCLUDED

 WB-10-12

ISO 9001:2008

C

CAUTION: Please 

use this setup 

procedure before 

attempting to use this 

appliance. Failure to follow 

the instructions can result in 

injury or the voiding of the 

warranty.

WARNING

 HOT 

LIQUID, Scalding 

may occur. Avoid 

splashing. 

Water Boiler, 10 Gallon – Service Manual

The Curtis Water Boiler is Factory Pre-Set and Ready to Go… Right from the Carton.

Factory Settings:

 

• Water Temperature = 200°F 

 

• Volume = 10 Gallons

System Requirements

 

• Water Source: 20 – 100PSI (Min Flow Rate of 1 GPM)        • Electrical: See electrical schematic.

SETUP STEPS

1. Place unit at counter height. on a firm, level base, in such a way that it can be connected to water and power supply.
2. Install the supplied water faucet on the faucet shank in front of the unit.
3. Connect water line to inlet fitting on valve. It is recommended that some type of water mineral reducing filter be used  

in the water line before entering the unit. Water pressure entering boiler is must be stable and provide minimum of  

1 gallon per minute. Use water regulator for constant pressure. Required water pressures, 20 to 100 psi. Turn on  

water valve.

5. Hook-up power to the unit (refer to schematic for power requirements). 
6. Turn on the circuit running power to unit. The water inlet valve will open, filling the unit. When the boiler has filled,  

turn on boiler at the thermostat, twisting the knob clockwise.

7. Heating tank will require 50 to 60 minutes to attain operating temperature. Thermostat indicator will light at this time.

This appliance is designed for commercial use. Any servicing other than 

cleaning and 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 side or bottom  

  panel. No user serviceable parts inside. 

  •   Keep hands and other items away from hot parts of unit during  

  operation.

  •   Never clean with scouring powders, bleach or harsh chemicals.

Important Safeguards/Conventions

Symbols:

WARNINGS – To help avoid personal injury

Important Notes/Cautions – from the factory

Sanitation Requirements

NSF International requires the following water connection:

1.  A quick disconnect or additional coiled tubing (at least 2x the depth of the unit) so that the machine can 

be moved for cleaning underneath.

2.  This equipment is to 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 potable water supply shall be sized, installed 

and maintained in accordance with federal, state, and local codes.

W

ilbur

 C

urtis

 C

ompany

, i

nC

.

WARNING: DO NOT 

place this water 

boiler closer than 

six [6] inches from 

wall. Unit must have adequate 

cross-ventilation.

CAUTION: DO NOT 

connect this unit 

to hot water. The 

inlet valve is not rated for hot 

water.

FOR THE LATEST SPECIFICATIONS AND INFORMATION GO TO WWW.WILBURCURTIS.COM

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