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Manual 2100-234

I

Page

6 of 17

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
air 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.

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

Based on 75° C copper wire.  All wiring must conform to NEC and all local codes.

These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors.  Refer to the

National Electrical 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.

TABLE  2

ELECTRICAL HEAT SPECIFICATIONS

T

I

U

C

R

I

C

E

L

G

N

I

S

s

l

e

d

o

M

s

t

l

o

V

d

e

t

a

R

d

n

a

e

s

a

h

P

d

l

e

i

F

.

o

N

r

e

w

o

P

s

t

i

u

c

r

i

C

3

m

u

m

i

n

i

M

t

i

u

c

r

i

C

y

t

i

c

a

p

m

A

1

m

u

m

i

x

a

M

e

s

u

F

l

a

n

r

e

t

x

E

t

i

u

c

r

i

C

r

o

r

e

k

a

e

r

B

2

r

e

w

o

P

d

l

e

i

F

e

z

i

S

e

r

i

W

2

d

n

u

o

r

G

e

z

i

S

e

r

i

W

0

0

A

-

1

2

1

A

W

3

0

A

5

0

A

1

-

8

0

2

/

0

3

2

1
1
1

8

0

2

7

2

5

1

0

2

0

3

4

1

2

1

0

1

4

1

2

1

0

1

0

0

K

-

1

2

1

A

W

2

0

K

1

-

5

1

1

1
1

7

1

5

2

5

2

0

3

0

1

0

1

0

1

0

1

0

0

G

-

1

2

1

A

W

2

0

G

3

0

G

1

-

0

5

-

0

2

2

1
1
1

7

3

1

0

2

5

1

5

1

0

2

4

1

4

1

2

1

4

1

4

1

2

1

Summary of Contents for WA121

Page 1: ...PACKAGE AIR CONDITIONERS Model WA121 INSTALLATION INSTRUCTIONS Manual 2100 234I Supersedes 2100 234H File Volume III Tab 16 Date 08 01 07 Bard Manufacturing Company Inc Bryan Ohio 43506 Since 1914 Mo...

Page 2: ...nsion 16 Refrigerant Charge 16 Pressure Tables 17 Option Field Installed Accessories 17 Figures Figure 1 Unit Dimensions 5 Figure 2 Blower Damper Assembly 7 Figure 3 Mounting Instructions 9 Figure 4 W...

Page 3: ...esign for ACCA Manual D Residential Winter and Summer Air Conditioning and Equipment Selection For more information contact these publishers ACCA Air Conditioning Contractors of America 1712 New Hamps...

Page 4: ...0 8 0 1 5 0 8 0 2 0 4 5 7 1 1 8 1 5 7 2 3 1 1 d e d u l c n i s t t a w r e w o l b h t i W WA 12 1 A 00 X X X X X J MODEL NUMBER REVISIONS CONTROL MODULES E Low Ambient Control J Telecommunication VO...

Page 5: ...Manual 2100 234I Page 5 of 17 FIGURE 1 UNIT DIMENSIONS FACTORY BUILT AT 5 INCHES...

Page 6: ...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 Vent...

Page 7: ...service door A 2 inch pleated filter is also available as an optional accessory The internal filter brackets are adjustable to accommodate the 2 inch filter by bending the metal tabs holding the 1 in...

Page 8: ...unit a different size wall opening is required 2 Locate and mark lag bolt locations if desired See Figure 3 3 Hook top rain flashing under back bend of top Top rain flashing is shipped attached to the...

Page 9: ...Manual 2100 234I Page 9 of 17 FIGURE 3 MOUNTING INSTRUCTIONS...

Page 10: ...Manual 2100 234I Page 10 of 17 FIGURE 5 WALL MOUNTING INSTRUCTIONS FIGURE 4 WALL MOUNTING INSTRUCTIONS SEE FIGURE 3 MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS FIGURE 1 FOR ACTUAL DIMENSIONS...

Page 11: ...Manual 2100 234I Page 11 of 17 FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS...

Page 12: ...T E G N A R 0 4 2 3 5 2 6 1 2 8 0 2 0 2 2 7 8 1 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 operat...

Page 13: ...Manual 2100 234I Page 13 of 17 FIGURE 7 LOW VOLTAGE WIRING...

Page 14: ...ke is complete and the high pressure switch and low pressure switch if employed is closed the compressor contactor is energized Upon shutdown the delay on break time starts and prevents restart until...

Page 15: ...38 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...

Page 16: ...9 o D O e r u t a r e p m e T 2 8 o D O e r u t a r e p m e T 1 2 1 A W 0 0 4 6 5 4 5 7 6 5 6 TABLE 6 SUCTION LINE TEMPERATURE The suction line temperatures in Table 6 are based upon 80 F dry bulb 67...

Page 17: ...7 2 9 1 9 7 7 0 2 2 8 2 2 2 4 8 8 3 2 7 8 5 5 2 0 9 2 7 2 2 9 0 9 2 5 9 9 0 3 7 9 8 2 3 B D g e d 5 8 B W g e d 2 7 e d i S w o L e d i S h g i H 1 8 8 9 1 5 8 4 1 2 8 8 0 3 2 1 9 7 4 2 4 9 4 6 2 7 9...

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