Bard H24AA-A, H42AA-A, H48AA-A, H60AA-A, H36AA-A Installation Instructions Manual

INSTALLATION INSTRUCTIONS

WALL-MOUNTED PACKAGED

AIR CONDITIONER

Models:

H24AA-A
H36AA-A
H42AA-A
H48AA-A
H60AA-A

H24LA-A
H36LA-A
H42LA-A
H48LA-A
H60LA-A

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

www.bardhvac.com

Manual: 2100-647
Supersedes: NEW
Date: 9-3-15

Page 1 of 28

CONTENTS

Getting Other Information and Publications .... 3

Wall Mount General Information .........................4

Air Conditioner Wall Mount Model Nomenclature ....... 4

Shipping Damage ................................................... 4

General .................................................................. 4

Duct Work .............................................................. 5

Filters .................................................................... 5

Condensate Drain .................................................. 5

Installation ............................................................... 6

Wall Mounting Information ...................................... 6

Mounting the Unit .................................................. 6

Minimum Clearances .............................................. 6

Clearances Required ............................................... 6

Wiring – Main Power ............................................. 13

Wiring – Low Voltage Wiring ................................... 14

Dirty Filter Switch and Relay .................................. 14

Economizer Fail Time Delay Relay .......................... 14

Start Up ................................................................... 15

General ................................................................ 15

Topping Off System Charge .................................... 15

Safety Practices.................................................... 15

Important Installer Note ........................................ 15

High Pressure and Low Pressure Switches ............... 16

Condenser Fan Operation ...................................... 16

Service Hints........................................................ 16

Sequence of Operation .......................................... 16

Compressor Control Module ................................... 16

Pressure Service Ports ........................................... 17

Service ..................................................................... 18

Fan Blade Setting Dimensions ............................... 18

Removal of Fan Shroud ......................................... 18

R410A Refrigerant Charge ..................................... 18

Figures

Figure 1 Unit Dimensions .................................. 7

Figure 2A H24 Mounting Instructions ................... 8

Figure 2B H36 Mounting Instructions ................... 9

Figure 2C H42, 48, 60 Mounting Instructions ..... 10

Figure 3 Electric Heat Clearance ...................... 11

Figure 4 Wall Mounting Instructions ................. 12

Figure 5 Wall Mounting Instructions ................. 12

Figure 6 Common Wall Mounting Installations ... 13

Figure 7 Fan Blade Setting .............................. 18

Figure 8A H***A Wiring Diagram – Top ............... 26

Figure 8B H***A Wiring Diagram – Bottom .......... 27

Figure 9 H***A Low Voltage Diagram for Unit

and MV Connections ........................... 28

Tables

Table 1 Sequence of Operation ....................... 17

Table 2 Fan Blade Dimension ......................... 18

Table 3 Cooling Pressure ................................ 19

Table 4A Electrical Specifications H**A Series ... 20
Table 4B Electrical Specifications H**L Series ... 20

Table 5 Recommended Airflow ........................ 21

Table 6 Indoor Blower Performance ................. 21

Table 7 Max ESP of Operation Elec Heat Only .. 21

Table 8 Electric Heat ..................................... 21

Table 9 Optional Accessories .......................... 22

Table 10 Vent and Control Options .................... 22

Table 11 Unit Low Voltage Terminal Connection

Chart – MV Series Controller ............... 23

Table 12 Unit Low Voltage Terminal Connection

Chart – MC Series Controller ............... 24

Table 13 Unit Low Voltage Terminal Connection

Chart – Cooling/Heating Thermostat ..... 25

Manual 2100-647
Page 2 of 28

GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help when installing the
furnace. They can usually be found at the local library
or purchased directly from the publisher. Be sure to
consult the current edition of each standard.

National Electrical Code ...................... ANSI/NFPA 70

Standard for the Installation ..............ANSI/NFPA 90A

of Air Conditioning and Ventilating Systems

Standard for Warm Air .......................ANSI/NFPA 90B

Heating and Air Conditioning Systems

Load Calculation for ......................... ACCA Manual J

Residential Winter and Summer Air Conditioning

Duct Design for Residential ............... ACCA Manual D

Winter and Summer Air Conditioning and Equipment
Selection

For more information, contact these
publishers:

ACCA Air Conditioning Contractors of America

1712 New Hampshire Ave. N.W.
Washington, DC 20009
Telephone: [phone]
Fax: [phone]

ANSI American National Standards Institute
11 West Street, 13th Floor
New York, NY 10036
Telephone: [phone]
Fax: [phone]

ASHRAE American Society of Heating, Refrigeration
and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E.
Atlanta, GA 30329-2305
Telephone: [phone]
Fax: [phone]

NFPA National Fire Protection Association

Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: [phone]
Fax: [phone]

Manual 2100-647
Page 3 of 28

WALL MOUNT GENERAL INFORMATION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

H 42 A 4 – A 05 Y P X X X J

MODEL SERIES

CAPACITY

24 – 2 Ton
36 – 3 Ton
42 – 3½ Ton
48 – 4 Ton
60 – 5 Ton

A – Right Hand Air Conditioner
L – Left Hand Air Conditioner

!

WARNING

REVISIONS

VOLTS & PHASE

A – 230/208/60/1

VENTILATION OPTIONS

B – Blank-Off Plate (No Ventilation)
Y – 100% Economizer Temperature
Z – 100% Economizer Enthalpy

Electrical shock hazard.

Have a properly trained individual perform
these tasks.

Failure to do so could result in electric shock
or death.

KW

CONTROL MODULES

(See Spec. Sheet)

COIL OPTIONS

COLOR OPTIONS

X – Beige (Standard)
1 – White
4 – Buckeye Gray
5 – Desert Brown
6 – Dark Bronze
A – Aluminum
S – Stainless Steel

FILTER OPTIONS

P – 2 inch Pleated MERV 8

!

CAUTION

X – Standard
1 – Phenolic Coated Evaporator
2 – Phenolic Coated Condenser
3 – Phenolic Coated Evaporator
and Condenser

OUTLET OPTIONS

X – Front (Standard)

Cut hazard.

Wear gloves to avoid contact with sharp
edges.

Failure to do so could result in personal injury.

SHIPPING DAMAGE

Upon receipt of equipment, the carton should be
checked for external signs of shipping damage. If
damage is found, the receiving party must contact
the last carrier immediately, preferably in writing,
requesting inspection by the carrier’s agent.

GENERAL

The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians.

The refrigerant system is completely assembled and
charged. All internal wiring is complete.

The unit is designed for use with or without duct work.
Flanges are provided for attaching the supply and
return ducts.

These instructions explain the recommended method
to install the air cooled self-contained unit and the
electrical wiring connections to the unit.

These instructions and any instructions packaged with
any separate equipment required to make up the entire
air conditioning system should be carefully read before
beginning the installation. Note particularly “Starting
Procedure” and any tags and/or labels attached to the
equipment.

While these instructions are intended as a general
recommended guide, they do not supersede any
national and/or local codes in any way. Authorities
having jurisdiction should be consulted before the
installation is made. See Page 3 for information on
codes and standards.

Size of unit for a proposed installation should be based
on heat loss calculation made according to methods of
Air Conditioning Contractors of America (ACCA). The
air duct should be installed in accordance with the
Standards of the National Fire Protection Association
for the Installation of Air Conditioning and Ventilating
Systems of Other Than Residence Type, NFPA No.
90A, and Residence Type Warm Air Heating and Air
Conditioning Systems, NFPA No. 90B. Where local
regulations are at a variance with instructions, installer
should adhere to local codes.

Manual 2100-647
Page 4 of 28

DUCT WORK

FILTERS

All duct work, supply and return, must be properly
sized for the design airflow requirement of the
equipment. Air Conditioning Contractors of America
(ACCA) is an excellent guide to proper sizing. All duct
work or portions thereof not in the conditioned space
should be properly insulated in order to both conserve
energy and prevent condensation or moisture damage.

Refer to Table 5 for maximum static pressure available
for duct design.

Design the duct work according to methods given by
the Air Conditioning Contractors of America (ACCA).
When duct runs through unheated spaces, it should be
insulated with a minimum of one inch of insulation.
Use insulation with a vapor barrier on the outside of the
insulation. Flexible joints should be used to connect
the duct work to the equipment in order to keep the
noise transmission to a minimum.

For the H Model Series 36-60, a 1/4" clearance to
combustible material for the first 3' of duct attached
to the outlet air frame is required. See Wall Mounting
Instructions and Figures 2A-C and Figure 3 for further
details.

Ducts through the walls must be insulated and all
joints taped or sealed to prevent air or moisture
entering the wall cavity.

A 2" pleated MERV 8 is standard with each unit. The
filter slides into position making it easy to service. This
filter can be serviced from the outside by removing the
filter access panel.

CONDENSATE DRAIN

A plastic drain hose extends from the drain pan at
the top of the unit down to the unit base. There are
openings in the unit base for the drain hose to pass
through. In the event the drain hose is connected to
a drain system of some type, it must be an open or
vented type system to assure proper drainage.

Some installations may not require any return air duct.
A metallic return air grille is required with installations
not requiring a return air duct. The spacing between
louvers on the grille shall not be larger than 5/8".

Any grille that meets with 5/8" louver criteria may
be used. It is recommended that Bard Return Air
Grille Kit RG2W thru RG5W or RFG2W thru RFG5W
be installed when no return duct is used. Contact
distributor or factory for ordering information. If using
a return air filter grille, filters must be of sufficient size
to allow a maximum velocity of 400 fpm.

NOTE: If no return air duct is used, applicable
installation codes may limit this cabinet to
installation only in a single story structure.

Manual 2100-647
Page 5 of 28

INSTALLATION

WALL MOUNTING INFORMATION

1. Two holes for the supply and return air openings
must be cut through the wall as shown in Figure 2.

2. On wood frame walls, the wall construction must
be strong and rigid enough to carry the weight of
the unit without transmitting any unit vibration.

3. Concrete block walls must be thoroughly inspected
to insure that they are capable of carrying the
weight of the installed unit.

MOUNTING THE UNIT

1. These units are secured by wall mounting brackets
which secure the unit to the outside wall surface at
both sides. A bottom mounting bracket, attached
to skid for shipping, is provided for ease of
installation, but is not required.

2. The unit itself is suitable for 0 clearance, but the
supply air duct flange and the first 3' of supply
air duct require a minimum of 1/4" clearance
to combustible material for Model Series H36,
H42, H48 and H60. However, it is generally
recommended that a 1" clearance is used for
ease of installation and maintaining the required
clearance to combustible material. See Figures
2A-C for details on opening sizes.

Clearances Required for Service Access and
Adequate Condenser Airflow

LEFT

MODELS

H24A, H36A 15" 20" 10'

H24L, H36L 20" 15" 10'

H42A, H48A, H60A 20" 20" 10'

H42L, H48L, H60L 20" 20" 10'

NOTE: For side-by-side installation of two H**A models there

must be 20" between units. This can be reduced to 15"
by using a H**L model (left side compressor and controls)
for the left unit and H**A (right side compressor and
controls) for right unit.

SIDE

RIGHT

SIDE

3. Locate and mark lag bolt locations and bottom
mounting bracket location (see Figure 2).

4. Mount bottom mounting bracket.

5. Hook top rain flashing, attached to front-right
corner of supply flange for shipping, under back
bend of top.

Position unit in opening and secure with fasteners

6.
sufficient for the application such as 5/16 lag bolts;
use 7/8" diameter flat washers on the lag bolts.

7. Secure rain flashing to wall and caulk across entire
length of top (see Figure 2).

DISCHARGE

SIDE

Minimum Clearances Required to
Combustible Materials

MODELS

H24A, H24L 0" 0"

H36A, H36L 1/4" 0"

H42A, H42L
H48A, H48L
H60A, H60L

!

WARNING

Failure to provide the 1/4" clearance
between the supply duct and a combustible

surface for the rst 3' of duct can result in
re causing damage, injury or death.

SUPPLY AIR DUCT

FIRST 3'

1/4" 0"

CABINET

8. For additional mounting rigidity, the return air
and supply air frames or collars can be drilled
and screwed or welded to the structural wall itself
(depending upon wall construction). Be sure to
observe required clearance if combustible wall.

9. On side-by-side installations, maintain a minimum
of 20" clearance on right side to allow access to
control panel and heat strips, and to allow proper
airflow to the outdoor coil. Additional clearance
may be required to meet local or national codes.

10. Care should be taken to ensure that the
recirculation and obstruction of condenser
discharge air does not occur. Recirculation of
condenser discharge air can be from either a
single unit or multiple units. Any object such as
shrubbery, a building or other large object can
cause obstructions to the condenser discharge
air. Recirculation or reduced airflow caused by
obstructions will result in reduced capacity,
possible unit pressure safety lockouts and reduced
unit service life.

For units with blow through condensers, it is

recommended there be a minimum distance of 10'
between the front of the unit and any barrier or 20'
between the fronts of two opposing (facing) units.

Manual 2100-647
Page 6 of 28

H60A, L

FIGURE 1

Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)

WIDTH

DEPTH

MODEL

H24A, L 33.300 17.125 74.563 7.88 19.88 11.88 19.88 35.00 10.88 29.75 20.56 30.75 32.06 33.25 31.00 2.63 34.13 26.06 10.55 4.19 12.00 9.00

H36A, L 38.200 17.125 74.563 7.88 27.88 13.88 27.88 40.00 10.88 29.75 17.93 30.75 32.75 33.25 31.00 2.75 39.13 26.75 9.14 4.19 12.00 9.00

H42A, L
H48A, L

H60A, L 42.075 22.432 93.000 9.88 29.88 15.88 29.88 43.88 13.56 37.00 30.00 40.81 35.06 42.81 40.56 3.37 43.00 31.00 10.00 1.44 16.00 10.00

(W)

42.075 22.432 84.875 9.88 29.88 15.88 29.88 43.88 13.56 31.66 30.00 32.68 26.94 34.69 32.43 3.37 43.00 23.88 10.00 1.44 16.00 1.88

HEIGHT

(D)

All dimensions are in inches. Dimensional drawings are not to scale.

SUPPLY RETURN

(H)

A B C B E F G I J K L M N O P Q R S T

H**A
RIGHT
UNIT

5.88

Built In

Rain Hood

W

Filter Access Panel

F

G

Ventilation Air

Condenser

Economizer

1

Standard
flush vent
door for
non-Econ.
models

Air Outlet

4° Pitch

C. Breaker/
Disconnect

Access Panel

(Lockable)

Economizer
Air Intake Hood

Controls

7"

Low Voltage

High Voltage

Heater

Access

Panel

Electric

Heat

Electrical
Entrance

Electrical
Entrance

Front View

D

Cond.

Air

Inlet

Side View

J

Drain

2.13
Side Wall

A

Mounting

Brackets

(Built In)

I

Top Rain

Flashing
Shipping
Location

Optional

C

H

Electrical

Entrances

K

L

M

P

N

Q

 Not used when EWM economizer is installed. Filter access is through the EWM hood.

Electric
Heat

Heater
Access
Panel

C. Breaker/
Disconnect
Access Panel
(Lockable)

Standard flush

vent door for

non-Econ.

models

Economizer
Air Intake Hood

Economizer
controls
(opposite side)

Low Voltage
Electrical
Entrance

High Voltage
Electrical
Entrance

7"

H**L
LEFT
UNIT

R

S

S

S

S

S

T

Drain

.44

Supply Air Opening

Return Air Opening

Bottom

Installation

Bracket

E
O

B

Back View

Built In
Rain Hood
4° Pitch

Side Wall
Mounting
Brackets
(Built In)

Top Rain

Flashing

Shipping

Location

Optional
Electrical
Entrances

P

Q

2.13

A

I

C

H

K

L

M

N

J

D

Cond.

Air

Inlet

 Not used when EWM economizer is installed. Filter access is through the EWM hood.

E
O

Supply Air Opening

B

Return Air Opening

Back View

W

Filter Access Panel

Ventilation Air

Condenser

Air Outlet

Front ViewSide View

.44

Bottom Installation
Bracket

MIS-3624

1

5.88

MIS-3625

R

S

S

S

S

S

T

F

G

Manual 2100-647
Page 7 of 28

12"

12"

12"

12"

12"

20"

20"

1"

3"

4"

Typ.

8"

20

1

2

"

12"

1"

3

1

8

"

4"

Typ.

5"

7

8

"

3

13

16

"

2" 2"

7

1

16

" 7

1

16

"

NOTES:

RAIN FLASHING

RETURN AIR

HEATER ACCESS

ENTIRE LENGTH OF TOP.

TOP

WALL

OF CAULKING ALONG

PANEL

FOAM AIR SEAL

WALL STRUCTURE

OPENING

TOP FLASHING AT TIME OF INSTALLATION.

THE SIDE MOUNTING FLANGES AND UNDER

DUCT

Wall Opening and Hole Location View Right Side View

SEAL WITH BEAD

IT IS RECOMMENDED THAT A BEAD OF

SILICONE CAULKING BE PLACED BEHIND

SUPPLY AIR

SUPPLIED

Return Opening

Supply Opening

H**A UNIT SHOWN, H**L UNIT

CONTROLS AND HEATER ACCESS

IS ON OPPOSITE (LEFT) SIDE.

MIS-3658

FIGURE 2A

H24AA, H24LA Mounting Instructions

Manual 2100-647
Page 8 of 28

28"

A

C

D

C

12"

12"

12"

12"

12"

5

1

16

"

B

E

14"

4

11

16

" 4

11

16

"

4"

Typ.

2

7

8

"

7

8

"

7

8

"

4"

Typ.

7

8

"

3

1

8

"

SUPPLIED

H*A UNIT SHOWN, H*L UNIT

MIS-3659

SUPPLY AIR

ENTIRE LENGTH OF TOP.

TOP

OF CAULKING ALONG

PANEL

FOAM AIR SEAL

WALL STRUCTURE

RAIN FLASHING

FOUR SIDES OF SUPPLY

AIR DUCT IS REQUIRED

FROM COMBUSTABLE

MATERIALS

NOTES:

1/4" CLEARANCE ON ALL

HEATER ACCESS

TOP FLASHING AT TIME OF INSTALLATION.

THE SIDE MOUNTING FLANGES AND UNDER

SILICONE CAULKING BE PLACED BEHIND

IS ON OPPOSITE (LEFT) SIDE.

OPENING

CONTROLS AND HEATER ACCESS

DUCT

RETURN AIR

Right Side View

SEAL WITH BEAD

IT IS RECOMMENDED THAT A BEAD OF

WALL

Wall Opening and Hole Location View

Return Opening

16 7/84 7/164 5/89 7/829 7/8

17 5/83 11/165 3/88 3/8

28 3/8

EDCBA

COMBUSTIBLE MATERIALS

RECOMMENDED 1" CLEARANCE FROM

REQUIRED DIMENSIONS TO MAINTAIN

COMBUSTIBLE MATERIALS

1/4" MIN. CLEARANCE FROM

REQUIRED DIMENSIONS TO MAINTAIN

Supply Opening

FIGURE 2B

H36AA, H36LA Mounting Instructions

Manual 2100-647
Page 9 of 28

D

16"

16"

16"

16"

16"

1

7

8

"

6

1

2

" 6

1

2

"

2

1

8

"

7

8

"

1"

3"

4"

Typ.

4"

Typ.

6

1

2

"

30"

E

16"

A CC

3

1

8

"

B

Wall Opening and Hole Location View

RETURN AIR

1

REQUIRED DIMENSIONS TO MAINTAIN

1/4" MIN. CLEARANCE FROM

COMBUSTIBLE MATERIALS

REQUIRED DIMENSIONS TO MAINTAIN

29

DUCT

COMBUSTIBLE MATERIALS

A B C DE

30 1/2

10 1/2

6 1/4 1 1/4 29 3/4

32 12 5 1/2

2

NOTES:

WALL STRUCTURE

1

SUPPLY AIR

IT IS RECOMMENDED THAT A BEAD OF

OPENING

Right Side View

RAIN FLASHING

SILICONE CAULKING BE PLACED BEHIND

RECOMMENDED 1" CLEARANCE FROM

THE SIDE MOUNTING FLANGES AND UNDER

TOP FLASHING AT TIME OF INSTALLATION.

TOP.

PANEL

HEATER ACCESS

FOUR SIDES OF SUPPLY

AIR DUCT IS REQUIRED

FROM COMBUSTABLE

WALL

1/4" CLEARANCE ON ALL

MATERIALS

Supply Opening

FOAM AIR SEAL

SUPPLIED

SEAL WITH BEAD

OF CAULKING ALONG

ENTIRE LENGTH OF

TOP

1

Return Opening

MIS-416 E

Dimension is 21" on 95" tall units.

2

Dimension is 10" on T48H1 & T60H1.

2

Dimension is 6" on T48H1 & T60H1.

3

3

FIGURE 2C

Manual 2100-647
Page 10 of 28

H42AA, H42LA, H48AA, H48LA, H60AA, H60LA Mounting Instructions

"

"

FIGURE 3

Electric Heat Clearance

NOTE: SIDE SECTION VIEW OF SUPPLY AIR
DUCT FOR WALL MOUNTED UNIT SHOWING 1/4"
CLEARANCE TO COMBUSTIBLE SURFACES.

!

WARNING

A minimum of 1/4" clearance must be maintained between the
supply air duct and combustible materials. This is required for the

rst 3' of ducting.

It is important to insure that the 1/4" minimum spacing is

maintained at all points.

Failure to do this could result in overheating the combustible
material and may result in a re causing damage, injury or death.

Manual 2100-647
Page 11 of 28

FIGURE 4

DUCT

OPENING

RETURN AIR

SUPPLY AIR

WOOD FRAME WALL INSTALLATION

OPENING

WALL BEFORE

MOUNT ON UNIT

OPENING

BEFORE INSTALLATION

BOTTOM MOUNTING

CONCRETE BLOCK WALL INSTALLATION

BRACKET. MOUNT ON

OPENING

WOOD OR STEEL SIDING

OPENING

INSTALLING UNIT.

RETURN AIR

WALL STRUCTURE

RETURN AIR

SUPPLY AIR

FACTORY SUPPLIED

RAIN FLASHING.

SUPPLY AIR

MIS-548 A

SIDE VIEW

I

A

C

K

E + 1.000

B

1.000

SUPPLY DUCT

OVER FRAME

INTERIOR FINISHED WALL

ALL AROUND DUCT

FRAMING MATERIAL

EXTERIOR FINISH WALL

OPENING

FOR ACTUAL DIMENSIONS.

2 x 4'S, 2 x 6'S &/OR

STRUCTURAL STEEL

ATTACH TO TOP

1.000" CLEARANCE

1.000" CLEARANCE

PLATE OF WALL

C

SEE UNIT DIMENSIONS, FIGURE 2,

OPENING

RETURN DUCT

2 x 6

ATTACH TO BOTTOM

OVER FRAME

PLATE OF WALL

L

THIS STRUCTURAL MEMBER
LOCATED TO MATCH STUD
SPACING FOR REST OF WALL.
A SECOND MEMBER MAY BE
REQUIRED FOR SOME WALLS.

MIS-549 B

ALL AROUND DUCT

Wall Mounting Instructions

FIGURE 5

Wall Mounting Instructions

Manual 2100-647
Page 12 of 28

FIGURE 6

Common Wall Mounting Installations

SUPPLY DUCT MAY BE LOCATED IN AN ATTIC

OR BELOW CEILING RAFTERS AS SHOWN

RAIN

FLASHING

OUTSI DE

WALL

RAFTERS

FINISHED CEI LI NG SURFACE

SUPPLY AIR DUCT
W/ GRILLE

RETURN AI R
OPENI NG W/ GRILLE

FREE AIR FLOW

NO DUCT

WIRING – MAIN POWER

Refer to the unit rating plate for wire sizing information
and maximum fuse or circuit breaker size. Each outdoor
unit is marked with a “Minimum Circuit Ampacity”. This
means that the field wiring used must be sized to carry
that amount of current. Depending on the installed KW
of electric heat, there may be two field power circuits
required. If this is the case, the unit serial plate will so
indicate. All models are suitable only for connection
with copper wire. Each unit and/or wiring diagram will
be marked “Use Copper Conductors Only”. These
instructions must be adhered to. Refer to the National
Electrical Code (NEC) for complete current carrying
capacity data on the various insulation grades of wiring
material. All wiring must conform to NEC and all local
codes.

The electrical data lists fuse and wire sizes (75° C
copper) for all models including the most commonly
used heater sizes. Also shown are the number of field
power circuits required for the various models with
heaters.

RAIN

FLASHING

SUPPLY AIR DUCT

OUTSI DE

WALL

RAFTERS

FINISHED CEI LI NG SURFACE

RETURN AI R
OPENI NG W/ GRILLE

DUCTED SUPPLY
RETURN AT UNIT

The unit rating plate lists a “Maximum Time Delay
Relay Fuse” or circuit breaker that is to be used with
the equipment. The correct size must be used for
proper circuit protection and also to assure that there
will be no nuisance tripping due to the momentary high
starting current of the compressor motor.

The disconnect access door on this unit may be locked
to prevent unauthorized access to the disconnect. To
convert for the locking capability, bend the tab located
in the bottom left-hand corner of the disconnect
opening under the disconnect access panel straight
out. This tab will now line up with the slot in the door.
When shut, a padlock may be placed through the hole
in the tab preventing entry.

See “Start Up” section beginning on page 15 for
important information on three phase scroll compressor
start ups.

See Tables 4A and 4B (page 20) for electrical
specifications.

Manual 2100-647
Page 13 of 28

WIRING – LOW VOLTAGE WIRING

Low Voltage Connection

These units use a 24-volt AC low voltage circuit.
Tables 11 – 13 on pages 23 – 25 show the low voltage
connections for units operated with the MV Series
controller, MC Series controller or connected directly to
a cooling/heating thermostat.

All models are equipped with dual primary voltage
transformers. All equipment leaves the factory wired
on 240V tap. For 208V operation, reconnect from
240V to 208V tap. The acceptable operating voltage
range for the 240 and 208V taps are:

TAP RANGE
240 253 – 216
208 220 – 187

NOTE: The voltage should be measured at the field

power connection point in the unit and while
the unit is operating at full load (maximum
amperage operating condition).

DIRTY FILTER SWITCH AND RELAY

These units include an adjustable dirty filter indicator
switch. This switch if connected to normally closed
contacts on the filter relay wired to terminals 10 and
11 on the low voltage terminal block.

Filter Replacement Procedure

Filter Switch Adjustment

1. Turn off unit power.

2. Remove upper front door. Front screws on unit top
can be removed for ease of removing upper front
door.

3. Locate filter switch on control panel side next to
blower assembly.

4. Remove single phillips head screw on front of
cover. Remove cover.

5. Set pressure by adjusting knob. Do not adjust
knob drastically to avoid nuisance alarm signalw
or non-functionality.

6. Replace cover.

7. Replace upper front door.

8. Turn on unit power.

ECONOMIZER FAIL TIME DELAY RELAY

NOTE: Applies only to units with economizers.

These units employ a time delay relay to open the
nomally closed contacts at terminals 12 and 13 on the
low voltage terminal block. This will activate an alarm
signal on the MV Series controller. The time delay is set
to 500 seconds as a factory default. Avoid adjustment
to settings lower than 180 seconds.

For units not equipped with economizer:

1. Turn off unit power.

2. Remove filter door.

3. Replace filter.

4. Press Reset button.

5. Verify filter light is off.

6. Replace filter door.

7. Turn on unit power.

For units equipped with economizer:

1. Turn off unit power.

2. Remove hood cover.

3. Remove mist eliminator. Inspect and clean if
necessary.

4. Remove filter door.

5. Remove and replace filter.

6. Replace filter door.

7. Replace mist eliminator.

8. Replace hood cover.

Timer to be set here

(500 seconds)

MIS-3054

9. Turn on unit power.

Manual 2100-647
Page 14 of 28

START UP

THESE UNITS REQUIRE R-410A
REFRIGERANT AND POLYOL ESTER OIL.

GENERAL

1. Use separate service equipment to avoid cross

contamination of oil and refrigerants.

2. Use recovery equipment rated for R-410A

refrigerant.

3. Use manifold gauges rated for R-410A (800

psi/250 psi low).

4.

R-410A is a binary blend of HFC-32 and HFC-125.

5. R-410A is nearly azeotropic—similar to R-22 and

R-12. Although nearly azeotropic, charge with
liquid refrigerant.

6. R-410A operates at 40-70% higher pressure than

R-22, and systems designed for R-22 cannot
withstand this higher pressure.

7. R-410A has an ozone depletion potential of zero,

but must be reclaimed due to its global warming
potential.

8. R-410A compressors use Polyol Ester oil.

9. Polyol Ester oil is hygroscopic; it will rapidly absorb

moisture and strongly hold this moisture in the oil.

10. A liquid line dryer must be used; even a deep

vacuum will not separate moisture from the oil.

11. Limit atmospheric exposure to 15 minutes.

12. If compressor removal is necessary, always plug

compressor immediately after removal. Purge with
small amount of nitrogen when inserting plugs.

TOPPING OFF SYSTEM CHARGE

If a leak has occurred in the system, Bard
Manufacturing recommends reclaiming, evacuating
(see criteria above) and charging to the nameplate
charge. If done correctly, topping off the system
charge can be done without problems.

With R-410A, there are no significant changes in the
refrigerant composition during multiple leaks and
recharges. R-410A refrigerant is close to being an
azeotropic blend (it behaves like a pure compound
or single component refrigerant). The remaining
refrigerant charge in the system may be used after
leaks have occurred and then “top-off” the charge by
utilizing the pressure charts on the inner control panel
cover as a guideline.

REMEMBER: When adding R-410A refrigerant, it must
come out of the charging cylinder/tank as a liquid to
avoid any fractionation, and to insure optimal system
performance. Refer to instructions for the cylinder that
is being utilized for proper method of liquid extraction.

!

WARNING

Failure to conform to these practices could

lead to damage, injury or death.

SAFETY PRACTICES

1. Never mix R-410A with other refrigerants.

2. Alwasys use gloves and safety glasses. Polyol
Ester oils can be irritating to the skin, and liquid
refrigerant will freeze the skin.

3. Never use air and R-410A to leak check; the
mixture may become flammable.

4. Do not inhale R-410A; the vapor attacks the
nervous system, creating dizziness, loss of
coordination and slurred speech. Cardiac
irregularities, unconsciousness and ultimate death
can result from breathing this concentration.

5. Do not burn R-410A. This decomposition
produces hazardous vapors. Evacuate the area if
exposed.

6. Use only cylinders rated DOT4BA/4BW 400.

7. Never fill cylinders over 80% of total capacity.

8. Store cylinders in a cool area, out of direct
sunlight.

9. Never heat cylinders above 125°F.

10. Never trap liquid R-410A in manifold sets, gauge
lines or cylinders. R-410A expands significantly
at warmer temperatures. Once a cylinder or line is
full of liquid, any further rise in temperature will
cause it to burst.

IMPORTANT INSTALLER NOTE

For improved start up performance wash the indoor coil
with dishwashing detergent.

Manual 2100-647
Page 15 of 28

HIGH PRESSURE AND LOW PRESSURE
SWITCHES

All H**A/H**L wall mounted air conditioner series
models are supplied with a remote reset for the high
and low pressure switches. The first time the high
or low pressure switches are tripped, they will reset
automatically. If tripped a second time, reset the
switches by turning the thermostat off, then back on
again, resetting the compressor control module.

CONDENSER FAN OPERATION

NOTE: Certain models may be equipped with a
low ambient control (LAC), and if so equipped the
condenser fan motor may have a delayed start until
system refrigerant operating pressure builds up.
After starting, the fan motor may or may not cycle
depending upon ambient conditions. This is normal
operation. The condenser fan motor on 230/208

volt, one and three phase, 60 HZ units is a two-speed
motor that comes factory wired on high speed for peak
performance. If ambient conditions permit, it can be
reconnected to low speed (red wire) for lower sound
level. See unit wiring diagram.

SERVICE HINTS

1. Caution owner/operator to maintain clean air filters
at all times and to not needlessly close off supply
and return air registers. This reduces airflow
through the system, which shortens equipment
service life as well as increasing operating costs.

2. Check all power fuses or circuit breakers to be sure
they are the correct rating.

3. Periodic cleaning of the outdoor coil to permit full
and unrestricted airflow circulation is essential.

SEQUENCE OF OPERATION

COOLING – 24VAC from MV controller at terminal 4 (Y)
pulls in compressor contactor, starting the compressor
and outdoor motor. (See Note under Condenser Fan
Operation if equipped with low ambient control.)
Terminal 9 (G) indoor motor circuit is energized by
the MV controller on any call for cooling operation or
can be energized by manual fan switch on subbase for
constant air circulation. On a call for heating from the
MV controller makes at the relay board pulling in heat
contact for the strip heat and blower operation. On a
call for second stage heat, R-W2 makes bringing on
second heat contactor, if so equipped. See Table 1 on
following page.

COMPRESSOR CONTROL MODULE

The compressor control module (CCM) is standard on
all models covered by this manual. The compressor

control module is an anti-short cycle/lockout timer with
high and low pressure switch monitoring and alarm
relay output.

Adjustable Delay-on-Make and Delay-on-Break Timer

On initial power up and any time power is interrupted
to the unit, the delay-on-make period begins, which
is the time set on the potentiometer (delay-on-break
time) plus 10% of the delay-on-break setting. When
the delay-on-make period is complete and the high
pressure switch and low pressure switch are closed, the
compressor contactor is energized. Upon shutdown
(end of the call for cooling), the delay-on-break timer
starts and prevents restart (next call for cooling) until
the delay-on-break period has expired.

During routine operation of the unit with no power
interruptions, the compressor will operate on demand
with no delay.

High Pressure Switch and Lockout Sequence

If the high pressure switch opens, the compressor
contactor will de-energize immediately. The lockout
timer will go into a soft lockout and stay in soft lockout
until the high pressure switch closes and the delay-on­break time has expired. If the high pressure switch
opens again in this same operating cycle, the unit will go
into manual lockout condition and the alarm relay circuit
will energize. Recycling the wall thermostat or main
power resets the manual lockout.

Low Pressure Switch, Bypass and Lockout Sequence

If the low pressure switch opens for more than 120
seconds, the compressor contactor will de-energize and
go into a soft lockout. Regardless the state of the low
pressure switch, the contactor will re-energize after
the delay-on-make time delay has expired. If the low
pressure switch remains open, or opens again for longer
than 120 seconds, the unit will go into manual lockout
condition and the alarm relay circuit will energize.
Recycling the wall thermostat or main power resets the
manual lockout.

Alarm Relay Output

Alarm terminal is output connection for applications
where alarm relay is employed. This terminal is
powered whenever the compressor is locked out due to
HPC or LPC sequences as described.

NOTE: Both high and low pressure switch controls are

inherently automatic reset devices. The high
pressure switch and low pressure switch cut
out and cut in settings are fixed by specific air
conditioner unit model. The lockout features,
both soft and manual, are a function of the
compressor control module.

Manual 2100-647
Page 16 of 28

Adjustments

Typical Settings for Dual Unit Installation:

Adjustable Delay-on-Make and Delay-on-Break Timer

The potentiometer is used to select delay-on-break time
from 30 seconds to 5 minutes. Delay-on-make (DOM)
timing on power up and after power interruptions is
equal to 2 minutes plus 10% of delay-on-break (DOB)
setting:

0.5 minute (30 seconds) DOB = 123 second DOM

1.0 minute (60 seconds) DOB = 126 second DOM

2.0 minute (120 seconds) DOB = 132 second DOM

Unit 1: DOB set at 2 minutes and DOM is 132 seconds
Unit 2: DOB set at 4 minutes and DOM is 144 seconds

PRESSURE SERVICE PORTS

High and low pressure service ports are installed on
all units so that the system operating pressures can
be observed. A pressure table can be found on page
19 covering all models. It is imperative to match the
correct pressure table to the unit by model number.

3.0 minute (180 seconds) DOB = 138 second DOM

4.0 minute (240 seconds) DOB = 144 second DOM

5.0 minute (300 seconds) DOB = 150 second DOM

During routine operation of the unit with no power
interruptions, the compressor will operate on demand
with no delay.

TABLE 1

Sequence of Operation

Terminal Description Use

1 Compressor on Output Signal from Jade to MV Economizer Only "A"

2 24VAC HOT from Terminal 2 Connected to Unit Transformer 24V HOT "R"

3 24VAC COMMON from Unit Transformer to MV 24V COMMON "C"

4 Unit Compressor Operation Cooling Operation "Y"

5 Close Damper Input (Close Blade 100%) Economizer Only "F"

6 Electric Heat On Operation, Stage 1 and 2 Heating Operation "W1"

7 1st Stage Cooling Input, 1st Stage Cooling Signal to Jade Economizer Only "Y1"

8 2nd Stage Cooling Input, 2nd Stage Cooling Signal to Jade Economizer Only "Y2"

9 Blower Operation (Indoor Blower On) Blower Operation "G"

10 Filter Switch Normally Closed Dry Contacts Alarm Signal "4"

11 Filter Switch Normally Closed Dry Contacts Alarm Signal "5"

12 Blade Switch Delay Relay Normally Closed Dry Contacts Economizer Only "8"

13 Blade Switch Delay Relay Normally Closed Dry Contacts Economizer Only "9"

14 Occupied Signal Input, Econ Emergency Open (Open Blade 100%) Economizer Only "E"

15 Econ Open Output (6V HOT, 24V HOT after Blade Open 100% and delay) Economizer Only "10"

16 Alarm Relay Common Dry Contact Comp Alarm Signal "3"

17 Alarm Relay Normally Open Dry Contact Comp Alarm Signal "2"

18 Alarm Relay Normally Closed Dry Contact Comp Alarm Signal "1"

24VAC HOT to Terminal 2 from Unit Transformer Through Smoke Alarm Jumper

19

Wire*

20 2nd Stage Heating On Operated Through Jumper to Terminal 6

Blade Switch Terminal 24V HOT When Blade is Open, Sends Signal from Switch

21

to Delay Relay

* Replace jumper wire with smoke alarm connections to interrupt 24VAC unit power if smoke alarm is used in shelter. Jumper can also

be removed to break 24VAC power to unit.

24V HOT "RT"

Heating Operation,

2nd Stage

Economizer Only "7"

Series "2"
Reference

"W2'

Manual 2100-647
Page 17 of 28

SERVICE

FAN BLADE SETTING DIMENSIONS

The correct fan blade setting for proper air delivery
across the outdoor coil is shown in Figure 7. Refer to
Table 2 for unit specific dimension.

Any service work requiring removal or adjustment in the
fan and/or motor area will require that the dimensions
below be checked and blade adjusted in or out on the
motor shaft accordingly.

FIGURE 7

Fan Blade Setting

AIRFLOW

"A"

MIS-1724

REMOVAL OF FAN SHROUD

1. Disconnect all power to the unit.

2. Remove the screws holding both grilles, one on
each side of unit, and remove grilles.

3. Remove nine (9) screws holding fan shroud to
condenser and bottom.

4. Unwire condenser fan motor.

5. Slide complete motor, fan blade and shroud
assembly out the left side of the unit.

6. Service motor/fan as needed.

7. Reverse steps to reinstall

.

R-410A REFRIGERANT CHARGE

This unit was charged at the factory with the quantity
of refrigerant listed on the serial plate. AHRI capacity
and efficiency ratings were determined by testing with
this refrigerant charge quantity.

The pressure table on the following page shows
nominal pressures for the units. Since many
installation specific situations can affect the pressure
readings, this information should only be used by
certified technicians as a guide for evaluating proper
system performance. They shall not be used to adjust
charge. If charge is in doubt, reclaim, evacuate and
recharge the unit to the serial plate charge.

TABLE 2

Fan Blade Dimension

Model

H24 1.00"

H36 1.25"

H42
H48
H60

Dimension

1.75"

A

Manual 2100-647
Page 18 of 28

TABLE 3

Cooling Pressure

Air Temperature Entering Outdoor Coil °F

Model

H24A/L

H36A/L

H42A/L

H48A/L

H60A/L

Return Air Temp

(DB/WB)

75/62

80/67

85/72

75/62

80/67

85/72

75/62

80/67

85/72

75/62

80/67

85/72

75/62

80/67

85/72

Pressure 75 80 85 90 95 100 105 110 115 120 125

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

Low Side

High Side

123
314

132
322

137
333

117
323

125
331

129
343

123
323

132
331

137
343

120
330

128
338

132
350

127
344

136
353

141
365

124
334

133
343

138
355

120
346

128
355

132
367

125
346

134
355

139
367

122
353

131
362

136
375

129
362

138
371

143
384

126
355

135
364

140
377

122
370

130
379

135
392

128
371

137
380

142
393

125
377

134
387

139
401

131
380

140
390

145
404

128
377

137
387

142
401

124
394

133
404

138
418

130
395

139
405

144
419

127
402

136
412

141
426

134
401

143
411

148
425

129
401

138
411

143
425

127
419

136
430

141
445

132
421

141
432

146
447

130
428

139
439

144
454

136
421

145
432

150
447

131
425

140
436

145
451

129
446

138
457

143
473

135
447

144
458

149
474

132
454

141
466

146
482

137
444

147
455

152
471

133
451

142
463

147
479

131
473

140
485

145
502

137
474

146
486

151
503

134
482

143
494

148
511

140
467

150
479

155
496

135
479

144
491

149
508

134
500

143
513

148
531

138
501

148
514

153
532

136
510

145
523

150
541

142
492

152
505

157
523

137
507

146
520

151
538

136
528

145
542

150
561

140
528

150
542

155
561

137
540

147
554

152
573

145
518

155
531

160
550

139
536

149
550

154
569

137
558

147
572

152
592

142
558

152
572

157
592

139
570

149
585

154
605

148
545

158
559

164
579

141
567

151
582

156
602

138
587

148
602

153
623

144
587

154
602

159
623

141
601

151
616

156
638

151
573

161
588

167
609

Low side pressure ± 4 PSIG
High side pressure ± 10 PSIG

Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating
charge being in the system, the charge should be removed, system evacuated and recharged to serial plate charge
weight.

NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated,

check condenser fan wiring. See “Condenser Fan Operation”.

Manual 2100-647
Page 19 of 28

TABLE 4A

Electrical Specifications H***A Series

Single Circuit Multiple Circuit

Rated

MODEL

H24AA-A00, A0Z

H36AA-A00*, A0Z*

H42AA-A00, A0Z

H48AA-A00, A0Z

H60AA-A00, A0Z

 These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor sizing.
 Maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors.
 Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes.

* Top outlet supply option is available only factory installed and only on the selected models.

CAUTION: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to Note 8 of Table 310 regarding Ampacity

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical

A04
A05

230/208-1
A08
A10

A05*

A08

230/208-1

A10*

A15

A05
A10

230/208-1
A15
A20

A05
A10

230/208-1
A15
A20

A05
A10

230/208-1
A15
A20

Adjustment Factors when more than three (3) current carrying conductors are in a raceway.

Code and all local codes.

Volts &

Phase

No. Field

Power

Circuits

1
1
1
1
1
1
1
1
1

1 or 2

1
1

1
1 or 2
1 or 2

1

1

1
1 or 2
1 or 2

1

1

1
1 or 2
1 or 2



Minimum

Circuit

Ampacity

21
25
30
46
56
29
32
47
58
84
32
32
58
84

110

34
34
58
84

110

38
38
60
86

112



Maximum

External

Fuse or

Ckt. Brkr.

30
30
30
50
60
35
35
50
60
90
50
50
60
90

125

50
50
60
90

125

60
60
60
90

125



Field

Power

Wire
Size

10
10
10

8
6
8
8
8
6
4
8
8
6
4
2
8
8
6
4
2
8
8
6
3
2

Ground

Wire



 Minimum

Circuit

Ampacity

 Maximum

External Fuse or

Ckt. Breaker



Field Power

Wire Size

Ground

Wire Size

Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C

10
10
10
10
10
10
10
10
10

8 58 26 60 30 6 10 10 10
10
10
10

86585826

10
10
10

86585826

10
10
10

86606026

52

52

52

606030

606030

606030

60

60

60

6610

6610

6610

6

6

6

101010

101010

101010



10

10

10

TABLE 4B

Electrical Specifications H***L Series

Single Circuit Dual Circuit

Rated

MODEL

H24LA-A00, A0Z

H36LA-A00, A0Z

H42LA-A00, A0Z

H48LA-A00, A0Z

H60LA-A00, A0Z

 These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor sizing.
 Maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors.
 Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes.

* Top outlet supply option is available only factory installed and only on the selected models.

CAUTION: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to Note 8 of Table 310 regarding Ampacity

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical

A05

230/208-1

A08
A10

A05

230/208-1

A10
A15

A05

230/208-1

A10
A15

A05

230/208-1

A10
A15

A05

230/208-1

A10
A15

Adjustment Factors when more than three (3) current carrying conductors are in a raceway.

Code and all local codes.

Volts &

Phase

No. Field

Power

Circuits

1
1
1
1
1
1
1

1 or 2

1
1
1

1 or 2

1
1
1

1 or 2

1
1
1

1 or 2



Minimum

Circuit

Ampacity

21
30
46
56
29
32
58
84
32
32
58
84
34
34
58
84
38
38
60
86



Maximum

External

Fuse or Ckt.

Brkr.

30
30
50
60
35
35
60
90
50
50
60
90
50
50
60
90
60
60
60
90



Field

Power

Wire
Size

10
10

8
6
8
8
6
4
8
8
6
4
8
8
6
4
8
8
6
3

Ground

Wire



 Minimum

Circuit

Ampacity

 Maximum

External Fuse or

Ckt. Breake



Field Power

Wire S



Ground

Wire Size

Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B

10
10
10
10
10
10
10

8 58 26 60 30 6 10 10 10
10
10
10

8 58 26 60 30 6 10 10 10
10
10
10

8 58 26 60 30 6 10 10 10
10
10
10

8 60 26 60 30 6 10 10 10

Manual 2100-647
Page 20 of 28

TABLE 5

Recommended Airflow

Model

H24A, H24L 800 .30 700 - 950 Single

H36A, H36L 1100 .30 1000 - 1300 High

H42A, H42L 1350 .40 1250 - 1600 Low

H48A, H48L 1550 .35 1450 - 1750 High

H60A, H60L 1800 .30 1700 - 2000 High

* Rated CFM and ESP on factory speed connection.

Speed

ESP

(Inch H20)

0.0

0.1 960 925

0.2 905 870

0.3 835 800

0.4 750 720

0.5 640 610 970 895 705 680

H24 H36 H42 H48 H60

Single High Low High Low High Low High Low

Dry

Wet

Dry

Wet

Coil

1010

Coil

975

Coil

1400 1310

1340 1260

1265 1185

1180 1100

1080 1010

Coil

Dry

Coil

965 955

940 930

905 890

860 850

800 785

Nominal

Rated

CFM *

Nominal

Rated

ESP *

Recommended

TABLE 6

Indoor Blower Performance

Wet

Dry

Wet

Coil

Coil

1980 1940 1800 1705 2000 1940 1750 1700 2105 2010 1540 1460

1905 1880 1700 1640 1910 1865 1675 1615 2045 1960 1480 1395

1820 1760 1615 1565 1820 1770 1600 1540 1970 1885 1400 1315

1735 1665 1530 1450 1720 1605 1500 1425 1895 1800 1300 1220

1615 1565 1425 1350 1575 1500 1375 1320 1800 1700 1220 1150

1510 1380 1100 1000 1420 1190 1075 1030 1705 1605 1110 1070

Coil

Dry

Coil

Airflow Range

Wet
Coil

Dry

Coil

Factory Speed

Connection

Wet

Dry

Coil

Coil

Wet
Coil

Dry

Coil

Wet
Coil

Dry

Coil

Wet
Coil

TABLE 7

Maximum ESP of Operation

Electric Heat Only

Model H24A/L H36A/L H42A/L, H48A/L H60A/L

Outlet FRONT FRONT TOP FRONT FRONT

Speed Single High Low High Low High Low High Low

-A0Z

-A04

-A05

-A08

-A10

-A15

-A20

.50

.50
.50

.50

.50
.50
.50
.40

.50

.50
.50
.45
.35

.50
.50

.50

.50
.45

.35

.50

.50

.50
.50
.50

.50

.50

.50
.50
.45

.50

.50

.50
.50
.50

.50

.50

.50
.50
.40

TABLE 8

Electric Heat

Models

(KW)

4 16.7 13650 14.4 10240

5 20.8 17065 18.1 12800

8 33.3 27300 28.8 20475

10 41.6 34130 36.2 25600

15 62.5 51250 54.0 38400

20 83.2 68260 72.1 51200

240V-1 208V-1

Amps BTUH Amps BTUH

Manual 2100-647
Page 21 of 28

Right Hand Units

Heater Kits

Circuit Breakers

(WMCB)

&

Pull Disconnects

(WMPD)

TABLE 9

Optional Accessories

A-A

A-A

A-A

A

A

H36

H24

EHWA02-A05B X

EHW02A-A08B X

EHWA02A-A10B X

EHWA24-A04B X

EHWA03-A05B X

EHWA03-A08B X

EHWA03-A10B X

EHWA03-A15B X

EHW4TA-A05 X X

EHWA05-A10B X X X

EHWA05-A15B X X X

EHWA05-A20B X X X

EHW5TA-A05 X

WMCB-03A X

WMCB-05A X

WMCB-08A X X

WMCB-09A X

A

H42

A-A
A

H48

A-A
A

H60

Left Hand Units

Heater Kits

Circuit Breakers

(WMCB)

&

Pull Disconnects

(WMPD)

A-A

A-A

A-A

L

L

H36

H24

EHWA02A-A05LB X

EHW02A-A08LB X

EHWA02-A10LB X

EHWA03-A05LB X

EHWA03-A10LB X

EHWA03-A15LB X

EHW4TA-A05L X X X

EHWA05-A10LB X X X

EHWA05-A15LB X X X

WMCB-03A X

WMCB-05A X

WMCB-08A X X

WMCB-09A X

L

H42

A-A
L

H48

A-A
L

H60

TABLE 10

Vent and Control Options

Part Number Description

CMC-14 ODT X X X

CMC-15 Start Kit (230V 1-Phase) X X X

CMC-23 DDC X X

CMC-24 DDC X

CMC-28 LAC X X X

BOP-2 Blank Off Plate X

EWM2-E
EWM2-T

Economizer - Bldg. Equipment, Enthalpy
Economizer - Bldg. Equipment, DB Temp.

BOP-3 Blank Off Plate X

EWM3-E
EWM3-T

Economizer - Bldg. Equipment, Enthalpy
Economizer - Bldg. Equipment, DB Temp.

BOP-5 Blank Off Plate X

EWM5-E
EWM5-T

Economizer - Bldg. Equipment, Enthalpy
Economizer - Bldg. Equipment, DB Temp.

H24

X
X

X
X

H36

H42

X
X

H48

H60

Manual 2100-647
Page 22 of 28

TABLE 11

Unit Low Voltage Terminal Connection Chart – MV Series Controller

Terminal Description MV Terminal Connection

1 Compressor on Output Signal from Jade to MV "A" on Relay Board "A"

2 24VAC HOT from Terminal 2 Connected to Unit Transformer to MV "R" on Relay Board "R"

3 24VAC COMMON from Unit Transformer to MV "C" on Relay Board "C"

Unit Compressor Operation, Unit Receives Signal from MV for Compressor/

4

Condenser Fan On

5 Close Damper Input (Close Blade 100%), Unit Receives Signal from MV "F" on Relay Board "F"

6 Electric Heat On Operation, Stage 1 and 2, Unit Receives Signal from MV "W" on Relay Board "W1"

7 1st Stage Cooling Input, 1st Stage Cooling Signal to Jade from MV "Y1" on Relay Board "Y1"

8 2nd Stage Cooling Input, 2nd Stage Cooling Signal to Jade from MV "Y2" on Relay Board "Y2"

9 Blower Operation (Indoor Blower On), Unit Receives Signal from MV "G" on Relay Board "G"

10 Filter Switch Normally Closed Dry Contacts, MV Signals Dirty Filter Alarm "4" on Relay Board "4"

11 Filter Switch Normally Closed Dry Contacts, MV Signals Dirty Filter Alarm "5" on Relay Board "5"

Blade Switch Delay Relay Normally Closed Dry Contacts, MV Signals Blade

12

Switch Fail Alarm*

Blade Switch Delay Relay Normally Closed Dry Contacts, MV Signals Blade

13

Switch Fail Alarm*

Occupied Signal Input, Econ Emergency Open (Open Blade 100%), Unit

14

Receives Signal from MV

Econ Open Output (6V HOT, 24V HOT after Blade Open 100% and Delay), Sends

15

Signal to MV

Alarm Relay Common Dry Contact, MV Signals Compressor Fail Alarm "LOCKOUT 3" on Alarm

16

Alarm Relay Normally Open Dry Contact, MV Signals Compressor Fail Alarm "LOCKOUT 2" on Alarm

17

18 Alarm Relay Normally Closed Dry Contact Not Used on MV "1"

24VAC HOT to Terminal 2 from Unit Transformer Through Smoke Alarm Jumper

19

Wire**

20 2nd Stage Heating On Operated Through Jumper to Terminal 6 Not Used on MV "W2'

Blade Switch Terminal 24V HOT When Blade is Open, Sends Signal from Switch

21

to Delay Relay

"Y" on Relay Board

"8" on Relay Board

"9" on Relay Board

"ECONE" on Alarm Board

"DAMPER" on Comm Board

Board

Board

Building Smoke Alarm

(optional)

Not Used on MV "7"

Series "2"
Reference

"Y"

"8"

"9"

"E"

"10"

"3"

"2"

"RT"

* Blade switch delay relay fail alarm set to 500 second delay from factory.
** Replace jumper wire with smoke alarm connections to interrupt 24VAC unit power if smoke alarm is used in shelter. Jumper can also

be removed to break 24VAC power to unit.

Manual 2100-647
Page 23 of 28

TABLE 12

Unit Low Voltage Terminal Connection Chart – MC Series Controller

Terminal Description MC Terminal Connection

1 Compressor on Output Signal from Jade to MC "A" on Relay Board "A"

2 24VAC HOT from Terminal 2 Connected to Unit Transformer to MC "R" on Relay Board "R"

3 24VAC COMMON from Unit Transformer to MC "C" on Relay Board "C"

Unit Compressor Operation, Unit Receives Signal from MC for Compressor/

4

Condenser Fan On

5 Close Damper Input (Close Blade 100%), Unit Receives Signal from MC* "F" on Relay Board "F"

6 Electric Heat On Operation, Stage 1 and 2, Unit Receives Signal from MC "W" on Relay Board "W1"

7 1st Stage Cooling Input, 1st Stage Cooling Signal to Jade from MC "Y1" on Relay Board "Y1"

8 2nd Stage Cooling Input, 2nd Stage Cooling Signal to Jade from MC "Y2" on Relay Board "Y2"

9 Blower Operation (Indoor Blower On), Unit Receives Signal from MC "G" on Relay Board "G"

10 Filter Switch Normally Closed Dry Contacts Not Used on MC "4"

11 Filter Switch Normally Closed Dry Contacts Not Used on MC "5"

12 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used on MC "8"

13 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used on MC "9"

Occupied Signal Input, Econ Emergency Open (Open Blade 100%), Unit

14

Receives Signal from MC

15 Econ Open Output (6V HOT, 24V HOT after Blade Open 100% and Delay) Not Used on MC "10"

Alarm Relay Common Dry Contact, MC Signals Compressor Fail Alarm "LOCKOUT 3" on Alarm

16

Alarm Relay Normally Open Dry Contact, MC Signals Compressor Fail Alarm "LOCKOUT 2" on Alarm

17

18 Alarm Relay Normally Closed Dry Contact Not Used on MC "1"

24VAC HOT to Terminal 2 from Unit Transformer Through Smoke Alarm Jumper

19

Wire**

20 2nd Stage Heating On Operated Through Jumper to Terminal 6 Not Used on MC "W2'

Blade Switch Terminal 24V HOT When Blade is Open, Sends Signal from Switch

21

to Delay Relay

* Requires signal from "R" on MC controller to "F" on MC controller.
** Replace jumper wire with smoke alarm connections to interrupt 24VAC unit power if smoke alarm is used in shelter. Jumper can also

be removed to break 24VAC power to unit.

"Y" on Relay Board "Y"

"E" on Alarm Board "E"

Board

Board

Building Smoke Alarm

(optional)

Not Used on MC "7"

Series "2"

Reference

"3"

"2"

"RT"

Manual 2100-647
Page 24 of 28

TABLE 13

Unit Low Voltage Terminal Connection Chart – Cooling/Heating Thermostat

Terminal Description MC Terminal Connection

1 Compressor on Output Signal from Jade Not Used "A"

2 24VAC HOT from Terminal 2 Connected to Unit Transformer to Thermostat "R" on Tstat "R"

3 24VAC COMMON from Unit Transformer to Thermostat "C" on Tstat "C"

Unit Compressor Operation, Unit Receives Signal from MC for Compressor/

4

Condenser Fan On

5 Close Damper Input (Close Blade 100%) Not Used "F"

6 Electric Heat On Operation, Stage 1 and 2, Unit Receives Signal from Thermostat "W" on Tstat "W1"

7 1st Stage Cooling Input, 1st Stage Cooling Signal – Economizer Use Only Economizer 24V Signal "Y1"

8 2nd Stage Cooling Input, 2nd Stage Cooling Signal – Economizer Use Only Economizer 24V Signal "Y2"

9 Blower Operation (Indoor Blower On), Unit Receives Signal from Thermostat "G" on Tstat "G"

10 Filter Switch Normally Closed Dry Contacts Not Used "4"

11 Filter Switch Normally Closed Dry Contacts Not Used "5"

12 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used "8"

13 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used "9"

14 Occupied Signal Input, Econ Emergency Open (Open Blade 100%) Not Used "E"

15 Econ Open Output (6V HOT, 24V HOT after Blade Open 100% and Delay) Not Used "10"

16 Alarm Relay Common Dry Contact Not Used "3"

17 Alarm Relay Normally Open Dry Contact Not Used "2"

18 Alarm Relay Normally Closed Dry Contact Not Used "1"

24VAC HOT to Terminal 2 from Unit Transformer Through Smoke Alarm Jumper

19

Wire*

20 2nd Stage Heating On Operated Through Jumper to Terminal 6 Not Used "W2'

Blade Switch Terminal 24V HOT When Blade is Open, Sends Signal from Switch

21

to Delay Relay

"Y" on Tstat "Y"

Building Smoke Alarm

(optional)

Not Used "7"

Series "2"
Reference

"RT"

* Replace jumper wire with smoke alarm connections to interrupt 24VAC unit power if smoke alarm is used in shelter. Jumper can also

be removed to break 24VAC power to unit.

Manual 2100-647
Page 25 of 28

FIGURE 8A

H***A Wiring Diagram – Top

Black

Black/White

31

Compressor

Black/White

C

R

S

Compressor

Crankcase Heater

Outdoor

Fan Motor

MIS-3770

Condenser Section

Black

Brown

27

Yellow

Red

Start Kit (Opt.)

Yellow

C

Yellow

Yellow

Yellow

Dual Can Capacitor

HERM

FAN

"MV CONNECTIONS"

Red/White

Black/White

103

Yellow

104

Blue

106

Brown

Orange

109

110

111

112

113

Blue/Black

Blue/Black

Red/Black

Red/Black

123

Black

116

117

118

119 102

120

121

103

Blue

Red

Red/Blue

Brown

Yellow/Black

2

2

"R" "A"

3

3

"C"

4

4

"Y"

5

5

"F"

6

6

"W1"

7

7

"Y1"

818

"Y2"

9

"G"

10

"4"

11

11 10 9 8

"5"

12

"8"

13

13

"9"

14

14

E

ECON

15

DAMPER

16

LOUT

17 15

LOUT

2 3

18

19

19

20

2021 17 16

21

11

112

1

Low Voltage

Red

Module

Red

Hi Press. Control

Blue

Condenser Section

Field Connections

To MV Controller

Wire Identification numbers

Red/White

"SMOKE JUMPER"

Optional

Field

for Bard use only.

99

Factory

A

Used

122

if Option Not

Wires Connect

Smoke

P6

Low Voltage

High Voltage

Yellow

Red/White

9 8

Black/White

6

Blue/White

Purple

Pink

5 2 1

Jumper

Yellow/Red

7

Brown/White

1012

Green

4

Yellow/White

11

12 Pin Vent

Option Plug

Blue

Low Press. Control

Indoor

Fan Motor

Evaporator Section

Brown

Brown

Capacitor

Indoor Fan

Yellow

Red (Lo)

Black (Hi)

Red

Ground Lug

13

130

Hi Voltage Connections

L2

L1

Orange

Black

31

103

9

COM

Indoor

NC

NO

Red/Black

Filter Reset Button

230/208-60-1

Per Nameplate

Red

Blue

Brown

11

106

Heat Plug

6 Pin Electric

6

5

129

4

3

120

2

1

103

109

Black/White

33

Parking

Terminal

75° C.

WARNING

!

Black

Red

Red

Black

Operation

tap for 208V

130

Red Wire to 208V

8

Transformer

Alarm

COM

NO

116

208V

COM

240V

C

R

119

31

9

Relay

Black/White

NC

117

118

DANGER

!

USE COPPER CONDUCTORS

ONLY SUITABLE FOR AT LEAST

136

131

103

111

SERVICING.

*DISCONNECT POWER BEFORE

*ELECTRICAL SHOCK HAZARD

Black

Black

136

L2

L1

Ground

T2

T1

Contactor

Compressor

103

7

Black/White

Eyelet

Yellow/Red

Black

Black

Low Ambient Control (opt.)

12

(Opt.)

Block #2

Terminal

29

30

Pink

103

Black/White

A

B

Blower Relay

Orange/Black

128

Blk/Wht

113

32

110

Filter

Relay

7

1
3

9

6 4

132

124

Red/White

112

T1

T2

COM

103

500

23

Time

Delay

Relay

Red/White

132

Light

Orange/Black

132

Filter Switch

128

104

CCALRC

NCNO

HPCRY

2

LPC

MINUTES

10

Black/White

133

Blue

Blue

Red/White

135

135

Manual 2100-647
Page 26 of 28

FIGURE 8B

H***A Wiring Diagram – Bottom

COMPRESSOR OUTPUT

24V COMMON INPUT

24V HOT INPUT

1ST STAGE COOLING INPUT

CLOSE DAMPER INPUT

OCCUPIED SIGNAL INPUT

2ND STAGE COOLING INPUT

ECON OPEN OUTPUT

GROUND

ECON FAILURE OUTPUT

NC

BLUE/WHITE

CONTACT POSITION

Yellow

Blue/White

Yellow/Red

Yellow/White

3

DAMPER BLADE IN

THE CLOSED POSITION

IS SHOWN WITH THE

13

2

1

YELLOW/WHITE

DAMPER MOTOR

BL. SWITCH

1

FEMALE

RED

12 PIN PLUG

1

MALE

12 PIN PLUG

BLACK

3

8

NO

COM

ORANGE/BLACK

4

7

3

BROWN

4

BROWN

Red/White

Purple

Brown/White

OUTSIDE AIR

TEMPERATURE

BLACK11RED

982

SENSOR

12

Black/White

Pink

Green

46

SENSOR

MIXED AIR

TEMPERATURE

24V HOT INPUT

9

12 PIN PLUG

12 PIN PLUG

11

FEMALE

7

MALE

1ST STAGE COOLING INPUT

2ND STAGE COOLING INPUT

COMPRESSOR OUTPUT

24V COMMON INPUT

ECON FAILURE OUTPUT

CLOSE DAMPER INPUT

OCCUPIED SIGNAL INPUT

GROUND

ORANGE

ORANGE

6

5

1

12

ECON OPEN OUTPUT

7

4

10

2ND STAGE COOLING OUTPUT (not used)

6

823

5

MIS-3710

YELLOW/WHITE

THIS WIRE IS PART OF

BLACK

YELLOW/RED

GREEN

OCC

OAT +

BROWN/WHITE

4

3

2

1

EXH1

E-GND

AUX1-O

S-BUS

S-BUS

OAT -

BLUE

YELLOW/WHITE

6

5

AUX2-I

12 PIN PLUG MALE 7

ORANGE

ORANGE

MAT +

MAT -

1

23465

PLUG PLUG

PLUG

PLUG

PINK

Y2-I

IAQ +

1

ORANGE

Y2-O

IAQ -

2

PURPLE

456

Y1-I

IAQ24V

3

RED

YELLOW

ECONOMIZER CONTROL PANEL

123

3

C

R

Y1-O

BLACK

RED

RED/BLACK

NO

48

RELAY

MODULE

COM

ACT 24V

ACT -

ACT +

654

ECONOMIZER CONTROL

NC

RED

BLACK

BROWN

BROWN

BLUE/WHITE

ORANGE/BLACK

connect to "S-BUS" terminals.

For Enthalpy version, these wires

Temperature econ. version shown.

Manual 2100-647
Page 27 of 28

Low Voltage

Terminal Strip

3

2

10

11

6

20

9

16

17

18

12

13

21

4

19

1

5

7

Hot

Common

8

14

15

Filter Light

Filter

Switch

Filter Reset Button

R on

Compressor

Control Module

Filter

Relay

Pin 6 on Heater Plug

Pin 3 on Heater Plug

Pin 1 on Heater Plug

Blower Relay

Alarm Relay

Transformer 24VAC

Hi Press. Sw.

Pin 8 on Vent Plug

Pin 1 on Vent Plug

Pin 2 on Vent Plug

Pin 5 on Vent Plug

Pin 7 on Vent Plug

Pin 10 on Vent Plug

Time Delay Relay

T1T2

Y HPC

Lo Press. Sw.

LPC

LPC

Alarm Relay

ALR

CC

Comp. Control Module

R

MV

Controller

C

4

5

W

G

L3

L2

8

9

Y

A

F

Y1

Y2

EE

DR

Pin 6 on Vent Plug

Pin 9 on Vent Plug

Pin 12 on V. Plug

Compressor

Contactor

COMNC

5

42

1 3

5

4

1 3

Low Voltage

Ladder Diagram

for Unit and MV

Connections

Blk/Wht

Red/Wht

Blue/Blk

Blue/Blk

Blue

Brown

Orange

Black

Red

Blue

Red/Blk

Red/Blk

Yel/Blk

Red/Blue

Yellow

Yellow

Blue/Wht

Purple

Pink

Yel/Red

Brown/Wht

Blk/Wht

Blk/Wht

Org/Blk

Red/Wht

Org/Blk

Pink

Bk/Wh

BlueBlue

RedRed

Rd/W Bk/W

MIS-3712

FIGURE 9

H***A Low Voltage Ladder Diagram for Unit and MV Connections

Manual 2100-647
Page 28 of 28