Johnson Controls VPC Guide

Single Package Vertical
R-22 A/C & HP
Supersedes: 145.20-IOM1 (708) Form 145.20-IOM1 (908)
UNIT MODELS
VPC, VPP, & VPH
INSTALLATION, OPERATION
& MAINTENANCE INSTRUCTIONS
Unit Model VPC
R-22 Single Packaged Vertical A/C Units
w/ Optional Electric Heat
Unit Model VPP
R-22 Single Packaged Vertical Heat Pumps
w/ Optional Electric Heat
Unit Model VPH
R-22 Single Packaged Vertical A/C Units
w/ Optional Hot Water Heat
Cooling Capacities
9,000, 12,000, 18,000 & 24,000 Btu/Hr.
Electric Heat Capacities
2kw, 3kw, 4kw, 5kw, 8kw, & 10kw

JOHNSON CONTROLS
2
FORM 145.20-IOM1 (908)
This equipment is a relatively complicated apparatus.
During installation, operation, maintenance or service,
individuals may be exposed to certain components or
conditions including, but not limited to: refrigerants, oils,
materials under pressure, rotating components, and
both high and low voltage. Each of these items has the
potential, if misused or handled improperly, to cause
bodily injury or death. It is the obligation and respon-
sibility of operating/service personnel to identify and
recognize these inherent hazards, protect themselves,
and proceed safely in completing their tasks. Failure to
comply with any of these requirements could result in
serious damage to the equipment and the property in
IMPORTANT!
READ BEFORE PROCEEDING!
GENERAL SAFETY GUIDELINES
which it is situated, as well as severe personal injury or
death to themselves and people at the site.
This document is intended for use by owner-authorized
operating/service personnel. It is expected that this
individual possesses independent training that will en-
able them to perform their assigned tasks properly and
safely. It is essential that, prior to performing any task
on this equipment, this individual shall have read and
understood this document and any referenced materials.
This individual shall also be familiar with and comply with
all applicable governmental standards and regulations
pertaining to the task in question.
SAFETY SYMBOLS
The following symbols are used in this document to alert the reader to areas of potential hazard:
All wiring must be in accordance with published specications and must be performed ONLY
by qualied service personnel. Johnson Controls will not be responsible for damages/problems
resulting from improper connections to the controls or application of improper control signals.
Failure to follow this will void the manufacturer’s warranty and cause serious damage to prop-
erty or injury to persons.
DANGER indicates an imminently haz-
ardous situation which, if not avoided,
will result in death or serious injury.
CAUTION identies a hazard which could
lead to damage to the machine, damage
to other equipment and/or environmental
pollution. Usually an instruction will
be given, together with a brief expla-
nation.
WARNING indicates a potentially haz-
ardous situation which, if not avoided,
could result in death or serious injury.
NOTE is used to highlight additional in-
formation which may be helpful to you.

FORM 145.20-IOM1 (908)
3
JOHNSON CONTROLS
CHANGEABILITY OF THIS DOCUMENT
In complying with Johnson Controls policy for continu-
ous product improvement, the information contained
in this document is subject to change without notice.
While Johnson Controls makes no commitment to up-
date or provide current information automatically to the
manual owner, that information, if applicable, can be
obtained by contacting the nearest Johnson Controls
service ofce.
It is the responsibility of operating/service personnel as
to the applicability of these documents to the equipment
in question. If there is any question in the mind of oper-
ating/service personnel as to the applicability of these
documents, then, prior to working on the equipment, they
should verify with the owner whether the equipment has
been modied and if current literature is available.
Work on this equipment should only be done by properly trained personnel who are qualied to
work on this type of equipment. Failure to comply with this requirement could expose the worker,
the equipment and the building and its inhabitants to the risk of injury or property damage.
The instructions are written assuming the individual who will perform this work is a fully trained
HVAC & R journeyman or equivalent, certied in refrigerant handling and recovery techniques, and
knowledgeable with regard to electrical lock out/tag out procedures. The individual performing
this work should be aware of and comply with all national, state and local safety and environ-
mental regulations while carrying out this work. Before attempting to work on any equipment,
the individual should be thoroughly familiar with the equipment by reading and understanding
the associated service literature applicable to the equipment. If you do not have this literature,
you may obtain it by contacting a Johnson Controls Service Ofce.
Should there be any question concerning any aspect of the tasks outlined in this instruction,
please consult a Johnson Controls Service Ofce prior to attempting the work. Please be aware
that this information may be time sensitive and that Johnson Controls reserves the right to revise
this information at any time. Be certain you are working with the latest information.

JOHNSON CONTROLS
4
FORM 145.20-IOM1 (908)
TABLE OF CONTENTS
NOMENCLATURE................................................................ 5
PREPARING TO INSTALL UNIT .......................................... 6
IMPORTANT SAFETY RULES............................................. 6
MEETING CODES ............................................................... 6
UNPACKING ........................................................................ 9
NORMAL INSTALLATION .................................................... 9
CLEARANCES ..................................................................... 9
WALL OPENING .................................................................. 9
WALL SLEEVE ..................................................................... 9
EXTERIOR GRILL.............................................................. 11
UNIT TO SLEEVE ATTACHMENT...................................... 11
CONDENSATE DRAIN PIPING ......................................... 11
HOT WATER PIPING (VPH) .............................................. 11
INSTALLING DUCTWORK................................................. 12
FILTER INSTALLATION ..................................................... 13
ELECTRICAL CONNECTIONS.......................................... 13
INSTALLING ELECTRICAL WIRING ................................. 13
SEQUENCE OF OPERATION ........................................... 15
UNIT SECTION START-UP CHECKLIST........................... 16
SYSTEM BALANCE ........................................................... 17
MAINTAINING UNIT IN GOOD WORKING ORDER...........17
REFRIGERANT CHARGES ............................................... 17
WIRING DIAGRAM -
COOLING/COOLING W/ ELECTRIC HEAT....................... 18
WIRING DIAGRAM
HEAT PUMP W/ ELECTRIC HEAT .................................... 19
WIRING DIAGRAM
COOLING W/ HYDRONIC HEAT ....................................... 20
WARRANTY POLICY......................................................... 23
VPC / VPP, and VPH models provide a complete air-conditioning and optional heating system as an all-in-one pack-
age, capable of providing total heating and cooling functions for a single zone or multiple rooms. Specically designed
for convenient through-the-wall installation in residential high rise and hospitality industry applications. The all-indoor
design eliminates the need for unsightly exterior equipment, thereby maintaining architectural esthetics.
All units are shipped completely wired and factory tested. The refrigeration section features enhanced refrigeration
coils, a bi-ow thermostatic expansion valve for refrigerant control, and a high efciency Scroll or rotary compres-
sor. The VPP units incorporate a reversing valve to allow operation on a heat pump cycle. Air circulating fans are
centrifugal, direct driven. The indoor fan motor allows operation at three different fan speeds.
The standard VPC & VPH units may be operated on the cooling cycle to an outdoor ambient of 40ºF. The low ambient
cooling package will cycle the compressor to prevent frosting of the evaporator at low outdoor ambient temperatures.
The VPP unit locks out compressor operation (refrigerant heating) at outdoor ambient temperatures below 40ºF.

FORM 145.20-IOM1 (908)
5
JOHNSON CONTROLS
VPC & VPP UNIT NOMENCLATURE
VP C 05 24 12 A - A
Product Category
VP= Single Packaged Vertical Unit
Unit Type
C= Air Conditioner
P= Air to Air Heat Pump
Electric Heat Capacity
Nominal Heating Capacity in kW
00= NO Heat (VPC Units Only)
02= 2kW
03= 3kW
04= 4kW
05= 5kW
06= 6kW
08= 8kW
10= 10kW
Nominal Cooling Capacity
36= 36,000 Btuh
30= 30,000 Btuh
24= 24,000 Btuh
18= 18,000 Btuh
12= 12,000 Btuh
09= 9,000 Btuh
Voltage
12= 208-230-1-60
System Type
A= R-22 Refrigerant
Service Digit
Factory Assigned
VPH UNIT NOMENCLATURE
VP H 02 24 12 A - A
Product Category
VP= Single Packaged Vertical Unit
Unit Type
H= Air Conditioner w/ Hydronic Heat
Hydronic Heat Capacity
Hot Water Coil Type
02= 2 Row Coil
03= 3 Row Coil Nominal Cooling Capacity
36= 36,000 Btuh
30= 30,000 Btuh
24= 24,000 Btuh
18= 18,000 Btuh
12= 12,000 Btuh
Voltage
12= 208-230-1-60
System Type
A= R-22 Refrigerant
Service Digit
Factory Assigned

JOHNSON CONTROLS
6
FORM 145.20-IOM1 (908)
After installing the unit, show the user
how to turn off the electricity to unit.
Point out control and switch locations
for turning off the electricity.
Make sure user understands the importance of following
all safety precautions.
1. PREPARING TO INSTALL UNIT
A. Literature
Review this Manual and the Users’ Manual Infor-
mation.
After installing the unit; give this Installer’s Informa-
tion Manual to the end user. If you need help on
any of the installation instructions or other matters
relating to the unit, contact the ofce where you
bought the unit. You may also refer to the unit
rating plate for a contact name.
2. IMPORTANT SAFETY RULES
Read and exactly follow these rules.
Failure to do so could cause improper
unit operation, resulting in damage,
injury or death.
a) Signal words: To alert you to potential hazards, we
use the signal words “WARNING” and “CAUTION”
throughout this manual. “WARNING” alerts you
to situations that could cause serious injury or
death. “CAUTION” alerts you to situations that
could cause minor or moderate injury or property
damage. To help you, we use the words “must”
and “should” in this manual. “Must” is mandatory.
“Should” is advisory.
b) DO NOT install this unit outdoors.
3. MEETING CODES
Before installing unit, make sure you know all ap-
plicable codes. National, state and local codes
may take precedence over any instructions in this
manual. Be sure to consult:
- Authorities having jurisdiction over units;
- Local code authorities for information on electrical
wiring.

FORM 145.20-IOM1 (908)
7
JOHNSON CONTROLS
FRONT
20 x 20 x 1
FILTER
Supply Air
Return
Air
Outdoor Air
Discharge
Outdoor Air
Intake
6820
20
411/4
17 1/2
11
10
Electric Heater
Access Panel
Compressor/Electrical Box
Access
Evap Blower
/Motor Access
Disconnect
Switch
Electrical
Connections
Low Voltage
Connection
FIG. 1 - VPC / VPP DIMENSIONS & CONNECTION LOCATIONS
LD13498

JOHNSON CONTROLS
8
FORM 145.20-IOM1 (908)
FRONT
20 x 20 x 1
FILTER
Supply Air
Return
Air
Outdoor Air
Discharge
Outdoor Air
Intake
20
123/8
701/2
17 1/2
411/4
Evap Blower
/Motor Access
Water
In/Out
Water
Out/In
Compressor/Electrical
Box Access
20
14 7/8
Unit
Disconnect
Switch
High Voltage
Connection
Low Voltage
Connection
LD13499
FIG. 2 - VPH DIMENSIONS & CONNECTION LOCATIONS

FORM 145.20-IOM1 (908)
9
JOHNSON CONTROLS
4. UNPACKING
a) Check the unit for indications of damage in ship-
ment. Notify the Transportation company of any
damage and note the damage on the shipping
receipt.
Rough handling may dislocate internal
components.
b) Allow the shipping base to remain with the unit
until it is ready to be set in its nal location.
c) Rotate blowers to assure free movement.
d) The compressor is mounted on neoprene isolators
with metal spacing sleeves inside and secured with
nuts, which must be snug against the metal spacer
sleeves.
e) Check all refrigeration tubing to assure that it does
not rub against any other parts.
5. NORMAL INSTALLATION
This unit is designed for indoor installation adjacent
to an outside wall having an opening for outdoor air
ow. The air ow products must:
a) Discharge directly to the outside.
b) Discharge away from any obstructions which could
cause discharged air recirculation.
6. CLEARANCES
The unit is design certied for closet installation with
the minimum clearances to combustible materials as
stated on the data label. No clearance is required
from the top, sides, or back of the unit. A minimum
of 1 inch clearance is required from the front to any
combustible materials. A combustible door may be
placed 6 inches from the front of the unit. When the
door is open there must be 30 inches clearance to
any obstruction, to allow sufcient access for service
and the replacement of parts.
Outside Wall Thickness 5”-8”
D = (29” – B)
Outside Wall Thickness 8”-12”
D = (33” – B)
Outside Wall Thickness 12”-15”
D = (36” – B)
7. WALL OPENING
A nished opening in an outside wall is required
for intake and exhaust of outdoor airow. The wall
opening required is 21-3/4” wide by 44” high. The
bottom edge of wall opening must be located at least
6” higher from nished oor
Consult local ordinances for building opening fram-
ing requirements.
8. WALL SLEEVE
A factory-made wall sleeve is required to nish
the wall opening. The sleeve should be positioned
with a minimum of ¼” protruding from the nished
outside wall face. This projection allows installation
of the exterior grille without interference from the
exterior nishing materials, and provides a right
angle surface to apply a caulking bead around the
wall penetration.
Use a spirit level or plumb line to make sure that the
wall sleeve vertical anges, which must mate with the
back of the unit, are perfectly vertical. The sleeve
must be secured to the building framing with suitable
eld-supplied fasteners (i.e. lag screws). (NOTE:
Use shims as necessary, between the sleeve and
the rough wall opening, to compensate for any ir-
regularities at the sleeve fastening locations.) DO
NOT allow the fasteners to distort the wall sleeve
side panels.
A roll of ¾” wide x ½” thick self adhesive foam gasket
is packed in the blower compartment of the unit, to
be used for sealing between the wall sleeve and the
unit. Before moving the unit into nal position, apply
self-adhesive foam gasket to all the mating anges
on the wall sleeve, be sure to apply gasket material
to the divider panel ange between the top and bot-
tom sections of the wall sleeve. Also apply gasket
material to the vertical ange of fresh air divider.
22" min.
clear opening
Line up Unit
with door openning
3" min.
recommended
"D"
Closet Depth
"B"
LD13500

JOHNSON CONTROLS
10
FORM 145.20-IOM1 (908)
LD13501
FIG. 3 - WALL SLEEVE ASSEMBLY

FORM 145.20-IOM1 (908)
11
JOHNSON CONTROLS
9. EXTERIOR GRILLE
Finish the sleeve exterior with a factory supplied
intake and discharge grille.
10. UNIT TO SLEEVE ATTACHMENT
Lift the unit and place it inside of the wall sleeve.
Then slide the unit forward until the unit contacts
the wall sleeve and makes a seal with the gasket
on the wall sleeve. Make sure unit is centered
inside of the wall sleeve.
The unit is secured to the wall sleeve using two
angles; use of the angles is optional and depends
on eld installation conditions. The angles should
be placed on the both sides of the unit using pre-
punched holes to position them. They must be
installed before the unit is put into place.
After the unit is positioned screw the angles to the
front ange of the wall sleeve sides using two #10
x ½ inch self-drilling sheet metal screws on each
end. The required angles and screws are packed
inside the blower compartment of the unit.
11. CONDENSATE DRAIN PIPING
The condensate drain pan is tted with a ¾” NPT
female pipe tting which protrudes through the unit
wall sleeve bottom casing. The ¾” drain piping
should have drain trap installed to prevent condi-
tioned air from being blown out of the drain line.
The trap should be at least 2 inches deep with the
outlet a minimum of 1-½ inch below the inlet.
The drain piping on the outlet side of the trap
should be pitched ¼ inch per foot down towards
an open drain. Unions should be installed between
the outlet side of the trap to allow for disconnecting
the piping and the trap for cleaning out.
12. HOT WATER PIPING – VPH UNITS ONLY
The VPH models are supplied with a 2 or 3-row
hot water heating coil. The water connections to
the heating coil project through the top of the unit
cabinet, adjacent to the supply air opening. The
orientation of the water in / water out through the
coil is interchangeable (either connection may be
the water in, without affecting heating output).
The maximum design entering water temperature
for these units is 200ºF.
The sweat connection stubs are 7/8” ID copper.
Unions should be installed on both the inlet and
outlet piping (as close to the unit as possible), to
allow for disconnecting and removal of the entire
unit.

JOHNSON CONTROLS
12
FORM 145.20-IOM1 (908)
13. INSTALLING DUCT WORK
Install all duct work to meet current
standards:
• ASHRAE/NFPA 90, Standard for Installation of
Warm Air Heating and Air Systems.
• State, provincial, and local codes
Failure to follow these standards could reduce air ow
or increase air leakage, resulting in reduced system
performance or unit damage.
For all units, design duct systems within the maximum
external static pressure limits indicated in Table 1.
SUPPLY AIR DUCT WORK
Duct attaching hardware must only be used on the
supply air outlet anges. Optional electrical heater is
located under the top panel near these anges. Do not
drill or use screws in this area.
Supply air duct (plenum) connection
must be at least the same size as the
unit supply air opening. Seal supply air
duct work to unit casing, walls, ceilings
or oors.
INDOOR BLOWER CFM - VPC & VPP MODELS
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40
HIGH 445 435 425 415 400 385 370 355
MED 350 340 330 320 310 300 285 270
LOW 280 275 270 265 255 245 235 220
HIGH 470 460 450 440 425 410 395 375
MED 370 360 350 340 330 315 300 285
LOW 295 290 285 280 270 260 245 230
HIGH 775 760 745 725 705 685 660 635
MED 640 630 620 610 600 585 570 555
LOW 450 445 440 435 430 420 405 390
HIGH 1070 1045 1020 995 970 945 915 885
MED 930 920 910 900 890 875 860 840
LOW 820 815 810 805 800 790 780 765
EXTERNAL STATIC PRESSURE
VPC/VPP**12
VPC/VPP**24
VPC/VPP**18
VPC/VPP**09
Motor
Speed
Model #
INDOOR BLOWER CFM - VPH MODELS
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40
HIGH 435 425 415 400 385 370 355 335
MED 340 330 320 310 300 285 270 255
LOW 275 270 265 255 245 235 220 205
HIGH 460 450 440 425 410 395 375 355
MED 360 350 340 330 315 300 285 270
LOW 290 285 280 270 260 245 230 215
HIGH 735 715 695 675 650 625 595 565
MED 620 605 590 575 560 545 525 505
LOW 445 440 435 430 425 415 410 395
HIGH 700 680 660 640 615 590 560 530
MED 610 595 580 565 550 530 510 495
LOW 440 435 430 420 410 400 390 380
HIGH 950 930 910 885 860 835 810 780
MED 890 860 840 810 780 750 720 690
LOW 805 800 790 775 760 740 715 685
HIGH 910 890 870 850 820 795 770 740
MED 840 815 790 765 740 715 690 660
LOW 790 775 760 740 720 690 660 630
EXTERNAL STATIC PRESSURE
Motor
Speed
Model #
VPH0212
2 ROW H/W COIL
VPH0209
2 ROW H/W COIL
VPH0218
2 ROW H/W COIL
VPH0318
3 ROW H/W COIL
VPH0224
2 ROW H/W COIL
VPH0324
3 ROW H/W COIL
NOTE: ALL UNITS SHIPPED FACTORY CONNECTED AT MEDIUM SPEED
TABLE 1 - CFM AND MOTOR SPEED SELECTION

FORM 145.20-IOM1 (908)
13
JOHNSON CONTROLS
14. AIR FILTERS
All return air entering the unit must be ltered. 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 lter is provided to prevent dust and
insects from entering the indoor circulating air.
FILTER INSTALLATION
Air lters are required to keep the air
conditioning coil, and blower motor
clean. The return air lter can be re-
moved from either side (closet space
permitting), or from the front of the unit.
Push the lter all way up into the top
lter ange, slide it into the position and
let it drop into the bottom ange.
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 lter can be removed through the
compressor access door. The lter 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 lter 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 re, 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 re, 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.

JOHNSON CONTROLS
14
FORM 145.20-IOM1 (908)
TABLE 2 - ELECTRICAL DATA
ELECTRICAL DATA - VERTICAL PTAC WITH ELECTRIC HEAT OPTION 208-230/1/60
MODEL
#QTYRLA LRAHPFLA HP FLA208V230V240V208V230V240V208V230V240V
VPC/VPP0209 1@3.5 22.2 0.10 0.80 0.10 0.60 1.50 1.84 2.00 10.03 10.98 11.42 15 15 15
VPC/VPP0309 1@3.5 22.2 0.10 0.80 0.10 0.60 2.25 2.76 3.00 14.54 15.97 16.63 15 20 20
VPC/VPP0409 1@3.5 22.2 0.10 0.80 0.10 0.60 3.00 3.67 4.00 19.06 20.97 21.83 20 25 25
VPC/VPP0212 1@4.3 27.0 0.10 0.80 0.13 0.80 1.50 1.84 2.00 10.03 10.98 11.42 15 15 15
VPC/VPP0312 1@4.3 27.0 0.10 0.80 0.13 0.80 2.25 2.76 3.00 14.54 15.97 16.63 15 20 20
VPC/VPP0412 1@4.3 27.0 0.10 0.80 0.13 0.80 3.00 3.67 4.00 19.06 20.97 21.83 20 25 25
VPC/VPP0512 1@4.3 27.0 0.10 0.80 0.13 0.80 3.76 4.59 5.00 23.57 25.96 27.04 25 30 30
VPC/VPP0218 1@10.0 41.0 0.13 0.75 0.17 1.10 1.50 1.84 2.00 14.35 14.35 14.35 20 20 20
VPC/VPP0318 1@10.0 41.0 0.13 0.75 0.17 1.10 2.25 2.76 3.00 14.48 15.91 16.56 20 20 20
VPC/VPP0418 1@10.0 41.0 0.13 0.75 0.17 1.10 3.00 3.67 4.00 18.99 20.90 21.77 20 25 25
VPC/VPP0518 1@10.0 41.0 0.13 0.75 0.17 1.10 3.76 4.59 5.00 23.51 25.89 26.98 25 30 30
VPC/VPP0618 1@10.0 41.0 0.13 0.75 0.17 1.10 4.51 5.51 6.00 28.02 30.89 32.19 30 35 35
VPC/VPP0818 1@10.0 41.0 0.13 0.75 0.17 1.10 6.01 7.35 8.00 37.05 40.87 42.60 40 45 45
VPC/VPP1018 1@10.0 41.0 0.13 0.75 0.17 1.10 7.51 9.18 10.00 46.08 50.85 53.02 50 60 60
VPC/VPP0324 1@12.1 54.0 0.25 1.50 0.25 1.50 2.25 2.76 3.00 18.13 18.13 18.13 30 30 30
VPC/VPP0424 1@12.1 54.0 0.25 1.50 0.25 1.50 3.00 3.67 4.00 19.93 21.84 22.71 30 30 30
VPC/VPP0524 1@12.1 54.0 0.25 1.50 0.25 1.50 3.76 4.59 5.00 24.44 26.83 27.92 30 30 30
VPC/VPP0624 1@12.1 54.0 0.25 1.50 0.25 1.50 4.51 5.51 6.00 28.96 31.82 33.13 30 35 35
VPC/VPP0824 1@12.1 54.0 0.25 1.50 0.25 1.50 6.01 7.35 8.00 37.99 41.81 43.54 40 45 45
VPC/VPP1024 1@12.1 54.0 0.25 1.50 0.25 1.50 7.51 9.18 10.00 47.01 51.79 53.96 50 60 60
MAX FUSE / CCT. BKR. AMP
MCAOUTDOOR FANINDOOR FANCOMPRESSOR HEATER KW
ELECTRICAL DATA - VERTICAL PTAC WITH 'NO HEAT' OPTION / HYDRONIC HEAT OPTION (208-230/1/60)
MODELMCA MAX FUSE /
#QTYRLA LRAHPFLA HP FLA CCT. BKR. AMP
VPH0*09 / VPC0009 1@3.5 22.20.100.800.100.6 5.78 15
VPH0*12/ VPC0012 1@4.3 27.00.100.800.130.8 6.98 15
VPH0*18 / VPC0018 1@10.0 41.00.130.750.171.1 14.35 20
VPH0*18 / VPC0024 1@12.1 54.00.251.500.251.5 18.13 30
OUTDOOR FANINDOOR FANCOMPRESSOR
LD13507

FORM 145.20-IOM1 (908)
15
JOHNSON CONTROLS
LD13501
FIG. 4 - FIELD WIRING DIAGRAM
17. SEQUENCE OF OPERATION ON
COOLING CYCLE – VPC & VPH UNITS
1. Room thermostat calls for cooling, connecting R
to Y terminals.
2. The compressor and outdoor fan start immediately
on a call for cooling. Air circulating fan also starts
immediately with cooling operation.
3. When the room thermostat is satised, terminal Y
on the thermostat is de-energized.
4. The compressor, outdoor fan and indoor fan stop
immediately when the thermostat is satised.
5. A compressor restart delay timer is activated at
the end of each cooling cycle. A minimum delay
time of 3 minutes is required to ensure that system
pressures have equalized before a compressor
restart.
18. SEQUENCE OF OPERATION ON HEATING
CYCLE – VPC UNITS ONLY
1. Room thermostat calls for heat, connecting R and
W terminals.
2. Electric Heat sequencer relay (1S) is energized.
3. On 2kW through 5kW models the electrical heater
is energized between 1-24 seconds after time
delay is energized. Heating fan is energized si-
multaneously with heating element operation.
4. On a unit with two heating elements (6kW, 8kW, or
10 kW), the 2nd element will be energized by clo-
sure of the 2S sequencer contacts approximately
90 seconds after the rst stage is energized.
5. When the room thermostat is satised, terminals
R and W on the thermostat open, de-energizing
the 1S/2S sequencer relays.
6. The bank of heating elements will be disconnected
in descending order, the indoor fan will continue
to run until the elements are de-energized.
19. SEQUENCE OF OPERATION ON HEATING
CYCLE – VPH UNITS ONLY
1. Room thermostat calls for heat, connecting R and
W terminals.
2. Hydronic Heat Circulating Pump/valve relay is
energized (eld supplied). Heating fan is energized
simultaneously with hot water ow interlock.
(Note: An electric/hot water heat thermostat, which
energizes the indoor fan during the heating cycle,
must be used.)
3. When the room thermostat is satised, terminals
R and W on the thermostat open, de-energizing
the hot water pump/valve interlock relay.

JOHNSON CONTROLS
16
FORM 145.20-IOM1 (908)
20. SEQUENCE OF OPERATION ON
COOLING CYCLE – VPP UNITS ONLY
1. Room thermostat calls for cooling, connecting R
to Y and O terminals (Reversing valve energized
only in cooling).
2. The compressor and outdoor fan start immediately
on a call for cooling. Air circulating fan also starts
immediately with cooling operation.
3. When the room thermostat is satised, terminals
Y and O on the thermostat are de-energized.
4. The compressor, outdoor fan and indoor fan stop
immediately when the thermostat is satised. The
reversing valve returns to the default position.
5. A compressor restart delay timer is activated at
the end of each cooling cycle. A minimum delay
time of 3 minutes is required to ensure that system
pressures have equalized before a compressor
restart.
21. SEQUENCE OF OPERATION ON HEATING
CYCLE – VPP UNITS ONLY
A. OUTDOOR AMBIENT ABOVE 40ºF
1. Room thermostat calls for heat, connecting R and
Y terminals (O terminal de-energized).
2. The compressor and outdoor fan start immediately
on a call for heating. Air circulating fan also starts
immediately with heating operation.
3. When the room thermostat is satised, terminal Y
on the thermostat is de-energized.
4. The compressor, outdoor fan and indoor fan stop
immediately when the thermostat is satised.
5. A compressor restart delay timer is activated at
the end of each cooling cycle. A minimum delay
time of 3 minutes is required to ensure that system
pressures have equalized before a compressor
restart.
B. OUTDOOR AMBIENT BELOW 40ºF
1. Room thermostat calls for heat, connecting R and
Y terminals (O terminal de-energized).
2. The normally closed contacts of the Low Ambient
relay (R2) route the thermostat signal through R3
to energize the electric element switching sequenc-
ers.
The heat/cool interlock relay (R3) pre-
vents the electric heat from being en-
ergized through terminal Y of a single-
stage heat pump thermostat.
3. On 2kW through 5kW models the electrical heater
is energized between 1-24 seconds after time
delay is energized. Indoor fan is interlocked simul-
taneously with heating element operation.
4. On a unit with two heating elements (6kW, 8kW,
or 10 kW), the 2nd element will be energized
approximately 90 seconds after the rst stage is
energized.
5. When the room thermostat is satised, terminals R
and Y on the thermostat open, de-energizing the
1S/2S sequencer relays.
6. The bank of heating elements will be disconnected
in descending order, the indoor fan will continue
to run until the elements are de-energized.
22. UNIT SECTION START-UP CHECKLIST
Before starting unit for the rst time, be sure you
can answer “Yes” to each of these questions:
1. Is the unit level?
2. Have you cleared away all loose construction and
insulation materials?
3. Is unit installed within proper clearances to com-
bustible materials?
4. Does electrical wiring follow current National Elec-
trical Code ANSI 70 or CSA C22.1 as well as local
codes?
5. Is unit electrically grounded?
6. Is room thermostat properly installed?
7. Is duct work system correctly sized and sealed?
8. Are air lters in place and correctly sized?

FORM 145.20-IOM1 (908)
17
JOHNSON CONTROLS
23. SYSTEM BALANCE
Electric heating elements require a mini-
mum airow to ensure proper heating
output and maximum element operating
life. Low airow will also cause poor
cooling performance.
Blower speed taps are factory set for optimum heating
and cooling airow ranges. Refer to Table 1 for factory
blower speed settings, and minimum allowable heating
airow.
Operating unit below the minimum
heating airow may cause poor heating
performance and decreased resistant
heater life.
Installed system must be test run to ensure operation
with sufcient heating and cooling airow. Duct work
static pressure should not exceed 0.3 inches W.C. in
order to ensure proper volume of air ow.
24. MAINTAINING YOUR UNIT IN GOOD WORKING
ORDER
Follow these procedures before inspect-
ing unit.
• Turn room thermostat to the ‘OFF’ system set-
ting.
• Wait at least ve minutes for unit to cool if it was
recently operating.
• Turn off unit electrical power; failure to do so could
result in injury or death.
Use only recommended replacements
parts. Failure to do so could cause im-
proper unit operation, resulting in dam-
age, injury or death.
Perform periodic preventive maintenance once before
heating season begins and once before cooling sea-
son. Inspect, clean and repair as needed the following
items:
1) All electrical wiring and connections, including
electrical ground.
2) All supply air and return air ducts for obstructions,
air leaks and loose insulation.
3) Blower housings, motors and wheels, and air
lters. Blower motors do not require oiling.
4) Inspect indoor and outdoor coils for accumulations
of dirt and debris, and clean as required. If the coils
appear dirty, clean them using mild detergent or a
commercial coil cleaning agent.
Dirty or clogged indoor coils cause low suction
pressures and lost cooling capacity.
When operating in Cooling, with a clean outdoor
coil, the air temperature leaving the outdoor fan
discharge should be approximately 33ºF above the
outdoor air temperature. The saturated condensing
temperature should be approximately 38ºF above
the outdoor air temperature.
Outdoor
Temp
o
F
Condensing
Pressure (psig)
70 200
75 215
80 230
85 245
90 260
95 280
If the condensing pressure is higher than shown in the
table above, dirt in the condenser must be suspected.
To clean the condenser coil, remove the wall grille from
the outside and remove the accumulated dirt from the
air intake face of the coil using a brush and/or vacuum
cleaner. Always remove all dislodged dirt from inside
the wall sleeve so that it will not be sucked back into
the condenser coil.
25. REFRIGERANT CHARGES
UNIT MODEL# R-22 CHARGE
VP***0912 2 lb.- 6 oz.
VP***1212 2 lb.-10 oz.
VP***1812 3 lb.-11 oz.
VP***2412 4 lb.-10 oz.

JOHNSON CONTROLS
18
FORM 145.20-IOM1 (908)
LD13504

FORM 145.20-IOM1 (908)
19
JOHNSON CONTROLS
LD13505

JOHNSON CONTROLS
20
FORM 145.20-IOM1 (908)
LD13506