1. home and garden
2. home improvement and repair
3. plumbing

Document 477102
Thermo Recovery Filter™ System
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble,
install, operate or maintain the product described. Protect yourself and others by observing all safety
information. Failure to comply with instructions could result in personal injury and/or property damage!
Thermo Recovery Filter™ System
WARNING
Electrical shock hazard. Product contains electrically
activated components. This can cause equipment
damage, personal injury, or death. Service must only
be performed by personnel that are knowledgeable
in the operation of the equipment being controlled.
Read the installation, operation, and maintenance
instructions thoroughly before installing or servicing
this equipment.
DANGER
Always disconnect power before working on or
near the control panel provided. Lock and tag the
disconnect switch or breaker to prevent accidental
power up.
CAUTION
All field installation of electrical equipment must be
done to meet all NEC and electrical codes.
General Description
Description and Purpose
The Thermo Recovery Filter™ system is an arrangement
of high efficiency grease filters with heat recovery coils
to be mounted in a commercial kitchen hood and piped
back to an existing water heater. While the smoke
and effluent generated off the commercial cooking
appliances will naturally be filtered, the heat generated
by the cooking process will be used to preheat water
being supplied to the water heater, thus reducing
operating expenses and the need for larger and more
expensive hot water heaters.
Product Application
The product is designed for Type I hood systems to
replace existing kitchen hood filters. It needs to be
connected to the building’s existing water supply.
Thermo Recovery Filter System
1
Table of Contents
Receiving, Unpacking, Handling, Storage . . . . . . . . . 2
Installation
Components and Installing Control Cabinet. . . . . . 2
System Installation. . . . . . . . . . . . . . . . . . . . . . . . . . 3
Plumbing and Electrical Requirements. . . . . . . . . . 4
Control Cabinet Layout. . . . . . . . . . . . . . . . . . . . . . 4
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Balancing and Testing Methods. . . . . . . . . . . . . . . . 6-7
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Codes and Standards. . . . . . . . . . . . . . . . . . . . . . . . . 8
Our Commitment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Receiving - Upon receiving the product, check to
make sure all items are accounted for by referencing the
bill of lading to ensure all items were received. Inspect
each crate for shipping damage before accepting
delivery. Notify the carrier if any damage is noticed.
The carrier will make notification on the delivery
receipt acknowledging any damage to the product.
All damage should be noted on all of the copies of the
bill of lading which is countersigned by the delivering
carrier. A Carrier Inspection Report must be filled out
by the carrier upon arrival and reported to the Traffic
Department. If damaged upon arrival, file a claim
with the carrier. Any physical damage to the unit after
acceptance is not the responsibility of the manufacturer.
Unpacking - Verify that all of the required parts and
the correct quantity of each item have been received.
If any items are missing, report shortages to your local
representative to arrange for obtaining missing parts.
Sometimes it is not possible that all items for the unit
be shipped together due to availability of transportation
and truck space. Confirmation of shipment(s) must be
limited only to items on the bill of lading.
Handling - Make sure the equipment does not suffer
any heavy vibration or knocks. Handle in such a manner
as to keep from scratching or chipping any coating.
Damaged finish may reduce the ability of unit to resist
corrosion.
Storage - Products are protected against damage
during shipment. If the product must be stored prior
to installation, it must be protected from dirt and
moisture. Indoor storage is highly recommended. For
outdoor storage, cover the control package with a tarp
to keep it clean, dry. The user assumes responsibility
of the equipment and accessories while in storage. The
manufacturer will not be responsible for damage during
storage. These suggestions are provided solely as a
convenience to the user.
NOTE
Improper storage which results in damage to the unit
will void the warranty.
2
Thermo Recovery Filter System
Installation
NOTE
All installation must follow local plumbing and
electrical codes.
Components
Components included with the energy recovery filtration
system.
Quantity
varies
Description
20 inch wide x 20 inch high (50.80 x 50.80 cm)
special energy recovery filters with quick
couplers/hoses attached
2
3/8 inch (0.95 cm) UL Listed hood penetration seal
1
18 inch (45.72 cm) stainless steel hose
1
24 inch (60.96 cm) stainless steel hose
1
24 inch high x 36 inch wide x 14 inch deep
(60.96 x 91.44 x 35.56 cm) control cabinet
1
Male disconnect
1
Female disconnect
1
Filter spacer
Installing Control Cabinet
The cabinet should be mounted to a
secure surface through the holes
around the back perimeter
of the cabinet. Use
at least six (6)
mounting holes
evenly spaced
around the back
perimeter of the
cabinet. If the
pre-drilled holes
do not work,
drill additional
holes around
the perimeter for
mounting. The
cabinet will weigh approximately 85 pounds (38.56 kg).
NOTE
It is the responsibility of the installer to ensure studs
or other structural members should be the point of
fastening when attaching this cabinet to a wall.
Cabinet shoul
a secure surf
holes around
perimeter of t
Use at least
holes evenly s
back perimete
If the pre-dri
work, drill add
around the pe
mounting.
System Installation
7
TO FILTERS
3/4 INCH FNPT CONNECTION
FLOW
7
6
HOOD TOP
HOOD TOP
8
10
9
FLOW
FROM FILTERS
3/4 INCH FNPT CONNECTION
12
TO WATER HEATER
FROM WATER
SUPPLY LINE
1 INCH FNPT CONNECTION
1 INCH FNPT CONNECTION
2
13
MUST BE IN ACCESSIBLE
LOCATION FOR TESTING
11
3
1
4
5
TO DRAIN
3/4 INCH FNPT CONNECTION
WATER
HEATER
PIPING PROVIDED
BY PLUMBER
0.75 to 0.875 inch
(19.0 to 22.2 mm)
diameter hole
ITEM
QTY
1
1
DESCRIPTION
Control Cabinet
2
1
Temperature / Pressure Gauge Incoming Water
3
1
Temperature / Pressure Gauge Heated Water
4
1
Pushbutton Switch, Pressure Release
5
1
Pushbutton Switch, System ON/OFF
6
6
20 x 20-inch Filter Assembly
7
2
3/8-inch FNPT Hood Penetration Seal, (one 11/8 inch hole)
8
1
18 inch Stainless Steel Hose
9
1
3/8-inch Quick Disconnect
10
1
24-inch Stainless Steel Hose
11
1
Thermal Expansion Tank (provided by others)
12
1
Water Hammer Arrestor (provided by others)
13
1
3/4-inch Turn Ball Valve To Test Flow Rate (provided by others)
4. Attach the 18 inch stainless steel hose (item 8) to
the left-most hood penetration seal, and the 24 inch
stainless steel hose (item 10) to the right-most hood
penetration seal.
5. Attach the extra female coupler to the 18 inch hose
(item 8) on left end of the hood, and the male coupler
to the 24 inch hose (item 10) on the right end of the
hood.
6. Install new filters in hood from left to right. Hook
up the quick-connect couplers between the filter
8
assemblies.
7
7. If applicable, install adjustable filter spacers to fill in
Used 297309
CAD Drawing from Tyler Schilling. Emailed
to Barbon
onthe
March
22, ends.
2011
the gap(s)
hood
10
Updated the PN of the Resistive Temperature Detector to 384925 as provided in edits from Aaron Van Krey - October 18, 2
8. Install all other plumbing, as shown on this drawing.
9
Please
refer
to plumbing
requirements
section
May 10, 2013 - used this drawing for the ThermoGreen
Filter
System.
Use the quik-seal
part found
in theon
Temperature Int
page
for more
information.
Installation Instruction drawing for the hood. Remove
the4Octagon
Extension
and the J-Box Plate (cover).
Deleted other portions of the drawing which are
relevent
theelectrical
ThermoGreen
Filter System
9.not
Make
all oftothe
connections.
Please refer to
3. Install a hood penetration seal (item 7) in the hood
electrical requirements section on page 4 for more
top above the filter rack. To do this, disassemble the
information.
compression seal and insert the seal into the hole
from the inside of the hood making sure the gasket is
placed on the
3/8 inch UL Listed Hood Penetration Seal
fitting before
PN 451167
Gasket
inserting it
into the hole.
Hood
Install the lock
Lock Washer
Nut
washer and
INTERIOR
OF HOOD
nut and tighten
securely as
shown.
EXTERIOR OF HOOD
1. Remove
the
existing filter(s) from commercial kitchen
Hood
Surface
hood.
2. Drill two 11⁄8-inch holes in the hood top above the
filter rack, one
Hood Surface
close to the left
and one close
1-1/8 inch
to the right side
(2.86 cm)
diameter hole
of the hood.
Thermo Recovery Filter System
3
Plumbing Requirements
1. Connect the main water supply connection to the
1-inch FNPT connection labeled “FROM WATER
SUPPLY”.
NOTE
The water supply line must be pressurized to 40 PSI
minimum.
2. Provide the piping from the water heater to the
1-inch FNPT connection labeled “TO WATER
HEATER”.
3. Provide the piping from the left-most hood
penetration seal on hood to the 3/4-inch FNPT
connection labeled “TO FILTERS”.
4. Provide piping from the right-most hood penetration
seal on the hood to the 3/4-inch FNPT connection
labeled “FROM FILTERS”. In line within this pipe
run, provide a water hammer arrestor (provided
by others), a thermal expansion tank (provided by
others), and a 3/4-inch turn ball valve to test the flow
rate (provided by others). This ball valve needs to be
in an accessible location for testing.
5. Provide piping to an external drain from the 3/4-inch
FNPT connection labeled “TO DRAIN”.
Electrical Requirements
WARNING
In colder climates, leave this jumper installed so the
pump operates in recirculation mode during frigid
periods when fan is not running. If cold air enters
through the exhaust fan(s) when the fan(s) are off
and the pump isn’t running, the pipes and filters may
potentially rupture and damage the energy recovery
filter system.
Control Cabinet Layout
Pressure
and
Temperature
Gauges
Pressure
Relief
Connection
Electrical
Controls
System
Pressure
Release
Throttle Valve
Shut Off Valve
Pump
ON/OFF
N1
N1
Pump Switch
RD
BK Pump Switch
INT-A
RD
BK
INT-A
R2
11R214
11 14
R3
INT-B
RD
INT-B
RD
BK
R1
BK
11R114
11 14
Pump
P1H
P1H
11 14
L1 Pressure Release
BKPressure Release
P1
WT
P1N
WT
P1N
Pressure Release Solenoid Valve
CONTROL INPUT: 120 VAC,
Pressure
Release Solenoid
Valve
WT
15 AMPS FROM
BREAKER
BK
SVH
BK
SVH
H1
SVN
SV
BK
SV
FROM FILTERS
PS
LT1
PS
BK Pump WT
P1
BK
TO FILTERS
TO
WATER HEATER
WT
R1
A2 A1
R1
A2LT1A1
11R314
WT
SVN
SHUT OFF VALVE
WT
WT
FROM
WATER
SUPPLY
N
WT
WT
N1
1. Connect 120 VAC power from a 15 amp breaker to
terminals
H1 and N1.
CONTROL INPUT: 120 VAC,
N
L1
15 AMPS FROM BREAKER
L1
CONTROL INPUT: 120VAC, 15AMPS FROM BREAKER
N
H1
L1
CONTROL INPUT: 120VAC, 15AMPS FROM BREAKER
N
N1
H1BK
Pump Switch
R2
RD
RD
WT
N1
R1
11 14
H1
A2
A1
N1
LT1
2. We provide two different
relays to PSinterlock with an
11 14
external fan run signal.
Pump
R1
WT
BK
WT
BK
P1
P1H
• Connect112414 VAC from the
hood
fanP1Ninterlock to
terminals F-24A and F-24B if 24 VAC is utilized in
Pressure Release Solenoid Valve
Pressure Release
the fan
control panel (provided
by
others).
WT
BK
WT
BK
SVH
SVN
SV
OR• Connect 120 VAC from the hood fan interlock to
terminals F-120A and F-120B if 120 VAC is utilized
in the fan control panel (provided by others).
R3
24 VAC From Hood Fan Interlock
F-24A
4
Circulation
Pump
N
CONTROL INPUT: 120VAC, 15AMPS FROM BREAKER
H1
H1
A factory-provided jumper will be installed between
terminals INT-A and INT-B to bypass the fan interlock
and ensure that the pump continues to recirculate
water through the filter system. This is recommended
in regions where outdoor temperatures fall near 40˚F
(4.4˚C). Remove this jumper if either of the hood fan
interlock relays are used as explained in item 2.
(to a drain)
Located in a NEMA-3R box in the center of the control
cabinet is the electrical connection cabinet. Both the
pump and pressure release solenoid valve will be wired
to the electrical
connections
cabinet from the factory.
CONTROL INPUT: 120VAC, 15AMPS FROM BREAKER
N
L1
L1
NOTE
BL
A1
R2
YW
A2
F-24B
120 VAC From Hood Fan Interlock
F-120A
Thermo Recovery Filter System
BK
A1
R3
WT
A2
F-120B
TO DRAIN
SHUT OFF
VALVE
Operation
NOTE
Start-Up Procedure
1. Turn on the fan for the kitchen hood.
2. Turn on the cooking equipment.
3. When the equipment reaches operating temperature,
push the green ON/OFF button on the control
cabinet to turn the system on.
4. Adjust the “Throttle Valve” to maximize overall
energy savings.
• Start with the valve half open.
• Monitor the “Inlet” temperature gauge on control
cabinet and adjust the “Throttle Valve” to maximize
the “Outlet” temperature.
• Do not completely close “Throttle Valve”, make
sure valve is at least one-quarter open.
• To maximize savings, the “Throttle Valve” must be
set during peak cooking conditions.
5. Turn the cooking equipment off.
6. Push the green ON/OFF button on the control
cabinet to turn the system off.
7. Turn the fan off for the kitchen hood.
NOTE
Do not completely close the “Throttle Valve” when the
system is operational.
Sequence of Operation
1. During cooking operations, turn on the fan for the
kitchen hood.
2. Push the green ON/OFF button on the control
cabinet to turn on the energy recovery filter system.
3. After cooking operations, push the green ON/OFF
button on the control cabinet to turn off the Thermo
Recovery filter system.
4. Turn off the fan for kitchen hood.
Maintenance
Cleaning filters
Filters should be cleaned a minimum of once a week
depending on the cooking equipment, cooking
frequency, food type and quantity. When servicing or
cleaning the filters, turn the pump power off (green
button on control cabinet should not be lit). Close the
ball valve in the cabinet that supplies the water to the
filters. Then press the ‘Pressure Release’ button on the
control cabinet for about 5-10 seconds.
Do not wash coil with a high pressure washer, as it will
damage the fins.
Do not take filter apart and clean it unless you are
a trained service technician. This is to prevent the
coated aluminum fins from being damaged.
When washing assembled filters in a dishwasher, it is
recommended to use Ecolab® Solid Metal Pro®
When serviced by untrained personnel:
1. Remove filter spacer from the hood.
2. Disconnect the quick connect couplers between the
filter assemblies.
3. Remove the filters from hood.
4. Place the filters, assembled, into a deep sink or
dishwasher and wash thoroughly.
5. Place the filters back into hood.
6. Hookup the quick couplers between the filters and
to the connections on the hood.
7. Insert the filter spacer.
If normal cleaning techniques are not
adequately cleaning the filters, then a trained
service technician should be requested to
service as follows:
1. Remove the filter spacer from the hood.
2. Disconnect the quick connect couplers between
filter assemblies.
3. Remove the filters from hood.
4. Position the filter on its back, face up, and unscrew
the four truss head machine screws from filter face.
5. Turn the filter over so it lies on its face.
Truss Head
Filter Front
6.Machine
Remove the filter back from assembly.
7. Screws
Remove the coil section from assembly.
8. Wash all three parts (front, back, and coil) in a sink
with mild detergent.
9. After all the parts are clean, lay the filter front face
Coil
down, and place the coil into
the filter front. Make
sure the hose connection is on the bottom of the
filter.
Hose
10. Place
the filter back over the top of the coil.
Connection
11. Turn the filter over so the face is now visible and
Bottom of Filter
replace the four machine screws.
Quick assembly
Connect
12. Place the filter
back into the hood.
13. Hookup quick couplers
between the filters and to
Filter Back
the connections in the hood.
14. Insert filter spacer.
Filter Front
Truss Head
Machine
Screws
WARNING
Make sure the “Pressure Release” button is pressed
before disconnecting anything. If system is not purged
properly, water spillage can occur, which can cause
hot water burns.
WASHING INSTRUCTIONS:
1. DISCONNECT QUICK CONNECT COUPLERS
BETWEEN FILTER ASSEMMBLIES.
2. REMOVE FILTERS FROM HOOD.
3. POSITION FILTER ON BACK, FACE UP.
UNSCREW THE FOUR TRUSS HEAD
MACHINE SCREWS FROM FILTER FACE.
4. TURN FILTER OVER SO IT LAYS ON IT'S
FACE.
5. REMOVE FILTER BACK FROM ASSEMBLY.
6. REMOVE COIL SECTION FROM ASSEMBLY.
7. WASH ALL THREE PARTS (FRONT, BACK
AND COIL) IN DISHWASHER OR A SINK.
DO NOT WASH COIL WITH HIGH
PRESSURE WASHER, AS IT WILL DAMAGE
THE FINS.
8. AFTER ALL THE PARTS ARE CLEAN. LAY
THE FILTER FRONT FACE DOWN, PLACE
THE COIL INTO THE FILTER FRONT. MAKE
SURE THE HOSE CONNECTION IS ON THE
BOTTOM OF THE FILTER.
9. PLACE THE FILTER BACK OVER THE TOP
Coil
Hose
Connection
Bottom of Filter
Quick
Connect
Filter
Back
Thermo Recovery Filter System
5
Balancing and Testing Methods
FIGURE 6.3 VELGRID ASSEMBLY
Shortridge Method
Place standoff spacers against
face of outlet or inlet grill,
filter, coil, etc.
With all the filters in place, determine the total hood
exhaust volume with a Shortridge meter as follows:
1. All of the cooking equipment should be on. If the
hood has internal short circuit make-up air, it should
be turned off.
2. Measure velocities
• Set up the Shortridge meter.
• For 20 in. (500 mm) wide filters, position the
grid as shown in Fig. A and B. Average the two
measurements.
• Take velocity readings for each filter.
3. Calculate each filter’s volumetric flow rate as follows:
Calculate each filter’s average velocity by summing
the velocity readings and dividing by the number of
readings for each filter.
Multiply the average velocity by the conversion
factor to obtain the volumetric flow rate for each
filter.
4. Calculate the hood’s total volumetric flow rate by
summing the volumetric flow rate of each individual
filter in the hood as calculated in Step 3.
Edge of outlet/inlet
active face area
Maintain 1½ inch
(38.1 mm) margin
Maintain 1½ inch
(38.1 mm) margin
Tubing harness
Pressure input ports
Swivel bracket
Tubing connectors
Neckstrap
Extension rods
External read jack
Pushbutton handle and plug
Handle bracket
Captive knob screws
Nominal Filter Size (H x L)
NOTE
For best accuracy, multiply the velocity of each filter
by its conversion factor and sum the flow rates.
Averaging the velocity measured for all filters may
cause error.
Inches
Millimeters
Imperial
Conversion
Factor
20 x 20
500 x 500
3.0
Metric
Conversion
Factor
.279
Example: Measured velocities for a 20 x 20 filter = 185 and 189 ft/min.
Average Velocity =
(Imperial)
(Metric)
=
=
Sum of Velocity Readings
14 in.
Number of Readings
185 + 189
2
3383 + 3456
2
Flow rate for one filter =
(355.6 mm)
2.75 in.
= 187.0 ft/min.
=
10 in.
(254 mm)
Conversion
Factor
x
Average
Velocity
17.25 in.
(2978.15 mm)
6 in.
(Imperial)
=
3.0
x
187.0 ft/min.
=
561.0 cfm
(Metric)
=
.279
x
3420 m/hr
=
954 m3/hr
(Imperial)
(Metric)
…
+ (Filter x Flow Rate)
= 561.0 + 555.2 + 534.6 + 539.9 =
2190.7 cfm
= 954 + 944 + 909 + 918
3725 m3/hr
Thermo Recovery Filter System
(69.85 mm)
3420 m/hr
Total hood flow rate = (Filter 1 Flow Rate) +
6
Fig. A
=
(152.4 mm)
Fig. B
10 in.
(254 mm)
Rotating Vane Method
Calculate the average velocity for the filter.
With all the filters in place, determine the total hood
exhaust volume with a rotating vane anemometer as
follows:
Rotating Vane
Anemometer
Airflow
3. Determine the filter’s conversion factor from the
table.
4. Calculate the filter’s volume in CFM (m3/hr) by
multiplying the average velocity by the conversion
factor.
5. Calculate the hood’s volume by repeating the
process for the remaining filters and summing the
individual filter volumes.
2 in.
(50.8 mm)
1. All of the cooking equipment should be on.
2. Measure the
velocities. Velocity
X
X
measurements
X
should be taken at
X
X
five locations per
filter. These must
L
be over a filter slot
Nominal Filter Size
as shown.
H/4
H
H/2
H/4
Nominal Filter Size (H x L)
Measure and record the velocity of each location.
A digital 2.75 in. (69.85 mm) rotating vane anemometer
or equivalent is suggested. The center of the
anemometer should be held 2 in. (50.8 mm) from the
face of the filters. It is helpful to make a bracket to keep
the anemometer at the
Rotating Vane
Anemometer
2 in. (50.8 mm) distance
Airflow
and parallel to the
2 in.
filter. Both squareness
(50.8 mm)
and distance are very
important for accuracy.
Inches
Millimeters
Imperial
Conversion
Factor
20 x 20
500 x 500
1.65
Example: Exhaust only hood with three 20 x 20H/4
filters
X
X
Measured velocities in ft/min. for one 20 x 20 filter
X
Average Velocity
=
(Imperial)
=
(Metric)
=
(4572 m/h)
256
(4681.73 m/h)
Sum of Velocity Readings
248
H/2
(4535.42 m/h)
H/4
255 + 250 + 256 + 248 + 240
5
.153
250
255
(4663.44 m/h)
H
X
X Number of Readings
L
Metric
Conversion
Factor
240
(4389.12 m/h)
= 249.8 ft/min.
4663 + 4572 + 4681 + 4535 + 4389
5
= 4568 m/hr
For a nominal filter size of 20 x 20, the conversion factor is 2.48 Imperial (.230 Metric)
Volume for one filter = Conversion Factor x
Average Velocity
(Imperial)
=
1.65
x
249.8 ft/min.
=
412.2 cfm
(Metric)
=
.153
x
4568 m/hr
=
699 m3/hr
Total hood volume
=
(Filter 1 Volume)
+
(Filter 2 Volume)
+
(Filter 3 Volume)
(Imperial)
=
412.2
+
430.9
+
410.7
=
1253.8 cfm
(Metric)
=
699
+
731
+
696
=
2126 m3/hr
Thermo Recovery Filter System
7
Troubleshooting
Replacement Parts
Pump does not run.
Part Number Description
• Confirm the fans are running and the pump switch
has been pressed to activate the pump.
• Check voltage on terminals H1 and N1 in the
electrical panel to confirm that there is 120 VAC.
• Check voltage on terminals F-24A and F-24B and
confirm that there is 24 VAC, OR check voltage on
terminals F-120A and F-120B and confirm that there
is 120 VAC.
• Check voltage on terminals P1H and P1N and
confirm that there is 120 VAC.
• Inspect motor for disconnected wires.
• Motor may be faulty or failing, service motor.
Filter Part Numbers
18 inch (45.72 cm) Stainless Steel Hose
476411
Relief Valve
476409
Female Coupler
476410
Male Coupler
459010
Temperature/Pressure Gauge
381050
Solenoid Valve
381049
Coil for Solenoid Valve
476329
Pump
System Parts (shipped loose)
• Confirm that the panel is running during cooking
operations/fan operation.
• Confirm appliances are running.
• Close off the throttle valve to help force more water
through the filters.
Do not close the throttle valve completely, as there
may not be enough water supplied to the water
heater.
Core Heat Exchanger
476407
Cabinet Part Numbers
Hot water heater inlet temperature is not hot
enough.
WARNING
475863
476408
24 inch (60.96 cm) Stainless Steel Hose
451167
3/8 inch (0.95 cm) UL Listed Hood
Penetration Seal
476409
Female Coupler
476410
Male Coupler
Codes and Standards Compliance
• UL 1046
• NSF/ANSI Standard 2 – Food Equipment
Pressure release button will not purge water to
drain.
• Confirm the ball valve that supplies water to the
filters is closed.
• While holding the button, check the voltage
between SVH and SVN to confirm 120 VAC.
• The pressure release solenoid valve may be faulty or
failing, service solenoid valve.
Our Commitment
As a result of our commitment to continuous improvement, we reserve the right to change specifications without
notice.
Aqua Filters, LLC • Box 325 • Lakewood, WI 54138 • E-mail: [email protected] • Phone: 888-580-5559
Trademark Information: Dragon Fire Thermo Recovery Filter™ is the registered trademark of National Wholesale Supply, Inc.
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477102 • Thermo Recovery Filter System, Rev. 2, February 2014
Copyright 2014 © Kitchen Ventilation Systems, LLC