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3

TO CLEAN FRESH AIR INTAKE FILTER:

A. Follow steps A and B at left

“TO CHANGE SYSTEM FILTER”.

B. Gently pull out the filter from the

bottom.

C. Wash the filter with water.
D. Reinstall the filter, by sliding it into

the retaining rail.

E. Replace the access door and turn

the power on to the unit.

2. Keep the outdoor coil clean. Wash it down with a garden hose if

necessary. BE SURE THE UNIT DISCONNECT IS IN THE

“OFF” POSITION AND THAT ALL ELECTRICAL POWER TO

THE UNIT IS TURNED OFF BEFORE CLEANING THE

SYSTEM. 
Remove any loose grass, leaves, papers, etc., from the area

around the condenser coil. These could reduce the air

supply through the coil and reduce the amount of cooling

capacity. 

3. Since the air conditioner is located outdoors, it is exposed to all

weather elements. Treat it with a good automobile paste wax

twice a year (in the spring and fall).
Check with your contractor if you have any questions regarding

the maintenance or operation of your unit.

WARNING:

SERIOUS INJURY MAY RESULT IF

WATER  SPRAY  IS  DIRECTED  TOWARD  LIVE

ELECTRICAL  CONNECTIONS  OR  POWER

SOURCES. 

!

FILTER

SCREW

DAMPER

DOOR

CLOSED

2

INSULATION

1

INSTALLATION

The installer SHALL comply with all local, state, and federal codes

and/or regulations pertaining to this type of equipment and its

installation. Such codes and/or regulations should take precedence

over any recommendations contained herein in lieu of local codes.

Installations SHALL be made in accordance with the National

Electrical Code, local codes, and recommendations made by the

National Board of Fire Underwriters.

1. To eliminate noise from being transmitted into noise-

sensitive areas, the unit should NOT be installed on walls

adjoining bedrooms, sleeping quarters, or adjacent to

windows. 

2. Locating the unit as close as possible to the main duct

system or area to be conditioned, will prevent lengthy duct

runs and unnecessary thermal and air-pressure losses.

3. The clearance to combustibles is 0

"

on all sides, and 

1

/

4

"

for

the first three (3) feet of supply duct.

4. The condenser air inlets (left, right and bottom inlets) SHALL

be located at least 8

"

 away from walls or other obstructions

for unrestricted airflow.

5. The condenser air outlet should be located at least 6’ away

from any obstructions to prevent recirculation of condenser

air.

B. UNIT SITE LOCATION

A. CODES

7. Service clearance is 28

"

from the electrical box access panel

located on the front of the unit and 28

"

from the center,

upper, and lower front access panels.

8. The wall selected for unit installation MUST be able to or be

made to safely support the weight of the unit.

9. Do NOT locate where heat, lint or exhaust fumes will be

discharged on the unit (as from dryer vents).

1. The V Series model units have top rain flashing built onto the

unit. The bottom-mounting flange for all models is shipped

separately  and  in  place.  (Refer  to  “Section  J.  Unit

Installation” for the recommended use of the bottom flange.)

2. Electrical entrances are located on the right side, left side,

and back of all V Series units. Refer to “Section H. Electrical

Hook-up” for details.

3. Bend the lids of return and supply opening to form a return

and supply air collars and install air gaskets.

4. The supply and return air ducts should be checked to be sure they:

a. Match the openings on the unit to be installed.
b. Have the same distance between them vertically as the 

openings on the unit to be installed.

5. If the factory-installed filter is used on your installation,

access to the filter is made through the center panel on the

front of the unit. IF A REMOTE FILTER IS USED, SUCH AS

A FILTER GRILLE, THE FACTORY-INSTALLED FILTER

MUST BE REMOVED AND DISCARDED.

1. Properly-sized duct systems are critical for satisfactory

operation of any air conditioning system. All ductwork MUST

be correctly sized for the design air flow requirement of the

equipment.

2. The recommended operation duct static is to deduct 

0.07

"

W.C. for any size of heater 5 kW to 20 kW on factory-

or field-installed heaters. 

3. Ductwork routed through wall cavities, as well as any duct

not in conditioned space, MUST be insulated. Supply ducting

routed through exterior walls MUST be insulated with 1

"

insulation to the back of the unit.

4. Supply and return air ducts should be flush with the exterior

wall and sized to fit over the unit duct collars in order to

compress the collar air gasket.

5. If supply duct is flashed to the exterior of a building

constructed with combustible material, the flashing MUST be

insulated in order to maintain the required clearances to

combustible materials. Required clearance is 

1

/

4

"

for the first

three (3) feet of supply duct.

1. One-inch disposable filters are supplied standard in each

unit. Two-inch disposable filters can also be used and are

available as an option. The filter rack is adjustable to

accommodate 2

"

filters. The filter rack on this series is

adapted by bending the retaining brackets. Refer to the

Maintenance section for the procedures for changing the

filters.

2. If a filter grille is used in the installation, the filter should be

properly sized to allow a maximum velocity of 400 FPM.

THE  FACTORY-INSTALLED  FILTER  MUST  BE

REMOVED.

C. UNIT PREPARATION

D. DUCTWORK

E. FILTERS

14"

6. Bottom of the unit SHALL be located at least 12" away from

the ground or other obstructions for unrestricted airflow.

Summary of Contents for V SERIES

Page 1: ...Installation Operation and Maintenance V SERIES Wallmount Air Conditioners R410A Series REV 9 23 13 678629 V C ...

Page 2: ...ted behind the center front access panel TO CHANGE SYSTEM FILTER A Turn the power to the unit off at the unit disconnect The disconnect is located on the front of the V Series unit behind a small access door B Remove the front center access door from the unit C Remove and replace the filters with the type and size indicated in the table below D Replace the access door and turn on the power to the ...

Page 3: ...pport the weight of the unit 9 Do NOT locate where heat lint or exhaust fumes will be discharged on the unit as from dryer vents 1 The V Series model units have top rain flashing built onto the unit The bottom mounting flange for all models is shipped separately and in place Refer to Section J Unit Installation for the recommended use of the bottom flange 2 Electrical entrances are located on the ...

Page 4: ...ECTRICAL HOOK UP STAGING OF ELECTRIC HEAT All V Series units with electric heat assemblies above 10 kW may be wired for single or two stage heat These models come factory wired for single stage operation For two stage operation remove the jumper bar from between the W2 and E terminal Wire the first stage heat to terminal W2 Wire the second stage heat to terminal E V SERIES UNITS ARE FOR USE IN SIN...

Page 5: ...5 EXPLODED PARTS DRAWING 18 24 30 36 ...

Page 6: ...EXPLODED PARTS DRAWING 48 60 6 ...

Page 7: ...SEMBLY LEFT SIDE PANEL V48 60 X X X X X X 10 2021 5012 ASSEMBLY REAR PANEL V18 24 X X 10 2022 5012 ASSEMBLY REAR PANEL V30 36 X X X X X 10 2023 5012 ASSEMBLY REAR PANEL V48 60 X X X X X X 11 2021 5003 ASSEMBLY DIVIDER DECK V18 24 X X 11 2022 5003 ASSEMBLY DIVIDER DECK V30 36 X X X X X 11 2023 5003 ASSEMBLY DIVIDER DECK V48 60 X X X X X X 12 2021 5005 ASSEMBLY BLOWER PAN V18 24 X X 12 2022 5005 ASS...

Page 8: ...3 POLE 3P 60 AMP X X X X 451955 DISCONNECT KIT 460V X X X 451956 DISCONNECT KNOB 460V X X X 0415 0028 LOW VOLTAGE TERMINAL BOARD X X X X X X X X X X X X X 451049 JUMPER BAR ASSEMBLY 451840 OPTION BOARD 454388 LOW PRESSURE SWITCH 451988 HIGH PRESSURE SWITCH 451992 FAN CYCLE SWITCH Part Numbers are Subject to Change OPTIONAL OPTIONAL ELECTRICAL COMPONENTS PARTS LIST OPTIONAL OPTIONAL OPTIONAL PART N...

Page 9: ... 4 2 10 10 10 8 6 29 55 52 52 30 60 60 60 10 6 6 6 10 10 10 10 V448B00A3 6 11 15 18 208 230 3 1 1 1 1 1 24 24 36 48 57 30 30 60 60 60 12 12 8 8 6 12 12 10 10 10 V448B00A4 6 11 15 460 3 1 1 1 1 12 12 19 25 15 15 30 30 14 14 14 10 14 14 14 10 V460B00A1 5 10 15 20 208 230 1 1 1 1 1 OR 2 1 OR 2 44 44 57 83 109 60 60 60 90 125 8 8 6 4 2 10 10 10 8 6 31 57 52 52 60 60 60 60 10 6 6 6 10 10 10 10 V460B00A...

Page 10: ...10 ...

Page 11: ...11 ...

Page 12: ...12 ...

Page 13: ...I J K L M N P Q R S T U V W X Y Z 18 24 36 34 185 8 281 16 12 201 2 8 17 8 20 289 16 11 8 711 2 21 2 101 2 181 2 261 2 347 8 11 8 16 32 115 16 29 16 291 2 271 8 275 8 30 36 40 38 185 8 281 2 14 18 8 17 8 28 289 16 11 8 711 2 21 2 101 2 181 2 261 2 39 11 4 181 4 363 8 2 29 16 291 2 27 1 8 315 8 48 60 431 8 41 24 271 2 16 30 10 21 4 30 361 2 11 8 87 21 2 101 2 181 2 261 2 42 11 8 193 4 391 2 61 2 33...

Page 14: ...14 ...

Page 15: ...14 NOTES 15 ...

Page 16: ...ount products Illustrations part numbers and others cover the general appearance of the units at the time of publication and the manufacturer reserves the right to make changes in design and construction at any time without notice For replacement parts contact National Coil Company 1998 FM 2011 Longview TX 75603 Phone 903 643 2261 Fax 903 643 2222 ...

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