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INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE AIR CONDITIONERS
MODELS
WA381
WA423
WA484
WA491
WA602
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
Manual : 2100-398D
Supersedes: 2100-398C
File:
Date:
Volume III Tab 16
01-16-09
Manual 2100-398D
Page 1 of 21
Contents
Getting Other Information and Publications 3
Wall Mount General Information
Heat Pump Wall Mount Model Nomenclature .......... 4
Shipping Damage .................................................... 7
General ................................................................ 7
Duct Work ................................................................ 8
Filters ................................................................ 8
Fresh Air Intake ....................................................... 8
Condensate Drain .................................................... 8
Installation Instructions
Wall Mounting Information ....................................... 9
Mounting the Unit .................................................... 9
Wiring – Main Power ............................................. 14
Wiring – Low Voltage Wiring ................................. 14
Start Up
Important Installer Note ......................................... 16
High Pressure Switch ............................................ 16
Three Phase Scroll Compressor Start Up .............. 16
Phase Monitor ....................................................... 16
Condenser Fan Operation ..................................... 16
Service Hints ......................................................... 16
Sequence of Operation .......................................... 17
Compressor Control Module .................................. 17
Adjustments ........................................................... 17
Pressure Service Ports .......................................... 17
Troubleshooting
Fan Blade Setting Dimensions .............................. 18
Removal of Fan Shroud ......................................... 18
Refrigerant Charge ................................................ 18
Pressure Table – Cooling ...................................... 20
Optional Accessories ............................................. 21
Figures
Figure 1 Unit Dimensions ...................................... 5
Figure 2 Fresh Air Damper Assembly ................... 8
Figure 3 Mounting Instructions ............................ 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 Unit 24V Terminal Board ....................... 15
Figure 9 Fan Blade Setting ................................. 18
Tables
Table 1 Electric Heat Table .................................. 4
Table 2 Electrical Specifications ................ 6 and 7
Table 3 Thermostat Wire Size ........................... 14
Table 4 Wall Thermostat .................................... 14
Table 5 Fan Blade Dimensions .......................... 18
Table 6 Refrigerant Charge ............................... 18
Table 7 Indoor Blower Performance .................. 18
Table 7A Indoor Blower Performance .................. 19
Table 8 Recommended Airflow .......................... 19
Table 9 Maximum ESP Electric Heat Only ........ 19
Table 9A Maximum ESP Electric Heat Only ........ 19
Table 10 Pressure Table ...................................... 20
Table 11 Optional Accessories ............................ 21
Manual 2100-398D
Page 2 of 21
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.
FOR MORE INFORMATION, CONTACT
THESE PUBLISHERS:
ACCA Air Conditioning Contractors of America
1712 New Hampshire Ave. N.W.
Washington, DC 20009
Telephone: (202) 483-9370
Fax: (202) 234-4721
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
ANSI American National Standards Institute
11 West Street, 13th Floor
New York, NY 10036
Telephone: (212) 642-4900
Fax: (212) 302-1286
ASHRAE American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc.
1791 Tullie Circle, N.E.
Atlanta, GA 30329-2305
Telephone: (404) 636-8400
Fax: (404) 321-5478
NFPA National Fire Protection Association
Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: (800) 344-3555
Fax: (617) 984-7057
Manual 2100-398D
Page 3 of 21
WALL MOUNT GENERAL INFORMATION
AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE
CAPACITY
38 - 3 Ton
42 - 3½ Ton
48 - 4 Ton
60 - 5 Ton
WA 42 3 – A 10 X X X X X A
MODEL NUMBER REVISIONS
VOLTS & PHASE
A - 230/208/60/1
B - 230/208/60/3
C - 460/60/3
KW
CONTROL MODULES
(See Spec. Sheet S3208 or
S3348 for the WA381 & WA491)
COLOR OPTIONS
X - Beige (Standard)
1 - White
2 - Mesa Tan
4 - Buckeye Gray
5 - Desert Brown
6 - Dark Bronze
COIL OPTIONS
X - Standard
1 - Phenolic Coated Evaporator
2 - Phenolic Coated Condenser
3 - Phenolic Coated Evaporator and Condenser
OUTLET OPTIONS
X - Front (Standard)
VENTILATION OPTIONS
X - Barometric Fresh Air Damper (Standard)
B - Blank-off Plate
M - Motorized Fresh Air Damper
V - Commercial Ventilator - Motorized with Exhaust
E - Economizer (Internal) - Fully Modulating with Exhaust
R - Energy Recovery Ventilator - Motorized with Exhaust
FILTER OPTIONS
X - One Inch Throwaway (Standard)
W - One Inch Washable
P - Two Inch Pleated
NOTE: All vent options are without exhaust capability. May require separate field supplied barometric relief in building.
K W
5
6
8
9
1 0
1 5
1 8
2 0
M o d e l s
2 0 .
8
-
3 3 .
3
-
4 1 .
6
6 2 .
5
-
8 3 .
2
TABLE 1
ELECTRIC HEAT TABLE
W A 3 8 1 A
W A 4 2 3 A
W A 4 8 4 A
W A 4 9 1 A
W A 6 0 2 A
A
2 3 0 1
B T U A
2 0 8 1
B T U A
2 3 0 3
B T U
W A 3 8 1 B
W A 4 2 3 B
W A 4 8 4 B
W A 4 9 1 B
W A 6 0 2 B
A
2 0 8 3
B T U
1 7 0 5 0
-
2 7 2 8 0
-
3 4 1 3 0
5 1 2 0 0
-
6 8 2 6 0
1 8 .
1
-
2 8 .
8
-
3 6 .
2
5 4 .
0
-
7 2 .
1
1 2 8 0 0
-
2 0 4 5 0
-
2 5 6 0 0
3 8 4 0 0
-
5 1 2 0 0
-
1 4 .
4
-
2 1 .
7
-
3 6 .
2
4 3 .
3
-
-
2 0 5 0 0
-
3 0 6 0 0
-
5 1 2 0 0
6 1 4 3 0
-
-
1 2 .
5
-
1 8 .
7
-
3 1 .
2
3 7 .
5
-
-
1 5 3 6 0
-
2 3 0 3 0
-
3 8 4 0 0
4 6 1 0 0
-
-
7 .
2
-
1 0 .
8
-
1 7 .
3
-
-
W A 3 8 1 C
W A 4 2 3 C
W A 4 8 4 C
W A 4 9 1 C
W A 6 0 2 C
A
4 6 0 3
B T U
-
2 0 4 8 0
-
3 0 7 0 0
-
4 7 0 0 0
-
-
Manual 2100-398D
Page 4 of 21
Manual 2100-398D
Page 5 of 21
TABLE 2
ELECTRICAL SPECIFICATIONS
V
R a t e d o l t s &
P h a s e
M o d e l
W A 3 8 1 A 0 0 , A 0 Z
A 0 5
A 0 8
A 1 0
2 3 0 / 2 0 8 1
W A 3 8 1 B 0 0 , B 0 Z
B 0 6
B 0 9
2 3 0 / 2 0 8 3
W A 3 8 1 C 0 0 , C 0 Z
C 0 6
C 0 9
4 6 0 3
W A 4 2 3 A 0 0 , A 0 Z
A 0 5
A 1 0
A 1 5
A 2 0
2 3 0 / 2 0 8 1
W A 4 2 3 B 0 0 , B 0 Z
B 0 9
B 1 5
B 1 8
2 3 0 / 2 0 8 3
W A 4 2 3 C 0 0 , C 0 Z
C 0 9
C 1 5
W A 4 8 4 A 0 0 , A 0 Z
A 0 5
A 1 0
A 1 5
A 2 0
4 6 0 3
2 3 0 / 2 0 8 1
S I N G L E C I R C U I T
3
N o .
F i e l d
P o w e r
C i r c u i t s
M i n i m u m
C i r c u i t
A m p a c i t y
1
M a x i m u m
E x t e r n a l
F u s e o r
C i r c u i t
B r e a k e r
2
F i e l d
P o w e r
W i r e
S i z e
2
G r o u n d
W i r e
S i z e
A
C m i r p
3
M i n i m u m c u a c i i t t y
1
M a x i m
D U A L C I R C U I T
2 u m
E x t e r n a l F u s e o r C i r c u
B r e a k e r i t F i e l d
W i r e
P o w e r
S i z e
G
W i r r
2 o e u
S n i d z e
C K T A C K T B C K T A C K T B C K T A C K T B C K T A C K T B
1
1
1
1
1
1
1
1
1
1
1
1 o o r r 2
2
1
1
1
1
1 o r o r
2
2
1
1
1
1
1
1
1
1
1
1
1 3
1 7
2 6
3 6
3 6
5 9
8 5
1 1 0
3 5
3 5
5 9
8 5
1 1 0
2 4
3 4
5 2
6 0
2 5
3 2
4 7
5 8
2 0
2 4
3 3
1 1
1 3
1 7
1 5
2 0
3 0
5 0
5 0
6 0
9 0
1 1 0
3 5
3 5
5 0
6 0
5 0
5 0
6 0
9 0
1 1 0
3 5
3 5
5 0
6 0
3 0
3 0
3 5
1 5
1 5
2 0
8
6
8
8
1 0
1 0
8
1 4
1 4
1 2
6
4
2
8
8
1 4
1 2
1 0
8
8
6
6
6
4
8
8
2
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 4
1 4
1 2
N / A
N / A
N / A
5 6
5 6
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
5 9
5 9
1 0
1 0
1 0
8
6
1 0
1 0
1 0
1 0
1 4
1 2
1 0
1 0
1 0
1 0
8
6
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
6 0
6 0
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
6 0
6 0
N / A
N / A
N / A
2 6
5 2
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
2 6
5 2
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
6
6
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
6
6
N / A
N / A
N / A
3 0
6 0
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
3 0
6 0
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
1 0
6
N / A
N / A
N / A
1 0
6
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
1 0
1 0
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
1 0
1 0
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
1 0
1 0
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
1 0
1 0
W A 4 8 4 B 0 0 , B 0 Z
B 0 9
B 1 5
B 1 8
2 3 0 / 2 0 8 3
W A 4 8 4 C 0 0 , C 0 Z
C 0 9
C 1 5
4 6 0 3
W A 4 9 1 A 0 0 , A 0 Z
A 0 5
A 0 8
A 1 0
2 3 0 / 2 0 8 1
W A 4 9 1 B 0 0 , B 0 Z
B 0 6
B 0 9
2 3 0 / 2 0 8 3
W A 4 9 1 C 0 0 , C 0 Z
C 0 6
C 1 0
4 6 0 3
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
1 0
1 0
1 0
1 4
1 4
1 2
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 4
1 2
1 0
1 4
1 4
1 2
8
8
8
8
8
8
6
8
8
6
6
1 4
1 2
1 0
4 0
4 0
4 0
1 5
1 5
2 0
5 0
5 0
5 0
6 0
3 5
3 5
6 0
6 0
1 5
2 0
3 0
2 7
2 7
3 3
1 3
1 3
1 7
3 3
3 3
4 7
5 8
2 5
3 4
5 2
6 0
1 3
1 7
2 6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
T A B L E C O N T I N U E D O N P A G E 7
1
Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.
2
Based on 75° C copper wire. All wiring must conform to NEC and all local codes.
3
These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric
Code (latest revision), article 310 for power conductor sizing.
CAUTION: When more than one field power conductor circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than 3 conductors are in a raceway.
Manual 2100-398D
Page 6 of 21
T A B L E C O N T I N U E D F R O M P A G E 6
M o d e l
R a t e d
V o l t s &
P h a s e
W A 6 0 2 A 0 0 , A 0 Z
A 0 5
A 1 0
A 1 5
A 2 0
2 3 0 / 2 0 8 1
S I N G L E C I R C U I T
3 1 2 2
N o .
F i e l d
P o w e r
C i r c u i t s
M i n i m u m
C i r c u i t
A m p a c i t y
M a x i m u m
E x t e r n a l
F u s e o r
C i r c u i t
B r e a k e r
F i e l d
P o w e r
W i r e
S i z e
G r o u n d
W i r e
S i z e
M
A i
C n i r m p i
3 m c u a u c i i t m t y
D U A L C I R C U I T
1
M a x i m u m
E x t e r n a l F u s e o r C i r c u
B r e a k e r i t
2
F i e l d
W i r e
P o w e r
S i z e
C K T A C K T B C K T A C K T B C K T A C K T B
G
W i r r
2 o e u
S n i d z e
C K T A C K T B
1
1
1 o r o r
1
1
2
2
4 4
4 4
5 5
8 5
1 1 0
6 0
6 0
6 0
9 0
1 1 0
6
4
2
8
8
1 0
1 0
1 0
8
6
N / A
N / A
N / A
5 9
5 9
N / A
N / A
N / A
2 6
5 2
N / A
N / A
N / A
6 0
6 0
N / A
N / A
N / A
3 0
6 0
N / A
N / A
N / A
6
6
N / A
N / A
N / A
1 0
6
N / A
N / A
N / A
1 0
1 0
N / A
N / A
N / A
1 0
1 0
W A 6 0 2 B 0 0 , B 0 Z
B 0 9
B 1 5
B 1 8
2 3 0 / 2 0 8 3
W A 6 0 2 C 0 0 , C 0 Z
C 0 9
C 1 5
4 6 0 3
1
1
1
1
1
1
1
3 2
3 4
5 2
6 0
1 6
1 7
2 6
4 5
4 5
6 0
6 0
2 0
2 0
3 0
1 2
1 2
1 0
8
8
6
6
1 0
1 0
1 0
1 0
1 2
1 2
1 0
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
N / A
1
Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.
2
Based on 75° C copper wire. All wiring must conform to NEC and all local codes.
3
These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electric
Code (latest revision), article 310 for power conductor sizing.
CAUTION: When more than one field power conductor circuit is run through one conduit, the conductors must be derated. Pay special attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than 3 conductors are in a raceway.
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 2100-398D
Page 7 of 21
DUCT WORK
All duct work, supply and return, must be properly sized for the design air flow 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 9 & 9A 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.
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.
FILTERS
A 1-inch throwaway filter is supplied with each unit.
The filter slides into position making it easy to service.
This filter can be serviced from the outside by removing the service door. 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 loosening two (2) screws on each bracket assembly and sliding the brackets apart to the required width and retightening the four (4) screws.
FRESH AIR INTAKE
All units are built with fresh air inlet slots punched in the service panel.
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 2.
All capacity, efficiency and cost of operation information as required for Department of Energy
“Energyguide” Fact Sheets 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.
Any grille that meets with 5/8 inch louver criteria may be used. It is recommended that Bard 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.
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.
NOTE: If no return air duct is used, applicable installation codes may limit this cabinet to installation only in a single story structure.
FIGURE 2
FRESH AIR DAMPER
Manual 2100-398D
Page 8 of 21
INSTALLATION INSTRUCTIONS
WALL MOUNTING INFORMATION
1. Two holes for the supply and return air openings must be cut through the wall as shown in Figure 3.
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 is provided for ease of installation, but is not required.
2. The unit itself is suitable for 0 inch clearance, but the supply air duct flange and the first 3 feet of supply air duct require a minimum of 1/4 inch clearance to combustible material. If a combustible wall, use a minimum of 30½" x 10½" dimensions for sizing. However, it is generally recommended that a
1-inch clearance is used for ease of installation and maintaining the required clearance to combustible material. The supply air opening would then be
32" x 12". See Figures 3 and 4 for details.
3. Locate and mark lag bolt locations and bottom mounting bracket location. See Figure 3.
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.
4. Mount bottom mounting bracket.
5. Hook top rain flashing under back bend of top. Top rain flashing is shipped secured to the right side of the back.
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 3.
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 2100-398D
Page 9 of 21
Manual 2100-398D
Page 10 of 21
FIGURE 4
ELECTRIC HEAT CLEARANCE
SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR
WALL MOUNTED UNIT SHOWING 1/4 INCH
CLEARANCE TO COMBUSTIBLE SURFACES.
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.
Manual 2100-398D
Page 11 of 21
Manual 2100-398D
Page 12 of 21
FIGURE 5
WALL MOUNTING INSTRUCTIONS
SEE FIGURE 3 – MOUNTING INSTRUCTIONS
FIGURE 6
WALL MOUNTING INSTRUCTIONS
SEE UNIT DIMENSIONS, FIGURE
1, FOR ACTUAL DIMENSIONS
FIGURE 7
COMMON WALL MOUNTING INSTALLATIONS
Manual 2100-398D
Page 13 of 21
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.
WIRING – LOW VOLTAGE WIRING
230/208V, 1 phase and 3 phase equipment 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
240
208
RANGE
253 – 216
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).
Five (5) wires should be run from thermostat subbase to the 24V terminal board in the unit. A five conductor, 18 gauge copper, color-coded thermostat cable is recommended. The connection points are shown in
Figure 8.
TABLE 3
THERMOSTAT WIRE SIZE
T r a n s f o r m e r
V A F L A W i r e G a u g e
M a x i m u m
D i s t a n c e
I n F e e t
5 5 2 .
3
2 0 g a u g e
1 8 g a u g e
1 6 g a u g e
1 4 g u a g e
1 2 g u a g e
4 5
6 0
1 0 0
1 6 0
2 5 0
TABLE 4
WALL THERMOSTAT
P r e d o m i n a t e F e a t u r e s T h e r m o s t a t
8 4 0 3 0 5 7
T H 5 2 2 0 D 1 1 5 3
1 s t a g e C o o l , 1 s t a g e H e a t
E l e c t r o n i c N o n P r o g r a m m a b l e
A u t o o r M a n u a l c h a n g e o v e r
8 4 0 3 0 5 8
T H 5 2 2 0 D 1 1 5 1
2 s t a g e C o o l , 2 s t a g e H e a t
E l e c t r o n i c N o n P r o g r a m m a b l e
A u t o o r M a n u a l c h a n g e o v e r
(
8
1
4
1
0
2
3
0
-
-
0
4
6
4
0
5 )
3 s t a g e C o o l ; 3 s t a g e H e a t
P r o g r a m m a b l e / N o n P r o g r a m m a b l e E l e c t r o n i c
H P o r C o n v e n t i o n a l
A u t o o r M a n u a l c h a n g e o v e r
Manual 2100-398D
Page 14 of 21
FIGURE 8
UNIT 24V TERMINAL BOARD
Manual 2100-398D
Page 15 of 21
START UP
IMPORTANT INSTALLER NOTE
For improved start up performance wash the indoor coil with a dish washing detergent.
HIGH PRESSURE SWITCH
The WA381, WA484, WA491 and WA602 models are supplied with a remote reset high 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 ZR 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
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.
50 HZ models must have fan wired on low speed.
These models are factory wired on low speed.
SERVICE HINTS
1. Caution homeowner 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. Switching to heating cycle at 75° F or higher outside temperature may cause a nuisance trip of the remote reset high pressure switch. Turn thermostat off then on to reset the high pressure switch.
3. Check all power fuses or circuit breakers to be sure they are the correct rating.
4. Periodic cleaning of the outdoor coil to permit full and unrestricted airflow circulation is essential.
Manual 2100-398D
Page 16 of 21
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 of constant air circulation. On all 230 volt units there is a one-minute off delay on the blower motor.
460 volt models do not have an off delay. 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 the
WA391, WA484, WA491and WA602 models covered by this manual and is optional on the WA423 model.
The compressor control 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 if employed) is closed, the compressor contactor is energized. Upon shutdown, the delay or 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 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 or heat pump 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.
Manual 2100-398D
Page 17 of 21
TROUBLESHOOTING
FAN BLADE SETTING DIMENSIONS
Shown in Figure 9 is the correct fan blade setting dimension for proper air delivery across the outdoor coil.
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 9
FAN BLADE SETTING
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.
REFRIGERANT CHARGE
The correct system R-22 charge is shown on the unit rating plate. Optimum unit performance will occur with a refrigerant charge resulting in a suction line temperature (6" from compressor) as shown in Table 6.
TABLE 5
FAN BLADE DIMENSION
M o d e l
D i m e n s i o n
A
W A 3 8 1
W A 4 2 3
W A 4 8 4
W A 4 9 1
W A 6 0 2
1 .
7 5
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 screws holding fan shroud to condenser and bottom. Nine (9) screws.
M o d e l
W A 3 8 1
W A 4 2 3
W A 4 8 4
W A 4 9 1
W A 6 0 2
TABLE 6
REFRIGERANT CHARGE
R a t e d
A i r f l o w
1 1 0 0
1 4 0 0
1 5 5 0
1 2 5 0
1 7 0 0
9 5 O D
T e m p e r a t u r e
8 2 O D
T e m p e r a t u r e
5 0 4 8
5 2 5 4
4
6
8
4
-
-
4
6
6
6
5 4 5 6
4 8 4 6
5 3 5 5
6 5 6 7
4 7 4 5
6 0 6 2
The suction line temperatures in table above are based upon 80° F dry bulb / 67° F wet bulb (50% R.H.) temperature and rated airflow across the evaporator during cooling cycle.
E .
S .
P .
I n H
2
0
.
0
.
1
.
2
.
3
.
4
.
5
TABLE 7
INDOOR BLOWER PERFORMANCE
CFM @ 230V
-
W A 4 2 3 , W A 4 8 4
L o w 2 3 0 V H i g h 2 3 0 V
D r y C o i l
1 6 5 0
1 5 5 0
1 4 5 0
1 3 5 0
1 3
-
0 0
-
W e t
C o i l
1 6 0 0
1 5 0 0
1 4 0 0
1 3 0 0
1 1 7 5
-
D r y C o i l
1
1
1
1
1
1
8
7
6
5
3
2
8
7
3
0
7
5
5
0
5
0
0
0
W e t
C o i l
1 8 0 0
1 6 6 5
1 5 4 0
1 4 0 0
1 2 8 5
1 1 5 0
L o w 2 3 0 V
D r y C o i l
1 6 0 0
1 5 2 5
-
-
-
-
-
-
-
-
-
W e t
C o i l
-
-
1 4 5 0
1 3 7 5
-
-
-
-
-
-
W A 6 0 2
D r y C o i l
2
2
2
1
1
1
H i g h 2 3 0 V
2
1
0
8
7
6
0
0
0
7
7
5
0
0
0
5
5
0
W e t
C o i l
2 0 0 0
1 9 0 0
1 8 0 0
1 7 0 0
1 6 0 0
1 4 7 5
Table 7A on Page 19 for models WA381 and WA491
Manual 2100-398D
Page 18 of 21
E .
S .
P .
I n
H
2
O
.
0
.
1
.
2
.
3
TABLE 7A
INDOOR BLOWER PERFORMANCE
CFM @ 230V / 460V
H i g h S p e e d
D r y
C o i l
W e t
C o i l
1 6 2 5
1 4 7 5
1 3 5 0
1 1 5 0
1 4 7 5
1 3 5 0
1 1 5 0
8 2 5
W A 3 8 1
M e d i u m S p e e d
D r y
C o i l
W e t
C o i l
-
1 4
1 3
1 2
-
2 5
2 5
0 0
1
1
3
2
1
8
2
0
2
7
5
0
5
5
L o w S p e e d
D r y
C o i l
W e t
C o i l
1 1 2 5
1 1 0 0
-
1 0 0 0
-
1 1 0 0
1 0 0 0
-
8 5 0
-
H i g h S p e e d
D r y
C o i l
W A 4 9 1
W e t
C o i l
M e d i u m
D r y
C o i l
S p e e d
W
C e o i t l
1 7 0 0
1 5 5 0
1 4 0 0
1 2 5 0
1 5 5 0
1 4 0 0
1 2 5 0
1 1 0 0
1 4 7 5
1 3 7 5
1 2 5 0
1 1 0 0
1 3 7 5
1 2 5 0
-
1 1 0 0
-
M o d e l
W A 3 8 1
W A 4 2 3
W A 4 8 4
W A 4 9 1
W A 6 0 2
R a t e d
C F M *
1 1 0 0
1 4 0 0
1 5 5 0
1 2 5 0
1 7 0 0
TABLE 8
RECOMMENDED AIRFLOW
R a t e d
E S P *
.
1 5
.
3 0
.
2 0
.
2 0
.
3 0
R e c o m m e n d e d
A i r f l o w R a n g e
1 2 5 0 8 5 0
1 6 0 0 1 1 5 0
1 7 5 0 1 2 8 5
1 4 7 5 1 1 0 0
1 9 5 0 1 3 7 5
F a c t o r y S p e e d
C o n n e c t i o n
M e d i u m
H i g h
H i g h
H i g h
H i g h
TABLE 9
MAXIMUM ESP OF OPERATION
ELECTRIC HEAT ONLY
M o d e l W A 4 2 3 W A 4 8 4 W A 6 0 2
H i g h
S p e e d
L o w
S p e e d
H i g h
S p e e d
L o w
S p e e d
H i g h
S p e e d
L o w
S p e e d K W
A 0 5
A 1 0
A 1 5
A 2 0
B 0 0
B 0 9
B 1 5
B 1 8
C 0 9
C 1 5 .
.
.
.
.
.
.
.
.
5 0
.
5 0
5 0
5 0
5 0
5 0
5 0
5 0
5
5
0
0 .
.
.
.
.
.
.
.
.
5 0
.
5 0
5 0
4
5 0
5 0
5 0
5 0
5
5
5
0
0 .
.
.
.
.
.
.
.
.
5 0
.
5 0
5 0
5
5
5
0
5 0
5 0
5 0
5 0
0
0 .
.
.
.
.
.
.
.
.
5 0
.
5 0
5 0
4 5
5 0
5 0
5 0
5 0
5
5
0
0 .
.
.
.
.
.
.
.
.
5 0
.
5 0
5 0
5
5 0
5 0
5 0
5 0
5
5
0
0
0
.
5 0
.
5 0
.
5 0
.
4 0
.
5 0
.
5 0
.
5 0
.
5 0
.
5 0
.
5 0
Values shown are for units equipped with standard
1-inch throwaway filter or 1-inch washable filter.
Derate ESP by .15 for 2-inch pleated filters.
TABLE 9A
MAXIMUM ESP OF OPERATION
ELECTRIC HEAT ONLY
M o d e l
K W
W A 3 8 1 W A 4 9 1
H i g h
S p e e d
M e d
S p e e d
L o w
S p e e d
H i g h
S p e e d
M e d
S p e e d
A 0 5
A 0 8
A 1 0
B 0 6
B 0 9
C 0 6
C 0 9
.
3 0
.
3 0
.
3 0
.
4 0
.
4 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
2 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
4 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
.
4 0
.
3 0
.
3 0
.
3 0
.
3 0
.
3 0
Values shown are for units equipped with standard 1 inch throwaway filter or 1 inch washable filter. Derate ESP by .15 for 2 inch pleated filters.
Manual 2100-398D
Page 19 of 21
TABLE 10
PRESSURE TABLE
COOLING
Air Temperature Entering Outdoor Coil °F
M o d e l
W A 3 8 1
W
W
W
W
A
A
A
A
4
4
4
6
2
8
9
0
3
4
1
2
8 5
7 2 d e g d e g .
.
D B
W B
7 5
6 2 d e g d e g .
.
D B
W B
8 0 d e g .
D B
6 7 d e g .
W B
8 5
7 2 d e g d e g .
.
D B
W B
7 5
6 2 d e g d e g .
.
D B
W B
8 0
6 7 d e g .
D B d e g .
W B
8 5
7 2 d e g .
D B d e g .
W B
R e t u r n A i r
T e m p e r a t u r e
P r e s s u r e
7 5 d e g .
D B
6 2 d e g .
W B
8 0
6 7 d e g d e g .
.
D B
W B
8 5
7 2 d e g d e g .
.
D B
W B
7 5
6 2 d e g d e g .
.
D B
W B
8 0
6 7 d e g d e g .
.
D B
W B
8 5 d e g .
D B
7 2 d e g .
W B
7 5
6 2 d e g d e g .
.
D B
W B
8 0
6 7 d e g d e g .
.
D B
W B
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
L o w S i d e
H i g h S i d e
7 5
8 4
2 1 7
7 0
1 9 9
7 5
2 0 4
7 8
2 1 1
7 1
2 3 3
7 6
2 3 7
8 4
2 4 5
7 0
2 0 7
7 5
2 1 2
7 8
2 1 9
7 3
2 0 4
7 8
2 1 0
7 4
1 7 5
7 9
1 7 9
8 2
1 8 5
8 0
8 5
2 3 1
7 1
2 1 3
7 6
2 1 8
7 9
2 2 6
7 2
2 4 7
7 8
2 5 3
8 5
2 6 1
7 2
2 2 0
7 7
2 2 6
8 0
2 3 4
7 4
2 1 7
7 9
2 2 3
7 4
1 8 7
7 9
1 9 2
8 2
1 9 9
8 5
8 7
2 4 7
7 1
2 2 7
7 6
2 3 3
7 9
2 4 1
7 4
2 6 2
7 9
2 6 9
8 5
2 7 8
7 3
2 3 5
7 8
2 4 1
8 1
2 4 9
7 6
2 3 2
8 1
2 3 8
7 5
2 0 2
8 0
2 0 7
8 3
2 1 4
9 0
8 8
2 6 4
7 2
2 4 4
7 7
2 5 0
8 0
2 5 9
7 5
2 7 8
8 0
2 8 5
8 6
2 9 6
7 5
2 5 1
8 0
2 5 7
8 3
2 6 6
7 8
2 4 8
8 2
2 5 4
7 6
2 1 6
8 1
2 2 2
8 4
2 3 0
9 5
9 0
2 8 2
7 3
2 6 0
7 8
2 6 7
8 1
2 7 6
7 6
2 9 5
8 1
3 0 3
8 7
3 1 4
7 6
2 6 6
8 1
2 7 3
8 4
2 8 3
7 9
2 6 5
8 4
2 7 2
7 8
2 3 2
8 3
2 3 8
8 6
2 4 6
1 0 0
9 2
3 0 2
7 5
2 7 9
8 0
2 8 6
8 3
2 9 6
7 7
3 1 3
8 2
3 2 1
8 8
3 3 3
7 7
2 8 3
8 2
2 9 0
8 5
3 0 0
8 0
2 8 4
8 6
2 9 1
7 9
2 4 9
8 4
2 5 5
8 7
2 6 4
1 0 5
9 3
3 2 3
7 6
2 9 8
8 1
3 0 6
8 4
3 1 7
7 8
3 3 1
8 3
3 4 0
8 9
3 5 3
7 8
3 0 0
8 3
3 0 8
8 6
3 1 9
8 2
3 0 4
8 7
3 1 2
7 9
2 6 5
8 5
2 7 2
8 8
2 5 2
1 1 0
9 5
3 4 5
7 7
3 2 0
8 2
3 2 8
8 5
3 3 9
7 8
3 5 1
8 4
3 9 0
9 0
3 7 3
7 9
3 1 8
8 4
3 2 6
8 7
3 3 7
8 3
3 2 5
8 9
3 3 4
8 0
2 8 4
8 6
2 9 1
8 9
3 0 1
1 1 5
9 7
3 6 9
7 9
3 4 1
8 4
3 5 0
8 7
3 6 2
7 9
3 7 1
8 5
3 8 1
9 1
3 9 4
7 9
3 3 7
8 5
3 4 6
8 8
3 5 8
8 4
3 4 8
9 0
3 5 7
8 1
3 0 2
8 7
3 1 0
9 0
3 2 1
Low side pressure ± 2 PSIG
High side pressure ± 5 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 instructions.
NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check condenser fan wiring. See “Condenser Fan Operation” on Page 16.
Manual 2100-398D
Page 20 of 21
TABLE 11
OPTIONAL ACCESSORIES
E H W A 3 8 C 0 6
B O P 5
B F A D 5
M F A D 5
C R V 5
E I F M 5
W E R V A 5 B
W E R V C 5 B
C M A 6
C M A 1 0
C M A 1 3
C M C 1 5
C M A 1 6
C M A 1 8
W M C B 0 5 B
W M C D 0 1 C
W M C B 0 8 A
W M C B 0 9 A
W M C B 0 7 B
W M C B 0 5 A
W M C B 0 4 B
W M C B 0 6 B
P a r t
N u m b e r
E H W A 0 5 A 0 5
E H W A 0 5 A 0 8
E H W A 0 5 A 1 0
E H W A 0 5 A 1 5
E H W A 3 8 A 0 5
E H W A 3 8 A 0 8
E H W A 3 8 A 1 0
E H W A 4 9 A 0 5
E H W A 0 5 B 0 9
E H W A 0 5 B 1 5
E H W A 0 5 B 1 8
E H W A 3 8 B 0 6
E H W A 3 8 B 0 9
E H W A 4 9 B 0 6
E H W A 0 5 C 0 9 A
E H W A 0 5 C 1 5
D e s c r i p t i o n
H e a t e r P a c k a g e s
H e a t e r
H e a t e r
H e a t e r
P a c k a g e s
P a c k a g e s
P a c k a g e s
H e a t e r
H e a t e r
P a c k a g e s
P a c k a g e s
H e a t e r
H e a t e r
P a c k a g e s
P a c k a g e s
H e a t e r
H e a t e r
H e a t e r
P a c k a g e s
P a c k a g e s
P a c k a g e s
H e a t e r
H e a t e r
H e a t e r
P a c k a g e s
P a c k a g e s
P a c k a g e s
H e a t e r
H e a t e r
P a c k a g e s
P a c k a g e s
H e a t e r P a c k a g e s
B l a n k O f f P
B a r o m e t r i c l a
F r t e e s h A i r
M o t o r i z e d F r e s h A i r
D a m p e r
D a m p e r
C o m m e r c i a l
E c o n o m i z e r
V e n t i l a t o r w i t h E x h a u w s t i t h E x h a u s t
E n e r g y R e c o v e r y V e n t i l a t o r
E n e r g y R e c o v e r y V e n t i l a t o r
L o w A m b i e n t C o n t r o l
L P C + H P C + T D R
( L A C )
L P C + H P C + T D R
S t a r t K i t
L o w P r e s s u e
L P C + L A C
C o n t r o l
+ L A C
C i r c u i t
P u ll D i
B r e a k e r s c o n n e c t
K i t
K i t
C
C
C
C i i i i r r r r c c c c u u u u i i i i t t t t
B r e a k e r
B r e a k e r
B r e a k e r
B r e a k e r
C i r c u i t B r e a k e r
C i r c u i t B r e a k e r
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X
X X X X X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Manual 2100-398D
Page 21 of 21
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