Trane P0V0 Installer's Manual

Installer’s Guide

Modular Blowers – No Heat

P0V0A000M30SCA
P0V0B000M40SCA
P0V0C000M50SCA
P0V0D000M50SCA

The P0V0 series modular blower is designed for installation
in a closet, utility room, alcove, basement, crawlspace or
attic. These versatile units are applicable to air conditioning
and heat pump applications. Several models are available
to meet the specific requirements of the outdoor
equipment.

SSAAFFEETTYY WWAARRNNIINNGG

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.

November 2021

1188--GGEE2200DD11--11EE--EENN

SAFETY SECTION
MODULAR BLOWERS

IImmppoorrttaanntt:: This document contains a wiring diagram,

a parts list, and service information. This is
customer property and is to remain with
this unit. Please return to service
information pack upon completion of work.

IImmppoorrttaanntt:: These instructions do not cover all

variations in systems nor provide for every
possible contingency to be met in
connection with the installation. Should
further information be desired or should
particular problems arise which are not
covered sufficiently for the purchaser’s
purposes, the matter should be referred to
your installing dealer or local distributor.

WWAARRNNIINNGG

HHAAZZAARRDDOOUUSS VVOOLLTTAAGGEE!!

FFaaiilluurree ttoo ffoollllooww tthhiiss WWaarrnniinngg ccoouulldd rreessuulltt iinn
pprrooppeerrttyy ddaammaaggee,, sseevveerree ppeerrssoonnaall iinnjjuurryy,, oorr
ddeeaatthh..
DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee
ddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerr
lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr
ccaannnnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd..

CCAAUUTTIIOONN

GGRROOUUNNDDIINNGG RREEQQUUIIRREEDD!!

FFaaiilluurree ttoo iinnssppeecctt oorr uussee pprrooppeerr sseerrvviiccee ttoooollss mmaayy
rreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee oorr ppeerrssoonnaall iinnjjuurryy..
RReeccoonnnneecctt aallll ggrroouunnddiinngg ddeevviicceess.. AAllll ppaarrttss ooff tthhiiss
pprroodduucctt tthhaatt aarree ccaappaabbllee ooff ccoonndduuccttiinngg eelleeccttrriiccaall
ccuurrrreenntt aarree ggrroouunnddeedd.. IIff ggrroouunnddiinngg wwiirreess,, ssccrreewwss,,
ssttrraappss,, cclliippss,, nnuuttss,, oorr wwaasshheerrss uusseedd ttoo ccoommpplleettee aa
ppaatthh ttoo ggrroouunndd aarree rreemmoovveedd ffoorr sseerrvviiccee,, tthheeyy mmuusstt
bbee rreettuurrnneedd ttoo tthheeiirr oorriiggiinnaall ppoossiittiioonn aanndd pprrooppeerrllyy
ffaasstteenneedd..

WWAARRNNIINNGG

LLIIVVEE EELLEECCTTRRIICCAALL CCOOMMPPOONNEENNTTSS!!

FFaaiilluurree ttoo ffoollllooww tthhiiss WWaarrnniinngg ccoouulldd rreessuulltt iinn
pprrooppeerrttyy ddaammaaggee,, sseevveerree ppeerrssoonnaall iinnjjuurryy,, oorr
ddeeaatthh..
FFoollllooww aallll eelleeccttrriiccaall ssaaffeettyy pprreeccaauuttiioonnss wwhheenn
eexxppoosseedd ttoo lliivvee eelleeccttrriiccaall ccoommppoonneennttss.. IItt mmaayy bbee
nneecceessssaarryy ttoo wwoorrkk wwiitthh lliivvee eelleeccttrriiccaall ccoommppoonneennttss
dduurriinngg iinnssttaallllaattiioonn,, tteessttiinngg,, sseerrvviicciinngg,, aanndd
ttrroouubblleesshhoooottiinngg ooff tthhiiss pprroodduucctt..

CCAAUUTTIIOONN

IIMMPPRROOPPEERR VVOOLLTTAAGGEE CCOONNNNEECCTTIIOONN!!

FFaaiilluurree ttoo ffoollllooww tthhiiss CCaauuttiioonn ccoouulldd rreessuulltt iinn
pprrooppeerrttyy ddaammaaggee..
DDoo NNOOTT ccoonnnneecctt tthhee mmoodduullaarr bblloowweerr lliinnee vvoollttaaggee
ttoo aa GGFFCCII pprrootteecctteedd cciirrccuuiitt..

CCAAUUTTIIOONN

SSHHAARRPP EEDDGGEE HHAAZZAARRDD!!

FFaaiilluurree ttoo ffoollllooww tthhiiss CCaauuttiioonn ccoouulldd rreessuulltt iinn
pprrooppeerrttyy ddaammaaggee oorr ppeerrssoonnaall iinnjjuurryy..
BBee ccaarreeffuull ooff sshhaarrpp eeddggeess oonn eeqquuiippmmeenntt oorr aannyy
ccuuttss mmaaddee oonn sshheeeett mmeettaall wwhhiillee iinnssttaalllliinngg oorr
sseerrvviicciinngg..

CCAAUUTTIIOONN

HHAAZZAARRDDOOUUSS VVAAPPOORRSS!!

FFaaiilluurree ttoo ffoollllooww tthhiiss ccaauuttiioonn ccoouulldd rreessuulltt iinn
pprrooppeerrttyy ddaammaaggee oorr ppeerrssoonnaall iinnjjuurryy..
EEqquuiippmmeenntt ccoorrrroossiioonn ddaammaaggee.. TToo pprreevveenntt
sshhoorrtteenniinngg iittss sseerrvviiccee lliiffee,, tthhee mmoodduullaarr bblloowweerr
sshhoouulldd nnoott bbee uusseedd dduurriinngg tthhee ffiinniisshhiinngg pphhaasseess ooff
ccoonnssttrruuccttiioonn oorr rreemmooddeelliinngg.. TThhee llooww rreettuurrnn aaiirr
tteemmppeerraattuurreess ccaann lleeaadd ttoo tthhee ffoorrmmaattiioonn ooff
ccoonnddeennssaattee.. CCoonnddeennssaattee iinn tthhee pprreesseennccee ooff
cchhlloorriiddeess aanndd fflluuoorriiddeess ffrroomm ppaaiinntt,, vvaarrnniisshh,, ssttaaiinnss,,
aaddhheessiivveess,, cclleeaanniinngg ccoommppoouunnddss,, aanndd cceemmeenntt
ccrreeaatteess aa ccoorrrroossiivvee ccoonnddiittiioonn wwhhiicchh mmaayy ccaauussee
rraappiidd ddeetteerriioorraattiioonn ooff tthhee ccaabbiinneett aanndd iinntteerrnnaall
ccoommppoonneennttss..

WWAARRNNIINNGG

SSAAFFEETTYY HHAAZZAARRDD!!

TThhiiss aapppplliiaannccee iiss nnoott ttoo bbee uusseedd bbyy ppeerrssoonnss
((iinncclluuddiinngg cchhiillddrreenn)) wwiitthh rreedduucceedd pphhyyssiiccaall,,
sseennssoorryy,, oorr mmeennttaall ccaappaabbiilliittiieess,, oorr llaacckk ooff
eexxppeerriieennccee aanndd kknnoowwlleeddggee,, uunnlleessss tthheeyy hhaavvee bbeeeenn
ggiivveenn ssuuppeerrvviissiioonn oorr iinnssttrruuccttiioonn..

WWAARRNNIINNGG

SSAAFFEETTYY HHAAZZAARRDD!!

CChhiillddrreenn sshhoouulldd bbee ssuuppeerrvviisseedd ttoo eennssuurree tthhaatt tthheeyy
ddoo nnoott ppllaayy wwiitthh tthhee aapppplliiaannccee..

©2021

18-GE20D1-1E-EN

SSAAFFEETTYY SSEECCTTIIOONN MMOODDUULLAARR BBLLOOWWEERRSS

WWAARRNNIINNGG

WWAARRNNIINNGG!!

TThhiiss pprroodduucctt ccaann eexxppoossee yyoouu ttoo cchheemmiiccaallss
iinncclluuddiinngg lleeaadd,, wwhhiicchh aarree kknnoowwnn ttoo tthhee SSttaattee ooff
CCaalliiffoorrnniiaa ttoo ccaauussee ccaanncceerr aanndd bbiirrtthh ddeeffeeccttss oorr
ootthheerr rreepprroodduuccttiivvee hhaarrmm.. FFoorr mmoorree iinnffoorrmmaattiioonn ggoo
ttoo wwwwww..PP6655WWaarrnniinnggss..ccaa..ggoovv..

IImmppoorrttaanntt:: Installation of this unit shall be made in

accordance with the National Electric Code,
NFPA No. 90A and 90B, and any other local
codes or utilities requirements.

NNoottee:: The modular blowers have been evaluated in

accordance with Intertek / ETL UL1995:2011 Ed.4
“SUITABLE FOR MOBILE HOME USE.”

NNoottee:: The manufacturer recommends installing ONLY

A.H.R.I approved, matched indoor and outdoor
systems. Some of the benefits of installing
approved matched indoor and outdoor split
systems are maximum efficiency, optimum
performance, and the best overall system
reliability.

18-GE20D1-1E-EN

3

Table of Contents

Features and Accessories. . . . . . . . . . . . . . . . .. . 5

Location and Clearances. . . .. . . . . . . . . . . . . . . . 6

Installation Instructions. . . . . . . . . . . . .. . . . . . . . 7

Outline Drawings . . . . . . . . . . . . . . .. . . . . . . . . . . . 9

General Installation. . . . . . .. . . . . . . . . . . . . . . . . 13

Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Horizontal Installation in an Attic or

Crawlspace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Duct Connections. . . . . . . . . . . . . . . . . . . . . . . . 14

Return Air Filters . . . . . . . . . . . . . . . . . . . . . . . . 23

Electrical Connections . . . . . . . . . . . . . . . . . . . 25

Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 25

Integrated Modular Blower Control

Menu . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . . . 27

Integrated Modular Blower Control

(IMBC) Display Codes . . . . . . . . . . .. . . . . . . . . . 30

Fault Code Recovery . . . . . . . . . . . . . . . . . . . . . 31

Sequence of Operation . . . . . . . . . . . . . . . .. . . . 32

Checkout Procedures . . . . . . . . . . .. . . . . . . . . . . 34

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Features and Accessories

Table 1. Standard Features

• MULTI-POSITION UPFLOW, DOWNFLOW, HORIZONTAL LEFT
AND HORIZONTAL RIGHT

• PAINTED FINISH ON GALVANIZED STEEL EXTERIOR WITH
FULLY INSULATED CABINET THAT MEETS 4.0 R VALUE.
BLOWER COMPARTMENT INSULATION IS ONLY INSTALLED
IN B, C AND D SIZE PRODUCTS AND HAS A 2.1 R VALUE

• 120 VAC OPERATION

• VARIABLE SPEED DIRECT DRIVE BLOWER

• SIDE AND BOTTOM RETURN

• MEETS THE MINIMUM LEAKAGE REQUIREMENTS FOR THE
FLORIDA AND CALIFORNIA BUILDING CODES

Table 2. Accessories

Model Number Description Use with

BAYHANG Horizontal Hanging Kit All modular blowers

BAYLIFTB Dual Return Kit (B size extension) B Cabinet modular blowers

BAYLIFTC Dual Return Kit (C size extension) C Cabinet modular blowers

BAYLIFTD Dual Return Kit (D size extension) D Cabinet modular blowers

BAYFLTR206

BAYSF1165AA

BAYSF1255BA 1” SlimFit Filter and Insulated Frame All modular blowers when used in side return

FLRSF1255 1” Filter replacement (Qty 12) BAYSF1255BA

BAYFLTR203 Horizontal Filter Kit B Cabinet modular blowers in Downflow/

BAYFLTR204 Horizontal Filter Kit C Cabinet modular blowers in Downflow/

BAYFLTR205 Horizontal Filter Kit D Cabinet modular blowers in Downflow/

(a)

Airflow greater than 1600 CFM requires dual returns

(a)

Filter Access Door Kit (Downflow only) All modular blowers in Downflow orientation

1” SlimFit Box with MERV 4 Filter All modular blowers

application
B Cabinet modular blowers only when in
bottom return application

Horizontal

Horizontal

Horizontal

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5

Location and Clearances

MODU

LAR BLOW

ER

O

”

21”

O

”

Minimum clearance to combustible materials

6

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Installation Instructions

1. UUnnppaacckkiinngg

Carefully unpack the unit and inspect the contents
for damage. If any damage is found at the time of
delivery, proper notification and claims should be
made with the carrier.

Check the rating plate to assure model number and
voltage match with what you ordered. The
manufacturer should be notified within 5 days of
any discrepancy or parts shortage.

2. LLooccaattiioonn

The modular blower should be centrally located
and may be installed in a closet, alcove, utility
room, basement, crawl space or attic. Minimum
clearances must be met.

When the unit is installed in a closet or utility room,
the room should be large enough, and have an
opening to allow replacement of the unit. All
servicing is done from the front and a clearance of
21" is needed for service unless the closet door
aligns with the front of the modular blower.

If you are installing the unit in an unconditioned
space such as an attic or crawl space, you must
ensure that the area provides sufficient air
circulation to prevent moisture collection on the
cabinet during high dew point conditions.

3. DDuucctt WWoorrkk

The duct work should be installed in accordance
with the NFPA No. 90A "Installation of Air
Conditioning and Ventilating systems" and No. 90B
"Residential Type Warm Air Heating and Air
Conditioning Installation."

The duct work should be insulated in accordance
with the applicable requirements for the particular
installation as required by HUD, FHA, VA the
applicable building code, local utility or other
governing body.

4. BBlloowweerr

This unit is supplied with a variable speed motor
with a direct drive blower wheel which can obtain
various air flows. The unit is shipped with factory
set cooling and heating air flows. Airflow
performance tables are available for additional air
flows. Be sure to check the air flow and the
temperature drop across the evaporator coil to
ensure sufficient air flow.

5. WWiirriinngg

Consult all schematic and pictorial wiring diagrams
of this unit and the outdoor equipment to
determine compatibility of wiring connections and
to determine specific requirements.

All field wiring to the modular blower should be
installed in accordance with the latest edition of the
National Electric Code NFPA No. 70 and any local
codes. Check rating plates on unit for rated volts,
minimum circuit ampacity and maximum over
current protection. Supply circuit power wiring
must be 75 degree C (167 degree F) minimum
copper conductors only. Copper supply wires shall
be sized to the National Electric Code or local code
requirements, whichever is more stringent.

The unit is shipped wired for 120 Volt AC 60 HZ 1
Phase Operation (Ensure unit is properly
grounded). Do Not use GFCI plug.

Class 2 low voltage control wiring should not be run
in conduit with power wiring and must be
separated from power wiring unless class 1 wire
with proper voltage rating is used.

Low voltage control wiring should be 18 AWG,
color coded (105 degree C minimum). For lengths
longer than 100ft., 16 AWG wire should be used.
Make certain that separation of control wiring and
power wiring has been maintained.

6. AAiirr FFiilltteerr

To protect the coil, blower and other internal parts
from excessive dirt and dust an air filter must be
installed before air enters the evaporator coil. A
remote filter must be installed. Consult the filter
manufacturer for proper sizing and maximum
velocity requirements.

7. TThheerrmmoossttaatt

Select a thermostat that is commonly used with HP
or AC two stage or Variable speed Heating/Cooling
outdoor unit. The thermostat will energize the fan
on a demand for heat or cool.

Install the thermostat on an inside wall, away from
drafts, lights or other heat sources in a location that
has sufficient air circulation from other rooms being
controlled by the thermostat.

18-GE20D1-1E-EN

7

IInnssttaallllaattiioonn IInnssttrruuccttiioonnss

8. OOppeerraattiioonnaall aanndd CChheecckkoouutt PPrroocceedduurreess

To obtain proper performance, all units must be
operated and charge adjustments made in
accordance with procedures found in the Service
Facts document of the outdoor unit. After
installation has been completed, it is recommended
that the entire system be checked against the
checkout list located at the back of this document.
See

“Checkout Procedures,” p. 34.

9. MMaaiinntteennaannccee

The system air filter(s) should be inspected, cleaned
or replaced at least monthly. Make certain that the
access panels are replaced and secured properly
before placing the unit back in operation. This
product is designed for dependable service;
however, periodic maintenance should be
scheduled and conducted by trained professional
service personnel. This service should be
conducted at least annually, and should include
testing and inspection of electrical components.
The blower motor is permanently lubricated for
normal operating conditions.

8

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Outline Drawings

Table 3. 14.5” Width Cabinet

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9

OOuuttlliinnee DDrraawwiinnggss

Table 4. 17.5” Width Cabinet

10

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Table 5. 21” Width Cabinet

OOuuttlliinnee DDrraawwiinnggss

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11

OOuuttlliinnee DDrraawwiinnggss

Table 6. 24.5” Width Cabinet

12

18-GE20D1-1E-EN

General Installation

Tinnerman clip locations
(if needed)

Shipping bracket

WHEN SUSPENDING THE HORIZONTAL
MODULAR BLOWER, IT SHOULD BE
SUSPENDED BY ATTACHING TO THE
CABINET IN THE PLACES SHOWN.

WHEN SUPPORTING THE
MODULAR BLOWER FROM
BELOW, SUPPORT FRONT
TO BACK (AS SHOWN)
OR SIDE TO SIDE.

The following sections give general instructions for the
installation of the modular blowers.

Panel Removal

Note: For the P0V0, a 1/4" nut driver is required to remove the two

screws at the top of the front panel. The front panel can then be
removed by lifting upwards.

Note: Tinnerman clips are provided in the doc pack if the door panel

flange hole(s) becomes stripped.

Note: Remove shipping bracket before installation.

Horizontal Installation in an Attic
or Crawlspace

The modular blower may be installed in an attic or
crawl space in the horizontal position by placing it on
its left or right side (as viewed from the front in the
vertical position). The horizontal installation in an attic
should be on a service platform large enough to allow
for proper clearances on all sides and service access to
the front of the modular blower. See

Clearances,” p. 6

between lines formed by intersections of the top and
two sides of the modular blower casing and building
joists, studs, or framing.

The modular blower may be placed horizontally in a
crawl space on a pad or other noncombustible
material. Place blocks underneath to support the
modular blower and raise the unit for sufficient
protection from moisture.

18-GE20D1-1E-EN

“Location and

. Line contact is only permissible

The modular blower may be installed hanging in a
hanging position using straps. The modular blower
should be supported at both ends and have an
additional support in the center of the modular blower
in back.

13

GGeenneerraall IInnssttaallllaattiioonn

Duct Connections

Table 7. Supply Duct Connections

Upflow Modular Blower with Coil

1. Bend modular blower flanges up.

2. Set the coil on top of the modular blower.

3. Screw through the coil cabinet into the modular blower flange.
Guide holes are located on the coil.

Note: There are no longer guide holes located on the modular blower

flange.

4. Seal per local codes and requirements.

Modular Blower in Horizontal Left with Coil

1. Bend modular blower flanges up.

2. Support the modular blower and coil independently.

3. Screw through the coil cabinet into the modular blower flange.
Guide holes are located on the coil.

Note: There are no longer guide holes located on the modular blower

flange.

4. Seal per local codes and requirements.

14

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Modular Blower in Horizontal Right with “A” Coil

1. Bend modular blower flanges down.

2. Support the modular blower and coil independently.

3. Match the coil up flush to the back of the modular blower.

4. Seal per local codes and requirements.

Note: Flat or dedicated horizontal coils may require flanges to be bent

upward.

GGeenneerraall IInnssttaallllaattiioonn

Downflow Modular Blower with Coil

1. Bend modular blower flanges down.

2. Set the modular blower on top of the coil so that it is flush with the
back of the modular blower.

3. Seal per local codes and requirements.

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15

GGeenneerraall IInnssttaallllaattiioonn

Horizontal Right and Downflow Modular Blower — no Coil

1. Bend modular blower flanges up.

2. Attach ducting.

3. Seal per local codes and requirements.

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Table 8. Return Duct Connections

FILTER

Return Ducting General Guidelines

• Back returns are not allowed on any S-Series Modular blowers

• Side returns are not allowed on downflow or horizontal S-Series
Modular blowers

• Mounting flanges must be located on ducting

• Shoot screws through the mount flanges into the modular blower
cabinet

• Always seal per local codes and requirements

• Modular blower, coil, and ducting must be supported separately

• An external overflow drain pan must be installed in all applications
over a finished ceiling to prevent property damage

Upflow Modular Blower with Bottom Return in Closet with
Remote Filter

1. Remove the bottom plate.

2. Set the modular blower on the base inside closet.

3. Install remote filter.

4. Seal per local codes and requirements.

GGeenneerraall IInnssttaallllaattiioonn

Upflow Modular Blower with Bottom Return in Closet with
Filter Box

1. Remove the bottom plate.

2. Set the modular blower on the filter box inside closet.

3. Must have grille present for air.

4. Seal per local codes and requirements.

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17

FILTER

GGeenneerraall IInnssttaallllaattiioonn

Table 8. Return Duct Connections (continued)

Upflow Modular Blower with Bottom Return Mounted on a
Ducted Pedestal

1. Remove the bottom plate.

2. Set the modular blower on the ducted pedestal. The ducted
pedestal will use ducted air from a remote location.

3. Install filter at a remote location.

4. Seal per local codes and requirements.

Upflow Modular Blower with Bottom Return Mounted on a
Ducted Pedestal with Filter Box

1. Remove the bottom plate.

2. Set the modular blower on the filter box. The ducted pedestal will
use ducted air from a remote location.

3. Seal per local codes and requirements.

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Table 8. Return Duct Connections (continued)

FILTER

No Cut Area Cutouts

21” Filter Cabinet with BAYLIFT Kit shown

Flush with back

of furnace cabinet

Upflow Modular Blower with Bottom and Side Returns
Mounted on a Ducted Pedestal with Side Return and Filter Box

Important: Make sure the thermostat wiring hole is sealed on the

cabinet side with the side return.

Important: Make sure not to cut the cabinet in the “No Cut” area.

Important: Remove Blower Assembly and Panel Loop before cutting

cabinet to avoid cutting wires.

1. Remove the bottom plate.

2. Create ducting and set the modular blower in place.

Note: Use Optional BAYLIFT kit to lift modular blower. Follow kit

instructions.

Note: The modular blower bottom pedestal must be a minimum of 6”

in height.

3. Match the filter cabinet flush to the back and bottom sides of the
modular blower cabinet and secure in place with screws.

4. Mark the two areas to be cut out for the return air.

5. Cut out the two sections of the cabinet and BAYLIFT kit to be
removed.

6. Attach ducting to the filter box.

7. The ducted pedestal will use ducted air from a remote location.

8. Seal per local codes and requirements.

GGeenneerraall IInnssttaallllaattiioonn

Cabinet cutout when used with BAYLIFT

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19

Use four corner guides
to create cutout

No Cut Area

Use four corner guides
to create cutout

No Cut Area

GGeenneerraall IInnssttaallllaattiioonn

Table 8. Return Duct Connections (continued)

Upflow Modular Blower with Side Return

Important: Make sure the thermostat wiring hole is sealed on the

Important: Make sure not to cut the cabinet in the “No Cut” area.

Important: Remove Blower Assembly and Panel Loop before cutting

1. Using guides, remove the cutout for the side return.

2. Create ducting and set the modular blower in place. Use screws to

Note: If using a filter box, use a transition, if possible, to attach the

3. Seal bottom panel per local codes and requirements.

4. Seal all other panels per local codes and requirements.

cabinet side with the side return.

cabinet to avoid cutting wires.

attach ducting to the modular blower cabinet.

filter box to the modular blower cabinet.

Upflow Modular Blower with Two Side Returns

Important: One of the sides must have a transition to allow the

Important: If a transition is not a viable option, a hole will need to be

Important: Make sure not to cut the cabinet in the “No Cut” area.

Important: Remove Blower Assembly and Panel Loop before cutting

Note: If using one transition, the thermostat wiring will exit on the

1. Using guides, remove the two cutouts for the side returns.

2. Create ducting and set the modular blower in place. Use screws to

Note: If using a filter boxes, use transitions, if possible, to attach the

3. Seal bottom panel per local codes and requirements.

4. Seal all other panels per local codes and requirements.

thermostat wiring to exit the cabinet.

drilled in the side of the cabinet for the thermostat wiring
to exit.

cabinet to avoid cutting wires.

transition side.

attach ducting to the modular blower cabinet.

filter boxes to the modular blower cabinet.

20

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Table 8. Return Duct Connections (continued)

Downflow Modular Blower with Top Return

1. Remove the top plate.

2. Attach the ducting to the top of the modular blower.

3. Install remote filter.

4. Seal per local codes and requirements.

GGeenneerraall IInnssttaallllaattiioonn

Downflow Modular Blower with Top Return and Plenum

1. Remove the top plate.

2. Attach the plenum ducting to the top of the modular blower.

3. Install remote filter.

4. Seal per local codes and requirements.

18-GE20D1-1E-EN

21

FILTER

GGeenneerraall IInnssttaallllaattiioonn

Table 8. Return Duct Connections (continued)

Downflow Modular Blower with Top Return and Plenum with
Filter Box

1. Remove the top plate.

2. Attach the filter box to the top of the modular blower.

3. Attach ducting.

4. Seal per local codes and requirements.

22

18-GE20D1-1E-EN

Return Air Filters

*

*

*

*

UPFLOW MODULAR BLOWERS ONLY

LOCATING
NOTCHES
PROVIDED
FOR SIDE
RETURN
CUTOUT

* SEE OUTLINE DRAWING

FRONT OF
MODULAR BLOWER

TYPICAL AIR FILTER INSTALLATIONS

Filters are not factory supplied for modular blowers. Filter size needed
will be dependent on type of filter and CFM requirement. Filters must
be installed externally to the unit.

Important: It is recommended to transition return ducting to the

same size as the opening. It is acceptable for return duct
or filter frame to extend forward of the opening but
plastic plugs MUST be installed in any opening that the
duct or filter frame may cover.

Preparation for Upflow Bottom and Side Return Air Filter
Installations

All return air duct systems should provide for installation of return air
filters.

GGeenneerraall IInnssttaallllaattiioonn

Return Air Filters

Modular Blower Width Filter

Qty and Size

14–1/2” 1 — 14” x 25” x 1”

17–1/2” 1 — 16” x 25” x 1”

21” 1 — 20” x 25” x 1”

24–1/2” 1 — 24” x 25” x 1”

Note: For upflow airflow modular blowers where the airflow

requirement exceeds 1600 CFM - modular blowers will
require return air openings and filters on: (1) both sides, or
(2) one side and the bottom, or (3) just on the bottom.

Important: Remove Blower Assembly and Panel Loop before cutting

1. Determine the appropriate position to set the modular blower in

2. For upflow side return installations, remove the insulation around

3. The side panels of the upflow modular blower include locating

4. If a 3/4" flange is to be used for attaching the air inlet duct, add to

5. If flanges are not required, and a filter frame is installed, cut

6. The bottom panel of the upflow modular blower must be removed

cabinet to avoid cutting wires.

order to connect to existing supply and return ductwork.

the opening in the blower compartment.

notches that are used as guides for cutting an opening for return
air, refer to the figure and the upflow modular blower outline
drawing for duct connection dimensions for various modular
blowers.

cut where indicated by dotted lines. Cut corners diagonally and
bend outward to form flange.

between locating notches as in illustration.

for bottom return air.

18-GE20D1-1E-EN

23

FILTER

CLOSE COUPLED (LESS THAN 36”)
RETURN (FILTER DIRECTLY BENEATH BOTTOM
SIDE RETURN) NOT RECOMMENDED DUE TO
NOISE CONSIDERATIONS. IF USED, SECURELY
ATTACH 1/2” MESH METAL HARDWARE CLOTH
PROTECTIVE SCREEN TO THE INSIDE BOTTOM
OF THE FILTER GRILLE.

LESS THAN 36”

GGeenneerraall IInnssttaallllaattiioonn

1. When the modular blower is installed in the horizontal right or left
application and a return duct is attached to the top side, do not
install a filter in the return duct directly above the modular blower.
Install the filter in a remote location.

When the modular blower is installed in the horizontal right or left
application and a close coupled (less than 36") return duct is
attached to the bottom side of the modular blower as shown
above, securely attach a 1/2" mesh metal hardware cloth
protective screen to the inside bottom of the filter grille to

prevent personal injury from contacting moving parts
when reaching into the return opening to replace the filter.

Close coupled (less than 36") return (filter directly beneath
bottom side return) is not recommended due to noise
considerations.

2. Connect the duct work to the modular blower. See Outline
Drawing for supply and return duct size and location.

Flexible duct connectors are recommended to connect both
supply and return air ducts to the modular blower.

If only the front of the modular blower is accessible, it is
recommended that both supply and return air plenums are
removable.

3. When replacing an modular blower, old duct work should be
cleaned out. Thin cloths should be placed over the registers and
the modular blower fan should be run for 10 minutes. Don’t forget
to remove the cloths before you start the modular blower.

4. The horizontal installation of the upflow modular blower

requires an external filter section. Filter kits are available
for horizontal applications.

RETURN AIR FILTERS FOR MODULAR BLOWER IN
HORIZONTAL CONFIGURATION

When the modular blower is installed in the horizontal configuration,
the return air filters must be installed exterior to the modular blower
cabinet. Remote filter grilles may be used for homeowner convenience
or the filters may be installed in the duct work upstream of the
modular blower.

24

18-GE20D1-1E-EN

O

BK

BK

Y2

Y1 Y1

B/C B/C

W2

W1W1

GG

RR

O

Y1

B/C

Two Stage
Thermostat

Modular Blower

Integrated Modular Blower Control

Outdoor Unit
(No Transformer)

SEE

NOTE 2

BK JUMPER
SEE NOTE 1

Y2

W2

Y2

Disabled.

Applying 24VAC to

W1 or W2 will

create error

FIELD WIRING DIAGRAM FOR SINGLE OR TWO STAGE
THERMOSTAT, SINGLE OR TWO STAGE COOLING

NOTES:

1) For PWM (BK) enabled thermostats, cut the BK jumper
on the Integrated Modular Blower Control (IMBC) and
connect wiring.

2) The factory Y1-O jumper must remain in place for proper
LED read out in cooling mode.

3) Y1 and Y2 wiring from the thermostat must connect to
the IMBC for proper airflow and LED readout.

4) Single compressor and two compressor airflow is auto­ matically set with the IMBC Menu optionsin ODU section.
2-1=2 stage / 1 compressor (1st stage airflow = 80%)
2-2=2 stage / 2 compressors (1st stage airflow = 50%)

INTER-COMPONENT WIRING

24 V FIELD WIRING
24 V FACTORY WIRING

O

BK

BK

Y2

Y1 Y1

B/C B/C

W2W2

W1W1

GG

RR

O

Y1

Two Stage
Thermostat

Outdoor Unit

(No Transformer)

SEE

NOTE 2

O

R

X2

Y2

NOTES:

1) For PWM (BK) enabled thermostats, cut the BK jumper
on the IMBC and connect wiring.

2) Remove the factory Y1-O jumper for HP systems
for proper LED read out.

3) Y1 and Y2 wiring from the thermostat must connect to Y1 and
Y2 of the IMBC for proper airflow and LED readout.

4) Single compressor and two compressor airflow is automatically
set with the IMBC Menu options in ODU section.
2-1=2 stage / 1 compressor (1st stage airflow = 80%)
2-2=2 stage / 2 compressors (1st stage airflow = 50%)

INTER-COMPONENT WIRING

24 V FIELD WIRING
24 V FACTORY WIRING

R-BK

JUMPER

SEE NOTE 1

FIELD WIRING DIAGRAM FOR SINGLE OR TWO

STAGE THERMOSTAT, SINGLE OR TWO STAGE HEAT PUMP

Integrated Modular Blower Control

Y2

B/C

Modular Blower

Disabled.

Applying 24VAC to W1 or

W2 will create error

GGeenneerraall IInnssttaallllaattiioonn

Electrical Connections

Make wiring connections to the unit as indicated on enclosed wiring diagram. This modular blower shall be connected into a permanently live
electric circuit. It is recommended that modular blower be provided with a separate "circuit protection device" electric circuit. The modular
blower must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code, ANSI/NFPA
70, if an external electrical source is utilized. The integrated modular blower control is polarity sensitive. The hot leg of the 120V power
supply must be connected to the black power lead as indicated on the wiring diagram.
Refer to the SERVICE FACTS literature and unit wiring diagram attached to modular blower.

Field Wiring

18-GE20D1-1E-EN

25

R

W2

G

W1

B/C

O

Y2

Y1

BK

W2

G

W1

O

Y2

Y1

BK

Indoor Unit

Relay Panel

Communicating
Control

HUM

HUM

AUX1

AUX1

AUX2

AUX2

W3

STG2

FAN

STG1

SOV

D

R

B

STG2

STG1

PWM

HUM

HUM

AUX1

AUX1

AUX2

AUX2

STG3

24V

ONLY

24V

ONLY

24V

ONLY

D

R

B

COMMUNICATING CONTROLS WITH NON-COMMUNICATING MODULAR BLOWER

AND COMMUNICATING VS COOLING/HP

D

R

B

Outdoor Unit

NOTES:

1. Cut the BK jumper at the indoor unit - After cutting the jumper, power must
be off or cycled on-off-on for the IMBC to work properly

2. Requires an 850 control with software version 3.0+ or 1050. Not a valid
combination with 950 control

CPC=CFM/Ton cooling. Must be set to 400.

Control Board LED’s will read “

CoF

“ continous fan during cooling and

heat pump operation.

24 V Field Wiring

Disabled.

Applying 24VAC to

W1 or W2 will

create error

GGeenneerraall IInnssttaallllaattiioonn

26

18-GE20D1-1E-EN

Integrated Modular Blower Control Menu

CLEARING THE LAST6 FAULTS:

To clear the stored faults, scroll to the last 6 faults

menu, enter the menu by scrolling to the right and

hold the “Opon” key for at least 5 seconds.

Release and a set of 3 dashes will be seen 3 mes.

This confirms the faults have been cleared

SETTING UP YOUR SYSTEM:

To change any factory default value, first remove any “call”

from the modular blower and allow any fan off delays to finish.

(

should be seen on the display)

Scroll to the selected Menu item by momentarily depressing

the “MENU” key and then depress the “OPTION” key to the

desired se"ng. Then momentarily depress the “MENU” key

again to save the change.

CFM per Ton selecons range from 290 – 450

Important:

When applied with zoning or a VSPD outdoor unit,

the CFM/Ton must be set to 400

Model ODT Op!ons [ ]= Default

Upflow

P0V0A 3T[3T], 1.5T, 2T, 2.5T

P0V0B 4T[4T], 2.5T, 3T, 3.5T

P0V0C 5T[5T], 3.5T, 4T, 4.5T

P0V0D 5T[5T], 3.5T, 4T, 4.5T

Designated Maximum 1st Stage Heat Pump Airflow Se#ng

ODU = 2-1 (1st stage airflow is 80% of the total airflow)

ODU = 2-2 (1st stage airflow is 50% of the total airflow)

Total airflow = CPH x Tonnage (400 x 3 = 1200)

Model Number Heang CFM

P0V0A000M30SCA 1000 (Total = 1240)

P0V0B000M40SCA

1200 (Total = 1440)

P0V0C000M50SCA 1400 (Total = 1680)

P0V0D000M50SCA 1400 (Total = 1680)

IdL

STATUS MENU

Err

ACTIVE ERRORS

CL1 Arf

Example

1

st

Stage Cooling

Example

800 CFM

L6F

LAST 6 FAULTS

CR1

Control Release#

CR21

Example

So&ware Version #

COd

Cooing Off Delay

000 090 180 EH

Example

seconds

Example

Enhanced Mode

ODT

OD Tonnage

3.0

Example

OD Nominal Tonnage

2.0 2.5 3.5

ODU

OD Unit Type

1-1 2-1

Example

Single Stage

COF

Connuous Fan

050 025

Example

50% Cooling Airflow

CPC

Cooliing CFM

per Ton

350 390

450

Example

CFM per Ton

000

HOD

Heat Off Delay

000

ISD

Inter-Stage Delay

000

GHC

Gas Heang CFM

P0V0

Control System Menu

2-2

Example

2 stage 1 compressor

Example

2 stage 2 compressor

080

CPH

Heang CFM

per Ton

Example

CFM per Ton

rUn

Run Test Mode

See Run Test Menu

350 390

450

18-GE20D1-1E-EN

27

P0V0

Examples of System Status

= Idle, no demand for cooling, hea!ng, or fan

= Demand for 1

st

stage cooling

= Demand for 2

nd

stage cooling

= Demand for 1

st

stage heat pump

= Demand for 2

nd

stage heat pump

= Demand for con!nuous fan

= Demand for outdoor unit defrost

/ = Calculated airflow is 800 CFM.

Airflow display is rounded down to the nearest 10 cfm

NOTES:

(1) The menu status displayed is solely dependent on the input of 24VAC

that is applied to the low voltage terminal strip.

(2) The status will alternate between the system mode and the airflow

request every 2 seconds.

(3) If an error occurs, an E*.* will alternately flash with the system mode

and airflow request.

(4) Some units will show demand airflow while others will show calculated airflow.

Calculated airflow will gradually ramp up and may take ~1-2 minutes to stabilize.

Example

Calculated CFM

Example

Airflow

IInntteeggrraatteedd MMoodduullaarr BBlloowweerr CCoonnttrrooll MMeennuu

28

18-GE20D1-1E-EN

Run Test Mode

–

Run Test Mode:
To enter Run Test Mode, scroll to

using the Menu key, then push the op!on key. The LED will flash three
!mes, then begin the test.
To exit the test mode, momentarily push the Menu key, cycle power to the

call for capacity or fan.

Sequence of Run Test Mode

– Turns the circula!ng blower on 1st stage compressor speed for 30 seconds
– Turns the circula!ng blower on 2nd stage compressor speed for 30 seconds

The above sequence will repeat two more !mes unless the Run Test Mode is exited, see above

Important: The Run Test Mode does not bring the outdoor unit on. It is designed to allow the technician to

observe each mode to ensure the IMBC, circula!ng blower are performing as intended. The run test
for the blower will take approximately 70 seconds to begin.

Note: During run test mode, depressing the option key will allow the user to hold (HLD) that test
sequence if measurements want to be taken. The exception is RU3 (ignitor).

thermostat

modular blower, or make a valid

IInntteeggrraatteedd MMoodduullaarr BBlloowweerr CCoonnttrrooll MMeennuu

18-GE20D1-1E-EN

29

Integrated Modular Blower Control (IMBC) Display
Codes

Modular Blower

IdL Idle

aRF

C0F Continuous Fan

CLI

CL2

Xp!

Xp2

err Active Alarm Menu

L6F

Cr Code Release Number

C0d

0dt

0du Outdoor Unit

COF

CpC

CpH

Xod

!sd

gXC

run Run Test Mode

Calculated Airflow times (followed by Airflow x 10)

First Stage Cooling

Second Stage Cooling

First Stage Heat Pump

Second Stage Heat Pump

Menu Options

Last 6 Faults (To clear — Hold Option button down for 5 seconds)

Cooling Off Delay (Seconds)

Outdoor Tonnage

Blower Constant Fan Airflow Multiplier (Percentage)

Cooling (CFM/Ton)

Heat Pump Heating (CFM/Ton)

Not Applicable

Not Applicable

Not Applicable

30

Alarm Error Code

e0!

e6.!

e6.2

e!2

e!3

e!4

e!5

e!7

e!8 Blower communication failure on the control

Alarm Explanation

Loss of the IRQ or other internal failures (Internal IMBC error)

Voltage reversed polarity

Bad grounding

Open fuse

Blower HP/OEM ID

No PM and local copy bad

Both of unit Data File in PM and local Unit Data File are corrupt

Blower motor no communication response

Error Codes

18-GE20D1-1E-EN

Motor
Communications

Personality
Module

Low Voltage Terminal Strip

12 Pin
Connector

LINE
Connections

EAC, HUM
Dry Contacts

Neutral
Connections

7 Segment LED

MENU and OPTION
Select Buttons

5 Amp Fuse

BK Jumper

FP

HLI

BK W2 W1 R G B/C Y2 Y1 O

MVH

MVL

GND

PS2

TH

MVC

HLO

PS1

TR

ILI

IInntteeggrraatteedd MMoodduullaarr BBlloowweerr CCoonnttrrooll ((IIMMBBCC)) DDiissppllaayy CCooddeess

Fault Code Recovery

Fault Code Recovery

1. To view the last 6 faults, press the “Menu” key until the “Last 6
Faults” (L6F) menu appears.

2. Enter the menu by pressing the “Option” key.

3. The last 6 faults can be viewed.

Clearing the Last 6 Faults

1. To clear the last 6 faults, press the “Menu” key until the “Last 6
Faults” (L6F) menu appears.

2. Enter the menu by pressing the “Option” key.

3. Hold the “Option” key for at least 5 seconds.

4. Release and a set of 3 dashes with be seen 3 times. This confirms
the faults have been cleared.

Resetting Factory Defaults

1. Display must be in Idle Mode.

2. Push the “Menu” and “Option” buttons at the same time for 15
seconds then release.

3. The 7 segment will flash “FD” 3 times. This confirms the unit has
been reset to the factory defaults.

18-GE20D1-1E-EN

31

Sequence of Operation

NNoottee:: The seven segment LED readout is based on

thermostat input.

NNoottee:: Some units will show demand airflow while

others will show calculated airflow. Calculated
airflow will gradually ramp up and may take ~1-2
minutes to stabilize.

EEAACC aanndd HHUUMM TTiimmiinngg

• EAC relay closes approximately 2 seconds after the
blower starts.

• EAC relay opens when the blower motor stops.

• HUM relay closes on any heating call (HP)
approximately 1 second after the blower motor
starts.

• HUM relay opens when any heating call (HP) is
removed.

SSiinnggllee SSttaaggee CCoooolliinngg

1. R-Y1-G contacts on the thermostat close sending
24VAC to the Y1 and G low voltage terminals on the
IMBC. Technician should read 24VAC between Y1­B/C and between G-B/C.

NNoottee:: Factory supplied Y1-O jumper must remain in

place for proper seven segment LED readout.
If removed, seven segment LED will read

HP1

”.

“

2. 24VAC is sent to the OD unit via thermostat wiring
energizing 1ststage compressor operation.

3. The indoor blower ramps to the 1
airflow. The seven segment LED for example will
alternately read:

CL1 = Cooling, Stage 1

ARF = Airflow

080 = 800 calculated cfm (value shown x 10)

4. When the temperature is lowered enough to satisfy
the thermostat setting, contacts R-Y1-G will open.
The OD unit shuts off and the indoor blower shuts
off, unless a blower off delay has been enabled in
the IMBC setup menu options. The seven segment
LED will read “IDL” = Idle, no thermostat demand.

TTwwoo SSttaaggee CCoooolliinngg

1. See sequence of operation for Single stage cooling
operation above (see steps 1-4).

2. R-Y2 contact on the thermostat closes sending
24VAC to Y2 low voltage terminal on the IMBC.

Technician should read 24VAC between Y2 and B/C.

3. 24VAC is sent to the OD unit via thermostat wiring.

4. The indoor airflow ramps to 2ndstage cooling
airflow. The seven segment LED for example will
read:

st

stage cooling

CL2 = Cooling, Stage 2

ARF = Airflow

160 = 1600 calculated cfm (value shown x 10)

5. When the temperature is lowered enough to satisfy
the thermostat setting, contacts R-Y1-Y2-G will
open.

6. The OD unit shuts off and the indoor blower shuts
off, unless a blower off delay has been enabled in
the IMBC setup menu options. The seven segment
LED will read “IDL” = Idle, no thermostat demand.

SSiinnggllee SSttaaggee HHeeaatt PPuummpp

1. R-Y1-G contacts on the thermostat close sending
24VAC to the Y1 and G low voltage terminals on the
IMBC. Technician should read 24VAC between Y1­B/C and between G-B/C.

NNoottee:: Factory supplied Y1-O jumper must be

removed for proper seven segment LED
readout. If left in place, seven segment LED

CL1

will read “

2. 24VAC is sent to the OD unit via thermostat wiring
energizing 1ststage compressor operation.

3. The indoor blower ramps to the 1ststage heat
pump airflow. The seven segment LED for example
will alternately read:

HP1 = Heat Pump heating, Stage 1

ARF = Airflow

080 = 800 calculated cfm (value shown x 10)

4. When the temperature is raised enough to satisfy
the thermostat setting, contacts R-Y1-G will open.
The OD unit shuts off and the indoor blower shuts
off, unless a blower off delay has been enabled in
the IMBC setup menu options. The seven segment
LED will read “IDL” = Idle, no thermostat demand.

TTwwoo SSttaaggee HHeeaatt PPuummpp

1. See sequence of operation for Single stage heat
pump operation above (see steps 1-4).

2. R-Y2 contact on the thermostat closes sending
24VAC to Y2 low voltage terminal on the IMBC.

Technician should read 24VAC between Y2 and B/C.

3. 24VAC is sent to the OD unit via thermostat wiring
energizing 2

4. The indoor blower ramps to the 2ndstage heat
pump airflow. The seven segment LED for example
will alternately read:

HP2 = Heat Pump heating, Stage 2

ARF = Airflow

160 = 1600 calculated cfm (value shown x 10)

nd

”.

stage compressor operation.

32

18-GE20D1-1E-EN

SSeeqquueennccee ooff OOppeerraattiioonn

5. When the temperature is raised enough to satisfy
the thermostat setting, contacts R-Y1-Y2-G will
open.

6. The OD unit shuts off and the indoor blower shuts
off. The seven segment LED will read “IDL” = Idle,
no thermostat demand.

18-GE20D1-1E-EN

33

Checkout Procedures

The final phase of the installation is the system Checkout Procedures. The following list represents the most common items covered in a
Checkout Procedure. Confirm all requirements in this document have been met.

☐ All wiring connections are tight and properly secured.

☐ Voltage and running current are within limits.

☐ Ductwork is sealed and insulated.

☐ Supply registers and return grilles are open, unobstructed, and air

filter is installed.

☐ Indoor blower and outdoor fan are operating smoothly and

without obstruction.

☐ Indoor blower motor set on correct speed setting to deliver

required CFM. “Blower and fan set screws are tight.”

☐ Cover panels are in place and properly tightened.

☐ System functions safely and properly in all modes.

☐ Owner has been instructed on use of system and given manual.

34

18-GE20D1-1E-EN

NNootteess

18-GE20D1-1E-EN

35

About Trane and American Standard Heating and Air Conditioning

Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For
more information, please visit www.trane.com or www.americanstandardair.com.

The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to
using environmentally conscious print practices.

18-GE20D1-1E-EN 22 Nov 2021

Supersedes 18-GE20D1-1D-EN (March 2021)

©2021