Grease Guardian GGX7 Owner's manual

Automatic Grease
Removal Unit
MODELS GGX7, 15, 20, 25, 35
MANUFACTURED BY FM ENVIRONMENTAL
www.greaseguardian.com
GGX V5
INSTALLATION
OPERATION MAINTENANCE

2
CONTENTS
The FM Environmental Grease Guardian X series automatic grease removal
unit (GRU) is a totally engineered system for separating free oating
grease and oils from drain water ows. The separated grease and oils are
trapped within the stainless steel tank and are automatically recovered
by the system. Only the “cleaned” water is allowed to pass through the
system into the drain lines. Each unit also separates solid food waste into
a removable basket. The Grease Guardian can be used in a wide variety of
applications from restaurants and food processing operations to many types
of industrial operations.
Use of the Grease Guardian assures that costly sewer surcharges and nes
are minimised or eliminated through efcient separation and removal of the
grease and oil. In addition, rapidly escalating pumping and disposal costs,
which are associated with conventional grease traps or interceptors are also
reduced or eliminated. When properly operated, the recovered grease and
oils are virtually water free so they can be collected by a local rendering
Company or recycler.
GREASE GUARDIAN X RANGE
Grease Guardian X Range ............. 2
How it Works ................................. 3
Dimensions & Specications ...... 4-5
Installation .................................. 6-9
Grease Guardian Controller ..... 10-17
User Maintenance ......................18-19
Tri-Monthly Servicing ....................... 20
Troubleshooting .................... 21-23
Components Overview .............. 24-25
APPENDICES
Wiring Diagram ............................. 26
Warranty ...................................... 28

3
HOW IT WORKS
Grease, solids and wastewater from the kitchen enters the
Grease Guardian.
Solid food waste is caught in a removable cylindrical strainer for easy
disposal.
One of the programmed cycles is set. The grease passes into the
middle chamber through slots in the bafe wall where it remains
trapped. With the assistance of a heater the grease separates from
the wastewater and rises to the surface more rapidly.
The liqueed grease adheres to the rotating skimming drum
The grease passes down a scraper blade into a collection container
where it can be removed and disposed hygienically.
The treated water exits under a bafe wall and through the outlet
to drain.
1
2
3
4
5
6
Rear view section
5
6
1
2
3
4

4
PRODUCT DIMENSIONS & SPECIFICATIONS (110V)
Casing Material
(all models)
16 Gauge; 304 Stainless Steel;
Bright nish
Motor
(all models)
25 Watt 110v, 60 Hz
4.5 µF capacitor
Heater
(all models)
600 Watt, cartridge, 110v,
Thermal cut-out inc.
Time Control
(all models)
Logic Controller:
Backlit display
Inputs 110 VAC
Outputs 110 VAC
Battery back up
Skimming
(all models)
Maximum skimming rate in
test conditions 1.32 gal/hr
Model
GGX7 GGX15 GGX20 GGX25 GGX35
Hydraulic
Flow gal/
min
7.00 15.00 20.00 25.00 35.00
Strainer
Basket
Cap, gal
1.45 1.45 1.45 1.45 1.45
Grease
Collector
Cap, gal
1.18 1.18 1.18 1.18 1.18
Front view
Top view
Side view outlet end
Model (inches)
A B C D E F G H
GGX7 27 201
/
2133
/
82203
/
8153
/
491
/
27
GGX15 311
/
8241
/
2133
/
8222 153
/
495
/
841
/
2
GGX20 321 /
2261
/
415 222 153
/
4111
/
261
/
4
GGX25 321 /
2257
/
8161
/
2222 153
/
4123
/
471
/
2
GGX35 40 3 /
4341
/
2161
/
2324 153
/
4123
/
49
* Inlet/Outlet nominal pipe size (NPS)
*

5
PRODUCT DIMENSIONS & SPECIFICATIONS (240V)
Model (mm)
A B C D* E F G H
GGX7 686 453 340 40 520 401 240 185
GGX15 788 623 341 50 560 401 214 125
GGX20 826 660 381 50 560 401 288 160
GGX25 826 660 421 50 560 401 288 160
GGX35 1039 876 421 80 610 401 288 187
* Inlet/Outlet DN pipe size
Casing Material
(all models)
16 Gauge; 304 Stainless Steel;
Bright nish
Motor
(all models)
25 Watt 240V, 50 Hz
1.3 µF capacitor
Heater
(all models)
GGX7 & GGX15/20 - 600 Watt,
cartridge, 240V, Thermal cut-out
inc.
GGX 25 & GGX 35 - 1000 Watt,
cartridge, 240V, Thermal cut-out
inc.
Time Control
(all models)
Logic Controller:
Backlit display
Inputs 240V AC
Outputs 240V AC
Battery back up
Skimming
(all models)
Maximum skimming rate in test
conditions 5 litres/hr
Front view
Top view
Side view outlet end
Model
GGX7 GGX15 GGX20 GGX25 GGX35
Hydraulic
Flow l/sec 0.50 0.94 1.25 1.58 2.21
Strainer
Basket
Cap, Litres
3.00 3.00 3.00 3.00 3.00
Grease
Collector
Cap, Litres
4.50 4.50 4.50 4.50 4.50

6
INSTALLATION
Inlet piping. - Drain piping from the sinks/oven should be 2 inch Ø
(50mm) minimum. Ensure that a fall of 1/3” inches per foot (1:40) is used
and keep the inlet pipe as short as possible to avoid grease build-up
before it reaches the unit. If the unit is serving more than one xture
ensure that the respective drain pipes are joined in a T-piece before they
enter the unit piping. Install "P" or "U" trap in the inlet piping from sinks
as normal. Rubber Couplings with screw clasp are included.
Outlet piping - Ensure a fall of 1/3” per foot (1:40), only use "sweep"
connections and minimize the number of bends used. Do not reduce
the size of the pipe used in the outlet, keep the outlet piping as short as
possible and do not install any P-traps (the units has an in-built internal
gas trap). Note that if the unit overows during operation the problem
normally lies with the size and layout of the outlet piping which is not t
to take the full ow freely.
Applies only for installations in the US:
The unit is provided with an internal ow controller to limit the ow
going through. If the local plumbing code requires a vertical type ow
regulator, or if the unit is receiving ow from xtures installed at head
(over 6 ft, such as when installing units in basements) and to comply with
PDI requirements, a proper ow control device with air intake must be
tted on the inlet piping. Suitable air intake pipework should be
Part I: Grease Guardian X
Rear View – Straight Through Example
To plan a suitable location for the GGX rst refer to “Product Dimensions
and Specications” page in this manual to check available clearances.
Position the unit as close as possible to the xture it is serving to minimize
grease build-up in the piping.
Do not connect the system to food grinders, potato peelers or waste
disposal units. Such installations will void the Grease Guardian's Warranty.
Connection Sequence:
1
2
3

7
routed to the top of this ow controller and connected to a vented
waste stack within the building. Note that if the Grease Guardian is
serving multiple xtures, some plumbing codes ask that each xture is
equipped with its own ow control device.
Plumbing Drainage Institute Flow Control with Air Intake
GGX7 units, part reference: 22107
GGX15 units, part reference: 22115
GGX20 units, part reference: 22120
GGX25 units, part reference: 22125
GGX35 units, part reference: 33135
Inlet and Outlet piping connections. Rubber Couplings with screw
clasps are included.
Rubber blanking caps - included, for sealing off disused
inlet/outlet ports.
Single Phase Three Pin Plug – connect to water proof socket.
To provide continued protection against risk of electric shock, connect
to properly grounded outlets only.
To avoid possible siphoning problems, an outlet pipe vent (or code
approved air admittance valve) which is at least 1/2the outlet pipe
diameter should be located as close as possible to the Grease
Guardian unit.
Upon request Grease Guardian X unit comes complete with a wash
spray bar located inside the main chamber. With all grease removal
units, and depending on the application, over time a crust may form
on the surface that inhibits proper operation and grease recovery. In
such applications the frequent use of the washing operation ensures
best treatment. A hot water supply is to be plumbed to the 1/2” inlet
connection to allow the spray wash operation if required.
4
5
6
7
8
All instructions and drawings provided in the booklet are for reference only.
The equipment provided is to be installed in compliance with local legislation,
regulation and codes. Installation by a qualied plumber who is knowledgeable
on the local plumbing codes is necessary.

8
Part I: Further Plumbing Arrangements
Refer to specication page in this manual for minimal clearances
before nalizing unit location and orientation
REAR VIEW
REAR VIEW
INFLOW
OUTFLOW
INFLOW
OUTFLOW

9
1. Ensure the unit is positioned on a level surface only and is plumbed in
securely.
2. The Grease Guardian unit should only be plugged into a properly
grounded 3-prong 115 VAC 1 phase or 230 VAC 1 phase outlet. Ensure
electrical outlet is waterproof and is tted with or supported by a
dedicated ground fault circuit breaker/interrupter (GFCI).
Points 3 and 4 below should normally be carried out by your market
representative as part of a formal unit commissioning:
3. Prior to mains switch-on ensure the unit is lled with water to the correct
settlement level which occurs when the inowing water stabilises at the
base of the skimming drum. Ensure strainer basket is in the fully closed
position.
4. Set the controller time of day and appropriate cycle programme in
accordance with timer setting instructions detailed in this manual.
• NEVER TURN UNIT ON before lling
with water as instructed above
• Disconnect unit from mains before
accessing any electrical components
• The unit requires daily housekeeping.
Quarterly service by an approved
engineer is recommended
• The unit will lose efciency if not
maintained properly
• The unit is designed to trap and remove
free oating grease oils and fats only
• To help ensure the highest efciency
reduce solid foodwaste by installing
primary strainers or scraping waste into
bins before washing. The “secondary”
solids basket provided protects the unit
from solid food waste build up
• Consult your supplier in the event
of increased loadings to the Grease
Guardian
• Do not use Hazardous detergents
to clean the unit, and do not pour
detergents directly in to the unit.
• Do not install unit externally unless
weather proof cover is used
• Do not install the unit in any manner
except as tested and rated under ASME
A112.14.3 and ASME A112.14.4
• Do not connect food grinders, potato
peelers, waste disposal units or similar
devices upstream from the Grease
Guardian
• Ensure the unit is level and installed at
on the ground or frame where specied
• Remove blockages and grease build up
from drains before installing the Grease
Guardian
• If the supply cord is damaged it must be
relaced by the manufacturer or authorised
distributor
• Operation of the unit must be performed
by trained personnel only
Part II: Pre start up checks
HEALTH, SAFETY AND EFFICIENCY

10
From the main display access the above display
by pressing OK and ESC together. Choose
“Miscellaneous” using - or + keys then press OK.
In the follow on display use the + and - keys to
move the ashing bar to select “CLOCK”. Press
OK to conrm.
Next, use the + and - keys to select “DATE/
HOUR SETUP”, and press OK.
Use the + and - keys to move the ashing bar
to select current hour and minutes blocks. Enter
and change these digits by pressing OK, then
use + and - keys to increase/decrease values.
Press OK to conrm current value. Press ESC to
save and return to home display.
CONTROLLER
Time of Day and & week day setting
- only to be set during commissioning
Time of the day

11
Week Day Setting
Note: The controller is factory set with all 7 days set to active.
Only reprogram if this is not suitable and there is a requirement that the unit
does not need to operate on particular days during the week.
From the main display access the above display
by pressing OK and ESC together. Choose
“Parameter” using - or + keys then press OK.
The above display will show. Next using only the
“-” key move the cursor to the “D:MTWTFSS”
block (days of week). To access particular day
value press OK. Then press “-” to cancel any
day. Pressing OK conrms cancella- tion and
moves the cursor to the next day. On reaching
nal day value, S, press OK to conrm all.
Example:
Controller set to OFF at weekends; the display is
congured as above. Press ESC to exit to home
display.

12
GREASE GUARDIAN CONTROLLER
Cycle Programming
Initial Note: if no user adjustments are made a
factory setting from 8am-12pm starts the unit on
a LOW cycle daily. This is adequate for smaller
applications including out of town delis, or small
restaurants. Refer to appendix 1 at back of this
manual for recommended settings for your
application.
After machine switch-on, the home screen
appears displaying the controller software
version (in this case U for USA and version date
ddmmyy). The current time of day, and cycle
mode are also displayed. The unit displays
“Standby” when not in cycle.
To change a cycle rst choose from one or more
of the 4 hour programs 08:00-12:00, 12:00-
16:00, 16:00-20:00, and 20:00–00:00, accessed
by pressing the OK and A buttons together.
Then advance through the time slots available by
re-pressing A.
Any time-slot can be set to ON/OFF by pressing
the B button. On completion press ESC to return
to the home Screen.
Finally in the home screen press and hold either
the + or - keys for 1 second to ne tune the cycle
duration. The display will indicate the adjustment
made from 3 options:
• LOW Cycle Mode
• MEDIUM Cycle Mode
• HIGH Cycle Mode
See Appendix 1 for suggested example settings for your application.

13
During a cycle the heating element and skimmer
motor are activated intermittently to heat up
and skim fats oils and greases. The main display
ashes the message IN CYCLE. The full cycle
sequence is shown in Appendix 2 for program
options available.
The time control displays the following
information at various stages of a cycle.
Additional features
Heater Off Mode
When wastewater entering the unit is sufciently
hot or if light oils are being intercepted the
heater element may not be required. With this
in mind there is an option to run cycles with the
heating element deactivated. This feature will
also provide savings on energy bills.
To disengage heating element: from the Home
Screen hold in button “B” for 10 or more
seconds. The display appears as shown. In this
mode the system runs any cycle with only the
skimmer motor running at its normal pre-set
operation. This cycle sequence is also shown at
the bottom of Appendix 2.
To re-engage the heater simply hold in the B
button again for 10 seconds until The “HEATER
OFF MODE” is cleared.
Building Management System Feature:
Please note that the output switch No. 4 of this controller is available for connection
to BMS system. The rating for this output is 24 to 250VAC, 8 AMPS max.
The signal to BMS from this output is factory programmed to indicate
power ON during normal operation of the controller.
If either a/ there is a power failure or b/ if the main tank lid is misplaced from
the system for more than 10 minutes, then the continuous signal to BMS is
interrupted, indicating that either of these faults has occurred.

14
Test Mode
A test of electrical components can be carried out.
Press - and + together to access this screen from the
Home display. Next press any of the Test mode keys
to activate the corresponding output:
• Press A key to activate Heater.
• Press B key to activate motor/skimmer.
• Press - key to activate Output 3.
• Press + key to activate Output 4.
Return to main menu by pressing ESC.
Lid Off Alert
If the main tank cover is removed from the unit at
any time both the heater and motor will be stopped
automatically for safety reasons. The display will ash a
LID OFF alert until the lid is replaced. Power is restored
to the heater and motor after the lid is replaced.
Daily Maintenance Access Time;
Standby Mode
1 or 2 times daily both the solids strainer and plastic
grease collection container should be checked and
emptied. It is preferable that these tasks are only carried
out when the unit is NOT in cycle and is in Standby as
shown on the display.
Scheduled Service Reminder
The Grease Guardian unit requires periodic service
inspection and pump out by qualied personnel.
To assist, the controller is pre-set to display a service
due reminder as shown on the due date. Please contact
your Service Provider when this display appears. The
reminder will normally ash at least once every 90 days
in line with service and pump out requirements for this
product.

15
SKIMMER DURATION SCREEN
The default for the X7 unit is 600 seconds ON
and 300 seconds OFF. To adjust: use keys "-"
& "+" to navigate to the ON value. Then press
"OK" to lock on to the value. Next use "-" &
"+" again to increase or decrease the value.
Conrm the setting by pressing "OK" again.
Next move the cursor using "-" & "+" to the
OFF value and repeat the setting procedure,
conrming settings with "OK".
SOLENOID WASH SETTING SCREEN
In GGX7 units and any X15-35 unit with a
solenoid upgrade, pressing "A" again after
the Skimmer Duration screen settings are
complete will call up the solenoid duration
display. This display sets time limits for water
owing to the spray bar. The default on this
unit is 5 ON and 55 OFF. To adjust: use keys
"-" & "+" to navigate to the ON value. Then
press "OK" to lock on to the value. Next use
"-" & "+" again to increase or decrease the
value. Conrm the setting by pressing "OK"
again. Next move the cursor using "-" &
"+" to the OFF value and repeat the setting
procedure, conrming settings with "OK".
After all settings are made, Return to Home
Screen by pressing ESC.
SKIM DURATION
ON(SECONDS) : 00600
OFF(SECONDS): 00300
SOLENOID DURATION
(ON SECONDS) 00005
(OFF SECONDS) 00055
Additional Program Screen For Solenoid Equipped
Units, Including GGX7 Standard
Wiring Diagram for GGX7 and other solenoid equipped units is in the Appendix section
ADDITIONAL SCREEN:

16
USER MAINTENANCE
Part I: Daily Strainer Maintenance, 1-2 times daily
Strainer cap shown in the locked or
closed position.
To unlock the cap rotate it counter
clockwise using the hand grips.
Shake off excess water before removing
strainer by turning it while still in its
internal cage mount.
Next remove the strainer by simply
sliding it forward.
After cleanout replace the strainer inside the tank and replace the screw cap back
into its locked position.
Attention: Ensure sinks are fully emptied before accessing the strainer basket!
While the strainer basket is out of position for cleaning, no water should be
drained from the sinks or xtures.

17
Part II: Daily Grease Collection Maintenance,
1-2 times daily (depending on amount of oil collected)
When the grease container is about
3/4 full remove it by sliding it outwards
as shown. Dispose contents to an on
site oil recycling bin or bulk oil waste
container.
Check and clean the wiper blade.
Access is gained to the blade by
removing the grease container and
hood from its hanging bracket as
shown.
After cleaning, reposition the wiper
blade.
Once in position replace the main lid,
container hood and grease container.
Part III: Additional Maintenance — Wiper Blade
Weekly Check

18
1. The mains supply to the unit must
be rst switched off!. The main Lid is
removed by unclasping the fasteners
highlighted in diagram.
3. Inspection of wear and tear parts.
Including wiper blade, lid seal gasket
and strainer seals. Replacement of any
parts found to be worn or defective.
2. The internal chamber walls are
power/steam cleaned. Both chambers
are then pumped out completely. The
heating element should be checked
and cleaned using a plastic brush. The
unit is relled using the water ow from
the sink.
4. Electrical checks including controller,
heater and motor checks. Optimisation
of operation should be made if
necessary.
TRI-MONTHLY (90 DAYS) SERVICE
By approved Service Partner
To ensure correct longterm performance and to comply with our warranty terms all
units must be serviced tri-monthly. This must be carried out by an FM Environmental
approved service partner in possession of the necessary waste carriers licence for
your area.

19
TROUBLESHOOTING
PROBLEM: Unit not removing grease
Is the power on?
Check that the power is on and that the time control is set correctly. If the
power is being supplied and there is no display check fuses or contact
your supplier.
Is wiper blade and wiper slot clean?
Clean any build-up present on the wiper blade assembly and the grease exit
slot. Ensure the wiper blade is located in place and it makes proper contact
with skimming drum. Remove the main lid to check this if necessary. Replace
wiper blade plastic end if worn.
Check the cycle status
First check that “IN CYCLE” is displayed at the start of a cycle. Later in the cycle
the skimming motor should be audible. Should there be no skimmed grease
emerging during the cycle a further test can be conducted by entering TEST
mode as described earlier in this manual. With the main lid removed and with
hands kept clear of the skimming drum use this feature to check that the
motor is running by pressing the B button when in the TEST mode.
Inadequate Heating?
With the lid removed press the B button when in TEST mode. If the drum is
turning but grease is not being removed it may not be dissolving or separating
out. If the grease appears hard or crusted, the GGX heater may require
inspection or replacement as the grease may not be dissolving under heat.
Emulsied/starchyfoods,orsoapingproblemsinthewasteow?
If the surface grease layer is liquid or foam-like in appearance and grease
is still not skimming out then it may contain high volumes of dairy waste
such as mayonnaise, or starchy waste from rice or pasta. Ensure to reduce
volumes of this waste entering the GGX unit. Also ensure to reduce the use
of aggressive detergents and do not dispose any bleaching agents into the
unit. Only neutral handwashable detergents should be used at the sink.
Heavy oven cleaning agents can adversely affect performance if ovens are
connected to GGX. Turn the spray wash valve for a few seconds to allow
water to break up any crust that formed on the water surface.
Note that at times the unit does not remove any grease because there is
only a small layer of grease collected. By design, units will never skim out
all the grease and some will always be present on the water surface.

20
Check the main Lid and Lid-switch
The unit will not operate in cycle with the lid removed. This is a safety
feature. With the exception of some maintenance tasks the lid must be
fastened in place correctly at all times so that the pushbutton switch is
depressed by the lid pressure tab. If this is not the case then the controller
display will blink a LID OFF message.
If the message continues to show but the lid seems secure then there may
be a fault with the lid switch itself.
PROBLEM: Excessive Water inside the grease
collection container
Check Timer Settings
The unit will skim off water if there is little or no grease left in the main tank.
Excessive water will typically settle below the grease layer in the collector. Check
the timer settings for excessive ON times. The ON time should be scaled back
to reduce water being skimmed into the collector.
PROBLEM:SurgeWateringreasecollectorand/or
spillagesontooor
In rare cases an obstructed exit from the unit may lead to a water level rise in
the main tank which can spill into the grease collector suddenly and in turn
onto the oor, if left unchecked.
Ensure the outlet pipe-work from the Grease Guardian is of the right size and
at a gravity fall as descirbed earlier. If bends are used, check that these are not
blocked and creating an obstruction to the ow.
Ensure that the water ow to the unit does not exceed its rated ow rate.