Bard WL701-B, WL701-C, WL702-A User Manual

WALL MOUNTED PACKAGED

INSTALLATION INSTRUCTIONS

AIR CONDITIONER

Model:

WL701-B, WL701-C,

WL702-A

Bard Manufacturing Company Bryan, Ohio 43506

Since 1914...Moving ahead just as planned.

MIS-861

Manual No.: 2100-426 Supersedes: File: Volume III, Tab 16 Date: 01-01-03

CONTENTS

Getting Other Information and Publications

For more information, contact these publishers: ..... 1

Wall Mount General Information

Air Conditioner Wall Mount Model Nomenclature.... 2

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

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

Duct Work ............................................................... 4

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

Fresh Air Intake........................................................ 5

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

Installation Instructions

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

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

Typical Installations .................................................. 6

Wiring – Main Power.............................................. 6

Wiring – Low Voltage Wiring.................................. 7

Figures

Start Up

Important Installer Note ......................................... 12

Crankcase Heaters ................................................ 12

High Pressure Switch............................................. 12

Three Phase Scroll Compressor Start Up

Information............................................................. 12

Service Hints ......................................................... 13

Sequence of Operation.......................................... 13

Compressor Control Module .................................. 13

Adjustments........................................................... 14

Phase Monitor ....................................................... 14

Pressure Service Ports .......................................... 14

Troubleshooting

Fan Blade Setting Dimensions .............................. 15

Removal of Fan Shroud......................................... 15

Refrigerant Charge ................................................ 15

Pressure Chart ...................................................... 16

Optional Accessories............................................. 16

Tables

Figure 1 Unit Dimensions..................................... 3

Figure 2 Blower Damper Assembly...................... 5

Figure 3 Mounting Instructions............................. 7

Figure 4 Electric Heat Clearances ....................... 8

Figure 5 Wall-Mounting Instructions .................... 9

Figure 6 Wall-Mounting Instructions .................... 9

Figure 7 Common Wall-Mounting Instructions ... 10

Figure 8 Low Voltage Wiring...............................11

Figure 9 Start-Up Label...................................... 12

Figure 10 Fan Blade Setting ................................ 15

Table 1 Electrical Specifications ......................... 2

T able 2 Dimensions of Basic Unit ....................... 3

Table 3 Electric Heat Table ................................. 3

Table 4 Operating Voltage Range....................... 7

Table 5 Thermostat Wire Size ............................ 8

Table 6 Wall Thermostat and

Subbase Combinations .......................... 8

Table 7 Fan Blade Dimensions......................... 15

Table 8 Suction Line Temperatures .................. 15

Table 9 Indoor Blower Performance ................. 15

Table 10 CFM and ESP...................................... 15

Table 11 Maximum ESP of Operation

Electric Heat Only ................................ 15

Table 12 Cooling Pressure ................................. 16

Table 13 Optional Accessories ........................... 16

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 or

Residential Winter and Manual N Summer Air Conditioning

Low Pressure, Low Velocity Duct . ACCA Manual D or System Design for Winter and Manual Q Summer Air Conditioning

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

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 Refrigerating,

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

Manufactured under the following U.S. patent numbers:

5,485,878; 5,301,744; 5,002,116; 4,924,934;

4,875,520; 4,825,936

Manual 2100-426 Page 1

WALL MOUNT GENERAL INFORMATION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

MODEL NUMBER

CAPACITY

70 - 6 Ton

REVISION

VOLTS & PHASE

A - 230/208-1 B - 230/208/60-3 C - 460/60-3

NOTE: For 0KW and circuit breakers (230/208 V) or pull disconnects (460 V) applications, insert 0Z in the KW field of model number.

00 - No KW 0Z - No KW

05 - 5 K W 09 - 9 K W 10 - 10 KW 15 - 15 KW 18 - 18 KW

WL 70 1 – B 09 X X X X X J

VENTILATION OPTIONS

X - Barometric Fresh Air Damper

(Standard)

w/Circuit Breaker or Pull Disconnect

B - Blank-off Plate M - Motorized Fresh Air Damper V - Commercial Room Ventilator -

Motorized with Exhaust

E - Economizer (Internal) - Fully

Modulating with Exhaust

R - Energy Recovery Ventilator -

with Exhaust

COLOR OPTIONS

X - Beige

(Standard)

1 - White

FILTER OPTIONS

X - One Inch Throwaway

(Standard) W - One Inch Washable P - Two Inch Pleated

COIL OPTIONS

X - Standard 1 - Phenolic Coated Evaporator 2 - Phenolic Coated Condenser 3 - Phenolic Coated Evaporator

CONTROL MODULES

J - Standard on all

Models

and Condenser

OUTLET OPTIONS

X - Front (Standard)

TABLE 1

ELECTRICAL SPECIFICATIONS

tiucriCelgniStiucriClauD

fo.oN rewoP

sledoMdetaR

Z0A,00A-207LW 50A01A51A-

Z0B,00B-107LW 90B51B-

Z0C,00C-107LW 90C51C-

Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors.

j k

Based on 75°C copper wire. All wiring must conform to the National Electric Code (NEC) and all local codes. These "Minimum Circuit Ampacity" values are to be used for sizing the field power conductors. Refer to the

National Electric Code (latest version), Article 310 for power conductor sizing. CAUTION: When more than one filed power conductor circuit is run through one conduit, the conductors must be derated. Pay special attention to Note * of Table 310 regarding Ampacity Adjustment Factors when more than 3 conductors are in a raceway.

1-802/302 1-802/032 1-802/032 1-802/032

3-802/032

3-064

stiucriC

1 1 1

2ro1

1 1 1

ACM

84 84 95 58

63 63 25

71 71 62

POM

52 52 03

dleiF eriW eziS

21 21 01

dnuorG eriW eziS

01 01 01

21 21 01

ACM

TKC

POM

TKC

eriWdleiF

eziS

TKC

AN AN AN 01

AN AN AN

dnuorG

eziSeriW

TKC

Manual 2100-426 Page 2

TABLE 2

DIMENSION OF BASIC UNIT FOR ARCHITECTURAL AND

INSTALLATION REQUIREMENTS (NOMINAL)

htdiW

tinU

07LW244/1-228/7-498/7-98/7-928/7-518/7-928/7-34918/5-140361/11-24734/3-442/1-244/1-3348/7-3301

All dimensions in inches.

htpeD

thgieH

ylppuSnruteR

ABCB

EFGI J KL M NOPQ

FIGURE 1

UNIT DIMENSIONS

MIS-1416

SIDE VIEW FRONT VIEWBACK VIEW

TABLE 3

ELECTRIC HEAT TABLE

sledoMA-207LWB-107LWC-107LW

1-V0421-V8023-V0423-V8023-V064

WKSPMAHUTBSPMAHUTBSPMAHUTBSPMAHUTBSPMAHUTB

0.58.02050,711.81008,21------------------

0.9------------7.12006,037.81030,328.01007,03

0.016.14031,432.63006,52------------------

0.515.26002,151.45004,832.63002,152.13004,833.71000,74

Manual 2100-426 Page 3

SHIPPING DAMAGE

DUCT WORK

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.

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 10 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 1 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 4 and 5 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.

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 1 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.

CAUTION

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 inches.

Any grille that meets the 5/8 inch louver criteria, may be used. It is recommended that Bard Return Air Grille Kit RG-2 thru RG-5 or RFG-2 thru RFG-5 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 2100-426 Page 4

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 bending down the tabs to allow spacing for the 2 inch filters.

FRESH AIR INTAKE

All units are built with fresh air inlet slots punched in the service panel.

If the unit is equipped with the 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 minium 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.

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 2

BLOWER DAMPER ASSEMBLY

BLADE IS LOCKED CLOSED FOR SHIPPING

MIS-938

Manual 2100-426 Page 5

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