Price FFU series Manual

v100 –Issue Date: 07/10/20
© 2018 Price Industries Limited. All rights reserved.
MANUAL – INSTALLATION + SERVICE
Fan Filter Unit
FFU Series

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FAN FILTER UNIT
TABLE OF CONTENTS
Product Overview
Read and Save These Instructions................................ 1
Before You Start ........................................................... 1
Introduction .................................................................. 2
Installation Instructions
Module Installation........................................................ 3
Speed Controller Installation & Operation...................... 4
PSCSC/WK............................................................... 4
ECMSC ..................................................................... 5
BACnet Flow Controller (BFC)...................................... 6
Filter Installation .......................................................... 12
Room Side Replaceable Filter (RSR)........................ 12
Bench Top Replaceable Filter (BTR))........................ 12
Accessories ................................................................ 13
Aerosol Sample Static Pressure Port (ASSP) ........... 13
Optional Aerosol Injection Port (INJ)......................... 13
Filter/Motor Indicator LED (ML/FL) - PSC Units........ 14
Filter/Motor Indicator LED (ML/FL) - ECM Units ....... 18
Integrated LED Lighting (UFFU) ............................... 18
Balancing
Balancing: Technical Note: Design with VAV/Constant
Flow Boxes and Ducted Applications.......................... 19
Balancing Un-ducted Supply Units ............................. 20
Balancing Ducted Supply – Pressure Independent
and Dependent Airflow Control ................................... 21
Balancing Ducted Supply – Pressure Independent
and Dependent Airflow Control ................................... 23
Service Instructions
Pre-Filter Cleaning ...................................................... 24
Motor Change ............................................................ 25
Top Access Motor/Blower Assembly ....................... 25
Room Side Accessible Motor/Blower Assembly ...... 27
Room Side Accessible Controls.................................. 30
Troubleshooting
Troubleshooting – Changing Motor Programs ............. 33
Troublehsooting Tips................................................... 34
Replacement Parts
BTR Unit Replacement Parts ...................................... 35
RSR Unit Replacement Parts ...................................... 36
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FAN FILTER UNIT
PRODUCT OVERVIEW
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Read and Save These Instructions
Warning! To reduce the risk of fire, electrical shock, or injury to persons, observe the following:
A. Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable codes and
standards, including fire-rated construction.
B. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
C. Use this unit only in the manner intended by the manufacturer. If you have any questions, contact the manufacturer:
In the United States
2975 Shawnee Ridge Court
Suwanee, Georgia USA 30024
Ph: 770.623.8050
Fax: [phone]
In Canada / International Export Sales Office
638 Raleigh Street
Winnipeg, Manitoba Canada R2K 3Z9
Ph: 204.669.4220
Fax: [phone]
D. Disconnect the unit from the electrical power source before attempting any service. Electrical service should be performed by
a licensed electrician or authorized service technician.
E. When performing any type of maintenance on the FFU, be careful to reduce as much as possible the potential for introducing
the internals of the unit to dirt, dust, and debris that may be present in the unit's external environment.
F. To reduce the risk of injury to persons, install the unit at least 7ft above grade or in ceiling.
Before You Start
Shipping Information
Inspect all cartons and boxes for flaws and shipping damages. If anything is discovered to be damaged, contact the shipping
company and file a freight claim.
Filter Information
Ensure that all HEPA/ULPA filters are stored in a clean, dry location in a vertical position, as labeled on the carton. Do not open the
HEPA/ULPA filters until they are ready to be installed in the FFU units. All construction in the space should be complete, the site
and upstream air should be clean so as not to unnecessarily load the filter.
Ensure ductwork is balanced to scheduled flow and that both the space and ductwork is clean, free of debris, and ready for
operation prior to installation of filter. To ensure fan filter units are properly balanced, read Technical Note: Design with VAV/
Constant Flow Boxes and Ducted Applications prior to starting installation.
A minimum of two (2) people will be required to install the filters.
NOTE: Extreme caution should be taken to avoid contact with filter media. Touching filter media may result in filter failure. Damageto
filters can occur during installation or during leak qualification testing. The filters supplied by Price have been 100% tested and
certified by the manufacturer to be free of defects and leaks. Price cannot accept responsibility for damage that occurs after
shipment, whether through transit, handling or installation, and will not replace filters under Price standard warranty.
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FAN FILTER UNIT
PRODUCT OVERVIEW
Introduction
Price Fan Filter Units (FFU) are ceiling module diffusers consisting of a fan/motor assembly and Roomside Removable (RSR), or
Bench Top Replaceable (BTR) filters. The module is designed to provide unidirectional vertical airflow of filtered, clean air over a
cleanroom space.
Fan Filter Units (FFU) models will have three (3) stickers located on the back of the plenum. For ease of troubleshooting assistance,
replacement parts, and general factory assistance, it is recommended that the order number, and model line string be used as
reference. This information can be found on the Factory Label.
ETL LABEL
FACTORY LABEL
FACTORY PERFORMANCE LABEL
SPEED CONTROLLER
EYEBOLT
OPTIONAL PRE-FILTER
OPTIONAL DUCT COLLAR
MOTOR/BLOWER ASSEMBLY
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Module Installation
The Price FFU will come completely assembled from the factory with the exception of the HEPA/ULPA filters, which will ship in its
own carton, and the speed controller wall kits (if selected).
Sample line string for Room Side Replaceable filter:
FFU-1-4//I/SUPPLY/24/48//RSR/HEPA/FC/ECM/115/CF/R+TMB/FL+ML+BACnet/BFC/TC/DSW-115//ASSP///WPF/PL-AL/F-AL/
PL-B12/F-B12
Step 1: Remove FFU from shipping carton and inspect for any damage.
Step 2: If unit is Bench Top Replaceable (BTR) install the filter, refer to the filter installation section of this manual for instructions. If
unit is Room Side Replaceable (RSR), proceed directly to next step.
Sample line string for Bench Top Replaceable filter:
FFU-1-X//I/SUPPLY/24/48//BTR/HEPA/FC/ECM/115/CF/TMB//ECMSC/TC/DSW-115//ASSP///WPF/PL-AL/F-EM/PL-WM/F-EM
Step 3: Raise the unit through the ceiling grid at an angle until entire unit is above the grid
Step 4: Lower unit onto the backside of the tees.
Step 5: Secure the unit to the overhead structure using the eyebolts located on the back of the unit.
Step 6: Adjust and level the unit so that it rests on the tees and there is adequate compression on the gasket to warrant a tight
seal.
Ensure that ceiling grid is properly gasket/sealed to prevent infiltration of unfiltered air from the ceiling plenum into the room side.
Above steps are manufacturer's suggested hanging techniques, always make sure to follow all local building codes, including
seismic where applicable.
UNIT EYEBOLTS FOR MOUNTING
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Speed Controller Installation & Operation
Refer to Factory Label to determine which speed controller is on the unit and use the following tableto find the appropriate
installation instructions.
Sample line string: FFU-1-4//I/SUPPLY/24/48//RSR/HEPA/FC/ECM/115/CF/R+TMB/FL+ML+BACnet/BFC/TC/DSW-115//
ASSP///WPF/PL-AL/F-AL/PL-B12/F-B12
Speed Controller Page Reference
PSCSC/WK 4
ECMSC 5
BFC 9
PSCSC/WK
Sample line string: FFU-1-X//I/SUPPLY/24/48//RSR/HEPA/FC/PSC/115//R+TMB/FL+ML/PSC-WK/TC/DSW-115//ASSP///WPF/
PL-AL/F-AL/PL-B12/F-B12
If unit does not have the wall kit (WK) option, proceed to step 4.
Sample line string: FFU-1-X//I/SUPPLY/24/48//RSR/HEPA/FC/PSC/115//R+TMB/FL+ML/PSCSC/TC/DSW-115/PC-115/ASSP///
WPF/PL-AL/F-AL/PL-B12/F-B12
Step 1: Locate pre-installed electric box for wall-mounted speed controller.
Step 2: Wire speed controller according to wiring diagram. Wall-mounted speed controller will be wired in series with the motor.
Step 3: Attach the wall-mounted controls faceplate to the electrical box using the screws provided.
Step 4: Wire the unit according to appropriate wiring diagram. If Power Cord (PC) option is selected, simply insert plug end into
electrical socket.
Sample line string: FFU-1-X//I/SUPPLY/24/48//RSR/HEPA/FC/PSC/115//R+TMB/FL+ML/PSCSC/TC/DSW-115/PC-115/ASSP///
WPF/PL-AL/F-AL/PL-B12/F-B12
Step 5: If the unit has an RSR filter install the filter now, refer to the filter installation section of this manual for instructions.
Step 6: Ensure proper voltage is hooked up to the unit.
Step 7: Proceed to the balancing section of this manual.
NOTE: Clockwise rotation will increase airflow, counter-clockwise rotation will decrease airflow.
NOTE: If unit is ducted, refer to Technical Note: Balancing Ducted Units.
PSC SPEED CONTROLLER WITH WALL KIT OPTION
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
ECMSC
Installation
Sample line string: FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMSC// WK /DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-
AL/PL-B12/F-B12
If FFUCS-WMSC-30 was not provided, proceed to Step 4.
Step 1: Wire the unit according to appropriate wiring diagram. If Power Cord (PC) option is selected, simply insert plug end into
electrical socket.
Sample line string:
FFU-1-X//I/SUPPLY/24/48//BTR/HEPA/FC/ECM/115/CF/TMB//ECMSC/TC/DSW-115/PC-115/ASSP///WPF/PL-AL/F-EM/PL-
WM/F-EM
Step 2: If ECMSC is to be controlled using analog voltage signal from BAS (others) or Price WMSC, please remove ECMSC from
control box. Connect 0-10VDC & COMMON to BAS SIGNAL & BAS COMMON on back of ECMSC (make sure to feed wires
through grommet on control box). Re-fasten ECMSC to control box.
Step 3: If the unit has an RSR filter install the filter now, refer to the filter installation section of this manual for instructions.
Step 4: Ensure proper Voltage is hooked up to the unit.
ECMSC
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
BACnet Flow Controller (BFC)
Installation
Sample line string: FFU-1-X//I/SUPPLY/24/48//RSR/HEPA/FC/ECM/115/CF/R+TMB/BACnet/BFC/TC/DSW-115//ASSP///WPF/
PL-AL/F-AL/PL-B12/F-B12
Step 1: Wire unit according to appropriate wiring diagram. If Power Cord (PC) option is selected, simply insert plug end into
electrical socket.
NOTE: Polarity is important and must be observed. It is also vital that the 24 VAC common side of the transformer be Earth
grounded.
Step 2: Hook up applicable BACnet, and/or local Building Automation System (BAS) according to wiring diagram. Multiple units
can be daisy chained together using optional RJ45 cables. If using BAS or Local Set point, reference the airflow setpoint section
on the next page.
Step 3: Wire the unit according to the appropriate wiring diagram. If power cord option is selected, simply insert the plug end into
the electric socket.
Sample line string: FFU-1-X//I/SUPPLY/24/48//RSR/HEPA/FC/ECM/115/CF/R+TMB/BACnet/BFC/TC/DSW-115/PC-115/ASSP///
WPF/PL-AL/F-AL/PL-B12/F-B12
Step 4: If the unit has an RSR filter install the filter now, refer to the filter installation section of this manual for instructions.
Step 5: Ensure proper Voltage is hooked up to the unit.
For additional information on BACnet, and the BFC controller, refer to the BACnet Wiring Guidelines, and BFC Manual available on
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DAISY CHAINED FFU UNITS
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BACnet MS/TP to
BACnet IP Router
FFU 1 FFU 2 FFU 3
FFU 30 FFU 4
Network
Connection
IP Router
Webserver Interface
FFU 1
CFM- 312
FIlterHours - 1280
FilterStatus - Clean
ANTEROOM
FFU 2
CFM- 310
FIlterHours - 1125
FilterStatus - Clean
FFU 3
CFM- 312
FIlterHours - 1225
FilterStatus - Replace
FFU 4
CFM- 310
FIlterHours - 1300
FilterStatus - Clean
FFU 5
CFM- 312
FIlterHours - 1430
FilterStatus - Clean
FFU 6
CFM- 315
FIlterHours - 1400
FilterStatus - Replace
FFU 7
CFM- 312
FIlterHours - 1350
FilterStatus - Clean
Webserver

FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
POTENTIOMETER
(POT)
MEASURE (+) VDC MEASURE (-) VDC
Step 1: Determine test point voltage (VDC) from the formula based on the desired airflow using the appropriate chart below.
Supply - Constant Flow – Clean Filters (Forward Curved)
Voltage Velocity 24x24 24x36 24x48
Volt FPM BTR - FC RSR - FC BTR - FC RSR - FC BTR - FC RSR - FC
115 45-135 VDC = VDC = VDC = VDC = VDC = VDC =
240 45-135 VDC = VDC = VDC = VDC = VDC = VDC =
277 45-135 VDC = VDC = VDC = VDC = VDC = VDC =
Supply - Constant Torque – Clean Filters (Backwards Curved)
Voltage Velocity 24x36 24x48
Volt FPM BTR - BC RSR - BC BTR - BC RSR - BC
115 45-135 CFM + 233
449
VDC = CFM + 267
437
VDC = CFM + 226
486
VDC = CFM + 302
517
VDC =
240 45-135 CFM + 240
450
VDC = CFM + 193
393
VDC = CFM + 185
459
VDC = CFM + 313
522
VDC =
277 45-135 CFM + 233
444
VDC = CFM + 208
399
VDC = CFM + 165
448
VDC = CFM + 307
512
VDC =
CFM-71
145
CFM-50
96
CFM-45
97
CFM-48
95
CFM-39
67
CFM-39
67
CFM-31
67
CFM-78
144
CFM-76
145
CFM-35
118
CFM-39
116
CFM-31
118
CFM-91
198
CFM-88
198
CFM-85
199
CFM-72
155
CFM-64
156
CFM-63
153
Airflow Setpoint
For setting the airflow setpoint on the FFU, please locate the section for the correct controller below (either ECMSC or BFC).
ECMSC SPEED CONTROLLER
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Supply - Constant Torque – Clean Filters (Forward Curved)
Voltage Velocity 24x24 24x36 24x48
Volt FPM BTR/FC RSR/FC BTR/FC RSR/FC BTR/FC RSR/FC
115
45-90 VDC = VDC = VDC = VDC = VDC = VDC =
90-135 VDC = VDC = VDC = VDC = VDC = VDC =
240
45-90 VDC = VDC = VDC = VDC = VDC = VDC =
90-135 VDC = VDC = VDC = VDC = VDC = VDC =
277
45-90 VDC = VDC = VDC = VDC = VDC = VDC =
90-135 VDC = VDC = VDC = VDC = VDC = VDC =
Exhaust - Constant Flow – Clean Filters (Forward Curved)
Voltage Velocity 24 x 48
Volt FPM RSR - FC
115 45-135 CFM - 76
218
VDC =
240 45-135 CFM - 80
218
VDC =
277 45-135 CFM - 76
218
VDC =
Exhaust - Constant Torque – Clean Filters (Forward Curved)
Voltage Velocity 24 x 48
Volt FPM RSR - FC
115
45-90 CFM - 290
374
VDC =
90-135 CFM - 12
222
VDC =
240
45-90 CFM - 299
380
VDC =
90-135 CFM - 16
221
VDC =
277
45-90 CFM - 289
374
VDC =
90-135 CFM - 20
218
VDC =
Example: 24” x 48”, FC Wheel, 115V @ 450cfm VDC = (CFM - 72)/155
VDC = (450 - 72)/155 VDC = 2.44V
NOTE: The calculated VDC value is intended as a starting point; actual VDC value may differ slightly depending on field variables.
CFM + 179
310
CFM + 19
207
CFM + 188
292
CFM + 93
224
CFM + 156
312
CFM - 70
197
CFM + 142
338
CFM - 138
212
CFM + 155
306
CFM + 63
250
CFM + 212
367
CFM - 55
224
CFM + 20
207
CFM + 140
283
CFM + 87
220
CFM + 194
295
CFM - 81
193
CFM + 147
314
CFM - 138
212
CFM + 140
335
CFM + 35
232
CFM + 170
317
CFM - 59
223
CFM + 216
365
CFM + 174
309
CFM + 22
207
CFM + 233
322
CFM + 88
220
CFM + 177
322
CFM - 33
221
CFM + 139
336
CFM - 142
209
CFM + 195
330
CFM + 24
226
CFM + 207
363
CFM - 64
365
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Step 2: If using potentiometer/manual adjustment, rotate the potentiometer (POT/DIAL) dial on the outside of the box with a
screwdriver until the test point voltage is achieved.
NOTE: ECM Speed Controllers have 2 modes: manual adjust and BAS (Building Automation System). Standard manual control
outputs are shown below:
Measurement Tab Voltage Motor Control
0 - 1 VDC Off
1 - 4.5 VDC 0-100%
4.5 - 5 VDC 100%
The speed controller will automatically ignore the potentiometer (POT/DIAL) when a BAS signal is detected (BAS Input Signal >1).
VDC equations are for potentiometer (POT/DIAL) manual adjustment only (0-1 BAS input signal). The VDC equations are based
on a 1-5 Volt scale. The BAS input voltage is a 2-10 VDC scale, and therefore VDC calculated for a given CFM using the equation
must be doubled to achieve that CFM using the BAS input.
BAS Voltage Response Notes
0 - 1 VDC Local control mode using push buttons Local setpoint can be adjusted from 0 - 100% using push buttons
1 - 2 VDC Motor Off Recommended sending a 1.5 VDC signal to command motor off
2 - 10 VDC Modulating Control 2 - 10 VDC modulates motor in accordance with VDC equations
Example: If using a BAS signal, to calculate appropriate starting voltage, first calculate the VDC (as shown in above example)
VDC = 2.44 V
Then double this value
BAS Input Voltage = VDC*2
BAS Input Voltage = 2.44*2
BAS Input Voltage = 4.88V
Step 3: Wait a few seconds for the ECM motor to adjust its speed and then verify fan airflow with measurements at the unit face
using a flow hood. Adjust the POT/DIAL, or BAS input signal to reach desired airflow as required.
Step 4: Proceed to balancing section of this manual.
SPEED CONTROLLER ADJUSTMENT
POTENTIOMETER/
DIAL ADJUST
GREEN STATUS LED
MUST BE BLINKING.
(CODE 1 THRU 4)
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Airflow Setpoint BFC
Step 1: Determine if BFC will be controlled using local control, BAS analog voltage signal, or BACnet. The control mode can be
confirmed by observing the cycling status readout on the LCD.
NOTE: The control hierarchy is BACnet > BAS > Local. The control mode is based on the highest level of control provided.
Step 2: For Local or BACnet control, determine the setpoint from the appropriate airflow formula for your model in the tables below.
If BFC is being controlled by BAS analog voltage signal, refer to "ECMSC Airflow Setpoint" section for proper input voltage (Note
this will be 2X the VDC value shown in the tables).
Set-point (ECM%) ranges from 0% - 100%
Supply - Constant Flow – Clean Filters (Forward Curved)
Voltage Velocity 24x24 24x36
Volt FPM BTR - FC RSR - FC BTR - FC RSR - FC
115 45-135 ECM% = (CFM/3.35) - 44 ECM% = (CFM/2.33) - 46 ECM% = (CFM/5.03) - 44 ECM% = (CFM/4.13) - 38
240 45-135 ECM% = (CFM/3.38) - 42 ECM% = (CFM/2.33) - 46 ECM% = (CFM/5.06) - 44 ECM% = (CFM/4.06) - 39
277 45-135 ECM% = (CFM/3.31) - 43 ECM% = (CFM/2.35) - 42 ECM% = (CFM/5.08) - 43 ECM% = (CFM/4.12) - 37
Voltage Velocity 24x48
Volt FPM BTR - FC RSR - FC
115 45-135 ECM% = (CFM/6.94) - 42 ECM% = (CFM/5.42) - 42
240 45-135 ECM% = (CFM/6.91) - 42 ECM% = (CFM/5.45) - 41
277 45-135 ECM% = (CFM/6.97) - 41 ECM% = (CFM/5.37) - 41
Supply - Constant Torque – Clean Filters (Backwards Curved)
Voltage Velocity 24x36 24x48
Volt FPM BTR - BC RSR - BC BTR - BC RSR - BC
115 45-135 ECM% = (CFM/15.74) - 14 ECM% = (CFM/15.29) - 12 ECM% = (CFM/17.03) - 16 ECM% = (CFM/18.1) - 12
240 45-135 ECM% = (CFM/15.78) - 14 ECM% = (CFM/13.76) - 15 ECM% = (CFM/16.09) - 18 ECM% = (CFM/18.28) - 12
277 45-135 ECM% = (CFM/15.56) - 14 ECM% = (CFM/13.99) - 14 ECM% = (CFM/15.68) - 19 ECM% = (CFM/17.92) - 12
Supply - Constant Torque – Clean Filters (Forward Curved)
Voltage Velocity 24x24 24x36
Volt FPM BTR/FC RSR/FC BTR/FC RSR/FC
115 45-90 ECM% = (CFM/10.87) - 13 ECM% = (CFM/10.23) - 11 ECM% = (CFM/10.93) - 15 ECM% = (CFM/10.73) - 15
90-135 ECM% = (CFM/7.26) - 26 ECM% = (CFM/7.72) - 18 ECM% = (CFM/6.78) - 41 ECM% = (CFM/8.12) - 25
240 45-90 ECM% = (CFM/10.82) - 13 ECM% = (CFM/11.28) - 8 ECM% = (CFM/11.3) - 13 ECM% = (CFM/11.58) - 12
90-135 ECM% = (CFM/7.27) - 26 ECM% = (CFM/7.84) - 17 ECM% = (CFM/6.92) - 39 ECM% = (CFM/8.75) - 22
277 45-90 ECM% = (CFM/9.93) - 15 ECM% = (CFM/10.32) - 10 ECM% = (CFM/11.02) - 16 ECM% = (CFM/11.12) - 14
90-135 ECM% = (CFM/7.26) - 26 ECM% = (CFM/7.71) - 18 ECM% = (CFM/7.74) - 33 ECM% = (CFM/7.92) - 26
Voltage Velocity 24x48
Volt FPM BTR/FC RSR/FC
115 45-90 ECM% = (CFM/11.84) - 17 ECM% = (CFM/12.86) - 13
90-135 ECM% = (CFM/7.43) - 48 ECM% = (CFM/7.82) - 37
240 45-90 ECM% = (CFM/11.78) - 17 ECM% = (CFM/12.72) - 13
90-135 ECM% = (CFM/7.42) - 48 ECM% = (CFM/7.86) - 36
277 45-90 ECM% = (CFM/11.74) - 17 ECM% = (CFM/12.79) - 12
90-135 ECM% = (CFM/7.33) - 49 ECM% = (CFM/7.67) - 38
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Step 2: For local control, adjust at the speed controller using the up and down arrows. For BACnet control, adjust point "AO3 -
ECM Setpoint" on Front End System.
Step 3: For BAS analog voltage control, ensure correct voltage is applied to AI1 & COM based on the VDC equations provided in
the tables. Also refer to table below for BAS control responses.
BAS Voltage Response Notes
0 - 1 VDC Local control mode using push buttons Local setpoint can be adjusted from 0 - 100% using push buttons
1 - 2 VDC Motor Off Recommended sending a 1.5 VDC signal to command motor off
2 - 10 VDC Modulating Control 2 - 10 VDC modulates motor in accordance with VDC equations
The VDC equations are based on a 1-5 Volt scale. The BAS input voltage is a 2-10 VDC scale, and therefore VDC calculated for a
given CFM using the equations must be doubled to achieve that CFM using the BAS input.
NOTE: The calculated ECM setpoint is a starting point; actual value may differ slightly depending on field variables.
NOTE: The BAS signal will override the local setpoint using a remote 0 – 10 VDC signal. If the BAS signal drops below 1 VDC local
control (via the up/down buttons) is restored.
Step 4: Wait a few seconds for the ECM motor to adjust its speed and then verify fan airflow with measurements at the supply
outlets using a flow hood. Adjust voltage to reach desired airflow as required.
Step 5: Proceed to Balancing section of this manual.
Exhaust - Constant Flow – Clean Filters (Forward Curved)
Voltage Velocity 24 x 48
Volt FPM RSR - FC
115 45-135 ECM% = (CFM/7.63) - 18
240 45-135 ECM% = (CFM/7.63) - 18
277 45-135 ECM% = (CFM/7.53) - 18
Exhaust - Constant Torque – Clean Filters (Forward Curved)
Voltage Velocity 24 x 48
Volt FPM RSR - FC
115
45-90 ECM% = (CFM/13.09) - 6
90-135 ECM% = (CFM/7.77) - 30
240
45-90 ECM% = (CFM/13.3) - 6
90-135 ECM% = (CFM/7.74) - 30
277
45-90 ECM% = (CFM/13.09) - 6
90-135 ECM% = (CFM/7.63) - 31
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Filter Installation
Room Side Replaceable Filter (RSR)
Sample line string: FFU-1-X//I/SUPPLY/24/48//RSR/HEPA/FC/ECM/115/CF/R+TMB/BACnet/BFC/TC/DSW-115//ASSP///WPF/
PL-AL/F-AL/PL-B12/F-B12
Please refer to the FTR Room-side Replaceable Filter (RSR) Quick Start Guide.
Bench Top Replaceable Filter (BTR)
Sample line string: FFU-1-1//I/24/48/BTR/FC/ECM/115/10//CF//HEPA//BFC////DSW-115//PC-115//TMB/ASSP///
FL+ML+BACnet/// WPFH/PL-AL///PL-B12/
Please refer to the FTR Room-side Replaceable Filter (BTR) Quick Start Guide.
RSR
BTR
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
AEROSOL
INJECTION PORT
(INJ)
KNIFE EDGE
AEROSOL SAMPLE
STATIC PRESSURE
PORT (ASSP)
DIFFUSER
FACE FRAME
Accessories
Aerosol Sample Static Pressure Port (ASSP)
Sample line string: FFU-1-X//I/SUPPLY/24/48//RSR/HEPA/FC/ECM/115/CF/R+TMB/BACnet/BFC/TC/DSW-115/PC-115/ASSP/
INJ//WPF/PL-AL/F-AL/PL-B12/F-B12
Every FFU from Price is supplied with an aerosol sample/static pressure port.
The ASSP is a ¼” port used for measuring plenum static pressure as well as sampling aerosol concentrations above the filter.
On the FFU with BTR filter there are two ports on the center strip of the filter than can function as the ASSP, however if the LED
indicator option has been selected, one port will be used for the LED installation.
Optional Aerosol Injection Port (INJ)
Sample line string: FFU-1-X//I/SUPPLY/24/48//RSR/HEPA/FC/ECM/115/CF/R+TMB/BACnet/BFC/TC/DSW-115/PC-115/ASSP/
INJ//WPF/PL-AL/F-AL/PL-B12/F-B12
The FFU with RSR filter can be ordered with an optional aerosol injection port for easier commissioning.
The INJ is a 3/8” Female NPT port, used to inject aerosol above the filter for aerosol testing.
For instructions on use of the ASSP and INJ, please refer to the INJ Aerosol Injection Port User Manual.
ASSP ON BTR UNIT ASSP & INJ RSR UNIT
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Filter/Motor Indicator LED (ML/FL) - PSC Units
Sample line string: FFU-1-X/I/SUPPLY/24/48//RSR/HEPA/FC/PSC/115//R+TMB/FL+ML/PSC-WK/TC/DSW-115//ASSP///WPF/
PL-AL/F-AL/PL-B12/F-B12
LED Installation (BTR Units only)
Step 1: Take LED cable assembly out of FFU-1-X Plenum.
Step 2: Remove well nut in center port of BTR filter.
CABLE ASSEMBLY STATIC PRESSURE PORT
Step 3: Remove threaded standoff and lock washer from LED cable assembly.
Step 4: Thread cable through static pressure port on face of BTR filter.
NOTE: It is recommended to rest the filter frame on 2x4 lumber to protect the LED light from breaking.
THREADED STANDOFF
LOCK WASHER
RUBBER WASHER
METAL WASHER
LED
LED THREADED STANDOFF FILTER POSITION FOR LED INSTALLATION
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Step 5: Put lock washer and threaded standoff back on cable and tighten to LED.
BTR FACE INSTALLED LED THREADED STANDOFF THROUGH FILTER CHANNEL
Step 6: With two (2) people holding the unit, pull cable back through plenum until plenum can rest on top of filter.
Step 7: Install the filter, refer to the filter installation section of this manual.
Step 8: Refer to wiring diagram (located in control box) to connect LED leads to terminal block.
NOTE: If unit has BFC speed controller, LED leads will need to be connected to the BFC controller instead of the terminal block.
CABLE ASSEMBLY
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
LED Operation
Option Code LED
Color Action Notes
Filter LED FL
Green None Indicates normal operation until filter pressure drop exceeds
calibrated pressure drop (factory set at 1.5x clean filter pressure).
Yellow Change Filter Indicates filter pressure drop has exceeded calbirated setting (factory
set at 1.5x clean filter pressure.
Motor
LED ML
Green None Indicates normal motor operation when the static pressure is above
0.1" w.g.
Red Troubleshoot Motor Indicates motor is not in operation, and that unit static pressure is
below 0.1" w.g.
Calibration
Filter LED will come factory set to activate at the pressure drops listed in the Table below.
Pressure @ 90fpm [in w.g.] 1.5x Clean Filter [in w.g.]
0.4 0.6
If different set points are desired, they can be adjusted as follows:
Step 1: Remove Loctite from adjustment screw hole.
PRESSURE SWITCH ADJUSTMENT SCREW
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FAN FILTER UNIT
INSTALLATION INSTRUCTIONS
Step 2: Calculate number of turns required based on difference between factory set point and desired set point using the following
chart.
Example:
HEPA filter with desired set point of 0.9 in w.g.
Number of turns at 0.9 in w.g. = 4
Number of turns at factory set point of 0.6 in w.g. = 2.2
Number of turns to field set = 4 – 2.2 = 1.8 (approximately)
NOTE: Maximum available pressure setting is 1.0” w.g. Do not exceed 4 ½ turns (total).
Step 3: Turn screw clockwise the number of turns calculated above. You will need a 1.5mm hex Allen wrench
Step 4: To check filter pressure set point and/or to fine tune, insert Magnehelic gauge into the static pressure port (located along
knife edge of diffuser – diffuser face must be removed to access).
Step 5: Using an obstruction (piece of cardboard or equivalent), slowly increasing pressure on the unit by blocking off more and
more of the diffuser face until the LED turns from green to yellow.
Step 6: Take pressure measurement at point the LED changed color and rotate the adjustment screw until desired pressure set
point is reached.
Set Point in Inches w.g.
Turns of Set Point Adjustment Screw
(from starting point at 0.25” w.g.)
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
Table 2. Set Point Adjustment
Turns of Set Point Adjustment Screw
(from starting point at 0.25” w.g.)
Set Point in inches w.g.
0 1 2 3 4 5
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.00
0 1 2 3 4 5
RSR FILTER LED SET POINT ADJUSTMENT
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FAN FILTER UNIT
SERVICE INSTRUCTIONS
Filter/Motor Indicator LED (ML/FL) - ECM Units
Sample line string: FFU-1-X/I/SUPPLY/24/48//RSR/HEPA/FC/ECM/115//R+TMB/FL+ML+BACnet/BFC/TC/DSW-115//ASSP///
WPF/PL-AL/F-AL/PL-B12/F-B12
LED Operation
LED Color Unit Status* Action Notes
Green Normal None Indicates normal operation until pressure drop exceeds calibrated pressure
drop (factory set a 1.5x clean filter pressure).
Yellow Ftr Loaded Change or calibrate
filter
Indicates filter pressure drop has exceeded calibrated setting (factory set at
1.5x the clean filter pressure).
Red Off Adjust setpoint / check
control mode
Indicates motor setpoint is 0%. If alternate setpoint is expected please
check control mode.
Blinking Red Low Pressure Troubleshoot motor
Indicates unit pressure is below 0.1 in. w.g. and motor setpoint is above
0%. Please contact Applications (criticalenvironments@priceindustries.
com).
*Unit status is shown on BFC LCD screen or as BACnet point: "MV1 - Unit Status"
Integrated LED Lighting (UFFU)
For details on installation and wiring please refer to the URDC Ultra Remote Driver Cabinet Manual on priceindustries.com.
UFFU
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