Vollrath Modular Drop-In Auto-Fill User Manual

ENGLISH

Operator’s Manual

MODULAR DROP-IN AUTO-FILL

Item Description

26806 Modular Drop-In Auto-Fill 80 PSI 120 16 5-15P

Thank you for purchasing this Vollrath equipment. Before operating the equipment, read and familiarize yourself with the following operating
and safety instructions. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE. Save the original box and packaging. Use this
packaging to ship the equipment if repairs are needed.

Max. Water

Pressure

Voltage Watts Plug

Item No. 2350072-1 Rev 10/12

Countertop Warming and display

Safety precaUtionS

To ensure safe operation, read the following statements and
understand their meaning. Please read carefully.

WARNING

Warning is used to indicate the presence of a hazard that can cause
severe personal injury, death, or substantial property damage if the

warning is ignored.

CAUTION

Caution is used to indicate the presence of a hazard that will or can
cause minor personal injury or property damage if the caution is
ignored.

NOTE

Note is used to notify people of installation, operation, or
maintenance information that is important but not hazard-related.

For Your Safety!

These precautions should be followed at all times. Failure to follow
these precautions could result in injury to yourself and others.

To reduce risk of injury or damage to the equipment:

 Read and understand all installation and operation instructions before

installing or operating equipment.
 Have this equipment installed by qualied service personnel.
 Use only grounded electrical outlets matching the nameplate rated

voltage.
 Do not spray controls or outside of equipment with liquids or cleaning

agents.
 The control box must be installed in a dry location.
 Do not use an extension cord with this equipment. Do not plug this

equipment into a power strip or multi-outlet power cord.
 Do not operate without water.
 Keep equipment and power cord away from open ames, electric

burners or excessive heat.
 Do not operate unattended.
 Do not operate if equipment has been damaged or is malfunctioning in

any way.

fUnction and pUrpoSe

This product is intended to maintain the water level in a hot food unit at a
predetermined level.

This equipment is not intended for household, industrial or laboratory use.

operational Statement

This Auto-ll unit operates by lling a water reservoir that represents an
additional well. This reservoir has a oat switch installed that is closed when
the tank is empty. When the Auto-Fill system is turned on, the closed oat
switch allows power to ow to the solenoid valve, opening the solenoid valve
and allowing water to ow into the drain system through a check valve.

As water lls the drain line, it will ll each well and the Auto-Fill reservoir at
approximately the same rate. When the water reaches the oat switch, the
switch will open, stopping the power supply to the solenoid valve and the
solenoid valve will return to its normally closed position stopping the ow of
water into the system.

Unpacking the eqUipment and initial SetUp

When no longer needed, dispose of all packaging and materials in an
environmentally responsible manner. Have the unit installed only by qualied
service personnel. This unit must be installed in accordance with any local
and national plumbing codes.

 A shut-off valve to control the fresh water supply to this product is

required.
 This unit requires a 120Volt 15Amp electrical outlet.
 Units using this auto-ll unit MUST NOT SHARE A DRAIN LINE with

any other units that do not have the same well depth.
 Multiple units with the same well depth may share a drain line provided

they are level to each other within ¼”.
 Maximum water pressure is 80 PSI.

NOTE: A water lter to remove particles that may clog the solenoid valve is

strongly recommended.

1. Remove all packing material and tape, as well as any protective plastic
from the equipment.

2. Clean any glue residue left over from the plastic or tape.

3. If installing this Auto-ll on a Vollrath drain manifold, cut off the pipe cap
from the end of the drain manifold assembly that is on the opposite end
of the main drain valve.

4. Solder the Auto-Fill manifold assembly (A) to the open end of the drain
line (B) from step 2 making sure the auto ll manifold is level with the
existing drain manifold. Figure 1.

Figure 1. Drain Line and Manifold Assembly .

5. For installation with Rectangular Drop-In For initial setup, mount the

Auto-Fill main body water reservoir (B) level to the bottom of any full size
Vollrath hot well (C) unit outer skin. Mark and use appropriate length
fasteners to mount reservoir (B) assembly in a level position (D) to the
bottom of the well assembly (A). See Figure 2.

6. For use with Round Soup Drop-In: Install the reservoir (B) 5/8”
(15 mm) below the bottom of a Vollrath round soup drop in unit outer
skin. See Figure 2.

1. The adjustment procedure above should be used with soup pots with
the understanding that the water level the unit will maintain is the water
level when there is a soup pot in use. The recommended 5/8” (15 mm)”
placement of the reservoir below the soup warmer (In the installation
section above) will maintain water at the water level mark in the well.
However at this level, if a soup insert is placed into the soup warmer that
has water lled to this mark without an insert in place, when inserted the
insert will displace some of the water up the sides of the soup warmer.
Because the water will level out in the entire system, this may cause the
reservoir tank of the auto-ll unit to overow.

B

C

A

D

2

OperatOr’s Manual

Countertop Warming and display

C

B

A

D

Figure 4. Solenoid Valve, Flexible Hose, and Fittings.

Figure 2. Water Reservoir and Well Assembly.

10. Using the section of the exible hose (D) coming from the “O” side of the

7. Mount the auto-ll control box (A) at any convenient dry location close to
an access door. See Figure 3.

solenoid (C) connect this hose to the ant-siphon valve (E).

11. Using the section of the exible hose (F) coming from the reservoir tting
(G) to the tting (H).

Start Up and teSting

A

B

C

Figure 3. Control Box, Switch and Light.

WARNING

Water Contamination Hazard.

The overow drain line must not be connected
to any drain. It must be routed to an open drain
leaving a air gap separating the overow drain line
from the top of the open drain reservoir.

8. Using the section of the exible hose marked and/or coming from
outlet (E) side of the water tank, route this line to an OPEN FLOOR
DRAIN. This drain MUST not be directly plumbed to the auto ll unit. This
is done to prevent contamination of the fresh water supply. See Figure 4.

9. Using the section of the exible hose (A) coming from the “IN” or “I” side
of the solenoid (B) connect this hose to your fresh water source. See
Figure 4.

1. Plug the auto-ll control box into a grounded 120 Volt 15 Amp electrical
outlet.

2. Verify the main drain valve is in the CLOSED position to prevent water
from draining out. Be sure the individual well drains are in the OPEN
position to allow water to ll the wells from the drain manifold.

3. Turn the fresh water supply valve on. Start with the valve in the full open
position.

4. Turn on the Auto-ll system using the switch on the control assembly.
The red indicator light should come on indicating power is supplied to the
unit and water should ow into the system.

NOTE: If a continuous stream of water begins to ow out of the
overow tube when lling the unit, stop lling and drain the unit. Close
the water supply valve from step 3 part way to reduce water ow. Rell
unit. Continue this process until water does not ow out of the overow
when lling the unit. It is normal to have small amounts of water ow
out the overow while the unit is lling.

5. The auto-ll system may cycle on and off a few times, with delays,
before the water level is stabilized. The number of cycles and delays are
dependant on water pressure, number of wells lling, etc. Do not attempt
to adjust the water level until the system has fully stabilized. When the
system does not cycle on or off after a full minute, the system should be
stabilized.

6. When the system is stabilized, check the water level in each of the wells.
For proper water level control it is important the hot food unit be level.
Each well should have approximately the same amount of water.

7. If the water level is too low, loosen (do not remove) the screws used
to mount the reservoir assembly. Lift the reservoir assembly up
approximately 1/8”. Retighten the screws. There may again be a delay
before the system begins to ll. Allow the system to stabilize again and
re-check the water level.

8. Continue the adjustment until you have the water level adjusted to the
desired level. The water level should not be adjusted above 1/2” of water.

9. For most efcient heating and performance, use approximately 1/4” of
water in each well.

C

G

F

D

E

H

B

A

ENGLISH

OperatOr’s Manual

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