The MP modular air handler series provides the flexibility for installation
in any position. This unit may be used for upflow, downflow, horizontal
right, or horizontal left applications.
These units may be located in a closet, utility room, attic, crawl space,
or basement. These versatile models may be used for cooling or heat
pump operation with or without electric heat or indoor coil.
Top or side power and control wiring, color coded leads for control
wiring, and electric heaters all combine to make the installation easy
and minimize installation cost.
Electric heat kits are available as field installed accessories. Single
phase kits are available from 2.5 kW to 20 kW.
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury.
alert against unsafe practices and hazards involving only property
damage.
.
.
It is also used to
WARNING
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in serious
injury, death or property damage. A fire or electrical hazard may result
causing property damage, personal injury or loss of life.
WARNING
The air handler area must not be used as a broom closet or for any other
storage purposes, as a fire hazard may be created. Never store items
such as the following on, near or in contact with the furnace.
1. Spray or aerosol cans, rags, brooms, dust mops, vacuum cleaners or other cleaning tools.
2. Soap powders, bleaches, waxes or other Cleaning compounds;
plastic items or containers; gasoline, kerosene, cigarette li ghter
fluid, dry cleaning fluids or other volatile fluid.
3. Paint thinners and other pain ting compounds.
4. Paper bags, boxes or other paper products
Never operate the air handler with the blower door removed. To do so
could result in serious personal injury and/or equipment damage.
1190828-UIM-G-0915
1190828-UIM-G-0915
!!!
SIDE VIEW
RETURN AIR
DUCT
A0398-001
Whenattachingduct work with
screws - keep screws within 5/8”
ofsidesand back ofair handler.
WARNING
Improper installation, adjustment, alteration, or maintenance may create a condition where the operation of the product could cause personal injury or property damage. Refer to this manual for assistance,
or for additional information, consult a qualified contractor, installer, or
service agency.
CAUTION
This product must be installed in strict compliance with the installation
instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical codes.
SAFETY REQUIREMENTS
1. Failure to carefully read and follow all instructions in this manual
can result in air handler malfunction, death, personal injury and/or
property damage.
2. This air handler should be installed in accordance with all national
and local building/safety codes and requirements, local plumbing or
wastewater codes, and other applicable codes.
3. This air handler should be installed only in a location and position
specified in the “Unit Installation” section of this Instruction Manual.
4. The air handler is not to be used for temporary heating of buildings
or structures under construction.
5. Always install the air handler to operate within the air handler’s
intended maximum outlet air temperature.
6. The unit rating plate displays the air handler model number. The
unit dimensions for the supply air plenum are provided in Figure 5
and Table 1 of this Instruction Manual. The plenum must be
installed according to the instructions. The return air duct attachment is shown in Figure 1.
7. Clearance from combustible material is provided under “Clearances” in the “Unit Installation” section.
8. It is necessary to maintain clearances for servicing. Access must be
allowed for electric heaters and blower.
9. The unit rating plate and power supply must be verified to ensure
that the electrical characteristics match.
10. Air handler shall be installed so the electrical components are protected from water.
11. Installing and servicing heating/cooling equipment can be hazardous due to the electrical components. Only trained and licensed
personnel should install, repair, or service heating/cooling equipment. Unlicensed service personnel can perform basic maintenance functions such as cleaning and replacing the air filters. When
working on heating/cooling equipment, the precautions in the manuals and on the labels attached to the unit and other safety precautions must be observed as applicable.
CAUTION
These air handlers should be transported & handled in an upright,
upflow position. Failure to do so may result in unit damage and personal injury. Configuration conversions should be done at site of
installation.
12. These instructions cover minimum requirements and conform to
existing national standards and safety codes. In some instances
these instructions exceed certain local codes and ordinances,
especially those who have not kept up with changing residential
and non-HUD modular home construction practices. These instructions are required as a minimum for a safe installation.
FIGURE 1: Return Air Duct Attachment
INSPECTION
As soon as a unit is received, it should be inspected for possible damage during transit. If damage is evident, the extent of the damage
should be noted on the carrier’s freight bill. A separate request for
inspection by the carrier’s agent should be made in writing. Also, before
installation the unit should be checked for screws or bolts, which may
have loosened in transit. There are no shipping or spacer brackets
which need to be removed.
It should be verified that the appropriate coil and accessories (such as
heater kit and thermostatic expansion valve kit) are available as
required. Installation of these accessories or field conversion of the unit
should be accomplished before setting the unit in place or connecting
any wiring, duct work or piping.
SECTION III: UNIT INSTALLATION
UNIT SIZING
1. The size of the unit should be based on an acceptable heat loss or
gain calculation for the structure. The ACCA – Manual J or other
approved methods may be used. Reference Figure 5 and Table 1.
2. Only connect the air handler to a duct system which has an external
static pressure within the allowable range.
3. Airflow must be within the minimum and maximum limits approved
for electric heat, indoor coils and outdoor units.
Entering Air Temperature Limits
Wet Bulb Temp.°FDry Bulb Temp. °F
Min.Max.Min.Max.
57726595
4. When an air handler is installed so that supply ducts carry air circulated by the air handler to areas outside the space containing the air
handler, the return air shall also be handled by duct(s) sealed to the
air handler casing and terminating in the space to be cooled/
heated.
5. Refer to the unit rating plate for the air handler model number, and
then see the dimensions page of this instruction for supply air plenum dimensions. The plenum must be installed according to the
instructions.
6. The installer must check available supply power and verify that it is
within the normal operating voltage range for the unit. The acceptable voltage range for these units is as follows:
Air Handler Voltage
208-230-1-60187-253
1. Rated in accordance with ARI Standard 110, utilization range “A”.
Normal Operating
1
Voltage Range
2Johnson Controls Unitary Products
CLEARANCES
A0346-001
UPFLOW
DOWNFLOW
HORIZONTAL RIGHT
HEAT
HORIZONTAL LEFT
HEAT
HEAT
HEAT
HEAT
A0347-001
OUTER TIE PLATE (3 PLACES)
AIR
HANDLER
COIL
NOTE:
External tie plates
are installed on both
sides and the back
Clearances must be taken into consideration, and provided for as
follows:
1. Maintenance and servicing access - minimum 36” from front of unit
recommended for blower motor / coil replacement.
2. The duct work connected to this unit is designed for zero clearance
to combustible materials.
3. A combustible floor base accessory is available for downflow applications of this unit, if required by local code.
LOCATION
Location is usually predetermined. Check with owner’s or dealer’s
installation plans. If location has not been decided, consider the
following in choosing a suitable location:
1. Select a location with adequate structural support, space for service
access, and clearance for air return and supply duct connections.
2. Using hanging brackets to wall mount this single piece air handler
unit is not recommended.
3. Normal operating sound levels may be objectionable if the air handler is placed directly over some rooms such as bedrooms, study,
etc.
4. If using the air handler unit with an indoor coil, select a location that
will permit installation of condensate line to open drain or outdoors
allowing condensate to drain away from structure.
NOTICE
The primary and secondary drain line must be trapped to allow proper
drainage of condensate water. The secondary drain line should be
piped to a location that will give the occupant a visual warning that the
primary drain is clogged. If the secondary drain line is not used, it
must be capped.
5. When an indoor coil is installed in an attic or above a finished ceiling, an auxiliary drain pan should be provided under the air handler
as is specified by most local building codes.
6. Proper electrical supply must be available.
7. If unit is located in an area of high humidity (i.e. an unconditioned
garage or attic), nuisance sweating of casing may occur. On these
installations, unit duct connections and other openings should be
properly sealed, and a wrap of 2” fiberglass insulation with vinyl
vapor barrier should be used.
1190828-UIM-G-0915
FIGURE 2: Typical Installation
AIR HANDLER AND COIL UPFLOW, DOWNFLOW,
AND HORIZONTAL POSTIONS
1.Apply neoprene gasket to the return air end of air handler.
2.Attach three tie plates to external sides and back of air handler
casing using screws. Refer to Figure 3.
3.Position blower casing over appropriate coil opening (depending
on configuration). Refer to Figure 2.
4.Attach the three tie plates to coil casing using screws. Refer to Figure 3.
5.Remove coil access panel.
6.Slide the coil out of the coil cabinet, and set coil to the side.
7.Locate 2” wide foam gasket.
8.Apply foam gasket over the air handler and coil mating seams on
the interior of both unit sides and back. Refer to Figure 4.
9.Slide the coil into the housing, and install the coil access panel.
AIR HANDLER CONFIGURATION
These air handler units are supplied ready to be installed in an upflow,
downflow, horizontal right or horizontal left position. Refer to Figure 2.
The unit requires no conversion procedures.
SUSPENSION SUPPORT LOCAT IONS FOR HORIZONTAL RIGHT
2”
1-1/2”
MIN. 1-1/2” x 1-1/2”
Angle Recommended
length 26” minimum
with 2” clearance on both
sides of Air Handler
MIN. 3/8”
THREADED ROD
H
1”
1-1/2”
A0348-002
X
H
SUSPENSION SUPPORT LOCAT IONS FOR HORIZONTAL LEFT
X
TIE PLATE
SECTION IV: DUCT WORK AND
CONNECTIONS
WARNING
Use only 1/2” screws to connect duct work to bottom of unit.
Air supply and return may be handled in one of several ways best
suited to the installation. Upflow, horizontal or downflow applications
may be used.
The vast majority of problems encountered with heating and cooling
systems can be linked to improperly designed or installed duct systems.
It is therefore highly important to the success of an installation that the
duct system be properly designed and installed.
When installing a central air return grille in or near the living space, it is
advisable to design the duct work so that the grille is not in direct line
with the opening in the unit. One or two elbows and acoustical duct liner
assures a quieter system. Operation where return air duct is short or
where sound may be a problem, acoustical duct liner should be used
inside the duct. If electric heat is used, non-flammable material must be
used.
Use flexible duct connectors to minimize the transmission of vibration/
noise into the conditioned space. Never fasten duct work directly to the
structure.
WARNING
Do not bring in return air from a location which could introduce hazardous substances into the airflow.
Use 1/2” screws to connect duct work to cabinet. If pilot holes are
drilled, drill only through field duct and unit flange.
HORIZONTAL SUSPENSION
For suspension of these units in horizontal applications, it is recommended to use angle steel support brackets with threaded rods, supporting the units from the bottom, at the locations shown in Figure 6.
CAUTION
This unit is not designed for non-ducted (freeblow) applications. Do
not operate without duct work attached to unit.
Equipment should never be operated without filters.
Insulation of duct work is a must where it runs through an unheated
space during the heating season or through an uncooled space during
the cooling season. The use of a vapor barrier is recommended to
prevent absorption of moisture from the surrounding air into the
insulation.
The supply air duct should be properly sized by use of a transition to
match unit opening. All ducts should be suspended using flexible
hangers and never fastened directly to the structure.
Duct work should be fabricated and installed in accordance with local
and/or national codes. This includes the standards of the National Fire
Protection Association for Installation of Air-Conditioning and
Ventilating Systems, NFPA No. 90B. Duct systems should be designed
in accordance with the Air Conditioning Contractors of America (ACCA)
– Manual D.
Three duct flanges are provided to assist in positioning and attaching
duct work to the air handler. These flanges are included in the unit parts
bag. With the screws from the parts bag, install one of the duct flanges.
Duct flanges have holes on both legs with one leg longer than the other.
The longer leg can be used to mate against the air handler so that
different thicknesses of duct board can be made flush with the outer
surface of the air handler. Repeat the procedure for the other two
flanges. Refer to Figure 7. If the flanges are not used, they may be
discarded.
FIGURE 7: Duct Attachment
CAUTION
Use 1/2” screws to connect duct work to unit. Longer screws will
pierce the drain pan and cause leakage. If pilot holes are drilled, drill
only though field duct and unit bottom duct flange.
Duct work that is not designed to match the supply air opening can
cause turbulence inside the plenum. This turbulence can change the air
flow patterns across the electric heater limit switches. If the factory
suggested transition cannot be fabricated, it is recommended that a
block off plate (approximately 8" high and running the full width of the
plenum) be attached to the supply opening. Refer to Figure 8 as a
visual aid. The use of this block off plate will enable better air circulation
across the limit switches.
AIR FILTERS
Return air filters are required and must be field supplied. Filtration must
be accomplished external to the unit.
.
CAUTION
Equipment should never be operated without filters.
SECTION V: ELECTRIC HEATER
INSTALLATION
If the air handler requires electric heat, install the electric heat kit
according to the installation instructions included with the kit. After
installing the kit, mark the air handler nameplate to designate the heater
kit that was installed. If no heater is installed, mark the name plate
appropriately to indicate that no heat kit is installed.
Use only 6HK Revision C or later heater kits, as listed on air handler
name plate and in these instructions. Use data from Tables 4 through 9
for information on required minimum motor speed tap to be used for
heating operation, maximum over-current protection device required as
listed for combination of air handler and heater kit.
FIGURE 8: Duct Work Transition
UNIT CONNECTIONS
There are several ways to handle the supply and return air duct
connections. The location and sizing of the connections depends on the
situation and the method best suited to the installation. Upflow,
horizontal or downflow applications may be used.
The supply air duct should be properly sized by use of a transition to
match unit opening. Refer to Table 1 for air handler unit inlet and outlet
dimensions.
Power may be brought into the unit through the supply air end of the
unit (top left when unit is vertical) or the left side panel. Use the hole
appropriate to the unit’s orientation in each installation to bring conduit
from the disconnect. The power lead conduit should be terminated at
the electrical control box. Refer to Tables 3, 8 and 9 to determine
proper wire sizing. Refer to the latest edition of the National Electric
Code or in Canada the Canadian electrical Code and local codes to
determine correct wire sizing. To minimize air leakage, seal the wiring
entry point at the outside of the unit.
All electrical connections to air handlers must be made with copper
conductors. Direct connection of aluminum wiring to air handlers is
not approved.
If aluminum conductors are present, all applicable local and national
codes must be followed when converting from aluminum to copper
conductors prior to connection to the air handler.
The chosen conductor and connections all must meet or exceed the
amperage rating of the overcurrent protector (service disconnect or
fuse) in the circuit.
Additionally, existing aluminum wire within the structure must be sized
correctly for the application according to National Electric Code and
local codes. Caution must be used when sizing aluminum rather than
copper conductors, as aluminum conductors are rated for less current
than copper conductors of the same size.
FIGURE 10: Line Power Connections
Johnson Controls Unitary Products7
1190828-UIM-G-0915
FACTORY WIRED TO
TRANSFORMER
FACTORY WIRED TO
FAN MOTOR RELAY
TERMINAL ON
CONTROLBOARD
PUR
PUR
HIGH
MED
LOW
GND.
230 VOLT
BLOWER MOTOR
CAP
BRN
BLK
A0342-001
PSCSTANDARD MOTOR
FACTORY WIRED TO
TRANSFORMER
FACTORY WIRED TO
FAN MOTOR RELAY
TERMINAL ON
CONTROLBOARD
PSCSTANDARD MOTOR
ALTERNATE CONNECTION
AP60, RFCX60, MP20
ALL OTHER AIR HANDLER
GND.
CAP
BRN
BLK
H M L
RC
PRP
PRP
230 VOLT
BLOWER
MOTOR
SECTION VII: LOW VOLTAGE CONTROL
CONNECTIONS
The 24 volt power supply is provided by an internally wired low voltage
transformer which is standard on all models. if the unit is connected to a
208 volt power supply, the low voltage transformer must be rewired to
the 208 volt tap. See the unit wiring diagram.
Field supplied low voltage wiring can exit the unit through the top right
(when unit is vertical upflow) or the right side panel. Refer to Figure 5.
Remove desired knockout and pierce foil faced insulation to allow
wiring to pass through. Use as small of a hole as possible to minimize
air leakage. Install a 7/8” plastic bushing in the selected hole and keep
low voltage wiring as short as possible inside the control box.
To further minimize air leakage, seal the wiring entry point at the
outside of the unit.
The field wiring is to be connected at the pigtails supplied with the air
handler. Refer to Figures 13 and 14 for system wiring.
NOTICE
All wiring must comply with local and national electrical code requirements. Read and heed all unit caution labels.
NOTICE
It is possible to vary the amount of electric heat turned on during the
defrost cycle of a heat pump. Standard wiring will only bring on the
first stage of electric heat during defrost. See Table 7 for additional
information on heat during defrost cycle.
SECTION VIII: BLOWER SPEED
CONNECTIONS
Adjust blower motor speed to provide airflow within the minimum and
maximum limits approved for indoor coil, electric heat and outdoor unit.
Speed tap adjustments are made at the motor terminal block. Airflow
data is shown in Table 10.
Connect motor wires to motor speed tap receptacle for speed desired.
See unit wiring label for motor wiring details.
Blower Speed Connections
FIGURE 11: Blower Speed Connections
SECTION IX: UNIT DATA
TABLE 2:
ModelsMP08BMP12BMP14DMP16CMP20D
Blower - Diameter x Width
Motor
Voltage
Full Load Amps @230V
Filter
Shipping / Operating Weight (lbs.)
1. Field supplied.
TABLE 3:
1. FLA = Full Load Amps
2. MOP = Maximum Overcurrent Protection device; must be HACR type service disconnect or time delay fuse. Refer to the latest edition of the National Electric Code or in Canada
8Johnson Controls Unitary Products
Physical and Electrical Data - Cooling Only
10 x 810 x 810 x 1010 x 1010 x 10
HP
Nominal RPM
1/4 HP1/2 HP1/2 HP1/2 HP1 HP
8501085108510401007
208/230208/230208/230208/230208/230
1.42.62.82.94.1
TypeDISPOSABLE OR PERMANENT
Size
1
Bottom Rack Kit
Permanent Type Kit
16 x 20 x 116 x 20 x 122 x 20 x 120 x 20 x 122 x 20 x 1
1. (0,1) - 0 = no service disconnect OR 1 = with service disconnect.
2. (1,2) - 1 = with service disconnect, no breaker jumper bar OR 2 = with service disconnect & breaker jumper bar.
Low
Low
TABLE 5: KW & MBH Conversions - For Total Power Input Requirement
For a power distribution voltage that is different than the provided nominal voltage, multiply the kW and MBH data from the table by the conversion
factor in the following table.
DISTRIBUTION POWERNOMINAL VOLTAGECONVERSION FACTOR
1. (0,1) - maybe 0 (no service disconnect) or 1 (with service disconnect).
2. (1,2) maybe 1 (with service disconnect, no breaker jumper bar) or 2 (with service disconnect & breaker jumper bar).
3. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse. Refer to the latest edition of the National Electric Code or in
Canada the Canadian electrical Code and local codes to determine correct wire sizing.
10Johnson Controls Unitary Products
1190828-UIM-G-0915
TABLE 8:
Electrical Data For Multi-source Power Supply: 208/230-1-60
1. (0,1) - maybe 0 (no service disconnect) or 1 (with service disconnect).
2. (1,2) maybe 1 (with service disconnect, no breaker jumper bar) or 2 (with service disconnect & breaker jumper bar).
3. MOP = Maximum Overcurrent Protection device; must be HACR type circuit breaker or time delay fuse. The 1st Circuit includes the blower motor amps. Refer to the
latest edition of the National Electric Code or in Canada the Canadian electrical Code and local codes to determine correct wire sizing.
Johnson Controls Unitary Products11
1190828-UIM-G-0915
TABLE 9:
Air Flow Data (CFM)
MP ModelsCM Models
1
Blower
Motor Speed
0.100.200.300.400.500.600.70
External Static Pressure (in. wc.)
208 Volts
High975965953926889
CM18B
MP08B
CM24B
Medium729719700643614
Low576561501455407
High950944927907876
Medium713703686656591
Low560546511448398
High14591410134212751200
CM30B
MP12B
CM36B
Medium12411210115611101044
Low992965940911867
High14871438138313151245
Medium12261202116611191079
Low959950925892866
High19441891183217671693
CM30D
Medium15181494147014251377
Low12081198118011551019
High19671920184817811710
MP14D
CM36D
Medium15201508148614461398
Low12071202117611561028
High19491912185417911715
CM42D
Medium15381521149214581406
Low11971190117911281052
High17761709164615731491
CM36C
Medium15911545148614241300
Low13601331128511941097
High17461687161615361386
MP16C
CM42C
Medium15641507145113881246
Low13391301125811361052
High18171756167815991511
CM48C
Medium16731618154214771349
Low14481419136212811136
High20351994192218581781
CM42D
Medium18491819177116941650
Low16791654162415781526
High20612001193718711780
CM48D
MP20D
CM60D
Medium18671835178617271653
Low16781657161515721518
High20211979189718331751
Medium18521811175816971639
Low16461630159615551491
High18671832178417291652
CM64D
Medium14981484144314111361
Low11281122111510961020
1. Air handler units have been tested to UL 1995 / CSA 22.2 standards up to 0.50" wc. external static pressure.
Dry coil conditions only, tested without filters.
For optimal performance, external static pressures of 0.2" to 0.5" are recommended. Applications above 0.5" are not recommended.
1. Air handler units have been tested to UL 1995 / CSA 22.2 standards up to 0.50" wc. external static pressure.
Dry coil conditions only, tested without filters.
For optimal performance, external static pressures of 0.2" to 0.5" are recommended. Applications above 0.5" are not recommended.
Take measurements here if
using a filter rack.
Return air static must be
taken between the filter and
indoor coil.
A0395-001
SECTION X: MAINTENANCE
Filters must be cleaned or replaced when they become dirty. Inspect at
least once per month. The frequency of cleaning depends upon the
hours of operation and the local atmospheric conditions. Clean filters
keep unit efficiency high.
COIL CLEANING
If the coil needs to be cleaned, it should be cleaned with water.
LUBRICATION
The bearings of the blower motor are permanently lubricated.
CONDENSATE DRAINS
During the cooling season check the condensate drain lines to be sure
that condensate is flowing from the primary drain but not from the
secondary drain. If condensate ever flows from the secondary drain the
unit should be promptly shut off and the condensate pan and drains
cleaned to insure a free flowing primary drain.
SECTION XI: AIR SYSTEM ADJUSTMENT
To check the Cubic Feet per Minute (CFM), measure external duct
static using a manometer and static pressure tips. To prepare coil for
static pressure drop measurements run the fan only to assure a dry coil.
NOTICE
Refer to Table 10 for coil Air Flow Data of Cubic Feet Per Minute
(CFM). Run the fan on the highest speed to be used.
Drill 2 holes, one 12” away from the air handler in the supply air duct
and on 12” away from the air handler in the return air duct (before any
elbows in the duct work). Insert the pressure tips, and energize the
blower motor. See Table 10 to determine the air flow, and make the
necessary adjustments to keep the CFM within the airflow limitations of
the coil.
EXTERNAL DUCT STATIC
Measure the supply air static pressure. Record this positive number.
Measure the return air static pressure. Record this negative number.
Treat the negative number as a positive, and add the two number s together to determine the total external system static pressure. If a filter
rack is installed on the return air end of the air handler or indoor coil section, make sure to measure the return air duct static between the filter
and the indoor coil.
FIGURE 12: Duct Static Measurements
14Johnson Controls Unitary Products
SECTION XII: WIRING DIAGRAM
BLOWER
MOTOR
RC
XFORMER
BLK
RED/WHT
RED/
WHT
PRP
PRP
BLU/WHT
BLU/WHT
GRN FAN
BRN
WHT
ORG
RED 24V (HOT)
BLU 24V (COM)
ELECTRIC HEAT
1st STAGE
AUXILIARY HEAT
2nd STAGE
BRN
GRN
PRP
BLK
H M L
EQUIPMENT
GROUND
BLK
RED/WHT
{
208-240 VAC 60HZ
1 PHASE SUPPLY
24V
240V
COM
208V
XFORMER
BLOWER
MOTOR
N.O.
N.C.
COM
BLOWER
CONTROL
RELAY
RED
GRN
BLU
WHT
BRN
BLOWER CONTRL COIL
USE COPPER CONDUCTORS ONLY.
IF ALUMINUM CONDUCTORS ARE PRESENT,
ALL APPLICABLE LOCAL AND NATIONAL
CODES MUST BE FOLLOWED.
SEE INSTALLATION INSTRUCTIONS FOR PROPER
LOW VOLTAGE FIELD WIRING CONNECTIONS.
LEGEND
LS - LIMIT SWITCH
SEQ - SEQUENCER
HE - HEATING ELEMENT
FL - FUSIBLE LINK
H - SEQUENCER HEATER
RC - RUN CAPACITOR
RLY - RELAY
H
H
H
H
H
H
5134584-UWD-A-0615
10 KW AND BELOW
RC
13 KW AND ABOVE
XFMR-C
XFMR-R
C
R
G
SPEEDUP
N.O.
N.C.
COM
BLOWER
TIME
DELAY
24V
240V
COM
208V
1
2
3
4
5
6
1
2
3
4
5
6
BLOWER
MOTOR
RC
PRP
BRN
GRN
BLK
H M L
PRP
BLOWER
MOTOR
RC
ALTERNATE
CONNECTION
AP60
RFCX60
MP20
ALT
CONN
L2
L1
L2
L1
HE1
HE2
LS
LS
HE3
LS
H
H
FL
FL
FL
3
1
5
4
SEQ2
SEQ1
RED/WHT
EQUIPMENT
GROUND
YEL
BRN
YEL
BLK
RED
BRN
WHT
BLU
PRP
BLU
RED
BLU
BLU
HE4
LS
FL
H
H
3
1
5
4
BLU
BLK
BLU
L2
L1
RED/WHT
EQUIPMENT
GROUND
YEL
BLK
WHT
BLU
PRP
YEL
BLU
HE1
LS
FL
WHEN INSTALLING HEATER KIT, BE SURE THE BLOWER SPEED IS
SET TO THE SPEED SPECIFIED FOR THE AIR HANDLER/HEATER KIT
COMBINATION ON THIS UNIT'S INSTALLATION INSTRUCTIONS.