Price FFU-HE Series User manual

MANUAL – INSTALLATION & SERVICE
Fan Filter Unit - High Efficiency
FFU-HE Series
v200 –Issue Date: 02/19/16
© 2016 Price Industries Limited. All rights reserved.

FAN FILTER UNIT - HIGH EFFICIENCY
TABLE OF CONTENTS
Product overview
Read & save these instructions .................................... 1
Before you start ............................................................ 2
introduction .................................................................. 3
Installation & service instructions
Diffuser Module Installation ........................................... 4
Speed Controllers......................................................... 7
- PSCSC Speed Controller Installation & Operation...... 7
- ECMSC/WK Speed Controller Installation &
Operation ................................................................. 9
- ECMDx/WK Speed Controller Installation &
Operation ................................................................ 13
- BACnet Flow Controller (BFC) Installation &
Operation ................................................................ 16
Optional Accessories
- ATS ......................................................................... 19
Unit Filter Installation ................................................... 21
- Room Side Replaceable Filter (RSR......................... 21
- Bench Top Replaceable Filter (BTR.......................... 23
Filter/Motor Indicator LED (ML/FL) - RSR................... 25
Filter/Motor Indicator LED (FL/ML) - BTR ................... 27
Motor/Filter Indicator BAS (MBAS/FBAS..................... 31
Service: Cleaning of Pre-Filter ..................................... 32
Service: Removal and Replacement of RSR Filter ....... 33
Service: Removal and Replacement of BTR Filters...... 34
Service: Changing Motors in the Field......................... 35
- Top Access Motor/Blower Assembly ....................... 35
- Room Side accessible Motor/Blower Assembly....... 37
Technical Note: Static Pressure Ports ......................... 41
- Room Side Replaceable (RSR) Port......................... 41
- Bench Top Replaceable (BTR) Port.......................... 42
Technical Note: Design with VAV/Constant Flow Boxes
and Ducted Applications............................................. 43
Technical Note: Balancing Ducted Units...................... 44
Troubleshooting Tips................................................... 45
BTR............................................................................ 46
RSR............................................................................ 47
FFU-HE Ordering Procedure....................................... 49
Warranty..................................................................... 61
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

FAN FILTER UNIT - HIGH EFFICIENCY
PRODUCT OVERVIEW
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. Before servicing or cleaning unit, switch power off at service panel and lock service panel to prevent power from being
switched on accidentally.
E. To reduce the risk of injury to persons, install the unit at least 7ft above grade or in ceiling.
1
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

FAN FILTER UNIT - HIGH EFFICIENCY
PRODUCT OVERVIEW
Before You Start
Inspect all cartons and boxes for flaws and shipping damage.
If anything is discovered to be damaged, contact the shipping company and file a freight claim.
Ensure that all HEPA/ULPA filters are stored in a clean, dry location in a vertical position, as labeled on the carton.
NOTE: Extreme caution should be taken to avoid contact with filter media. Touching filter media may result in filter failure. Damage
to 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 our standard warranty.
If units are to be ducted, read Technical Note: Design with VAV/Constant Flow Boxes and Ducted Applications, and
Technical Note: Balancing Ducted Units prior to starting installation.
A minimum of two (2) people will be required to install the filters.
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual
2priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com

Introduction
Price Fan Filter Units (FFU-HE) are ceiling module diffusers consisting of a fan/motor assembly and room-side (RSR), or bench-
top (BTR) removable filters. The module is designed to provide unidirectional vertical airflow of filtered, clean air over a cleanroom
space.
Fan Filter Units (FFU-HE) models will have a total of 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 available for reference. This information can be found on the Factory Label.
Engineering Request No:
(yyyy/mm/dd)
Initials
Completion dateFactory order no OperatorSch datePart qty
Sheet
of
Revision
Description
Drawing no.DateStatus
Drawn by Scale
Comment/TagIssued date Blank qty
LABEL
FFU
ETL LABEL
045451
C13
Solid Edge
C
Revised ETL Logo and
manufacturing addresses.
Added sheets 2 and 3. 140596 2014/12/04 GH
B 082870 2008/12/24 LP
A 071119 2007/06/19 LP
Rev Description ECN Date (y/m/d) By

002 UL 1995
001 UL 507
DASH # DESCRIPTION

Winnipeg, MB CANADA
9801655
CONFORMS TO UL STD. 507
CERTIFIED TO CSA STD. C22.2 NO.113
SERIALMODEL
H.P. VOLTS/PH/CYC
x
Manufactured By
®
AMPS
MAX OVERCURRENT PROT. (MOP)
MIN CIRCUIT AMPACITY (MCA)
045451-001 REV C
R.P.M.
MOTOR THERMALLY
PROTECTED
TESTED TO 1.2" w.g. MAX
OPERATING STATIC PRESSURE
INSTALL FAN AT LEAST 7 FT. ABOVE THE FLOOR
AVERTISSEMENT: COUPER LES SOURCES
POWER SUPPLIES BEFORE SERVICING.
WARNING: DISCONNECT ALL REMOTE ELECTRIC
D'ALIMENTATION À DISTANCE AVANT LE DÉPANNAGE.
CONFORMS TO UL STD. 1995
CERTIFIED TO CSA STD. C22.2 NO.236
SERIALMODEL
H.P. VOLTS/PH/CYC
x
Manufactured By
®
AMPS
MAX OVERCURRENT PROT. (MOP)
MIN CIRCUIT AMPACITY (MCA)
Winnipeg, MB CANADA
9801655
045451-002 REV C
R.P.M.
MOTOR THERMALLY
PROTECTED
TESTED TO 1.2" w.g. MAX
OPERATING STATIC PRESSURE
INSTALL FAN AT LEAST 7 FT. ABOVE THE FLOOR
AVERTISSEMENT: COUPER LES SOURCES
POWER SUPPLIES BEFORE SERVICING.
WARNING: DISCONNECT ALL REMOTE ELECTRIC
D'ALIMENTATION À DISTANCE AVANT LE DÉPANNAGE.
NOTES:
1. MATERIAL: 3M #7883 FOIL ROLL STOCK FOR COMPUTER FEED.
2. COLOR: MATTE SILVER WITH BLACK LETTERING.
3. ADHESIVE: PRESSURE SENSITIVE TYPE "300".
4. VENDOR: BY CERTIFIED LABEL MANUFACTURER.
5. DATA PRINTED IN BY PRICE.
6. UL STD. 507: ELECTRIC FANS
LISTING REPORT #: 3116139COQ-002
UL STD. 1995: HEATING AND COOLING EQUIPMENT
LISTING REPORT #: 3090127COQ-001
*ALL LABEL INFORMATION MUST BE TYPED OR PRINTED.
-001 UL 507 LABEL -002 UL 1995 LABEL
MB
2002/04/29
1:1
FAN FILTER UNIT - HIGH EFFICIENCY
PRODUCT OVERVIEW
ETL LABEL
FACTORY LABEL
FACTORY PERFORMANCE LABEL
SPEED CONTROLLER
EYEBOLT
OPTIONAL PRE-FILTER
OPTIONAL DUCT COLLAR
MOTOR/BLOWER ASSEMBLY
3
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manualpriceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
Diffuser Module Installation
The Price FFU-HE will come completely assembled from the factory with the exception of the HEPA/ULPA filters, will ship in its
own carton, and the speed controller wall kits (if selected).
NOTE: Do not open and/or install the HEPA/ULPA filters (RSR models only) prior to the full installation of the FFU-HE units. All
construction in the space should be complete, and the site and upstream air should be clean so as not to unnecessarily load the
filter.
Sample line string for Room Side Replaceable filter: FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMDX//WK/DSW/PC/
TMB//ML/FL/WPF/PL-AL///PL-MILL//
STEP 1: Remove FFU from shipping carton and inspect for any damage.
NOTE: Ensure the HEPA/ULPA filter has been safely stored in a vertical position, per carton label, until ready for use.
STEP 2: If unit is Bench Top Replaceable (BTR) refer to page 23 for filter installation prior to proceeding. If unit is Room Side
Replaceable (RSR), proceed directly to next step.
Sample line string for Bench Top Replaceable filter: FFU-HE/24/48/BTR/BC/ECM/115/10//CT//HEPA//ECMDX//WK/DSW/PC/
TMB///ML/FL/WPF/PL-AL///PL-MILL//
Unit Unpacking
4priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
STEP 3: Raise the unit through ceiling grid at an angle until entire unit is above the ceiling 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 gasketed/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
5
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

STEP 7: Refer to Factory Label to determine which speed controller is on the unit and use the following table for appropriate
reference page for the particular speed controller on your unit.
Sample line string for speed controller: FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMDX//WK/DSW/PC/TMB//ML/FL/
WPF/PL-AL///PL-MILL//
Speed Controller Page Reference
PSCSC/WK 7
ECMSC/WK 9
ECMDX/WK 13
BFC 16
NOTE: Depending on unit ordered, speed controller will be mounted on the unit itself, or, if a wall-kit option was selected, shipped
loose for field installation.
FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
6priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
Speed Controllers
PSCSC/WK Speed Controller Installation and Operation
Sample line string below:
FFU-HE/24/48/RSR/BC/PSC/115/10//NP//HEPA//PSCSC//WK/DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-AL/PL-B12/F-B12
If unit does not have the wall kit (WK) option, proceed to step 13a.
Sample line string below:
FFU-HE/24/48/RSR/BC/PSC/115/10//NP//HEPA//PSCSC///DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-AL/PL-B12/F-B12
STEP 8A: Locate pre-installed electric box for wall-mounted speed controller.
STEP 9A: Wire speed controller according to wiring diagram found on page 57. Wall-mounted speed controller will be wired in
series with the motor.
NOTE: Wiring should be carried out by a certified electrician and meet national and local electrical codes.
STEP 10A: Attach the wall-mounted controls faceplate to the electrical box using the screws provided.
STEP 11A: 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 below: FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMSC///DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-
AL/PL-B12/F-B12
NOTE: Wiring should be carried out by a certified electrician and meet national and local electrical codes.
STEP 12A: If using RSR filter, refer to page 21 for installation instructions.
NOTE: Ensure that the space is clean, free of debris, and that ducts are cleaned and ready for operation prior to installation of filter.
STEP 13A: Ensure proper Voltage is hooked up, and turn unit on.
STEP 14A: Using a flow hood to determine airflow, adjust speed control switch until desired airflow is achieved.
NOTE: Clockwise rotation will increase airflow, counter-clockwise rotation will decrease airflow.
PSC Speed Controller with Wall Kit Option
7
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

NOTE: If unit is ducted, refer to Technical Note: Balancing Ducted Units on page 44 of this manual.
FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
Speed Controller Adjustment
8priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com

ECMSC/WK Speed Controller Installation and Operation
Sample line string below:
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 unit does not have the wall kit (WK) option, proceed to step 13b.
Sample line string below:
FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMSC// /DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-AL/PL-B12/F-B12
STEP 8B: Locate pre-installed electrical box for wall-mounted speed controller.
STEP 9B: Wire speed controller according to wiring diagram found on page 58 and 59. Motor speed controller will have color
coded wires and must be wired to the matching colors on the wall-mounted portion.
NOTE: Wiring should be carried out by a certified electrician and meet national and local electrical codes.
STEP 10B: Attach the wall-mounted controls faceplate to the electrical box using the screws provided.
STEP 11B: 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 below: FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMSC///DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-
AL/PL-B12/F-B12
NOTE: Wiring should be carried out by a certified electrician and meet national and local electrical codes.
STEP 12B: If using RSR filter, refer to page 21 for installation instructions.
NOTE: Ensure that the space is clean, free of debris, and that ducts are cleaned and ready for operation prior to installation of filter
NOTE: Prior to turning on unit, ensure that the proper voltage is hooked up to the unit.
STEP 13B: Ensure proper Voltage is hooked up, and turn unit on.
STEP 14B: Attach a standard multimeter on a DC voltage setting to the positive and negative terminals (measurement tabs) on
speed controller, located on the back of the unit (see arrows below for connection points).
FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
ECMSC/WK
9
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

STEP 13B: Determine test point voltage (VDC) from the formula based on the desired airflow using the appropriate chart below.
BTR Filters with FC Wheel
24"x24" FFU-HE
Voltage Equation
115 VDC = (CFM+170)/169
240 VDC = (CFM+157)/159
277 VDC = (CFM+146)/166
24"x36" FFU-HE
Voltage Equation
115 VDC = (CFM+292)/244
240 VDC = (CFM+229)/231
277 VDC = (CFM+200)/222
24"x48" FFU-HE
Voltage Equation
115 VDC = (CFM+201)/250
240 VDC = (CFM+204)/252
277 VDC = (CFM+238)/262
RSR Filters with FC Wheel
24"x24" FFU-HE
Voltage Equation
115 VDC = (CFM+104)/100
240 VDC = CFM+104)/100
277 VDC = (CFM+74)/98
24"x36" FFU-HE
Voltage Equation
115 VDC = (CFM+179)/178
240 VDC = (CFM+179)/179
277 VDC = (CFM+172)/172
24"x48" FFU-HE
Voltage Equation
115 VDC = (CFM+235)/237
240 VDC = (CFM+255)/241
277 VDC = (CFM+219)/234
FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
POTENTIOMETER
(POT)
MEASURE (+) VDC MEASURE (-) VDC
ECMSC Speed Controller
VDC Equations
10 priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
Example: 24”x48”, FC Wheel, 115V @ 450cfm
VDC = (CFM + 201)/250
VDC = (450+201)/250
VDC = 2.60V
The potentiometer (POT/DIAL) would need to be turned up until the voltage measured 2.60 at the Measurement Tabs
NOTE: The calculated VDC value is intended as a starting point; actual VDC value may differ slightly depending on field variables.
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)/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 - 9 VDC Modulating Control 2 - 9 VDC modulates motor from 0 - 100%
9 - 10 VDC Maximum Speed Motor is running at maximum speed (100%)
STEP 14B: 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.
EXAMPLE: If using a BAS signal, to calculate appropriate starting voltage, first calculate the VDC (as shown in above example)
VDC = 2.60 V
Then double this value
BAS Input Voltage = VDC*2
BAS Input Voltage = 2.60*2
BAS Input Voltage = 5.20
11
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
STEP 15B: 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.
NOTE: If unit is ducted, please refer to Technical Note: Balancing Ducted Units on page 44 of this manual.
POTENTIOMETER/
DIAL ADJUST
GREEN STATUS LED
MUST BE BLINKING.
(CODE 1 THRU 4)
Speed Controller Adjustment
12 priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
ECMDX/WK Speed Controller Installation and Operation
Sample line string below:
FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMDX// WK /DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-AL/PL-B12/F-B12
If unit does not have the wall kit (WK) option, proceed to step 11c.
NOTE: Sample line string below:
1//FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMDX// /DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-AL/PL-B12/F-B12
STEP 8C: Locate pre-existing electrical box for wall-mounted speed controller.
NOTE: Wall kit must be mounted horizontally, as shown above.
STEP 9C: Wire unit according to wiring diagram found on page 58 and 60. Motor speed controller will have color coded wires and
must be wired to the matching colors on the wall-mounted portion.
NOTE: 24VAC and COMMON will need to be run from the terminal block in the control box to the terminals listed 24VAC HOT, and
COMMON on the wall-mounted portion.
NOTE: Wiring should be carried out by a certified electrician and meet national and local electrical codes.
ECMDX Wall Kit Speed Controller
ECMDX Speed Controller
13
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
STEP 10C: Attach the wall-mounted controls faceplate to the electrical box using the screws provided.
STEP 11C: Wire the unit according to appropriate wiring diagram. Refer to table below for reference page number. If Power Cord
(PC) option is selected, simply insert plug end into electrical socket.
Sample line string below: FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMSC///DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-
AL/PL-B12/F-B12
NOTE: Wiring should be carried out by a certified electrician and meet national and local electrical codes.
STEP 12C: If using RSR filter, refer to page 21 for installation instructions.
NOTE: Ensure that the space is clean, free of debris, and that ducts are cleaned and ready for operation prior to installation of filter
STEP 13C: Wire unit according to wiring diagram found on page 58 and 60.
STEP 14C: Ensure proper Voltage is hooked up, and turn unit on.
NOTE: ECMDX Speed Controllers have multiple modes, which are listed below:
Display Mode Range
L.SEt Local Setpoint – Manual speed adjust mode (use UP / DOWN to adjust) 0 - 100%
rPn
RPM – Shows current RPM of motor 1
If E001 – no RPM pulses are being read, check 6 position cable
If E002 – RPM reading is above 2000 RPM, check primary air
0 - 2500 RPM
bAS.r BAS Remote – BAS Mode – Voltage signal (Max reading is 9.99 VDC) 0 - 9.99 VDC
bAS.S BAS Setpoint – Current BAS setpoint 0 - 100%
STEP 15C: Determine Local Setpoint from the formula based on the desired airflow using the appropriate chart below.
14 priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
BTR Filters with FC Wheel
24"x24" FFU-HE
Voltage Equation
115 L. Set = (CFM/5.90)
240 L. Set = (CFM/5.58)
277 L. Set = (CFM/5.81) - 4
24"x36" FFU-HE
Voltage Equation
115 L. Set = (CFM/8.54) + 6
240 L. Set = (CFM/8.07)
277 L. Set = (CFM/7.75) - 3
24"x48" FFU-HE
Voltage Equation
115 L. Set = (CFM/8.77) - 6
240 L. Set = (CFM/8.82) - 5
277 L. Set = (CFM/9.16) - 1
RSR Filters with FC Wheel
24"x24" FFU-HE
Voltage Equation
115 L. Set =(CFM/3.52) + 1
240 L. Set = (CFM/3.49) + 1
277 L. Set = (CFM/3.41) - 7
24"x36" FFU-HE
Voltage Equation
115 L. Set = (CFM/6.23)
240 L. Set = (CFM/6.27)
277 L. Set = (CFM/6.03)
24"x48" FFU-HE
Voltage Equation
115 L. Set = (CFM/8.30)
240 L. Set = (CFM/8.43) + 2
277 L. Set = (CFM/8.20) - 2
STEP 16C: If manually adjusting at the speed controller ensure controller is in Local Setpoint mode (L.SEt). To change modes,
press the up and down arrows simultaneously until you reach L.SEt.
STEP 17C: Enter the Local Setpoint value (L. Set) you have found from the chart by using the up/down buttons.
NOTE: The L.Set calculated above 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.
The ECMDX speed controller can be controlled using multiple strategies; these are outlined in the chart below.
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 - 9 VDC Modulating Control 2 - 9 VDC modulates motor from 0 - 100%
9 - 10 VDC Maximum Speed Motor is running at maximum speed (100%)
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 (refer to ECM speed controller on page 10) must be doubled to achieve that CFM using the BAS
input.
STEP 18C: 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.
NOTE: If unit is ducted, please refer to Technical Note: Balancing Ducted Units on page 44 of this manual.
15
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
BACnet Flow Controller (BFC) Installation and Operation
Sample line string below:
FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//BFC///DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-AL/PL-B12/F-B12
STEP 8D: Wire unit according to wiring diagram found on page 59 and 60.
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 9D: Hook up applicable BACnet, and/or local Building Automation System (BAS) according to wiring diagram found on
page 59 and 60. 'For multiple units, use provided able to daisy chain units together. If using BAS or Local Setpoint, skip to step
14D (formerly 12G) for applicable reference instructions.
Create render of FFU-HE's daisy chained together and insert after this step
NOTE: For additional information on BACnet, and the BFC controller, refer to the BACnet Wiring Guidelines, and BFC Manual
which are available on the Price website (priceindustries.com).
STEP 10D: Wire the unit according to appropriate wiring diagram. Refer to table below for reference page number. If Power Cord
(PC) option is selected, simply insert plug end into electrical socket.
Sample line string below: FFU-HE/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMSC///DSW/PC/TMB/ATS/ML/FL/WPF/PL-AL/F-
AL/PL-B12/F-B12
NOTE: Wiring should be carried out by a certified electrician and meet national and local electrical codes.
STEP 11D: If using RSR filter, refer to page 21 for installation instructions.
NOTE: Ensure that the space is clean, free of debris, and that ducts are cleaned and ready for operation prior to installation of filter
STEP 12D: Ensure proper Voltage is hooked up, and turn unit on.
STEP 13D: Configure BACnet addressing (if applicable).
STEP 14D: Using the desired method of control (local, BAS, or BACnet) set unit airflow.
• Local Setpoint:
- Refer to page 15 for the ECMDX Speed Controller instructions for calculating Local Setpoint value.
- Hold down ‘Enter/Menu’ button for 5 seconds, display will show ‘Passcode”. Use the ‘Up’ and ‘Down’ arrow keys to
enter this sequence: Down, Up, Up, Down.
- Use ‘Up’ and ‘Down’ arrow keys to manually enter Local Setpoint value; numbers will be displayed on LCD screen.
• BAS:
- Refer to page 10 for the ECM Speed Controller instructions for calculating VDC.
• BACnet:
- Log into Building Management System, or Price supplied BFC-FE front end.
- Calculate Local Setpoint value using the equations on page 15 from the ECMDX instructions.
- Write this value into ECM Setpoint BACnet point.
16 priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
STEP 15D: Check airflow using flow hood and adjust ECM Setpoint as required until desired airflow is reached.
NOTE: Before proceeding to next step, ensure unit is operating at desired airflow. Any changes to the airflow will require the filter
status to be reset.
STEP 16D: To calibrate clean filter pressure drop, scroll, scroll through the ‘Service Menus’ until reaching ‘Filter’, select this menu
by pressing the ‘Enter/Menu’ button (far right).
STEP 17D: Scroll through the ‘Filter’ menu until reaching ‘Reset Filter’ select by pressing the ‘Enter/Menu’ button.
Price FFU-HE-FE Points List
17
priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - Manual

FAN FILTER UNIT - HIGH EFFICIENCY
INSTALLATION & SERVICE INSTRUCTIONS
NOTE: Make sure the area directly beneath and around the unit is clear of any personnel or equipment as this can affect the reading
of the clean filter static pressure.
STEP 18D: Press the ‘Enter/Menu’ button to confirm reset of filter; this will begin calibration. This will take approximately 2 minutes
After filter calibration is complete, LCD will display: ‘RESET COMPLETED’.
NOTE: If unit is ducted, please refer to Technical Note: Balancing Ducted Units on page 44 of this manual.
Calibration Screen
Filter Reset Screen
18 priceindustries.com | FAN FILTER UNIT - HIGH EFFICIENCY - ManualFAN FILTER UNIT - HIGH EFFICIENCY - Manual | priceindustries.com