Air Conditioning Wall-Mount Model Nomenclature

SERIES

NOMINAL

CAPACITY

38 - 3 Ton

49 - 4 Ton

61 - 5 Ton

W38 A 1

REVISION

TYPE

Air Conditioner

VOLTS & PHASE

A - 230/208/60/1

B - 230/208/60/3

C - 460/60/3

A10 X

KW 1

VENTILATION OPTIONS

(See Table Below)

FILTER OPTIONS

X- 1-Inch Fiberglass (MERV 2)

X

X

X

X

X

 

 

 

 

 

 

CONTROL MODULES

 

 

 

 

 

 

 

 

 

 

 

 

(See Chart Below)

 

 

 

 

 

COIL OPTIONS

 

 

 

 

 

X - Standard

 

COLOR OPTIONS

 

1 - Phenolic Coated Evaporator

 

X - Beige (Standard)

 

2 - Phenolic Coated Condenser

 

1 - White

 

 

 

3 - Phenolic Coated Evaporator

 

4 - Buckeye Gray

 

and Condenser

 

5 - Desert Brown

 

 

 

8 - Dark Bronze

OUTLET OPTIONS

A - Aluminum

X - Front (Standard)

S - Stainless Steel

 

1For 0KW and circuit breakers (230/208 Volt) or pull disconnects (460 Volt) applications, insert 0Z in the KW field of the model number.

P- 2-Inch Pleated (MERV 8)

W - 1-Inch Washable

Ventilation Options

Models

 

W38A1, W49A1, W61A1

 

 

Description

Factory Installed

 

Field Installed

Code No.

 

Part No.

 

 

 

 

 

 

 

Barometric Fresh Air Damper - Standard

X

 

BFAD-5

 

 

Blank-Off Plate

 

B

 

BOP-5

 

 

Motorized Fresh Air Damper

 

M

 

MFAD-5

 

 

Commercial Ventilator - Spring Return w/Exhaust

V

 

CRVS-5

 

 

Commercial Ventilator - Power Return w/Exhaust

P

 

CRVP-5

 

 

Economizer - School Versions, Enthalpy

4

S

 

ECONWMS-E5

23

Economizer - Equipment Bldg., Enthalpy 5

W

 

ECONWMT-E5

2

Economizer - Equipment Bldg., DB Temp 5

T

 

ECONWMT-T5 2

Energy Recovery Ventilator - 230 Volt

3

R

 

ERVF-A5

1

Energy Recovery Ventilator - 460 Volt

3

R

 

ERVF-C5

1

Door Kit for ERVF (Required)

 

N/A

 

WMDK5-

3

1Intake and exhaust can be independently adjusted.

2Insert color to match unit ("X" = Beige; "4" = Buckeye Gray; etc.)

3WMDK Door Kit must be ordered in addition to ERVF Assembly and ECONWMS & color matched to unit ("X" = Beige; "4" = Buckeye Gray; etc.)

4 Partial Full Flow (75% of Rated Cooling CFM). All ECONWMS versions have 3" deep intake hood. 5 Full Flow (100% of Rated Cooling CFM). ECONWMT5 has 18" deep intake hood.

Air Conditioning Control Modules

 

 

 

W38A1, W49A1, W61A1

 

 

 

AVAILABLE CONTROL OPTIONS

 

 

 

Models with Scroll Compressors

 

 

 

 

 

 

 

 

HPC 1

LPC 2

CCM 3

LAC 4

ALR 5

 

SK 6

ODT 8

DDC 9

Factory Installed Code

Field Installed Part

STD

STD

STD

 

 

 

STD

 

 

X

N/A

 

STD

STD

STD

￿

 

 

STD

 

 

E

CMA-28

STD

STD

STD

￿

￿

 

STD

 

 

J

Factory Only

STD

STD

STD

 

 

 

STD

 

 

Field Installed Only

SK111

7

 

 

 

 

 

W38A1-A, W49A1-A

 

 

 

 

 

 

 

 

 

 

STD

STD

STD

 

 

 

STD

 

 

Field Installed Only

SK113

7

 

 

 

 

 

W61A1-A

 

 

 

 

 

 

 

 

 

 

STD

STD

STD

 

 

 

STD

￿

 

Field Installed Only

CMA-14

STD

STD

STD

￿

￿

 

STD

 

￿

V 

Factory Only

STD

STD

STD

 

 

 

STD

 

￿

Field Installed Only

CMA-24

STD = Standard equipment for these specified models.

1 HPC High pressure control is auto reset. Always used with compressor control module (CCM) which is included. See note 3. 2 LPC Low pressure control is auto reset. Always used with compressor control module (CCM) which is included. See note 3.

3CCM Compressor control module has adjustable 30-second to 5-minute delay-on-break timer. On initial power-up, or any time the power is interrupted, the delay- on-make will be 2 minutes plus 10% of the delay-on-break setting. There is no delay-on-make during routine operation of the unit. The module also provides the lockout feature (with 1 retry) for high and/or low-pressure controls, and a 2-minute timed bypass for low-pressure control.

4 LAC Low ambient control permits cooling operation down to 0°F.

5 ALR The alarm relay has a set of normally open and normally closed dry contacts to provide the ability to signal a condition of shutdown on either high or low pressure controls.

6 SK PTCR start kit is standard with all -A single phase models only. Increases starting torque 2-3x. Must be disconnected if SK111 or SK113 is used. Is not used or available for -B or -C three phase models.

7 Start capacitor and potential relay start kit can be used with all -A single phase models. Increases starting torque 9x. Not used for -B or -C three phase models. Do not use if CMC-15 is used. Use SK111 for W61A1-A only. Use SK113 for W38A1-A and W49A1-A only.

8 ODT. Outdoor thermostat is adjustable from 0 to 50°F. It is suitable for use as a compressor cutoff thermostat.

9 DDC. Incorporates 4 additional sensors: discharge air temperature, indoor blower airflow, compressor current, and dirty filter. These sensing devices function to input analog data such as temperature, as well as digital data such as air flow, compressor status or filter status.

“V” control module should be ordered in conjunction w/direct digital controller (DDC) model TCS24. Refer to DDC specification sheet S3280 for more information.

Form No.

S3412-1112

Supersedes

S3412-712

Page

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Bard manual Air Conditioning Wall-Mount Model Nomenclature, Ventilation Options, Models W38A1, W49A1, W61A1