Lennox BCE3MC, BCS3MC Installation Instructions Manual

INSTALLATION INSTRUCTIONS

BCE3M*C & BCS3M*C SERIES AIR HANDLER

These instructions must be read and understood completely before attempting installation.

This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in
manuals, be alert to the potential for personal injury or death.

Table of Contents

Unit Dimensions ..........................................................2

Shipping and Packing List ...........................................3

General ........................................................................3

Requirements ..............................................................3

Installation Clearances ................................................4

Installation ...................................................................4

Condensate Drain........................................................8

Duct System and Filters ............................................10

Brazing Refrigerant Lines .......................................... 11

Sealing the Unit .........................................................13

Electrical Connections ...............................................13

Air Flow — Cooling Blower Speed ............................17

Check-Out Procedures ..............................................19

Operation ...................................................................19

Maintenance ..............................................................20

Cabinet Insulation ......................................................20

Use of Air Handler During Construction.....................21

THIS MANUAL MUST BE LEFT WITH THE

HOMEOWNER FOR FUTURE REFERENCE

WARNING

Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional installer (or
equivalent), service agency or the gas supplier.

215 Metropolitan Drive

West Columbia, SC 29170

507621-01 Issue 1720 Page 1 of 23

WARNING

This product contains a chemical known to the State
of California to cause cancer, birth defects or other
reproductive harm.

CAUTION

The Clean Air Act of 1990 bans the intentional venting
of refrigerant (CFCs, HCFCs and HFCs) as of July
1, 1992. Approved methods of recovery, recycling or
reclaiming must be followed. Fines and/or incarceration
may be levied for noncompliance.

*P507621-01*

(P) 507621-01

FRONT VIEW SIDE VIEW

1 (25)

Unit Dimensions

SUPPLY AIR

OPENING

E

1 (25)

LINE VOLTAGE

INLETS

(Top and Left Side)

3-5/8

(92)

5 (102)

F

TOP VIEW

CIRCUIT

BREAKER

COVER

AIR FLOW

G

D

SUCTION

LINE

LIQUID

LINE

1 (25)

LOW VOLTAGE

INLETS

(Top and Right Side)

3/4 (19)

LINE VOLTAGE INLETS

A

CONDENSATE DRAIN

PIPING PLATE (4)

(2-1/4 x 3-3/4)

FILTER ACCESS

(Top and Right Side)

LOW VOLTAGE INLETS

(Either Side)

CB

1/2

(13)

JH

Dimension

1-1/8

(29)

OPENING OPENING

1-1/8

(29)

018 024 030 036 042 048/060

in. mm in. mm in. mm in. mm in. mm in. mm

A 38 965 40-1/2 1029 43 1092 52-1/2 1334 48 1219 52-1/2 1334

B 15 381 18-1/2 470 18-1/2 470 21-7/8 556 21-7/8 556 21-7/8 556

C 22 559 22 559 22 559 22 559 26-1/4 667 26-1/4 667

D 13 330 16-1/2 419 16-1/2 419 19-7/8 505 19-7/8 505 19-7/8 505

E 14-1/2 368 14-1/2 368 14-1/2 368 14-1/2 368 18-3/4 476 18-3/4 476

F 8 203 8 203 8 203 8 203 9-1/4 235 9-1/4 235

G 5-5/8 143 5-5/8 143 5-5/8 143 5-5/8 143 4-1/2 114 4-1/2 114

H 12-3/4 324 16-1/4 413 16-1/4 413 19-5/8 498 19-5/8 498 19-5/8 498

J 20-3/8 518 20-3/8 518 20-3/8 518 20-3/8 518 24-5/8 625 24-5/8 625

Note: Unit is shipped congured for horizontal left-hand air discharge. Unit may be converted to horizontal right-hand air

discharge by repositioning horizontal drain pan.

Dimensions remain the same in all congurations.

1-1/8

(29)

507621-01Issue 1720Page 2 of 23

NOTE: These instructions are intended as a general guide and

do not supersede national, state or local codes in any way.

Shipping and Packing List

Package 1 of 1 contains the following:

1 - Assembled air handler unit factory-equipped for upow

or horizontal air discharge application (includes upow

and horizontal drain pans and pre-installed air lter).

Check equipment for shipping damage. If found,
immediately report damage to the last carrier. Check the

unit rating plate to conrm that delivered unit matches

order.

General

These air handlers are designed for indoor installation
only. As shipped, the unit is ready for installation in either

upow or horizontal left-hand air discharge applications.
Horizontal drain pan may be repositioned in the eld to

allow installation in the horizontal right-hand air discharge

position. Downow applications can be accomplished by
purchasing the available downow kit (see table 1).

All units come with a metering device installed.

CAUTION

Physical contact with metal edges and corners while
applying excessive force or rapid motion can result in
personal injury. Be aware of, and use caution when
working near these areas during installation or while
servicing this equipment.

These instructions are intended as a general guide and do
not supersede local or national codes in any way. Consult
authorities having jurisdiction before installation.

Compliance with all local, state, or national codes
pertaining to this type of equipment should be determined
prior to installation. Read this instruction manual, as well
as the instructions supplied in separate equipment, before
starting the installation.

In addition to conforming to manufacturer’s installation
instructions and local municipal building codes, installation
of Allied Air air handler units (with or without optional
electric heat), MUST conform with National Fire Protection
Association (NFPA) standards: “Standard for Installation of
Air Conditioning and Ventilation Systems” (NFPA No. 90A)
and “Standard for Installation of Residence Type Warm Air
Heating and Air Conditioning Systems” (NFPA No. 90B).

Model Downow Kit

-018 96W37

-024, -030 96W38

-036 97W95

-042, -048, -060 97W96

Table 1. Downow Kits

Requirements

IMPORTANT

These units are designed to match, and must be
used with, outdoor units as rated. The indoor sections
are manufactured with a metering device installed
to provide optimum refrigerant control and system
performance with a variety of different capacities of
outdoor units.

WARNING

Excessive Weight Hazard - Use two or more people
when moving and installing the unit. Failure to do so
can result in back or other type of injury.

All models are designed for indoor installation only. The

installation of the air handler, eld wiring, duct system, etc.

must conform to the requirements of the National Electrical
Code, ANSI/NFPA No. 70 (latest edition) in the United
States, and any state laws, and local ordinances (including
plumbing or waste water codes). Local authorities having
jurisdiction should be consulted before installation is
made. Such applicable regulations or requirements take
precedence over the general instructions in this manual.

Install the conditioned air plenum, ducts and air lters

(provided) in accordance with NFPA 90B Standard for
the Installation of Warm Air Heating and Air-Conditioning
Systems (latest edition).

The air handler is shipped from the factory completely

assembled. The unit is provided with anges for the

connection of the duct system.

Do not remove the cabinet knockouts until it has been
determined which knockouts will need to be removed for
the installation.

Select the air discharge position which best suits the site
conditions. Consider required clearances, space, routing
requirements for refrigerant line, condensate disposal,

lters, duct system, wiring, and accessibility for service.
Refer to the rating plate on the air handler for specic

information.

507621-01 Issue 1720 Page 3 of 23

WARNING

Installation Clearances

Danger of explosion. Keep ammable

materials and vapors, such as gasoline, away
from air handler. Place air handler so that
heating elements are at least 18 inches (46

cm) above the oor for a garage installation.

Failure to follow these instructions can result

in death, explosion, or re.

IMPORTANT

Excessive condensation may occur if the unit is installed
in a warm, humid place. When the unit is installed in
an unconditioned space, apply sealant around the
electrical wires, refrigerant piping, and condensate
lines at the point where they enter the cabinet.

Apply sealant on the inside of the cabinet at the
point where the electrical wires exit through the
conduit opening. This will also keep warm and moist
unconditioned air out of the air handler cabinet where
it will form condensate on the cooler control box and
electrical controls.

IMPORTANT

Non-Ducted Return Closet Installation

The air handler can be installed in a closet with a false
bottom to form a return air plenum. It may also be installed
with a return air plenum under the air handler.

Louvers or return air grilles are eld-supplied. Local codes

may limit application of systems without a ducted return to
single-story buildings.

When a BCE3M*C or BCS3M*C unit is installed in a closet
with a louvered return opening, the minimum open area for
the louvers will be:

• 320 square inches for -018 and -024 models;

• 360 square inches for -030 and -036 models;

• 450 square inches for -042 thru -060 models.

If the free area is not known, assume a 25% free area for
wood or a 75% free area for metal louvers or grilles. Using
the louver dimensions and the 25% or 75% assumption,
determine if the open area meets the minimum open area
listed above.

If a return air plenum is used, the return air grille should be
immediately in front of the opening in the plenum to allow

for the free ow of return air. When not installed in front of

the opening, there must be adequate clearance around the

air handler to allow for the free ow of return air.

This unit is approved for installation clearance to
combustible material as stated on the unit rating
plate. Accessibility and service clearances must take
precedence over combustible material clearances.

The air handler must be installed so that free access

is allowed to the coil/lter compartment and blower/

control compartment.

IMPORTANT

Horizontal applications of the air handler must be
installed sloped (approximately 5/8 inch) toward the
drain pan openings to ensure proper condensate
drainage.

Installation

General Information

WARNING

Improper installation, adjustment, alteration, service,
or maintenance can cause property damage, personal
injury, or loss of life. Installation and service must be

performed by a qualied installer or service agency.

These units are factory-assembled and congured for
installation in upow or horizontal left-hand air discharge

applications. Horizontal drain pan may be repositioned in

the eld to allow installation in the horizontal right-hand air

discharge position.

Each unit consists of a blower assembly, refrigerant coil,
and controls in an insulated galvanized steel factory-

nished enclosure. Knockouts are provided for electrical

wiring entrance.

For ease in installation, it is best to make any necessary

coil conguration changes before setting air handler in

place.

507621-01Issue 1720Page 4 of 23

For all performance testing, units must be tested in the

upow orientation with the horizontal drain pan removed.

Refrigerant Metering Device

These units are equipped with a factory-installed metering
device (TXV or piston). Ensure the indoor coil metering
device is properly sized for the outdoor unit being used.

Upow Application

1. The air handler must be supported on the bottom only

and set on solid oor or eld-supplied support frame.
Securely attach the air handler to the oor or support

frame.

2. If installing a unit in an upow application, remove the
horizontal drain pan.

IMPORTANT - The horizontal drain pan is not required

in upow air discharge installations; its removal
provides the best efciency and air ow.

3. Place the unit in the desired location and slope unit.
Connect return and supply air plenums as required
using sheet metal screws.

4. Install units that have no return air plenum on a stand

that is at least 14” from the oor. This will allow proper

air return.

NOTE: When the unit is installed in horizontal applications,
a secondary drain pan is recommended. Refer to local
codes.

NOTE: This unit may be installed in left-hand or right-hand
air discharge horizontal applications. Adequate support
must be provided to ensure cabinet integrity. Ensure that
there is adequate room to remove service and access
panels if installing in the horizontal position.

Left-Hand Air Discharge

1. Determine which plugs are required for drain line
connections.

2. With access door removed, remove drain line plugs to
install drain lines.

3. Set unit so that it is sloped toward the drain pan end of

the unit (see gure 11).

4. The left-hand air discharge horizontal conguration is
shown in gure 2.

AIR FLOW

Drains

HORIZONTAL DRAIN PAN

IMPORTANT - REMOVE PAN

FOR BEST EFFICIENCY

AND AIR FLOW.

HORIZONTAL DRAIN

UP-FLOW

DRAIN PAN

UP-FLOW DRAIN

CONNECTIONS (BOTH

SIDES; USE ONE SIDE

OR OTHER)

CONNECTIONS
(BOTH SIDES; NOT
USED)

Figure 1. Upow Conguration

Horizontal Applications

IMPORTANT

When removing the coil, there is possible danger of
equipment damage and personal injury. Be careful
when removing the coil assembly from a unit installed
in right- or left-hand applications. The coil may tip into
the drain pan once it is clear of the cabinet. Support the
coil when removing it.

PLUGS

LEFT‐HAND DRAINS

Figure 2. Left-Hand Discharge Conguration

5. If the unit is suspended, the entire length of the cabinet
must be supported. If you use a chain or strap, use a
piece of angle iron or sheet metal attached to the unit
(either above or below) to support the length of the
cabinet. Use securing screws no longer than 1/2 inch

to avoid damaging the coil or lter. See gure 3. Use

sheet metal screws to connect the return and supply
air plenums as required.

ANGLE IRON OR SHEET METAL

MAXIMUM 1/2”
LONG SCREW

AIR FLOW

FRONT VIEW

ELECTRICAL INLET CLEARANCE

4 IN. (102 MM)

END VIEW

Figure 3. Suspending Horizontal Unit

507621-01 Issue 1720 Page 5 of 23

Right-Hand Air Discharge

For horizontal right-hand air discharge, the following eld
modications are required.

1. Remove and set aside blower and coil access panels.

2. Remove brackets securing pan to unit. See gure 4.

Figure 4

3. Remove coil assembly, bottom drain pan and
horizontal drain pan as one unit from the air handler.

See gure 5.

4. Remove the blow-off prevention brackets, top cap and
drip pan between slabs. Move the horizontal drain pan

to the opposite side of the coil. See gure 6.

NOTE: The 1.5- and 2-ton units do not have or require
blow-off prevention brackets or drip pan.

Figure 5

Figure 6

507621-01Issue 1720Page 6 of 23

5. Reinstall the top cap. Rotate the blow-off prevention
brackets 180º and reinstall using the same screws.
Use the correct mounting holes; the brackets must

cover the hairpins. See gure 7.

7. Reinstall the brackets that hold the coil and horizontal

drain pan in place. See gure 9.

Figure 7

6. Slide coil assembly, bottom drain pan and horizontal
drain pan as one unit back into the air handler. See

gure 8.

Figure 9

8. Reinstall the blower and coil access panels.

Figure 8

507621-01 Issue 1720 Page 7 of 23

Condensate Drain

The air handler is provided with ¾” NPT condensate drain connections.

IMPORTANT

On units of this type, where the blower “draws” rather than “blows” air through the coil, traps must be installed in the
condensate drain lines (primary and auxiliary, if used). Traps prevent the blower from drawing air through the drain
lines into the air supply.

ABOVE

FINISHED

SPACE?

YES

NOTE - WHEN AN AIR HANDLER IS LOCATED
ABOVE A FINISHED SPACE, THE SECONDARY
DRAIN PA N MUST HAVE A LARGER FOOTPRINT
THAN THE AIR HANDLER.

ALWAYS RUN A SECONDARY (OVERFLOW) DRAIN LINE. IF NOT
POSSIBLE, INSTA LL LOW VOLTAGE OVERFLOW SWITCH KIT.
WIRE KIT TO SHUT DOWN COMPRESSOR PER INSTRUCTIONS.

USE TWO-PA RT 3/4” FEMALE SLIP INLET AND MALE ADAPTER

NO

WHEN OBSTRUCTIONS PREVENT DIRECT THREADING OF
OVERFLOW SWITCH.

SECONDARY (OVERFLOW) DRAIN LINE

PART #

X3169

AIR HANDLER DRAIN PA N

MAIN DRAIN

WHEN A COIL IS LOCATED ABOVE A FINISHED
SPACE, A 3/4” (19.1MM) SECONDARY DRAIN LINE
MUST BE:

● CONNECTED TO SECONDARY DRAIN PAN

SECONDARY

DRAIN PAN

TRAP MUST BE DEEP ENOUGH TO OFFSET MAXIMUM STATIC DIFFERENCES — GENERALLY,
TWO INCHES (51MM).

1

P-TRAP 49P66 REQUIRES A LARGER INSTALLATION SPACE THAN THE J-TRAP 91P90.

2

PIPE NIPPLE PROVIDED IN BAG ASSEMBLY - SCH 80, 3/4” I. D. X 5” - 34K7401 (1): CUT THE PIPE

IN HALF AND USE IT TO ROUTE THE MAIN DRAIN.

OR

● CONNECTED TO THE SECONDARY

(OVERFLOW) DRAIN OUTLET OF THE AIR
HANDLER DRAIN PAN.

VENT MUST EXTEND

ABOVE HEIGHT OF

COIL DRAIN PAN BY

TWO INCHES (51MM)

CLEAN OUT

PRESS IN

(DO NOT GLUE)

1” X 3/4” X 3/4”

REDUCING

TEE WITH

PLUG

1 #

P-TRAP
J-TRAP # 91P90

40 P- OR J-TRAP 3/4”

FOR NEGATIVE PRESSURE COILS (BLOWER
AFTER COIL), A TRAP IS REQUIRED ON THE
MAIN DRAIN LINE CONNECTED TO COIL.
SEE LOCAL CODES FOR TRAP
REQUIREMENTS ON SECONDARY DRAINS.

49P66,

OR ANY PVC SCH

VENT

2”

(51MM)

TRAP DEPTH

DRAIN LINE SHOULD
SLOPE A MINIMUM OF
ONE INCH PER 10 FEET
(25MM PER 3 METERS)

TO APPROVED

DRAIN

Figure 10. Typical Main and Overow Drain

IMPORTANT

A eld-fabricated secondary drain pan, with a drain

pipe to the outside of the building, is required in all

installations over a nished living space or in any area
that may be damaged by overow from the main drain

pan. In some localities, local codes may require a
secondary drain pan for any horizontal installation.

507621-01Issue 1720Page 8 of 23

Sloping the Unit

Make sure the unit is sloped (similar to the slope shown in

gure 11) (horizontal or upow) so that the drain pan will

empty completely without water standing in the pan.

NOTE: When installing drain line connection ttings
to the drain pan, hand tighten the tting and use a
thread sealant. Over-tightening the ttings can split

connections on the drain pan.

THIS CORNER SHOULD BE 5/8” (+/- 1/8”) HIGHER
THAN DRAIN CORNER

THIS CORNER SHOULD BE
5/8” (+/- 1/8”) HIGHER THAN
DRAIN CORNER

LEVEL PLANE

DRAIN CORNER

LEVEL PLANE

Figure 11. Sloping the Drain

Install Condensate Drain

The air handler is equipped with ¾” NPT condensate drain
connections.

IMPORTANT

On some pans, the primary and secondary drain holes

have knockouts. Conrm primary and secondary drains

are open.

1. These units are equipped with a drain pan, which
includes green (main drain) and red (secondary drain)
plugs. Unscrew the plugs to remove them before

inserting condensate drain ttings. See gure 12.

4. If the secondary drain line is to be used, remove the
plug or the knockout and route the drain line so that
water draining from the outlet will be easily noticed
by the homeowner. Refer to local codes for drain trap
requirements on the secondary drain line.

5. Check again to ensure drain ports and drain pan are
free of all debris.

6. Plug and check any unused drain pan openings for
tightness. Torque plugs to 30 in. lb. to prevent water
leaks or seepage from the drain pan.

7. Install a 2” trap in the main (primary) drain lines as

close to the unit as practical (see gure 10). Make sure

the top of the trap is below the connection to the drain
pan to allow complete drainage of the pan.

NOTE: Horizontal runs must have an anti-siphon air
vent (standpipe) installed ahead of the horizontal run.

See gure 10. An extremely long horizontal run may

require an oversized drain line to eliminate air traps.

NOTE: Do not operate air handler without a trap in
the main (primary) drain. The condensate drain is on
the negative pressure side of the blower; therefore, air
being pulled through the condensate line will not allow
positive drainage without a proper trap.

8. Route the drain line to the outside or to an appropriate
drain. Drain lines must be installed so they do not block
service access to the front of the air handler. A 24”

clearance is required for lter, coil, or blower removal

and service access.

NOTE: Check local codes before connecting the drain

line to an existing drainage system.

UNSCREW PLUGS

AND CONNECT

PROPERLY SIZED

FIELD-PROVIDED

FITTINGS AND

DRAIN LINES.

DRAIN PAN

GREEN MAIN

DRAIN PLUG

Figure 12

2. After removal of drain pan plugs, check the drain port
to see if holes have been drilled. If not drilled, use a
19/32” bit to drill out the primary drain hole; use a 3/8”
drill bit for the secondary drain hole. Remove all drill
shavings.

3. Install properly-sized, eld-provided connection ttings
and connect primary drain line to the main drain pan
connection.

507621-01 Issue 1720 Page 9 of 23

RED SECONDARY

DRAIN PLUG

9. Insulate the drain lines where sweating could cause
water damage.

Test Condensate Drain

Test the drain pan and drain line after installation:

1. Pour several quarts of water into drain pan. Use

enough water to ll both the drain trap and the line.

2. Check the installed drain pan. Drain pan must be

draining completely. Drain line ttings must not be

leaking. Water must be draining from the end of the
primary drain line.

3. Correct any leaks found.

Duct System and Filters

Duct System

The air handler is provided with anges for the connection

of the plenum and ducts. The air handler is equipped with

anges that can form a lter rack for the installation of the
air lter, or the lter may be installed as part of the return

air duct system.

Installing Duct System

Install the conditioned air plenum, ducts and air lters

(not provided) in accordance with NFPA 90B Standard for
the Installation of Warm Air Heating and Air-Conditioning
Systems (latest edition).

Connect supply air duct to the ange on top of the air

handler. If an isolation connector is used, it must be

nonammable.

Supply and return duct system must be adequately sized
to meet the system’s air requirements and static pressure
capabilities. The duct system should be insulated with
a minimum of 1” thick insulation with a vapor barrier in
conditioned areas or 2” minimum in unconditioned areas.

Supply plenum should be the same size as the anged

opening provided around the blower outlet and should
extend at least 3 ft. from the air handler before turning or
branching off plenum into duct runs. The plenum forms
an extension of the blower housing and minimizes air
expansion losses from the blower.

Filters

A lter is provided. Table 2 lists the lter size for each unit.

Model Filter Size

-018 12” x 20” x 1 11.50” x 19.50” x .75”

-024 and -030 15” x 20” x 1 14.50” x 19.50” x .75”

-036 18” x 20” x 1 17.50” x 19.50” x .75”

-042, -048 and -060 18” x 24” x 1 17.50” x 23.50” x .75”

Table 2. Filters

Actual Minimum

Filter Size

Field-Fabricated Return Air Duct Flange for
Horizontal Applications

A return air duct system is recommended, but not factory-

provided. If the unit is installed in a conned space or

closet, run a full-size return connection to a location outside
the closet.

CABINET
DOOR FLANGE

1−1/2

(38)

DUCT
FLANGE

3/4

(19)

1−1/2(38)

3/4

(19)

“A”

BRAKE DOWN 90 DEGREES

1/2

(13)

3/4

(19)

1/4 (6) DIA.

2−HOLES

BOTTOM OF
CABINET

DUCT
ADAPTER

3/4

(19)

1−1/2

(38)

IMPORTANT

If a high -efciency lter is being installed as part of
this system to ensure better indoor air quality, the lter
must be properly sized. High -efciency lters have a
higher static pressure drop than standard- efciency
glass/foam lters. If the pressure drop is too great,

system capacity and performance may be reduced.
The pressure drop may also cause the limit to trip
more frequently during the winter and the indoor coil
to freeze in the summer, resulting in an increase in the
number of service calls.

Before using any lter with this system, check the
specications provided by the lter manufacturer

against the data given in the appropriate Allied Air

Product Specications bulletin.

UNIT SIZE

−018 14−7/8 (378)

−024 & −030 18−3/8 (467)

−036 to −060

“A”

21−3/4 (552)

Figure 13. Cabinet and Duct Flange

507621-01Issue 1720Page 10 of 23

Brazing Refrigerant Lines

CAUTION

Refrigerant lines must be connected by a qualied

technician in accordance with established procedures.

IMPORTANT

Refrigerant lines must be clean, dehydrated,
refrigerant-grade copper lines. Air handler coils should

be installed only with specied line sizes for approved

system combinations.

Handle the refrigerant lines gently during the installation
process. Sharp bends or possible kinking in the lines
will cause a restriction.

Do not remove the caps from the lines or system
connection points until connections are ready to be
completed.

WARNING

Polyolester (POE) oils used with HFC-410A refrigerant
absorb moisture very quickly. It is very important that the
refrigerant system be kept closed as much as possible.
DO NOT remove line set caps or service valve stub
caps until you are ready to make connections.

WARNING

Danger of re. Bleeding the refrigerant

charge from only the high side may result in
the low side shell and suction tubing being
pressurized. Application of a brazing torch
while pressurized may result in ignition of the
refrigerant and oil mixture - check the high
and low pressures before unbrazing.

Brazing alloys and ux contain materials which are

hazardous to your health.

Avoid breathing vapors or fumes from brazing
operations. Perform operations only in well ventilated
areas.

Wear gloves and protective goggles or face shield to
protect against burns.

Wash hands with soap and water after handling brazing

alloys and ux.

NOTE: Recommended line length is 50’ or less. If more
than 50’ line set is required, contact Technical Services.

1. Route the suction and liquid lines from the ttings on

the indoor coil to the ttings on the outdoor unit. Run

the lines in a direct path, avoiding unnecessary turns
and bends.

2. Make sure that the suction line is insulated over the
entire exposed length and that neither suction nor

liquid lines are in direct contact with oors, walls, duct
system, oor joists, or other piping.

3. Connect the suction and liquid lines to the evaporator
coil. Take care to protect the cabinet and internal

components as detailed in gure 14.

4. To avoid damaging the rubber grommets in the cabinet
while brazing, slide the rubber grommets over the
refrigerant lines until they are away from the heat
source.

NOTE: Place wet rags against piping plate and around
suction line connections.

5. Braze using an alloy of silver or copper and phosphorus
with a melting point above 1,100°F (593°C).

NOTE: Do not use soft solder.

WARNING

When using a high pressure gas, such as dry
nitrogen, to pressurize a refrigeration or air
conditioning system, use a regulator that can
control the pressure down to 1 or 2 psig (6.9
to 13.8 kPa).

IMPORTANT

To prevent the build-up of high levels of nitrogen when
purging, be sure it is done in a well ventilated area.
Purge low pressure nitrogen (1 to 2 psig) through
the refrigerant piping during brazing. This will help to
prevent oxidation and the introduction of moisture into
a system.

507621-01 Issue 1720 Page 11 of 23

6. Allow refrigerant pipes to cool to room temperature.

NOTE: Make sure to route copper refrigerant tubing
away from sharp edges and make sure that it does
not touch other metal surfaces. This prevents damage
caused by vibration or metal-on-metal contact.

7. Reinstall the rubber grommets into the refrigerant
piping panel.

NOTE: Make sure expansion valve capillary tube is

not touching metal edges or copper tubing.

8. Make sure outdoor unit has been placed according
to the Installation Instructions and is connected to the
refrigerant lines.

PLEASE READ IMPORTANT ISSUES CONCERNING BRAZING

p

OPERATIONS ON PREVIOUS PAGES BEFORE PROCEEDING.

NOTE - REFER TO OUTDOOR UNIT INSTALLATION
INSTRUCTIONS FOR REFRIGERANT PIPING SIZE
REQUIREMENTS.

NOTE - Use silver alloy brazing rods with five or six percent
minimum silver alloy for copper-to-copper brazing, 45

ercent alloy for copper-to-brass and copper-to-steel

brazing.

PIPING
PLATE

REMOVE ACCESS PANEL

A

REMOVE RUBBER PLUG FROM BOTH LIQUID

B

AND SUCTION LINES

NOTE - BCE3M*V SERIES UNITS USE NITROGEN OR DRY AIR
AS A HOLDING CHARGE. IF THERE IS NO PRESSURE WHEN
THE RUBBER PLUGS ARE REMOVED, CHECK THE COIL FOR
LEAKS BEFORE INSTALLING.

EITHER REMOVE OR PUSH PIPE WRAPPING BACK

C

THROUGH HOLE IN PIPING PLATE BEFORE LINE
SET CONNECTION AND BRAZING.

LOW

HIGH

CONNECT PIPES

D

NOTE - REFRIGERANT LINE SETS
SHOULD BE ROUTED TO ALLOW
FILTER ACCESSIBILITY.

PLACE A WET RAG AGAINST PIPING

F

PLATE AND AROUND THE SUCTION
LINE CONNECTION. A

BRAZE CONNECTION. ALLOW PIPE TO

G

COOL BEFORE REMOVING WET RAG
FROM CTXV SENSING BULB AND PIPING
PANEL AREA.

REPEAT PREVIOUS PROCEDURE FOR

H

LIQUID LINE.

CONNECT GAUGES AND

E

START NITROGEN FLOW

FLOW REGULATED NITROGEN (AT 1 TO 2 PSIG)
THROUGH THE REFRIGERATION GAUGE SET INTO THE
VALV E STEM PORT CONNECTION ON THE OUTDOOR
UNIT LIQUID LINE SERVICE VALVE AND OUT OF THE
VALV E STEM PORT CONNECTION ON THE SUCTION
SERVICE VALVE.

REFER TO INSTRUCTIONS PROVIDED WITH OUTDOOR
UNIT FOR LEAK TESTING, EVACUATING AND CHARGING
PROCEDURES

NITROGEN

Figure 14. Brazing

507621-01Issue 1720Page 12 of 23

Sealing the Unit

WARNING

Seal the unit so that warm air is not allowed into the cabinet.
Warm air introduces moisture, which results in water blow­off problems. This is especially important when the unit is
installed in an unconditioned area.

If installed in an unconditioned space, sealant should be
applied around the electrical wires, refrigerant tubing, and
condensate lines where they enter the cabinet.

WARNING

There must be an airtight seal between the bottom of

the air handler and the return air plenum. Use berglass

sealing strips, caulking, or equivalent sealing method
between the plenum and the air handler cabinet to
ensure a tight seal. Return air must not be drawn
from a room where this air handler or any gas-fueled
appliance (ie., water heater), or carbon monoxide-

producing device (ie., wood replace) is installed.

IMPORTANT

Run 24V Class II wiring only through specied low

voltage opening. Run line voltage wiring only through

specied high voltage opening. Do not combine

voltage in one opening.

WARNING

ELECTRIC SHOCK HAZARD

Can cause injury or death.

Foil-faced insulation has conductive characteristics
similar to metal. Be sure there are no electrical
connections within a 1/2” of the insulation. If the foil­faced insulation comes in contact with electrical
voltage, the foil could provide a path for current to pass
through to the outer metal cabinet. While the current
produced may not be enough to trip existing electrical
safety devices (e .g. fuses or circuit breakers), the
current can be enough to cause an electric shock
hazard that could cause personal injury or death.

When sealing the cabinet, be sure to seal closed any
space around the holes where the drain lines exit the
cabinet using duct tape and/or Permagum. Warm air
must not be allowed to enter through any gaps or
holes in the cabinet.

IMPORTANT

Make sure the liquid line and suction line entry points

are sealed with either Armaex material or with

Permagum. Permagum may also be used to seal
around the main and auxiliary drains and around open
areas of electrical inlets.

Electrical Connections

WARNING

Electric shock hazard! - Disconnect all

power supplies before servicing.

Replace all parts and panels before
operating.

Failure to do so can result in death or
electrical shock.

WARNING

ELECTRIC SHOCK HAZARD

Can cause injury or death. Unit must be
grounded in accordance with national
and local codes.

Line voltage is present at all components
when unit is not in operation on units
with single-pole contactors. Disconnect
all remote electric power supplies before
opening access panel. Unit may have
multiple power supplies.

• Wiring must conform to the current National Electric
Code ANSI/NFPA No. 70, or Canadian Electric Code
Part I, CSA Standard C22.1, and local building codes.
Refer to following wiring diagrams. See unit nameplate
for minimum circuit ampacity and maximum over­current protection size.

• Electrical wiring, disconnect means and over­current protection are to be supplied by the
installer. Refer to the air handler rating plate
for maximum over-current protection, minimum
circuit ampacity, as well as operating voltage.
Select the proper supply circuit conductors in
accordance with tables 310-16 and 310-17 in the
National Electric Code, ANSI/NFPA No. 70 or tables 1
through 4 in the Canadian Electric Code, Part I, CSA
Standard C22.1.

507621-01 Issue 1720 Page 13 of 23

• The power supply must be sized and protected

according to the specications supplied on the product.

• This air handler is factory-congured for 240 volt,
single phase, 60 cycles. For 208-volt applications, see
“208 Volt Conversion” later in this section.

• Separate openings have been provided for 24V low
voltage and line voltage. Refer to the dimension

illustration for specic location.

• This unit is provided with holes for conduit. Use
provided caps to seal holes not used.

• Typical unit wiring (as well as wiring of optional eld-

installed electric heat) is given in gure 18. Refer to

the instructions provided with the electric heat section
for proper installation.

• For optional eld-installed electric heat applications,
refer to the instructions provided with the accessory
for proper installation.

WARNING

Figure 16

USE COPPER CONDUCTORS ONLY!

1. Disconnect all power supplies.

2. Remove the air handler access panel.

3. Route the eld supply wires to the air handler electrical
connection box.

4. Use UL-listed wire nuts to connect the eld supply
conductors to the unit black and yellow leads, and the
ground wire to ground terminal marked GND.

5. Replace the air handler access panel.

208 Volt Conversion

1. Disconnect all power supplies.

2. Remove the air handler access panel.

3. Using the wiring diagram located on the unit access
panel as a reference, move the 2 connected black
transformer leads from the 240 volt terminal on the
transformer to the 208 volt terminal on the transformer.

WARNING

Electrically ground air handler. Connect
ground wire to ground terminal marked
“GND”.

Failure to do so can result in death or
electrical shock.

208 / 240 VOLT TRANSFORMER

PRIMARY SECONDARY

Figure 15

NOTE: To avoid the possibility of moisture damage to the

control in some right-hand discharge congurations, the

control panel can be relocated to the end panel as shown

in gure 16.

240 Volts

208 Volts

Figure 17

507621-01Issue 1720Page 14 of 23

220

208/240

VOLTAGE

BY OTHERS

PART NO. 067203400

CIRCUIT BREAKER 2

L1B

L2B

L1A

L2A

14 YEL

14 BLK

TO BLOWER

GROUND LUG

2

1

1

GND.

CIRCUIT
BREAKER 1

GND

WIRING DIAGRAM - ELECTRIC HEAT

SEQUENCER 2

12 BLK

12 BLK

12 BLK

12 BLK

14 RED

14 GRN

14 RED

3

3

1

18 BLU

18 BLU

SEQUENCER 1

5

3

1

12 YEL
12 YEL

18 BLU

4

4

2

6

4

2

12 YEL

12 YEL

18 WHT

5

18 BLK

12 BLK

12 BLK

***SEQ4

12

3

18 BLU

12 BLK

12 BLK

18 WHT

6

65432

4

***SEQ3
1

3

LS3

LS1

LS2

LS4

2

4

6-PIN

PLUG

2nd STAGE

12 YEL

12 YEL

18 BLK

1st STAGE

1st STAGE

HE2

HEATERS USED
5 KW = HE1

7.5 & 10 KW = HE1 & HE2

HE3

HE4

HE1

15 KW = HE1,HE2 & HE3

20 KW = HE1,HE2,HE3 & HE4

TB = TERMINAL BLOCK

CB = CIRCUIT BREAKER
SEQ = SEQUENCER
GND = GROUND LUG
LS = LIMIT SWITCH
HE = HEAT ER ELEMENT

POWER (FACTORY WIRED)
POWER (FIELD WIRED)
CONTROL (FACTORY WIRED)
CONTROL (FIELD WIRED)

18 BLK

CONTROL CIRCUIT WIRING TO

BE 24 VOLT, N.E.C. CLASS 2

PLUG PIN

LOCATION

2

2

3

3

6514

4156

(OPT.)

(OPT.)

THREE POLE SEQUENCER

TIMING - SEC

ON

OFF

1-20

40-110

20-60

1-30

20-60

1-30

TWO POLE SEQUENCER

TIMING - SEC
ON

OFF

30-90

1-30

30-90

1-30

14 BLK L1

14 YEL L2

TRANSFORMER

COM

208V

240V

120V

OR

220V

# FACTORY SPEED SET TO MEDIUM (BLUE) FOR -018, -024, -030, -036,

-042, AND -060. FACTORY SPEED SET TO LOW (RED) FOR -048

24

18 BLU

14 BLK

18 RED

18 BLU

24V

C

3

1

TIME DELAY

18 BLU

14 RED

18 GRN

BLOWER REALY

3

6

4

1

5

2

18 WHT

18 BLU

18 GRN

5

18 RED

2

#

14 BLUE (MED)

14 RED(LO)
14 BLK(HI)

14 YEL(COM)

WARNING

USE COPPER CONDUCTORS

18 BLK

4

3

2

1

ONLY

BLUE

RED
BLK

YEL

+

W2

W1

**

BLK

WHT

C

BLU

GRN

RED

GND

BRN/WHT

BRN

TO

THERMOSTAT

CAP

G

R

MTR

TD = TIME DELAY (OPT.)

TR = TRANSFORMER
BR = BLOWER RELAY

MTR = BLOWER MOTOR

CAP = MOTOR CAPACITOR
GND = GROUND CONNECTION

*** SEQUENCER USED: WIRED AS SHOWN

BY OTHERS

RELAY USED: WIRED PER RELAY POLE
TO BREAK CIRCUIT
NO DEVICE PRIOR TO 10-15-2014

WIRING DIAGRAM: NO HEAT

WIRE NUTS

BY OTHERS

14 BLK

1

6-PIN

PLUG

14 YEL(240V)

14 WHT(120V)

2

TO

GROUND LUG

14 GRN

L1

L2 OR

NEUT.

15 AMP

SUPPLY

VOLTAGE

507621-01 Issue 1720 Page 15 of 23

Figure 18. Typical Wiring Diagram

SEE

NOTE

AIR HANDLERTHERMOSTAT

R

G

BU

Y

AIR

CONDITIONER

UNIT

COOLING‐ONLY APPLICATION

SEE

NOTE

THERMOSTAT

AIR HANDLERTHERMOSTAT

R

G

BU

W

HEAT‐ONLY APPLICATION

AIR HANDLER

R

HEAT PUMP

UNIT

AIR HANDLERTHERMOSTAT

G

R

SEE

NOTE

G

W

BK

BU

Y

AIR CONDITIONER

UNIT

COOLING APPLICATION WITH

ELECTRIC HEAT

CONNECT COMMON

WIRE ONLY IF

REQUIRED

(REFER TO THE

APPROPRIATE

THERMOSTAT

INSTALLATION

INSTRUCTIONS)

HEAT PUMP APPLICAT ION WITH

ELECTRIC HEAT

BU

BK

W

NOTE - Connect common wire only if required (Refer to the appropriate thermostat installation instructions).

Figure 19. Low Voltage Connections

507621-01Issue 1720Page 16 of 23

Air Flow — Cooling Blower Speed

p

The cooling blower speed is factory congured to provide
correct air ow for an outdoor unit that matches the cooling

capacity rating of the air handler.

If the outdoor unit is smaller than the maximum cooling
capacity rating for the air handler, the cooling blower speed
may need to be changed. Refer to blower performance
chart (table 3).

WARNING

ELECTRIC SHOCK HAZARD!

Disconnect all power supplies before
servicing.

Replace all parts and panels before
operating.

Failure to do so can result in death or
electrical shock.

Change Blower Speed

1. Disconnect all power supplies.

2. Remove the air handler access panel.

3. Locate pin number 2 on the blower relay. Two black
wires are connected to this terminal pin. One connects
to pin number 5 on the blower relay, one connects to
an in-line splice connecting to a blue wire.

4. Select the required blower motor speed connect red­LO or black-HI and plug it into the 4-pin blower relay
harness connector.

NOTE: Reuse the factory-installed wire nut on the
unused wires.

5. Replace all panels.

6. Reconnect power.

BLOWER RELAY

NOTE - Refer to wiring diagram located on the
unit access panel, this figure, and blower

erformance (table 2).

All air data measured external to unit with 1
inch non-pleated air filter in place.

All factory settings are medium speed except
the -48 which is set to low speed from the
factory.

All data given while air handler is operating
with a dry DX coil.

3
6

4

GND

BRN / WHT

BRN

Figure 20

MTR

5

BLOWER RELAY
HARNESS

BLUE (MED)

PLASTIC CAPS

RED (L0)

2

BLACK (HI)

BLUE

4

RED

3

BLK

2

YEL+

1

4-PIN

BLOWER CONNECTOR

YELLOW (COM)

507621-01 Issue 1720 Page 17 of 23

Air Handler

Model

-018

-024

-030

-036

-042

-048

-060

Blower Speed .10” WC .20” WC .30” WC .40” WC .50” WC

Low (Red) 510 495 475 420 325

Med (Blue) 670 650 630 595 505

High (Black) 905 865 820 770 705

Low (Red) 630 625 615 610 580

Med (Blue) 885 875 850 820 780

High (Black) 1130 1100 1070 1010 950

Low (Red) 900 865 830 780 740

Med (Blue) 1075 1060 1030 985 940

High (Black) 1240 1210 1170 1135 1085

Low (Red) 1075 1040 1000 950 900

Med (Blue) 1300 1250 1205 1145 1085

High (Black) 1510 1450 1390 1320 1245

Low (Red) 1325 1315 1300 1275 1225

Med (Blue) 1490 1465 1440 1395 1315

High (Black) 1820 1770 1690 1600 1500

Low (Red) 1775 1710 1645 1565 1470

Med (Blue) 1995 1895 1800 1685 1560

High (Black) 2070 1970 1850 1719 1595

Low (Red) 1675 1630 1580 1520 1450

Med (Blue) 1965 1925 1875 1800 1695

High (Black) 2140 2085 2000 1895 1795

• Blower Performance (CFM vs. ESP inches H2O)

• Cooling speeds should not be reduced below factory setting.

• Units with electric heat approved at 0.5” maximum and medium blower speed minimum.

• Downow units should be set to high speed minimum.

• Different speeds can be set for heating mode.

Table 3. Blower Performance

507621-01Issue 1720Page 18 of 23

Check-Out Procedures

NOTE: Refer to outdoor unit installation instructions for

system start-up instructions and refrigerant charging
instructions.

Pre-Start-Up Checks

• Is the air handler properly and securely installed?

• If horizontally congured, is the unit sloped up to 5/8
inch toward drain lines?

• Will the unit be accessible for servicing?

• Has an auxiliary pan been provided under the unit

with separate drain for units installed above a nished
ceiling or in any installation where condensate overow

could cause damage?

• Have ALL unused drain pan ports been properly
plugged?

• Has the condensate line been properly sized, run,
trapped, pitched, and tested?

• Is the duct system correctly sized, run, sealed, and
insulated?

• Have all cabinet openings and wiring been sealed?

• Is the indoor coil metering device properly sized for the
outdoor unit being used?

• Have all unused parts and packaging been disposed
of properly?

• Is the lter clean, in place, and of adequate size?

• Is the wiring neat, correct, and in accordance with the
wiring diagram?

• Is the unit properly grounded and protected (fused)?

• Is the thermostat correctly wired and in a good
location?

• Are all access panels in place and secure?

Check Blower Operation

• Set thermostat to FAN ON.

• The indoor blower should come on.

Check Cooling Operation

• Set thermostat to force a call for cooling (approximately
5ºF lower than the indoor ambient temperature).

• The outdoor and indoor units should come on
immediately.

• Check the air ow from a register to conrm that the
system is moving cooled air.

• Set the thermostat 5ºF higher than the indoor
temperature. The indoor blower and outdoor unit
should cycle off. Air handler should cycle off 45
seconds after the outdoor unit shuts off.

Check Electric Heater (if used)

• Set thermostat to call for auxiliary heat (approximately
5°F above ambient temperature). The indoor blower
and auxiliary heat should come on together. Allow a
minimum of 3 minutes for all sequencers to cycle on.

• Set the thermostat so that it does not call for heat.
Allow up to 5 minutes for all sequencers to cycle off.

Operation

Time Delay Relay

Blower time delay operation:

1. When cooling demand is initiated, there is a 1 second
motor-on delay.

2. After the motor-on delay expires, motor ramps up
to 100% and runs at 100% until cooling demand is

satised.

3. Once demand is met, motor runs at 100% for 45
seconds.

4. Motor ramps down to stop.

34

100%

1

1

SECOND

DELAY

2

CFM

COOLING

DEMAND

Figure 21

Cooling (Cooling Only or Heat Pump)

When the thermostat calls for cooling, 24 volts is put on
the blower time-delay relay coil and then the indoor blower
relay energizes. The normally open contacts close, causing
the indoor blower motor to operate. The circuit between R
and Y is completed, closing the circuit to the contactor in
the outdoor unit, starting the compressor and outdoor fan
motor.

On heat pumps, circuit R and O energizes the reversing
valve, switching the valve to the cooling position. (The
reversing valve remains energized as long as the
thermostat selector switch is in the COOL position.)

At the completion of the cooling demand, the indoor blower
and outdoor unit should cycle off. Air handler should cycle
off 45 seconds after the outdoor unit shuts off.

Heating (Electric Heat Only)

When the thermostat calls for heat, the circuit between R
and W is completed, and the heat sequencer is energized.
A time delay follows before the heating elements and the
indoor blower motor come on. Units with a second heat
sequencer can be connected with the rst sequencer to W
on the thermostat sub-base, or they may also be connected
to a second stage on the sub-base.

100%

CFM

45

SECS

OFF

507621-01 Issue 1720 Page 19 of 23

Heating (Heat Pump)

When the thermostat calls for heating, 24 volts is applied to
the blower time-delay relay coil. The normally open contacts
close, causing the indoor blower motor to operate. The
circuit between R and Y is completed, closing the circuit to
the contactor in the outdoor unit, starting the compressor
and outdoor fan motor.

If the room temperature continues to decrease, the circuit
between R and W1 is completed by the second-stage heat
room thermostat. Circuit R-W1 energizes a heat sequencer.
The completed circuit will energize supplemental electric
heat (if applicable). Units with a second heat sequencer
can be connected with the rst sequencer to W1 on the
thermostat. They may also be connected to a second
heating stage W2 on the thermostat sub-base.

Emergency Heat (Heating Heat Pump)

If the selector switch on the thermostat is set to the
emergency heat position, the heat pump will be locked out
of the heating circuit, and all heating will be electric heat (if
applicable). A jumper should be placed between W2 and E
on the thermostat sub-base so that the electric heat control

will transfer to the rst-stage heat on the thermostat. This

will allow the indoor blower to cycle on and off with the
electric heat when the fan switch is in the AUTO position.

Maintenance

IMPORTANT

Do not operate system without a lter. A lter is

required to protect the coil, blower, and internal parts

from excessive dirt and dust. The lter is placed in the

return duct by the installer.

Cabinet Insulation

IMPORTANT

DAMAGED INSULATION MUST BE REPAIRED
OR REPLACED before the unit is put back into

operation. Insulation loses its insulating value when
wet, damaged, separated or torn.

Matte- or foil-faced insulation is installed in indoor equipment
to provide a barrier between outside air conditions
(surrounding ambient temperature and humidity) and the
varying conditions inside the unit. If the insulation barrier is
damaged (wet, ripped, torn or separated from the cabinet
walls), the surrounding ambient air will affect the inside
surface temperature of the cabinet. The temperature/
humidity difference between the inside and outside of the
cabinet can cause condensation on the inside or outside
of the cabinet, which leads to sheet metal corrosion and
subsequently, component failure.

Repairing Damaged Insulation

Areas of condensation on the cabinet surface are an
indication that the insulation is in need of repair.

If the insulation in need of repair is otherwise in good
condition, the insulation should be cut in an X pattern,
peeled open, glued with an appropriate all-purpose glue
and placed back against the cabinet surface, being careful
to not overly compress the insulation so the insulation can
retain its original thickness. If such repair is not possible,
replace the insulation. If using foil-faced insulation, any
cut, tear, or separations in the insulation surface must be
taped with a similar foil-faced tape.

• Inspect air lters at least once a month and replace or

clean as required. Dirty lters are the most common

cause of inadequate heating or cooling performance.

• Replace disposable lters. Cleanable lters can be
cleaned by soaking in mild detergent and rinsing with
cold water.

• Install new/clean lters with the arrows on the side

pointing in the direction of air ow. Do not replace a
cleanable (high velocity) lter with a disposable (low
velocity) lter unless return air system is properly

sized for it.

• If water is seen dripping from the secondary drain line,

contact a qualied service technician. This is a sign

of a problem that must be investigated and corrected.

GLUE - Make sure there is
full coverage of glue on the
metal or insulation so there
are no areas where air
pockets may form, which
can lead to sweating.

1. Cut insulation in X pattern

2. Apply glue

3. Press glued tabs against cabinet

Figure 22. Repairing Insulation

507621-01Issue 1720Page 20 of 23

Use of Air Handler During Construction

Allied Air does not recommend the use of its air handler
unit during any phase of construction. Very low return air
temperatures, harmful vapors and operation of the unit

with clogged or misplaced lters will damage the unit.

Air handler units may be used for heating (heat pumps)
or cooling of buildings under construction, if the following
conditions are met:

• A room thermostat must control the air handler. The

use of xed jumpers is not allowed.

• Air lter must be installed in the system and must be
maintained during construction.

• Air lter must be replaced upon construction
completion.

• The air handler evaporator coil, supply fan assembly
and duct system must be thoroughly cleaned following

nal construction clean-up.

• All air handler operating conditions must be veried
according to these installation instructions.

507621-01 Issue 1720 Page 21 of 23

Installing Contractor’s Name_______________________

Installing Contractor’s Phone_______________________
Job Address____________________________________

8

Temperature

1

Duct

System

5

Duct Static

Installing Date_______________________________

Air Handler Model #___________________________

Thermostat

SUPPLY

AIR

9

Disconnect

Switch

2

Line Voltage

3

Integrated Control

Blower Motor Amps

6

Electric Heat Amps

7

RETURN

AIR

DUCT SYSTEM

1

SUPPLY AIR DUCT

Sealed

Insulated (if necessary)

Registers Open and Unobstructed

RETURN AIR DUCT

Sealed

Filter Installed and Clean

Registers Open and Unobstructed

2

INTEGRATED CONTROL

Jumpers Configured Correctly (if applicable)

Appropriate Links in Place (if applicable)

3

VOLTAGE CHECK

Supply Voltage ___________

Low Voltage _____________

Electrial Connections Tight

4

DRAIN LINE

Leak Free

Filter

TOTAL EXTERNAL STATIC (dry coil)

5

Supply External Static ______ ______

Return External Static ______ ______

Total External Static = ______ ______

6

ELECTRIC HEAT AMPS____________

7

INDOOR BLOWER AMPS___________

INDOOR BLOWER CFM____________

TEMPERATURE DROP (Cooling Mode)

8

Return Duct Temperature ___________

Supply Duct Temperature − ___________

8

TEMPERATURE RISE (Heating Mode)

Return Duct Temperature __________

Supply Duct Temperature − __________

9

THERMOSTAT

Adjusted and Programmed

Operation Explained to Owner

4

Drain Line

dry coil wet coil

Temperature Drop = ___________

Temperature Rise = __________

Explained Operation of System to Homeowner

Technician’s Name:_______________________Date Start−Up & Performance Check Completed__________

Figure 23. Start-Up and Performance Checklist (Up-ow Conguration)

507621-01Issue 1720Page 22 of 23

Installing Contractor’s Name_______________________
Installing Contractor’s Phone_______________________

Job Address____________________________________

Thermostat

9

1

Duct System

2

Integrated

Control

Filter

Installing Date_______________________________
Air Handler Model #___________________________

Disconnect

Switch

Line Voltage

3

1

Duct System

RETURN

AIR

4

Drain Line

DUCT SYSTEM

1

SUPPLY AIR DUCT

Sealed

Insulated (if necessary)

Registers Open and Unobstructed

RETURN AIR DUCT

Sealed

Filter Installed and Clean

Registers Open and Unobstructed

2

INTEGRATED CONTROL

Jumpers Configured Correctly (if applicable)

Appropriate Links in Place (if applicable)

3

VOLTAGE CHECK

Supply Voltage ___________

Low Voltage _____________

Electrial Connections Tight

4

DRAIN LINE

Leak Free

5

Duct Static

8

Temperature

SUPPLY

AIR

Electric Heat Amps

6

Blower motor Amps

7

TOTAL EXTERNAL STATIC (dry coil)

5

dry coil wet coil

Supply External Static ______ ______

Return External Static ______ ______

Total External Static = ______ ______

6

ELECTRIC HEAT AMPS____________

7

INDOOR BLOWER AMPS___________

INDOOR BLOWER CFM____________

TEMPERATURE DROP (Cooling Mode)

8

Return Duct Temperature ___________

Supply Duct Temperature − ___________

Temperature Drop = ___________

8

TEMPERATURE RISE (Heating Mode)

Return Duct Temperature __________

Supply Duct Temperature − __________

Temperature Rise = __________

9

THERMOSTAT

Adjusted and Programmed

Operation Explained to Owner

Explained Operation of System to Homeowner

Technician’s Name:_______________________Date Start−Up & Performance Check Completed__________

Figure 24. Start-Up and Performance Checklist (Horizontal Conguration)

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