Mitsubishi Electric FBM Series User manual

MANUFACTURED FOR:
MITSUBISHI ELECTRIC US, INC.
Filter Boxes
FBM-Series
For use with: PEFY / PEAD Indoor Units
INSTALLATION MANUAL FOR INSTALLER
For safe and correct use, please read this installation manual thoroughly before installing
these component.

Table of Contents
1. Inspect Shipment .................................................................................................................... 5
2. Safety Precautions .................................................................................................................. 6
3. Specifications ......................................................................................................................... 8
3.1. FBM Series .................................................................................................................. 8
4. For ease in installation, the filter box should be attached before the indoor unit is mounted .......... 9
5. Converting the filter box from rear (as supplied) to bottom return ............................................... 10
FBM-Series
Specifications are subject to change without notice. 3 © 2019 Mitsubishi Electric US, Inc.

4

1. Inspect Shipment
Upon receipt of equipment, carefully inspect it for possible damage. Take special care to examine the unit if
the carton is damaged. If damage is found, it should be noted on the carrier’s freight bill. Damage claims
should be filed with the carrier immediately. Claims of shortages should be filed with the seller within 5
days.
FBM-Series
Specifications are subject to change without notice. 5 © 2019 Mitsubishi Electric US, Inc.

2. Safety Precautions
• Before installing the unit, make sure you read all the “Safety precautions”.
• The “Safety precautions” provide very important points regarding safety. Make sure you follow them.
Symbols used in the text
WARNING
Describes precautions that should be observed to prevent danger of injury or death to the
user.
CAUTION
Describes precautions that should be observed to prevent damage to the unit.
WARNING
• Do not install it by yourself (customer). Ask dealer or authorized company to install the
accessory.
• Incomplete installation could cause injury.
• When you notice exceptionally abnormal noise or vibration, stop operation and contact
your dealer.
CAUTION
• Use proper safety equipment for the Installation work.
• Tighten all screws as specified in the instructions. Over tightening screws can cause
damage to parts.
• Not following properly installation instructions may result in air flow not passing through
the filters, causing poor performance and other problems.
• Do not place polyethylene bags in reach of young children. Putting them over the head
will block breathing passages, which could result in suffocation.
FBM-Series
© 2019 Mitsubishi Electric US, Inc. 6 Specifications are subject to change without notice.

DISPOSING OF THE UNIT
When you need to dispose of the unit or filters, consult your dealer, to dispose in accordance with local laws
and regulations
FBM-Series
Specifications are subject to change without notice. 7 © 2019 Mitsubishi Electric US, Inc.

3. Specifications
3.1. FBM Series
Filter Box Model
Used with Filter Box Dimensions Filter(s) Included
CITY MULTI®P-SERIES Height Width Depth 14" x 14"
x 2"
14"x 20" x
2"
14" x 25"
x 2"
FBM2-1-A PEFY-P06, P08, P12NMAU-E* -- 10" 27-5/8" 13" 1
FBM2-2-A PEFY-P15,
P18NMAU-E*
PEAD-A09, A12,
A15, 18AA*
10" 35-1/2" 13" 1 1
FBM2-3-A PEFY-P24, P27, P30NMAU-E* PEAD-A24, 30AA* 10" 43-3/8" 13" 2
FBM2-4-A PEFY-P36,
P48NMAU-E*
PEAD-A36, 42AA* 10" 55-1/8" 13" 1 2
FBM2-5-A PEFY-P54NMAU-E* -- 10" 63" 13" 3
* All models (for PEFY: E, E2, etc. ; for PEAD: AA4, AA5, AA7, etc.)
FBM-Series
© 2019 Mitsubishi Electric US, Inc. 8 Specifications are subject to change without notice.

4. For ease in installation, the filter box should be
attached before the indoor unit is mounted
1. Remove the filter from the back of the indoor unit and dispose of it properly in accordance with local
laws and regulations.
2. Open the filter box door and remove the filter(s). Remove the metal spacer by unscrewing it from above
and below, them remove it, or slide it aside to avoid interferences.
3. Position the indoor unit and filter box as shown below, matching the top of the filter box to the top of the
indoor unit.
4. With the screws included, secure the filter box to the indoor unit. Inserting the end screws first will line
up the rest of the holes.
5. Once the remaining screws are set, reinstall the metal spacer securing it to the filter box. Skipping this
step may result in air flow miss passing through the filters, causing a poor performance of the filter box.
6. Reinstall the filter(s) making sure the airflow direction is correct.
7. Reinstall the filter box door and mark the installation date on the label.
8. The indoor unit is now ready to be mounted.
Useof
Filterper
Modeltype
78
6
Air flow direction in filter(s).
From Duct Flanges to
Back of Filter Box.
Metal
Spacer
Screw the
metal spacer here
Screw the
metal spacer here
5
* NOTE: In this view some parts were removed to
see the location of the Metal Spacer.
34
screws first
Install these end
All screws included
(4X10mm)
Useof
Filterper
Modeltype
12
Filter Box up,
label facing up
• When you notice exceptionally abnormal noise or vibration,
stop operation and contact your dealer.
Warning
• Use proper safety equipment for the Installation work.
• Tighten all screws as specified in the instructions.
- Over tightening screws can cause damage to parts.
• Not following properly installation instructions may result
in air flow not passing through the filters, causing poor
performance and other problems.
Caution
FBM-Series
Specifications are subject to change without notice. 9 © 2019 Mitsubishi Electric US, Inc.

5. Converting the filter box from rear (as supplied) to
bottom return
1. Remove rear duct flanges and bottom plate.
2. Install duct flanges on the bottom of the filter box.
3. Install the bottom plate on the rear of the filter box.
Useof
Filterper
Modeltype
Useof
Filterper
Modeltype
Useof
Filterper
Modeltype
1
23
Rear Return
(standard)
Bottom Plate
Duct flanges
Inlet flow
Inlet flow
Bottom Return
• When you notice exceptionally abnormal noise or vibration,
stop operation and contact your dealer.
Warning
• Use proper safety equipment for the Installation work.
• Tighten all screws as specified in the instructions.
- Over tightening screws can cause damage to parts.
• Not following properly installation instructions may result
in air flow not passing through the filters, causing poor
performance and other problems.
Caution
FBM-Series
© 2019 Mitsubishi Electric US, Inc. 10 Specifications are subject to change without notice.

11

This product is designed and intended for use in the residential, commercial and light-
industrial environment.
Please be sure to put the contact address/telephone number on this manual before
handing it to the customer.
Manufactured for:
MITSUBISHI ELECTRIC US, INC.
www.mitsubishielectric-usa.com
Toll Free: 800-433-4822
MEUS DOC# MD-1825-K002 ver.1 September 2019
PA79C911H01
Specifications are subject to change without notice. © 2019 Mitsubishi Electric US, Inc.