Johnson Controls VPC, Installation, Operation & Maintenance Instructions Manual

Page: 13 / 24

FORM 145.20-IOM1 (908)
13
JOHNSON CONTROLS
14. AIR FILTERS
All return air entering the unit must be filtered. The return
air is drawn from inside of the unit closet, which serves
as a return air plenum. a return air opening on a closet
must be furnished prior to the unit installation, either on
the closet door or one of the side walls.
Fresh air for ventilation is drawn in through an adjust-
able intake damper, which is accessible through the
compressor compartment access door. a washable
polypropylene mesh filter is provided to prevent dust and
insects from entering the indoor circulating air.
FILTER INSTALLATION
Air filters are required to keep the air
conditioning coil, and blower motor
clean. The return air filter can be re -
moved from either side (closet space
permitting), or from the front of the unit.
Push the filter all way up into the top
filter flange, slide it into the position and
let it drop into the bottom flange.
RECOMMENDED FILTERS SIZE
unit Size Filter Size
3/4 Ton 20” x 20” x 1”
1 Ton 20” x 20” x 1”
1-1/2 Ton 20” x 20” x 1”
2 Ton 20” x 20” x 1”
The fresh air intake filter can be removed through the
compressor access door. The filter pad is retained be -
hind a small retaining bracket, which is secured to the
intake damper assembly with a single screw. Remove
the screw and bracket, and extract the filter for inspec -
tion and cleaning.
15. ELECTRICAL CONNECTIONS
Check the voltage and phase listed on the unit rating
plate, before installation, to be sure the power supply is
correct. If the compressor fails as the result of installa-
tion or improper voltage, the compressor is not replace-
able under warranty and the manufacturer will not be
responsible for the cost of replacement. The minimum
and maximum operating voltages, and fuse sizes, are
listed on the unit rating plate.
The power leads must be brought to the entry hole
provided in the unit control box. Line voltage connec-
tion is made to a manufacturer supplied disconnect
switch placed inside of the unit main electrical box. Main
electrical supply entry hole is provided on the top of all
vPC/vPP units.
16. INSTALLING ELECTRICAL WIRING
Provide unit with its own separate elec -
trical circuit, means of circuit protec -
tion and electrical disconnect switch.
Follow current National Electrical Code
ANSI/NFPA 70, CSA C22.1 C.E.C. Part
1, and state and local codes. Failure
to provide these shut-off means could
cause electrical shock or fire, resulting
in damage, injury or death.
Install proper electrical grounding source to green wire
conductor in unit junction box. Follow current National
Electrical Code aNSI/NFPa 70 and local codes, or CSa
C22.1 Canadian Electrical Code Part 1.
Unit must have proper electrical ground.
Failure to provide a proper electrical
ground could cause electrical shock
or fire, resulting in damage, injury or
death.
Select a location for room thermostat that is away from
supply air registers, on draft-free interior wall, and not
near lights, television, direct sunlight, or other heat
sources.