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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 =

240

45-135

VDC =

277

45-135

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

CFM-45

CFM-48

CFM-39

CFM-31

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

priceindustries.com | FAN FILTER UNIT - Manual

Summary of Contents for FFU series

Page 2: ...ter 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...

Page 3: ...ve 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...

Page 4: ...om 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 recommen...

Page 5: ...r 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...

Page 6: ...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...

Page 7: ...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 ECMS...

Page 8: ...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 i...

Page 9: ...ved 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...

Page 10: ...lt 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 C...

Page 11: ...ust 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 Mot...

Page 12: ...35 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 11...

Page 13: ...ubled 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 l...

Page 14: ...SSP 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...

Page 15: ...R 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 Option...

Page 16: ...tep 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 pressu...

Page 17: ...l 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 b...

Page 18: ...sure 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 belo...

Page 19: ...tic 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 bl...

Page 20: ...as 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 con...

Page 21: ...r slightly negative In ducted applications it is critical that primary air be balanced prior to installing the FFU The primary air controls should be locked in position post balancing and the FFU is i...

Page 22: ...n on FFU and set to desired airflow See Airflow Setpoint section to determine initial setpoint Step 3 Measure airflow using flow hood and compare against scheduled flow Adjust speed controller as nece...

Page 23: ...3 Ensure each supply air duct is balanced to scheduled airflow and matches FFU set point Step 4 Turn off primary air source Step 5 Install FFU into ceiling connect ductwork Step 6 Turn all FFUs on en...

Page 24: ...flow hood Step 7 Using the table below adjust FFU controller or upstream airflow device as required Repeat steps 4 6 until desired airflow and inlet pressure 0 0 0 05 w g is achieved FFU Airflow FFU I...

Page 25: ...to Step 2 Step 2 Set FFU to desired airflow See Airflow Setpoint section to determine initial setpoint Step 3 Confirm airflow using flow hood and adjust speed controller as required Step 4 Power up t...

Page 26: ...der the brackets non ducted or remove filter access door ducted Reference the below figures for further details Step 3 Clean pre filter by hand washing in water with a mild detergent or by using a vac...

Page 27: ...the top of the unit by removing adjacent ceiling or access panel Step 2 Remove filter by pushing filter to one side and sliding it out from under the brackets non ducted or remove the duct collar pre...

Page 28: ...ts to free the motor blower assembly using a 7 16 socket wrench or equivalent Step 6 Remove motor blower assembly Step 7 Inspect and or replace parts Step 8 Replace with the new motor blower assembly...

Page 29: ...uld be performed by a licensed electrician or authorized service technician STEP 1 Remove diffuser perforated face by turning quarter turn fasteners holding face in place NOTE Safety cables will be at...

Page 30: ...wrench or equivalent NOTE A 7 16 ratchet with extension is recommended for ease of access for unfastening 2X2 FORWARD CURVED BLOWER HOUSING NUTS LOCATED ON TOP OF BLOWER HOUSING 2X3 AND 2X4 BACKWARD C...

Page 31: ...or to control box Step 10 Remove motor blower assembly Step 11 Inspect and or replace parts Step 12 Replace with the new motor blower assembly and reassemble by reversing the above steps Step 13 Doubl...

Page 32: ...uarter turn fasteners holding face in place NOTE Safety cables will be attached to the diffuser face but care should be taken to ensure that diffuser face does not swing and injure anyone Step 2 Remov...

Page 33: ...if the filter is to be reinstalled Touch the filter by the frame only never touch the filter media as it can damage the filter If your unit is 24 x 48 or 24 x 36 skip to Step 8 Step 5 Remove the 2 nu...

Page 34: ...with BC option remove the housing to access the control lid Step 9 Remove the control lid from the inside of the plenum using a 7 16 socket wrench for access to the control box STEP 10 Reverse the pr...

Page 35: ...nt flow to constant torque all that is required is to open the connection of the white wire as shown Switching from constant torque to constant flow To switch the motor from constant torque to constan...

Page 36: ...duct the Low Air Velocity procedure outlined above 4 Conduct smoke and photometer test on HEPA ULPA filter Seal or replace Motor Keeps Shutting Off 1 Check if unit is ducted 2 If no contact Price at c...

Page 37: ...ble ECM Speed Control 2ft 019186 001 ECM Power Cable 1 Power Cable Harness 115V 019187 003 Power Cable Harness 208V 240V 277V 019187 004 ECM Wall Controller 1 FFUCS WMSC 30 Transformer Quantity Descri...

Page 38: ...ntroller Cable 1 Cable ECM Speed Control 2ft 019186 001 ECM Power Cable 1 Power Cable Harness 115V 019187 003 Power Cable Harness 208V 240V 277V 019187 004 ECM Wall Controller 1 FFUCS WMSC 30 Transfor...

Page 39: ...37 FAN FILTER UNITS NOTES priceindustries com FAN FILTER UNIT Manual priceindustries com FAN FILTER UNIT Manual...

Page 40: ...38 FAN FILTER UNITS NOTES FAN FILTER UNIT Manual priceindustries com...

Page 41: ...39 FAN FILTER UNITS NOTES priceindustries com FAN FILTER UNIT Manual...

Page 42: ...s document contains the most current product information as of this printing For the most up to date product information please go to priceindustries com 2020 Price Industries Limited All rights reser...

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