Solair J A Series User manual

Manual 2100-553
Page 1 of 28
INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE AIR CONDITIONERS
&
LOW VOLTAGE CONTROL
CIRCUIT WIRING
MODELS
J17A1 J17L1
J24A1 J24L1
J30A1 J30L1
J36A1 J36L1
J42A1 J42L1
J48A1 J48L1
J60A1 J60L1
J70A1 J70L1
Manual: 2100-553
Supersedes: NEW
File: Volume III, Tab 16
Date: 06-22-11

Manual 2100-553
Page 2 of 28
Contents
Getting Other Information and Publications 3
Wall Mount General Information
Wall Mount Model Nomenclature ............................ 4
Shipping Damage .................................................... 4
General ................................................................ 4
Duct Work ................................................................ 5
Filters ................................................................ 5
Fresh Air Intake ....................................................... 5
Condensate Drain .................................................... 5
Installation Instructions
Wall Mounting Information ....................................... 6
Mounting the Unit .................................................... 6
Clearances Required ............................................... 6
Minimum Clearances ............................................... 6
Wiring – Main Power ............................................. 14
Wiring – Low Voltage Wiring ................................. 14
Figures
Figure 1 Fresh Air Damper Assembly ................... 5
Figure 2 Unit Dimensions ...................................... 7
Figure 3A Mounting Instructions - J17 & J24........... 8
Figure 3B Mounting Instructions - J30 & J36.......... 9
Figure 3C Mounting Instructions - J42, J48, J60 ....10
Figure 4 Electric Heat Clearance .........................11
Figure 5 Wall Mounting Instructions .................... 12
Figure 6 Wall Mounting Instructions .................... 12
Figure 7 Common Wall Mounting Installations .... 13
Figure 8 Basic A/C w/Opt. Elec. Heat No Econ... 15
Figure 9 A/C with EIFM Economizer ................... 16
Figure 10 A/C w/ECONWMT Econ. ...................... 17
Figure 11 Fan Blade Setting ................................. 21
Start Up
General .............................................................. 18
Topping Off System Charge................................... 18
Safety Practices ..................................................... 18
Important Installer Note ......................................... 19
High & Low Pressure Switch ................................. 19
Three Phase Scroll Compressor ............................ 19
Phase Monitor ....................................................... 19
Condenser Fan Operation ..................................... 19
Service Hints ......................................................... 19
Sequence of Operation .......................................... 20
Compressor Control Module .................................. 20
Adjustments ........................................................... 20
Pressure Service Ports .......................................... 20
Troubleshooting
Fan Blade Setting Dimensions .............................. 21
Removal of Fan Shroud ......................................... 21
Refrigerant Charge ................................................ 21
Tables
Table 1 Operating Voltage Range ...................... 14
Table 2 Thermostat Wire Size ........................... 14
Table 3 Fan Blade Dimension............................ 21
Table 4 Refrigerant Charge ............................... 21
Table 5 Refrigerant Charge ............................... 21
Table 6 Cooling Pressure .................................. 22
Table 7 Electrical Specifications ........................ 23
Table 8 Electrical Specifications ........................ 24
Table 9 Recommended Airflow .......................... 25
Table 10 Indoor Blower Performance .................. 25
Table 11 Maximum ESP Electric Heat Only........ 25
Table 12 Electric Heat ......................................... 26
Table 13 Optional Accessories ............................ 27
Table 14 Vent & Control Options ......................... 28

Manual 2100-553
Page 3 of 28
GETTING OTHER INFORMATION AND PUBLICATIONS
These publications can help you install the air
conditioner or heat pump. You can usually find these at
your local library or purchase them directly from the
publisher. Be sure to consult 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]
Manufactured under the following
U.S. Patent numbers:
5,485,878; 5,301,744

Manual 2100-553
Page 4 of 28
WALL MOUNT GENERAL INFORMATION
AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE
J42 A1– A10 X X X X X J
NOTE: Vent option X is without exhaust capability. May require separate field supplied barometric relief in building.
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.
KW
MODEL NUMBER CONTROL MODULES
See Spec. Sheets:
S3438, S3439 &/or S3440
VOLTS & PHASE
A - 230/208/60/1
B - 230/208/60/3
C - 460/60/3
REVISIONS
VENTILATION OPTIONS
X - Barometric Fresh Air Damper (Standard)
See Vent & Control Options Table 14. FILTER OPTIONS
P - Two Inch Pleated
COLOR OPTIONS
X - Beige
COIL OPTIONS
X - Standard
OUTLET OPTIONS
X - Front (Standard)
CAPACITY
17 - 1
½ Ton
24 - 2 Ton
30 - 2
½ Ton
36 - 3 Ton
42 - 3 ½ Ton
48 - 4 Ton
60 - 5 Ton
70 - 6 Ton
A - Right Hand Air Conditioner
L - Left Hand Air Conditioner

Manual 2100-553
Page 5 of 28
DUCT WORK
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 Maximum ESP of operation Electric Heat Table 12.
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.
Models J17 - J24 as approved for zero inch clearance to the
supply duct. For model series J30, J36, J42, J48, J60 and
J70 a 1/4 inch clearance to combustible material for the first
three feet of duct attached to the outlet air frame is required.
See Wall Mounting Instructions and Figures 3 and 4 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.
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 inch.
Any grille that meets with 5/8 inch louver criteria may be
used. It is recommended that Return Air Grille Kit RG2
through RG5 or RFG2 through RFG5 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.
FILTERS
A 1-inch throwaway filter 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. A 1-inch washable filter and 2-
inch pleated filter are also available as optional
accessories. The internal filter brackets are adjustable
to accommodate the 2-inch filter by bending two (2)
tabs down on each side of the filter support bracket.
FRESH AIR INTAKE
All units are built with fresh air inlet slots punched in
the service door.
If the unit is equipped with a fresh air damper assembly,
the assembly is shipped already attached to the unit.
The damper blade is locked in the closed position. To
allow the damper to operate, the maximum and
minimum blade position stops must be installed. See
Figure 1.
All capacity, efficiency and cost of operation
information is based upon the fresh air blank-off plate in
place and is recommended for maximum energy
efficiency.
The blank-off plate is available upon request from the
factory and is installed in place of the fresh air damper
shipped with each unit.
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.
FIGURE 1
FRESH AIR DAMPER

Manual 2100-553
Page 6 of 28
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NOTE: For side by side installation of two (2) J**A models there
must be 20" between units. This can be reduced to 15" by using
a J**L model (left side compressor and controls) for the left unit
and JA (right side compressor and controls) for right unit.
See J**A Specification S3438 and J**L Specification S3439 &
J70 Specification S3440 (Right & Left-Hand).
INSTALLATION INSTRUCTIONS
WARNING
Failure to provide the 1/4 inch clearance
between the supply duct and a combustible
surface for the first 3 feet of duct can result in
fire causing damage, injury or death.
WALL MOUNTING INFORMATION
1. Two holes for the supply and return air openings must
be cut through the wall as shown in Figure 3A - 3C.
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. Models J17 and J24 are suitable for 0 inch clearance
to the unit and the supply air duct. Models J30-J70
require 1/4 inch clearance to combustible materials
to the supply air duct flange and the first 3 feet of
supply air duct. However, it is generally
recommended that a 1-inch clearance is used for
ease of installation and maintaining the required
clearance to combustible material. See Figure 3 for
details on opening sizes.
3. Locate and mark lag bolt locations and bottom
mounting bracket location. See Figure
3A - 3C .
4. Mount bottom mounting bracket.
5. Hook top rain flashing, attached to front - right of
supply flange for shipping, under back bend of top.
6. Position unit in opening and secure with 5/16 lag
bolts; use 7/8 inch diameter flat washers on the lag
bolts.
7. Secure rain flashing to wall and caulk across entire
length of top. See Figure 3A - 3C .
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 inches 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.

Manual 2100-553
Page 7 of 28
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Return Air Opening
MIS-2488 B
Drain
Inlet
Air Air Outlet
Front ViewSide View
Cond.
1
Back View
Condenser
Bracket
Installation
Bottom
(Built In)
Brackets
Mounting
Side Wall
Location
Shipping
Flashing
Entrances
Electrical
Optional
Entrance
Electrical
High Voltage
Entrance
Electrical
Air
Ventilation
Door
Vent Option
Panel
Filter Access
Low Voltage
Top Rain (Lockable)
Access Panel
Heat
Electric
Disconnect
Panel
Access
Heater
C. Breaker/
Built In
Rain Hood
4° Pitch
1
Supply Air Opening
7.88 1.00 31.88
MIS-2487 B
1
2
2
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2
Panel
Door
Vent Option
Condenser
Air Outlet
Filter Access
Ventilation
Air
Front View
5.75
F
W
G
Air
Inlet
Cond.
Low Voltage
Electric
Heat
Heater
Access
Panel
4° Pitch
Rain Hood
Built In
Entrance
Entrance
Electrical
Disconnect
Access Panel
(Lockable)
C. Breaker/
High Voltage
Electrical
Drain
Side View
2.13
J
D
K
A
C H
I
Mounting
Side Wall
Supply Air Opening
Brackets
Location
Shipping
Return Air Opening
(Built In)
Optional
Electrical
Entrances
Top Rain
Flashing
Bottom Installation
Bracket
Back View
LM
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1Dimension is 21.00 inches on J70A & J70L models.
2Optional top outlet (factory installed only) for J30A and J36A models only.
FIGURE 2
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8
8.1
All dimensions are in inches. Dimensional drawings are not to scale.
J**A
RIGHT
UNIT
J**L
LEFT
UNIT

Manual 2100-553
Page 8 of 28
FIGURE 3A
J17A1, J17L1, J24A1, J24L1
MOUNTING INSTRUCTIONS
12" 12" 12"
1"
12"
20" 20"
"
3"
4"
Typ.
8"
201
2"
12"
1"
31
8"
4"
Typ.
5"
7 8"
313
16"
2" 2"
71
16"71
16
12"
Right Side View
RETURN AIR
DUCT
IS ON OPPOSITE (LEFT) SIDE.
OPENING
ENTIRE LENGTH OF TOP.
TOP
WALL
OF CAULKING ALONG
PANEL
FOAM AIR SEAL
WALL STRUCTURE
NOTES:
RAIN FLASHING
HEATER ACCESS
TOP FLASHING AT TIME OF INSTALLATION. THE SIDE MOUNTING FLANGES AND UNDER SILICONE CAULKING BE PLACED BEHIND CONTROLS AND HEATER ACCESS
MIS-353 D
Wall Opening and Hole Location View
SEAL WITH BEAD
IT IS RECOMMENDED THAT A BEAD OF W**A UNIT SHOWN, W**L UNIT
SUPPLY AIR
SUPPLIED
Return Opening
Supply Opening
J**LJ**A

Manual 2100-553
Page 9 of 28
FIGURE 3B
J30A1, J30L1, J36A1, J36L1
MOUNTING INSTRUCTIONS
D
12" 12" 12" 12" 12"
C CA
28"
1"
3"
4"
Typ.
4
1 2
"
B E
14"
1"
3
1 8
"
4"
Typ.
5"
4
1 2
"
7 8
"
RETURN AIR
SUPPLIED
Return Opening
16 7/84 9/164 1/21030 17 5/83 13/165 1/48 1/228 1/2
EDCBA
COMBUSTIBLE MATERIALS RECOMMENDED 1" CLEARANCE FROM REQUIRED DIMENSIONS TO MAINTAIN
THE SIDE MOUNTING FLANGES AND UNDER
1/4" CLEARANCE ON ALL
RAIN FLASHING
COMBUSTIBLE MATERIALS
DUCT
TOP FLASHING AT TIME OF INSTALLATION.
1/4" MIN. CLEARANCE FROM
REQUIRED DIMENSIONS TO MAINTAIN
OPENING
ENTIRE LENGTH OF TOP.
MATERIALS
NOTES:
OF CAULKING ALONG
PANEL
FOAM AIR SEAL
FOUR SIDES OF SUPPLY AIR DUCT IS REQUIRED FROM COMBUSTABLE
WALL STRUCTURE
TOP
MIS-311 C
Wall Opening and Hole Location View Right Side View
WALL
HEATER ACCESS
SEAL WITH BEAD
IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED BEHIND
SUPPLY AIR
Supply Opening
W*R UNIT SHOWN, W*L UNIT CONTROLS AND HEATER ACCESS IS ON OPPOSITE (LEFT) SIDE.
J**LJ**A

Manual 2100-553
Page 10 of 28
FIGURE 3C
J42A1, J42L1, J48A1, J48L1, J60A1, J60L1, J70A1, J70L1
MOUNTING INSTRUCTIONS
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"
ACC
3
1 8
"
B
Dimension is 21" on W6R and W6L Units.1
TOP
1 1
DUCT
1/4" MIN. CLEARANCE FROM REQUIRED DIMENSIONS TO MAINTAIN COMBUSTIBLE MATERIALS
RAIN FLASHING
REQUIRED DIMENSIONS TO MAINTAIN RECOMMENDED 1" CLEARANCE FROM COMBUSTIBLE MATERIALS
ABCDE
30 1/2 10 1/2 6 1/4 1 1/4 29 3/4
32 12 5 1/2 2
RETURN AIR
FOAM AIR SEAL
OPENING
29
Wall Opening and Hole Location View
NOTES:
Supply Opening
SUPPLY AIR
Return Opening
IT IS RECOMMENDED THAT A BEAD OF SILICONE CAULKING BE PLACED BEHIND TOP FLASHING AT TIME OF INSTALLATION. THE SIDE MOUNTING FLANGES AND UNDER
TOP.
FOUR SIDES OF SUPPLY
WALL AIR DUCT IS REQUIRED
WALL STRUCTURE
FROM COMBUSTABLE 1/4" CLEARANCE ON ALL MATERIALS
PANEL
HEATER ACCESS
SUPPLIED
Right Side View
SEAL WITH BEAD
OF CAULKING ALONG
ENTIRE LENGTH OF
W*R UNIT SHOWN, W*L UNIT CONTROLS AND HEATER ACCESS IS ON OPPOSITE (LEFT) SIDE.
MIS-416 C
J**LJ**A
J60LJ60A

Manual 2100-553
Page 11 of 28
FIGURE 4
ELECTRIC HEAT CLEARANCE
J30A1, J30L1, J36A1, J36L1, J42A1, J42L1, J48A1, J48L1, J60A1, J60L1, J70A1, J70L1
WARNING
A minimum of 1/4 inch clearance must be maintained between
the supply air duct and combustible materials. This is required
for the first 3 feet of ducting.
It is important to insure that the 1/4 inch minimum spacing is
maintained at all points.
Failure to do this could result in overheating the combustible
material and may result in a fire causing damage, injury or death.
SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR
WALL MOUNTED UNIT SHOWING 1/4 INCH
CLEARANCE TO COMBUSTIBLE SURFACES.

Manual 2100-553
Page 12 of 28
FIGURE 5
WALL MOUNTING INSTRUCTIONS
FIGURE 6
WALL MOUNTING INSTRUCTIONS
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 STEELSIDING
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
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
I
A
C
K
E + 1.000
B
1.000
RETURN DUCT
L
2 x 6
PLATE OF WALL
ATTACH TO BOTTOM
1.000" CLEARANCE
C
STRUCTURAL STEEL
OVER FRAME
2 x 4'S, 2 x 6'S &/OR
EXTERIOR FINISH WALL
OPENING
1.000" CLEARANCE
OPENING
SUPPLY DUCT
INTERIOR FINISHED WALL
ATTACH TO TOP
FRAMING MATERIAL
PLATE OF WALL
OVER FRAME
IF REQUIRED
THIS STRUCTURAL MEMBER
LOCATED TO MATCH STUD
SPACING FOR REST OF WALL.
A SECOND MEMBER MAY BE
REQUIRED FOR SOME WALLS.
IF REQUIRED
ALL AROUND DUCT
ALL AROUND DUCT
SEE UNIT DIMENSIONS, FIGURE 2,
FOR ACTUAL DIMENSIONS.
MIS-549 A
SEE FIGURE 3 – MOUNTING INSTRUCTIONS

Manual 2100-553
Page 13 of 28
FIGURE 7
COMMON WALL MOUNTING INSTALLATIONS
LOWERED
RAISED FLOOR
RAFTERS
SUPPLY AIR
CEILING SURFACE
WALL SLEEVE
RETURN AIR
CLOSET WALL
GRILLE
FLASHING
RETURN AIR
FLASHING
SUPPLY DUCT MAYBE LOCATED IN AN ATTIC
OR BELOW CEILING RAFTERS AS SHOWN
SUPPLY DUCT MAY BE LOCATED IN AN ATTIC
SURFACE
RAFTERS
FINISHED CEILING
SUPPLY AIR DUCT
WALL
OPENING W/ GRILLE
SUPPLY DUCT MAYBE LOCATED IN AN ATTIC
OR BELOW CEILING RAFTERS AS SHOWN
CEILING
RAIN
RETURN AIR
SLEEVE
WALL
SUPPLY AIR DUCT
RAFTERS
RAFTERS
RETURN AIR
OPENING W/ GRILLE
RAIN
FALSE WALL INSTALLATION
DUCTED SUPPLY
GRILLE
OUTSIDE
SPACE
FALSE WALL
RETURN AIR GRILLE
OUTSIDE
OR BELOW CEILING RAFTERS AS SHOWN
FINISHED CEILING SURFACE
RAIN
FLASHING
RAIN
FLASHING
RETURN AT UNITNO DUCT
WALL
SUPPLY AIR DUCT
CLOSET INSTALLATION
RETURN AIR
FINISHED
FINISHED CEILING SURFACE
MIS-550 B
FREE AIR FLOW
OUTSIDE
WALL
OUTSIDE
WALL
SUPPLY AIR DUCT
W/ GRILLE

Manual 2100-553
Page 14 of 28
WIRING – MAIN POWER
Refer to the unit rating plate for wire sizing information
and maximum fuse or “HACR” type 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.
The unit rating plate lists a “Maximum Time Delay
Relay Fuse” or “HACR” type 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 for important information on
three phase scroll compressor start ups.
See Tables 7 & 8 for Electrical Specifications.
WIRING – LOW VOLTAGE WIRING
230/208V, 1 phase and 3 phase equipment contain 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:
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).
PATEGNAR
V042612–352
V802781–022
TABLE 1
OPERATING VOLTAGE RANGE
An 18 gauge copper, color-coded thermostat cable is
recommended. The connection points are shown in this
Manual. See Table below.
Low Voltage Connection
These units use a 24-volt AC low voltage circuit.
The “R” terminal is the hot terminal and the “C”
terminal is grounded.
“G” terminal is the fan input.
“Y” terminal is the compressor input for cooling.
“W1” terminal is the 1st stage electric heat.
“W2” terminal is the 2nd stage heat (if equipped).
“A” terminal is the ventilation input. This terminal
energizes any factory installed ventilation option. See
Table 14 for options.
NOTE: Models with “J” Control Module, “3”
terminal is used along with “1” and “2” for the alarm
relay.
LOW VOLTAGE CONNECTIONS
FOR DDC CONTROL
Fan Only Energize G
Cooling Mode Energize Y, G
1st Stage Heating Energize W1
2nd Stage Heating Energize W1, W2
(if employed)
Ventilation Energize G, A
TABLE 2
THERMOSTAT WIRE SIZE
remrofsnarT AVALFeguaGeriW
mumixaM ecnatsiD teeFnI
553.2
eguag02 eguag81 eguag61 eguag41 eguag21 5406 001 061 052

Manual 2100-553
Page 15 of 28
G
MIS-2975
2E
3A
W1Y2CW2
1
Y1YR
TERMINAL BLOCK
UNIT 24V
F
ELECTRIC HEAT STAGE 1
24V COMMON (GROUNDED)
FAN (BLOWER)
24V HOT
OPEN OR SPECIALUSE AS REQUIRED
COMPRESSOR
ELECTRIC HEAT STAGE 2
N.C. CONTACT
N.O. CONTACT
COMMON
VENTILATION (IF EQUIPPED)
OPEN OR SPECIALUSE AS REQUIRED
"J" MODULE REFRIGERANT ALARM RELAY
ECONOMIZER STAGE 1 IF EQUIPPED
ECONOMIZER STAGE 2
FIGURE 8
BASIC A/C with OPTIONAL ELECTRIC HEAT
NO ECONOMIZER

Manual 2100-553
Page 16 of 28
MIS-2980
EIFM ECONOMIZER
GW2
2E
TERMINAL BLOCK
A
W1Y2C3
1
Y1YR
WIRING HARNESS
UNIT 24V
F
IF EQUIPPED
YELLOW
ALARM RELAY
PINK
ORANGE
ECONOMIZER STAGE 1
ELECTRIC HEAT STAGE 1
ON UNITS WITH 15 OR MORE KW.
FACTORY INSTALLED JUMPER. REMOVE FOR 2-STAGE OPERATION
OPEN OR SPECIALUSE AS REQUIRED
PURPLE
BLUE
24V COMMON (GROUNDED)
FAN (BLOWER)
24V HOT
COMPRESSOR
ELECTRIC HEAT STAGE 2
ECONOMIZER STAGE 2
N.C. CONTACT
OPEN OR SPECIALUSE AS REQUIRED
BLACK
COMMON
N.O. CONTACT
1
1
"J" MODULE REFRIGERANT
BLACK
VENTILATION INPUT (IF EQUIPPED)
FIGURE 9
BASIC A/C with OPTIONAL ELECTRIC HEAT
OLDER EIFM STYLE ECONOMIZER

Manual 2100-553
Page 17 of 28
ECONWMT ECONOMIZER
TERMINAL BLOCK
MIS-2976
R2
WIRING HARNESS
GE
3A
W1Y2CW2
1
Y1Y
UNIT 24V
F
ORANGE
COMMON
COMPRESSOR
OPEN OR SPECIALUSE AS REQUIRED
PINK
ALARM RELAY
ECONOMIZER STAGE 2
N.C. CONTACT
BLACK
N.O. CONTACT
YELLOW
ELECTRIC HEAT STAGE 1
ECONOMIZER STAGE 1
OPEN OR SPECIALUSE AS REQUIRED
RED
PURPLE
YELLOW/RED
BLUE
24V COMMON (GROUNDED)
FAN (BLOWER)
ELECTRIC HEAT STAGE 2
24V HOT
1
1
"J" MODULE REFRIGERANT
IF EQUIPPED
BROWN/WHITE
FACTORY INSTALLED JUMPER. REMOVE FOR 2-STAGE OPERATION
ON UNITS WITH 15 OR MORE KW.
MUST BE ENERGIZED TO ENABLE MINIMUM POSITION.
VENTILATION INPUT (USED IF MINIMUM POSITION REQUIRED FOR VENTILATION)
2
2
FIGURE 10
BASIC A/C with OPTIONAL ELECTRIC HEAT
NEWER ECONWMSTYLE ECONOMIZER

Manual 2100-553
Page 18 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 polyolester 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, Solair 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 charging 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.
SAFETY PRACTICES:
1. Never mix R-410A with other refrigerants.
2. 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.
WARNING
Failure to conform to these practices
could lead to damage, injury or death.

Manual 2100-553
Page 19 of 28
IMPORTANT INSTALLER NOTE
For improved start up performance wash the indoor coil
with a dish washing detergent.
HIGH PRESSURE SWITCH
All J**A/J**L wall mounted air conditioner series
models are supplied with a remote reset for the high and
low pressure switch. If tripped, this pressure switch may
be reset by turning the thermostat off then back on again.
THREE PHASE SCROLL COMPRESSOR
START UP INFORMATION
Scroll compressors, like several other types of
compressors, will only compress in one rotational
direction. Direction of rotation is not an issue with
single phase compressors since they will always start
and run in the proper direction.
However, three phase compressors will rotate in either
direction depending upon phasing of the power. Since
there is a 50-50 chance of connecting power in such a
way as to cause rotation in the reverse direction,
verification of proper rotation must be made.
Verification of proper rotation direction is made by
observing that suction pressure drops and discharge
pressure rises when the compressor is energized.
Reverse rotation also results in an elevated sound level
over that with correct rotation, as well as substantially
reduced current draw compared to tabulated values.
Verification of proper rotation must be made at the
time the equipment is put into service. If improper
rotation is corrected at this time, there will be no
negative impact on the durability of the compressor.
However, reverse operation for over one hour may have
a negative impact on the bearing due to oil pump out.
NOTE: If compressor is allowed to run in reverse rotation
for several minutes, the compressor’s internal
protector will trip.
All three phase compressors are wired identically
internally. As a result, once the correct phasing is
determined for a specific system or installation,
connecting properly phased power leads to the same
Fusite terminal should maintain proper rotation
direction.
The direction of rotation of the compressor may be
changed by reversing any two line connections to the
unit.
PHASE MONITOR
All units with three phase scroll compressors are
equipped with a 3 phase line monitor to prevent
compressor damage due to phase reversal.
The phase monitor in this unit is equipped with two
LEDs. If the Y signal is present at the phase monitor
and phases are correct the green LED will light.
If phases are reversed, the red fault LED will be lit and
compressor operation is inhibited.
If a fault condition occurs, reverse two of the supply
leads to the unit. Do not reverse any of the unit factory
wires as damage may occur.
CONDENSER FAN OPERATION
Applies to J42, J48, J60 and J70 models only. 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 wiring
diagram.
SERVICE HINTS
1. Caution owner/operator to maintain clean air filters
at all times. Also, not to 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.
START UP (Continued)

Manual 2100-553
Page 20 of 28
SEQUENCE OF OPERATION
COOLING – Circuit R-Y makes at thermostat pulling
in compressor contactor, starting the compressor and
outdoor motor. The G (indoor motor) circuit is
automatically completed 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, circuit R-W1 make at the thermostat 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.
COMPRESSOR CONTROL MODULE
The compressor control module 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 Break Timer
On initial power up or anytime power is interrupted to
the unit, the delay on make period begins, which will be
2 minutes plus 10% of the delay on break setting. When
the delay on make is complete and the high pressure
switch and low pressure switch is closed, the compressor
contactor is energized. Upon shutdown, the delay on
break timer starts and prevents restart until the delay on
break and delay on make periods have 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 on
break 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 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 reenergize 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 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.
ADJUSTMENTS
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
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.
Typical Settings for Dual Unit Installation:
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 later in the
manual covering all models. It is imperative to match
the correct pressure table to the unit by model number.
See Table 6.