Unitary products group F2FV060 User manual

035-14519-002 Rev. B (1204)
VARIABLE SPEED SINGLE PIECE
MODULAR AIR HANDLERS
MODELS: F2FV060 / F3FV060(T)
INSTALLATION MANUAL
ISO 9001
Certified Quality
Management System
SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.
This product must be installed in strict compliance with the installa-
tion instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical
codes.
TABLE OF CONTENTS
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SPECIFIC SAFETY RULES AND PRECAUTIONS . . . . . . . . . . . . . . .2
SAFETY REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
HORIZONTAL DRAIN PAN CONVERSION . . . . . . . . . . . . . . . . . . . .3
DUCT CONNECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
AIR FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SUSPENSION KITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
COIL METERING DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
REFRIGERANT LINE CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . .6
ELECTRIC HEATERS & OPERATING CONTROLS . . . . . . . . . . . . . .6
LOW VOLTAGE CONTROL CONNECTION . . . . . . . . . . . . . . . . . . . .7
LINE POWER CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
BLOWER SPEED SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
DRAIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
COIL CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
CONDENSATE DRAINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
LIST OF FIGURES
Plenum Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Filter Access & Drain Pan Conversion / Coil Baffle . . . . . . . . . . . . . . .4
Dimensions & Duct Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Typical Horizontal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
TXV Bulb Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Orifice Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Electric Heaters in Horizontal Configuration - Right Hand Air Flow . . .7
Line Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
CFM Selection Board Detail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Cooling Models with Electric Heat Wiring . . . . . . . . . . . . . . . . . . . . . .10
Two-Stage Cooling Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Heat Pump Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
LIST OF TABLES
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installed Orifice or TXV Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CFM / Tap Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Physical and Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Conversion Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Electrical Data - 1 Ø - 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . .9
Electrical Data - 3 Ø - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . .9
Electrical Data - Cooling Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Electrical Data - (for Single Source Power Supply) -
Copper Wire 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Electrical Data - (for Single Source Power Supply) -
Copper Wire 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Electrical Data - (for Multi-Source Power Supply) -
Copper Wire 208/230-1-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

035-14519-002 Rev. B (1204)
2Unitary Products Group
SPECIFIC SAFETY RULES AND PRECAUTIONS
1. Install this air handler only in a location and position as specified in
SECTION I of these instructions.
2. Always install the air handler to operate within the air handler’s
intended maximum outlet air temperature. Only connect the air
handler to a duct system which has an external static pressure
within the allowable range, as specified on the air handler rating
plate.
3. When a air handler is installed so that supply ducts carry air circu-
lated by the air handler to areas outside the space containing the
air handler, the return air shall also be handled by duct(s) sealed to
the air handler casing and terminating outside the space contain-
ing the air handler.
4. The air handler is not to be used for temporary heating of buildings
or structures under construction.
5. The size of the unit should be based on an acceptable heat loss
calculation for the structure. ACCA, Manual J or other approved
methods may be used.
SAFETY REQUIREMENTS
• This air handler should be installed in accordance with all national
and local building/safety codes and requirements, local plumbing
or wastewater codes, and other applicable codes.
• Refer to the unit rating plate for the air handler model number,
and then see the dimensions page of this instruction for supply air
plenum dimensions in Figure 1. The plenum must be installed
according to the instructions.
• Provide clearances from combustible materials as listed under
Clearances to Combustibles.
• Provide clearances for servicing ensuring that service access is
allowed for both the burners and blower.
• Failure to carefully read and follow all instructions in this
manual can result in air handler malfunction, death, personal
injury and/or property damage.
• Check the rating plate and power supply to be sure that the elec-
trical characteristics match.
• Air handler shall be installed so the electrical components are
protected from water.
• Installing and servicing heating equipment can be hazardous due
to the electrical components. Only trained and qualified personnel
should install, repair, or service heating equipment. Untrained
service personnel can perform basic maintenance functions such
as cleaning and replacing the air filters. When working on heating
equipment, observe precautions in the manuals and on the labels
attached to the unit and other safety precautions that may apply.
• These instructions cover minimum requirements and conform to
existing national standards and safety codes. In some instances
these instructions exceed certain local codes and ordinances,
especially those who have not kept up with changing residential
and non-HUD modular home construction practices. These
instructions are required as a minimum for a safe installation.
GENERAL INFORMATION
This Single Piece Air Handler provides the flexibility for installation in
any upflow or horizontal application. These versatile models may be
used for cooling or heat pump operation with or without electric heat.
The variable-speed (ECM) motors provide a selection of air volume to
match any application.
BRAND LABEL (available from Distribution) apply to center of the
blower access panel.
The unit can be positioned for bottom return air in the upflow position,
and right or left return in the horizontal position.
Top and side power wiring and control wiring, accessible screw termi-
nals for control wiring, easy to install drain connections and electric
heaters all combine to make the installation easy, and minimize installa-
tion cost.
INSPECTION
As soon as a unit is received, it should be inspected for possible dam-
age during transit. If damage is evident, the extent of the damage
should be noted on the carrier’s freight bill. A separate request for
inspection by the carrier’s agent should be made in writing. Also, before
installation the unit should be checked for screws or bolts, which may
have loosened in transit. There are no shipping or spacer brackets
which need to be removed.
Also check to be sure all accessories such as heater kits, suspension
kits, and coils are available. Installation of these accessories or field
conversion of the unit should be accomplished before setting the unit in
place or connecting any wiring, electric heat, ducts or piping.
LIMITATIONS
These units must be wired and installed in accordance with all national
and local safety codes.
Voltage limits are as follows:
Airflow must be within the minimum and maximum limits approved for
electric heat, evaporator coils and outdoor units.
CLEARANCES
Clearance must be provided for:
1. Refrigerant piping and connections - minimum 12” recommended.
2. Maintenance and servicing access - minimum 36” from front of unit
recommended for blower motor / coil replacement.
3. Condensate drain line.
4. Filter removal - minimum 36” recommended.
LOCATION
Location is usually predetermined. Check with owner’s or dealer’s
installation plans. If location has not been decided, consider the follow-
ing in choosing a suitable location:
1. Select a location with adequate structural support, space for ser-
vice access, clearance for air return and supply duct connections.
2. Use hanging brackets to wall mount unit as shown below.
3. Normal operating sound levels may be objectionable if the air han-
dler is placed directly over some rooms such as bedrooms, study,
etc.
FIRE OR ELECTRICAL HAZARD
Failure to follow the safety warnings exactly could result in serious
injury, death or property damage.
A fire or electrical hazard may result causing property damage, per-
sonal injury or loss of life.
Air Handler Voltage Voltage code 1Normal Operating
Voltage Range
1. Rated in accordance with ARI Standard 110, utilization range “A”.
208/230-1-60 06 187-253
Entering Air Temperature Limits
Wet Bulb Temp.°F Dry Bulb Temp. °F
Min. Max. Min. Max.
57 72 65 95

035-14519-002 Rev. B (1204)
Unitary Products Group 3
4. Precautions should be taken to locate the unit and ductwork so
that supply air does not short circuit to the return air.
5. Select a location that will permit installation of condensate line to
an open drain.
NOTE: When the coil is installed in a draw-thru application, it is recom-
mended to trap the primary and secondary drain line. If the sec-
ondary drain line is not used, it must be capped.
The coil is provided with a secondary drain. It should be piped to a loca-
tion that will give the occupant a visual warning that the primary drain is
clogged. If the secondary drain is not used it must be capped.
6. When an evaporator coil is installed in an attic or above a finished
ceiling, an auxiliary drain pan should be provided under the coil as
is specified by most local building codes.
7. Proper electrical supply must be available.
8. Clearances must also be taken into consideration, and provided
for as follows:
A. Refrigerant piping and connections are located in the front.
B. Maintenance and servicing through the front or access side
of unit with both sides and rear of unit having zero inch clear-
ance.
C. Condensate drain lines are connected in the front (clear of fil-
ter).
D. Filter removal.
E. When no electric heat is used, the unit as well as all duct
work and plenum are designed for zero clearance to combus-
tible materials.
HORIZONTAL DRAIN PAN CONVERSION
These air handler units are supplied ready to be installed in a right hand
horizontal position. If unit requires left hand positioning, the unit must
have the pan installed in the correct position.
1. Remove blower access, coil access, and center access panels.
NOTE: Conversion must be made before brazing the refrigerant con-
nections to the coil.
2. See Figure 3, remove two screws from horizontal drain pan, to
remove pan from position “4A” if factory installed.
3. Position horizontal pan, as required in either “A” or “B” position,
locking it into the vertical drain pan as shown.
4. Horizontal drain pans have 4 plugged drains. Remove plugs from
connections being used.
NOTE: If this step is overlooked, it can lead to a water problem later.
5. Use removed plug to plug primary of upflow drain pan.
6. Attach horizontal pan with 2 screws removed in step no. 2 or sup-
plied with the unit. Ensure that the drain pan is lying flat against the
insulation of the cabinet.
7. Horizontal drain cutout in the center access panel should be
removed by using a utility knife (if not previously cut out).
8. Re-position and replace access panels.
If electric heat is used, a minimum clearance of 1” must be main-
tained on all sides of the supply air duct and/or plenum continuously
for up to 3’ (See Figure 1).
FIGURE 1: Plenum Clearances
MINIMUM CLEARANCE
OF 1” ALL SIDES
FLEXIBLE
DUCT COLLAR
3’
FIGURE 2: Typical Installation
POWER WIRING
TO MAIN
POWER SOURCE
SUPPLY
AIR POWER WIRING
CONTROL
WIRING
THERMOSTAT
FILTER
ACCESS
LOUVERED
TO
CONDENSATE
DRAIN
REFRIGERANT
LINES
ELECTRIC HOT WATER HEATER
(Must complywith water heater installation instructions)
DO NOT TRY TO KNOCK OUT PANEL OPENING FOR SECOND-
ARY DRAIN PAN. SEE ITEM 7.
Models F(2,3)FV060 have a coil baffle and support bracket factory
installed for right hand horizontal application (refer to Figure 3C).
For left hand applications the coil support bracket must be moved to
the right side of the coil, and the coil baffle must be rotated to avoid
water blow-off.
To rotate baffle, remove the coil assembly from the unit (remove
front two screws holding the coil support bracket and the two
screws holding the drain pan). Remove four screws in coil baffle
and remove the coil baffle and rotate ends.
Resecure the baffle and reinstall the coil assembly ensuring that
the rear of the drain pan is secured under the back flange of the
unit. Reinstall the coil support bracket on the right side of the coil.

035-14519-002 Rev. B (1204)
4Unitary Products Group
FIGURE 3: Filter Access & Drain Pan Conversion / Coil Baffle
FILTER
3B - SIDE VIEW
"S" BRACKET MUST BE USED TO
FASTEN DUCT WORK TO FRONT OF UNIT
RETURN AIR DUCT
3/4" PVC SOCKETS
FOR HORIZONTAL
DRAIN APPLICATION
HORIZONTAL
DRAIN PAN
POSITION "A”
HORIZONTAL
DRAIN PAN
POSITION "B”
PRIMARY DRAIN UPFLOW
3/4” THREADED
SECONDARY
DRAIN UPFLOW
3/4" THREADED
BLOWER
HOUSING
COIL COMPARTMENT
(ACCESS PANEL REMOVED)
FILTER
BLOWER
COMPARTMENT
(ACCESS PANEL
REMOVED)
CENTER ACCESS PANEL
PRIMARY
DRAIN
SECONDARY
DRAIN
VERTICAL
DRAIN PAN
SECONDARY
DRAIN
PRIMARY
DRAIN
3C - FRONT VIEW
3A - FRONT VIEW
DUCT WORK MAY BE FASTENED
CAUTIOUSLY WITH SCREWS TO
THE SIDES AND REAR OF UNIT
SUPPORT
BRACKET
060 COIL BAFFLE
(SHOWN IN
RIGHT-HORIZONTAL
POSITION)
FIGURE 4: Dimensions & Duct Sizes
SHIPPING BRACKET*
REMOVE PRIOR TO
INSTALLATION (2 SCREWS)
10-3/8
J
DRAIN CONNECTIONS
FOR HORIZONTAL
APPLICATIONS
4
D
VAPOR
OPENING
LIQUID
OPENING
2B
FILTER
ACCESS
DRAIN CONNECTIONS
FOR UPFLOW APPLICATIONS BOTTOM VIEW
E
18-3/8
3/4
REAR
3/4
=DRAIN PAN FOOTPRINT
TOP VIEW (ALL MODELS)
7-1/2
10-3/8
4-1/8
F
3/4
A
C
F
K
MAX. FILTER LENGTH
(21 INCHES)
MAX. FILTER WIDTH
(B MINUS 1-1/2 INCHES)
ALL DIMENSIONS ARE IN INCHES. THEY ARE SUBJECT TO CHANGE
WITHOUT NOTICE. CERTIFIED DIMENSIONS WILL BE PROVIDED
UPON REQUEST.
TABLE 1: Dimensions
MODEL
F2FV /
F3FV(T)
Dimensions Wiring K.O.’s* Refrigerant
Connections
Line Size
ABC
DE F JK
Height Width Depth Power Control Liquid Vapor
060 50-3/4 24 22 17-3/8 20-7/8 22-1/2 7/8 (1/2) 1-3/8 (1),
1-23/32 (1-1/4) 7/8 (1/2) 3/8 7/8

035-14519-002 Rev. B (1204)
Unitary Products Group 5
DUCT CONNECTORS
NOTE: The electric heat accessory should be installed before the sup-
ply air duct is attached to the supply air openings. Refer to the
electric heater kit instructions for proper installation.
Air supply and return may be handled in one of several ways best
suited to the installation. See Figure 4 for dimensions for duct inlet and
outlet connections.
The vast majority of problems encountered with combination heating
and cooling systems can be linked to improperly designed or installed
duct systems. It is therefore highly important to the success of an instal-
lation that the duct system be properly designed and installed.
Use flexible duct collars to minimize the transmission of vibration/noise
into the conditioned space. If electric heat is used, non-flammable
material must be used.
Where return air duct is short, or where sound may be a problem,
sound absorbing glass fiber should be used inside the duct. Insulation
of duct work is a must where it runs through an unheated space during
the heating season or through an uncooled space during the cooling
season. The use of a vapor barrier is recommended to prevent absorp-
tion of moisture from the surrounding air into the insulation.
The supply air duct should be properly sized by use of a transition to
match unit opening. All ducts should be suspended using flexible hang-
ers and never fastened directly to the structure. This unit is not
designed for non-ducted (freeblow) applications. Size outlet plenum or
transition to discharge opening sizes shown in Figure 4.
Duct work should be fabricated and installed in accordance with local
and/or national codes. This includes the standards of the National Fire
Protection Association for Installation of Air-Conditioning and Ventilat-
ing Systems, NFPA No. 90B.
AIR FILTERS
Air filters must be field supplied. A 1" filter access rack has been built
into the unit. See Figure 4. Remove filter access cover shown. Install
proper size filter. Standard 1" size permanent or throw away filter may
be used, or, permanent washable filters are available using model num-
ber: 1PF603BK only. See Table 4 for filter size.
SUSPENSION KITS
A suspension kit is available. Models 1BH0601 (unit sizes 018-060) is
designed specifically for the units contained in this instruction (upflow
application only). For installation of these accessory kits, see the
instructions packed with the kit.
For suspension of these units in horizontal applications, it is recom-
mended to use angle steel support brackets with threaded rods, sup-
porting the units from the bottom, at the locations shown in Figure 5.
COIL METERING DEVICES
The coil in this Air Handler unit will have a metering device installed at
the factory.
If the model number is of the following format:
F3FVH06T - The coil will have a Thermal Expansion Valve (TXV)
installed. Please refer to the TXV Metering Device section for installa-
tion notes.
If the model number is of the following model series:
F2FV - The coil will have an orifice installed in the distributor housing.
Please refer to the Orifice Metering Device section for selection &
installation notes.
TXV Metering Device
Please refer to Table 2 to verify which TXV is installed in this Air Han-
dler unit and that this AHU is a valid system match for the AC or HP unit
installed.
The TXV is fully brazed into the coil assembly of this Air Handler unit at
the factory. The temperature sensing bulb will need to be attached to
the coil suction header line after the line set is brazed to the coil.
Use 1/2" screws to connect ductwork to bottom of unit. Longer
screws will pierce the drain pan and cause leakage. If pilot holes
are drilled, drill only though field duct and unit bottom flange.
Equipment should never be operated without filters.
Units
(Nominal Tons) Dimension
WW XX
060 19-1/2” 50-3/4”
FIGURE 5: Typical Horizontal Installation
TABLE 2:
Installed Orifice or TXV Sizes
Indoor Coil Model Metering Device
F2FV060 Orifice - 90
F3FV060(T) TXV 0703
FIGURE 6: TXV Bulb Installation
SUSPENSION SUPPORT LOCATIONS FOR HORIZONTAL APPLICATION
S
2
WW
XX
1-1/2
NOTE: USE SUPPORTS UNDER UNIT.
INSULATION
ROLL
EXPANSION
BULB
EXPANSION
BULB
CLAMP
EXPANSION
LINE

035-14519-002 Rev. B (1204)
6Unitary Products Group
• Make sure the TXV bulb is outside of the Air Handler cabinet.
Excess tubing should remain inside the cabinet.
• Take caution not to apply high temperatures to the TXV assembly
or equalizer line while brazing.
• Attach field line sets and braze to coil connections. Replace
access panels & secure.
• Secure the TXV bulb to the suction line with the clamp provided.
Choose a horizontal location as close to the cabinet as possible,
but not directly on the brazed connection joint. Refer to Figure 7.
• The bulb should be in direct contact with the coil suction line
along the length of the bulb.
• If the suction line is 3/4" diameter - position the bulb near the top
of the copper tube as shown. If the tube is 7/8" diameter - position
the bulb near the bottom of the tube. Refer to Figure 7.
• Wrap the clamp, bulb & line securely with insulation provided.
Orifice Metering Device
All non-TXV coils will have an orifice installed in the fitting between the
liquid line connection and distributor. See Figure 8. The factory installed
orifice is identified on the unit data plate. Also it is listed in Table 2.
The orifice that is shipped with the coil is based on the “most sold” com-
bination, but it may have to be changed, depending on the capacity and
efficiency of the outdoor unit, elevation differences of the indoor and
outdoor sections, and/or long total line lengths. An additional orifice is
shipped with the outdoor unit in the literature packet for most require-
ments. Other sizes must be ordered from the parts department if
required.
Orifice Installation
A standard orifice is pre-installed in the unit and is marked on the unit
data plate. Refer to the outdoor unit instruction and application data to
determine the proper orifice required for your particular system combi-
nation and piping conditions.
If the orifice sizes match, nothing further is required and the refrigerant
lines may be connected per the outdoor unit instruction. However, if
another orifice should be used, change the orifice in the coil with the fol-
lowing procedure:
1. Remove the liquid line fitting using 3/4" wrenches, and remove the
pre-installed orifice with a small diameter wire or paper clip.
2. Remove the new orifice from the packet and verify that it is the cor-
rect number required. Install this orifice with the rounded end
toward the coil and the flat end outward per Figure 8.
3. Thread the liquid line fitting back in place on the coil. Tighten the
fitting hand tight and turn an additional 1/8 turn to seal.
NOTE: This procedure should be done within 2 minutes to keep air and
contaminates from entering the coil. If the orifice cannot be
replaced and the coil resealed within 2 minutes, then it should
be temporarily closed to air using masking tape (short term
delay) or plugging/ capping (long term delay). There is no need
to purge the coil if this procedure is done within the time limit.
4. Mark the data plate with the orifice installed.
REFRIGERANT LINE CONNECTION
NOTE: Confirm the orifice size before connecting lines.
See the outdoor unit installation instructions for the procedure to install
field supplied tubing for systems with sweat fittings.
Stub adapters are available to adapt sweat connections to quick con-
nections.
Connect lines as follows:
NOTE: Route the refrigerant lines to the coil in a manner that will not
obstruct service access to the coil, air handling system or filter.
1. Suction line connections are made outside the center access
panel. Cut off the suction line as close to the end as possible. Cen-
ter access panel is recessed to assure sufficient room for brazing
or it can be removed and slid over the suction line during brazing.
2. Braze the suction line. Re-attach the center access panel, if it had
been removed.
3. Cut the liquid line at the groove in the bell, removing the schrader
fitting.
4. Braze the liquid line.
5. Install supplied grommets on both the suction and liquid lines to
complete the air seal.
Lines should be sound isolated by using the appropriate hangers or
strapping.
When field supplied lines are used be sure to insulate the suction line
only.
ELECTRIC HEATERS & OPERATING CONTROLS
The low voltage transformer and fan / heater control, are standard on all
models. See Figure 9. The air handlers are shipped pre-wired to oper-
ate as cooling only applications. To complete the installation for cooling
only, install the 6-pin jumper plug to the control board to bypass the
heater limit controls. This jumper plug is secured to the duct cover near
the 4-pin power plug harness. Failure to install the plug will cause the
blower to run continuously. (See Figure 9).
FIGURE 7: Bulb Location
FIGURE 8: Orifice Installation
FOR 7/8” O.D. OR LARGER
FOR 3/4” O.D. OR SMALLER
-45º 45º
NOTE:
TXV BULB MUST BE INSULATED
ROTATE BULB TO
KEEP TAIL AT BOTTOM
*
*
BULB
BULB
PIPE
LIQUID LINE
SWIVEL COUPLING
(See Caution Below)
ORIFICE
DISTRIBUTOR
Coil is under 30 PSIG inert gas pressure. Relieve pressure from
schrader valve on liquid line side.
This fitting is a right-hand thread, turn counter-clockwise to
remove.
Use 3/4" wrenches to turn fittings. Using pliers will cause internal
damage to the fitting.

035-14519-002 Rev. B (1204)
Unitary Products Group 7
Mark the unit nameplate with the appropriate heater selection on the
space provided or NONE to indicate cooling only. To operate these units
with electric heat, it is necessary to field install an electric heater kit
(2HK). See Electric Heater Kit Accessory Installation instructions for
proper installation procedure. Prior to installing electric heat, it is neces-
sary to perform the following procedure:
1. 1. Remove the 4-pin power plug from the control board (See Fig-
ure 9).
NOTE: This pin must not be used when electric heaters are installed.
2. Remove the four (4) screws from the duct cover and remove the
duct cover from the air handler.
Right-hand Airflow Application Only - Models with Circuit
Breakers - See Figure 10
If unit is to be installed for right hand air flow, the circuit breakers in the
heat kit will need to be removed and rotated 180°, so the OFF position
will be down when the cabinet is positioned on the right side. This is an
NEC requirement. Do One Set Of Breakers At A Time - to make sure
wires are reconnected properly. Loosen terminal screws on the wires
and gently pull the wires back from the breaker. Remove screws
securing the breaker plate and rotate 180°, then secure the breaker
plate and reconnect the wires to the breaker. Proper torque for terminal
screws is 35 in/lbs.
LOW VOLTAGE CONTROL CONNECTION
The 24 volt power supply is provided by an internally wired low voltage
transformer which is standard on all models. However, if the unit is con-
nected to a 208 volt power supply the low voltage transformer must be
rewired to the 208 volt tap. See the unit wiring label.
Field supplied low voltage wiring can exit the unit on the top right hand
corner or the right hand side panel (See Figure 4, item K).
Install a 7/8" plastic bushing in the selected hole and keep low voltage
wiring as short as possible inside the control box.
The field wiring is to be connected at the screw terminals of the control
board. Refer to Figures 14, 15 & 16.
NOTE: All wiring must comply with local and national electrical code
requirements. Read and heed all unit caution labels.
NOTE: It is possible to vary the amount of electric heat turned on during
the defrost cycle of a heat pump. Standard wiring will only bring
on 5 KW of electric heat during defrost. See Table 6 and Figures
14, 15 and 16 for alternate staging.
LINE POWER CONNECTIONS
Power may be brought into the unit through the supply air end of the
unit (top when unit is vertical) or the left side panel. Use the hole appro-
priate to the unit's orientation in each installation to bring conduit from
the disconnect. The power lead conduit should be terminated at the
electrical control box. Refer to Tables 8, 9 & 11 for wire requirements.
Also see Figure 11.
FIGURE 9: Control Board
RYGW2 W1 OC
2
4
V
A
C
BREAK TAB FOR
VARIABLE SPEED MOTOR
L
2
F
A
N
L
1
L
2
L
1
L2
H
L
L
1
2
3
4
K2 T9A
K1 T9A
5
A
M
P
M
A
X
2 SPEED LTRIP ECM
FAN
&
LIM
PWR
LIM
&
HEAT
COM
TEST
HEAT 2
DRV
HEAT 4
DRV
HEAT 3
DRV
FAN RELAY
FAN CONNECTIONS
TRANSFORMER
CONNECTIONS
(HIGH VOLTAGE)
4-PIN POWER
CONNECTOR
1 STAGE
HEAT RELAY
24 VOLT R
5 AMP
CONTROL
VOLTAGE
FUSE
6-PIN CONNECTOR
(LIMIT, 2ND, 3RD
& 4TH HEAT RELAY
DRIVER)
24 VOLT
COMMON FIGURE 10: Electric Heaters in Horizontal Configuration - Right Hand
Air Flow
HEAT KIT ASSEMBLY
REMOVE 3 SCREWS TO
REMOVE THE CIRCUIT
BREAKER BRACKET
FROM HEAT KIT ASSEMBLY
JUMPER BAR
JUMPER BAR COVER
FIELD SUPPLY WIRING
WILL BE ATTACHED TO
THIS SIDE OF THE
CIRCUIT BREAKER(S)
CIRCUIT BREAKER(S) - THERE
MAY BE ONE, TWO OR THREE
CIRCUIT
BREAKER
BRACKET
HEAT KIT WIRING WILL BE
ATTACHED TO THIS SIDE OF
THE CIRCUIT BREAKER(S)
AIR FLOW
FIGURE 11: Line Power Connections
ELECTRIC HEAT
WITHOUT CIRCUIT BREAKER
SINGLE SOURCE (2.5 - 10 KW)
GND. LUG
POWER
SUPPLY
GND.
LUG
ELECTRIC HEAT
WITHOUT CIRCUIT BREAKER
3 PHASE (10 - 15 KW)
GND. LUG
POWER
SUPPLY
GND.
LUG
1 PHASE ELECTRIC HEAT
WITH CIRCUIT BREAKER
AS SHIPPED FROM FACTORY
SINGLE SOURCE
(2.5-25KW)-25KWSHOWN
GND. LUG
POWER
SUPPLY
GND.
LUG
1 PHASE ELECTRIC HEAT
WITH CIRCUIT BREAKER
& BREAKER BAR REMOVED
MULTI-SOURCE (15 - 25 KW) - 25 KW SHOWN
GND. LUG
POWER
SUPPLY 1
GND.
LUG
POWER
SUPPLY 2
POWER
SUPPLY 3
TYPICAL WIRING WITHOUT ELECTRIC HEAT
GND. LUG
POWER
SUPPLY
GND.
LUG
POWER WIRING (208/230-1-60)
NOTE: USE ONLY COPPER CONDUCTORS

035-14519-002 Rev. B (1204)
8Unitary Products Group
BLOWER SPEED SELECTION
NOTE:
1. Both the "COOL" and the "ADJ" tap must be set for the cooling CFM.
2. Fan only CFM = 63% of high speed cooling.
3. Low speed cooling used only with two stage outdoor units. (Speed is preset
to 65% of high speed).
4. Dehumidification speed is 85% of cooling speed.
5. When operating in both heat pump and electric heat modes, the CFM will be
whichever is greater.
6. CFM indicator light flashes once for every 100 CFM. (i.e.: 12 Flashes is
1200 CFM)
All variable speed air handlers (F(2,3)FV) are designed to deliver con-
stant CFM regardless of the external static pressure (ESP) in the duct-
work. Therefore, if too many supply registers are closed, a filter
becomes clogged, or there is a restriction in the ductwork, the motor will
automatically operate at a higher speed to compensate for the higher
ESP. This may result in a higher operating sound level.
All CFM’s are shown at 0.5” w.c. external static pressure. These units
have variable speed motors that automatically adjust to provide con-
stant CFM from 0.0” to 0.6” w.c. static pressure. From 0.6” to 1.0” static
pressure, CFM is reduced by 2% per 0.1” increase in static. Operation
on duct systems with greater than 1.0” w.c. external static pressure is
not recommended.
To Set Cooling CFM:
Refer to the outdoor unit technical guide for the recommended airflow
with the matching evaporator coil. Refer to the label in the bag attached
to the blower housing or Table 3 for the possible high speed cooling and
heat pump CFM selections.
Find the recommended system airflow in the Table 6 & 7 for the
installed Air Handler model.
Select the "COOL" CFM you need from Table 3. Set "COOL" and "ADJ"
Jumpers on the CFM selection board as indicated in Table 3.
To Set Heat Pump CFM:
The heat pump CFM setting is the same as the cooling CFM. No addi-
tional CFM setting is required, however, you must remove the jumper at
the bottom of the connector board labeled "Remove for Heat Pump" for
heat pump operation (See Figure 12).
To Set Electric Heat CFM:
The blower speed required for the Electric Heat is different than cooling.
Refer to the label in the bag attached to the blower housing or Table 3
for the possible CFM selections. Refer to Tables 6 or 7 for the minimum
required CFM for the electric heater installed. Find the desired airflow in
Table 3. Set the "Heat" Jumper on the CFM selection board to tap
shown.
To Set Delay Profile:
Every variable speed air handler has multiple "blower off delay" profiles
to optimize system performance and efficiency. Refer to Table 3 or the
label in the bag attached to the blower housing for the type of system
installed. Set the "DELAY" jumper tap position horizontally on the CFM
selection board for the appropriate setting.
Fan Only CFM:
When the connection is made from "R" to "G", the fan only mode is acti-
vated. In this mode, the blower will deliver 63% of the cooling system
CFM. This connection is factory set from the manufacturer and cannot
be field adjusted.
To Install Humidistat Accessory:
If the system is used with a humidistat accessory, connect the field
wires to screw terminals "R" and "Hum" on the CFM selection board
(See Figures 14, 15 & 16).
IMPORTANT: Remove the jumper at the bottom of the connector board
marked "Remove for Humidistat" for humidistat operation.
TABLE 3:
CFM / Tap Selection
HIGH SPEED COOLING AND HEAT PUMP CFM
MODEL JUMPER SETTING
F(2,3)FV060 "COOL TAP" "ADJ TAP"
2100 "A" "B"
1980 "B" "B"
1860 "A" "A"
1750 "B" "A"
1675 "A" "C"
1605 "C" "B"
1575 "B" "C"
1510 "D" "B"
1420 "C" "A"
1335 "D" "A"
1280 "C" "C"
1200 "D" "C"
ELECTRIC HEAT CFM
MODEL TAP Selections
F(2,3)FV060 "HEAT"
1860 "A"
1750 "B"
1420 "C"
1335 "D"
DELAY PROFILE
"DELAY" TAP UNIT TYPE
Jumper at "A" N/A
Jumper at "B" Two Stage Condenser
Jumper at "C" System with TXV or with Solenoid Valve
Jumper at "D" System without TXV or without Solenoid Valve
FIGURE 12: CFM Selection Board Detail
CFM SELECTION BOARD
TAP SELECTION
D
C
B
A
D
C
B
A
COOL HEAT ADJ DELAY
REMOVE FOR
HEAT PUMP HUMIDISTAT
DO NOT change the "ADJ" tap position on the CFM selection board
as this will change your cooling CFM previously selected.
FIGURE 13: Control Box
RG
DC
W1
YW2

035-14519-002 Rev. B (1204)
Unitary Products Group 9
* May be 0 (no breaker) or 1 (with breaker).
** If first stage heat or 66 is connected to W1, otherwise refer to this table.
* May be 0 (no breaker) or 1 (with breaker).
** If first stage heat or 66 is connected to W1, otherwise refer to this table.
TABLE 4: Physical and Electrical Data
Models F2FV / F3FV(T) 060
Blower - Diameter x Width 11 x 10
Motor HP 1.0
Nominal RPM 1200
Voltage 208 / 230
Amps Full Load 7.8 / 7.0
Locked Rotor –
Filter1Type Disposable or Permanent
Size 22 x 20 x 1
Permanent Type Kit 1PF603BK
Shipping / Operating Weight (lbs.) - FP 160
TABLE 5: Conversion Table
KW & MBH Conversions - for Total Power Input Requirement
FOR 208V OPERATION
MULTIPLY 240V TABULATED KW & MBH BY .751
230V 240V .918
TABLE 6: Electrical Data - 1 Ø - 208/230-1-60
1
Models Heater
Model
Max. Static
& Min. CFM Total Heat2KW Staging**
KW MBH W1 Only W2 Only W1 + W2
Static Tap 208V 240V 208V 240V 208V 240V 208V 240V 208V 240V
F2FV060H06
F3FV060H06T
2HK*6500806B
0.5 1335
5.6 7.5 19.1 25.6 3.8 5.0 5.6 7.5 5.6 7.5
2HK*6501006B 7.5 10.0 25.6 34.1 3.8 5.0 7.5 10.0 7.5 10.0
2HK16501506B 11.3 15.0 38.6 51.2 3.8 5.0 7.5 10.0 11.3 15.0
2HK16502006B 15.0 20.0 51.2 68.3 3.8 5.0 7.5 10.0 15.0 20.0
2HK16502506B 18.8 25.0 64.2 85.3 3.8 5.0 11.3 15.0 18.8 25.0
1. Heat amps shown at 240V represents maximum heater rating.
2. See conversion Table 5.
TABLE 7: Electrical Data - 3 Ø - 208/230-3-60
1
Models Heater
Model
Max. Static
& Min. CFM Total Heat2KW Staging**
KW MBH W1 Only W2 Only W1 + W2
Static Tap 208V 240V 208V 240V 208V 240V 208V 240V 208V 240V
F2FV060H06
F3FV060H06T 2HK06501025B 0.5 1335 7.5 10.0 25.6 34.1 3.8 5.0 7.5 10.0 7.5 10.0
2HK06501525B 11.3 15.0 38.8 51.2 3.8 5.0 7.5 10.0 11.3 15.0
1. Heat amps shown at 240V represents maximum heater rating.
2. See conversion Table 5.
TABLE 8: Electrical Data - Cooling Only
MODEL
Minimum Circuit
Ampacity ALL VOLTAGES
06 Max. O.C.P.1 Amps/Type 75°C Wire Size - AWG
208V 240V
F2FV060H06
F3FV060H06T 9.7 8.8 15 14
1. OCP = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.

035-14519-002 Rev. B (1204)
10 Unitary Products Group
TABLE 9: Electrical Data - (for Single Source Power Supply) - Copper Wire 208/230-1-60
Model Heater Model1Heater
Amps 240V
Field Wiring
Min. Circuit Ampacity Max. O.C.P.2
Amps/Type 75°C Wire Size - AWG
208V240V208V240V208V240V
F2FV060H06
F3FV060H06T
2HK*6500806B 31.3 43.8 47.8 45 50 8 8
2HK*6501006B 41.7 55.2 60.8 60 70 6 4
2HK16501506B 62.5 78.0 86.9 80 90 4 3
2HK16502006B 83.3 100.3 112.9 110 125 2 1
2HK16502506B 104.2 123.1 139.0 125 150 1 1/0
1. May be 0 or 1 (No Breaker or Breaker)
2. O.C.P. = Over-Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
TABLE 10: Electrical Data - (for Single Source Power Supply) - Copper Wire 208/230-3-60
Model Heater Model1
Field Wiring
Min. Circuit Ampacity Max. O.C.P.2 Amps/Type 75°C Wire Size - AWG
208V 240V 208V 240V 208V 240V
F2FV060H06
F3FV060H06T 2HK06501025B 48.6 52.9 50 60 8 6
2HK06501525B 48.6 52.9 50 60 8 6
1. May be 0 or 1 (No Breaker or Breaker)
2. O.C.P. = Over-Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse.
TABLE 11: Electrical Data - (for Multi-Source Power Supply) - Copper Wire 208/230-1-60
Model Heater Model
Min. Circuit Ampacity Max. O.C.P.1 Amps/Type 75°C Wire Size - AWG
Circuit Circuit Circuit
1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd
208/240V 208/240V 208/240V 208/240V 208/240V 208/240V 208/240V 208/240V 208/240V
F2FV060H06
F3FV060H06T
2HK16501506B 33.0/34.8 45.1/52.1 - 35/35 50/60 - 8/8 8/6 -
2HK16502006B 55.2/60.8 45.1/52.1 - 60/70 50/60 - 6/4 8/6 -
2HK16502506B 33.2/34.8 45.1/52.1 45.1/52.1 35/35 50/60 50/60 8/8 8/6 8/6
1. O.C.P. = Over Current Protection device, must be HACR type Circuit Breaker or Time Delay fuse..
FIGURE 14: Cooling Models with Electric Heat Wiring
THERMOSTAT
CFM SELECTION
BOARD
FIELD
INSTALLED
JUMPER
OUTDOOR
UNIT
DEHUMIDIFICATION
CONTROL CONNECTION
(”HUMIDISTAT” JUMPER ON
CFM SELECTION BOARD
MUST BE REMOVED
CONTROL BOARD
NOTE: THERMOSTAT TERMINAL “W” NOT USED FOR COOLING ONLY.
R
Y
G
W
R
Y
G
W2
W1
O
C
HUM
X
Y1
Y2

035-14519-002 Rev. B (1204)
Unitary Products Group 11
FIGURE 15: Two-Stage Cooling Wiring
Y1
Y2
RR
Y
G
W2
Y1
Y2
X
R
HUM
X
Y1
Y2
W1
O
C
G
W2
W1
CC
Y2 OUT
DEHUMIDIFICATION CONTROL CONNECTION
(”HUMIDISTAT” JUMPER ON CFM SELECTION BOARD
MUST BE REMOVED)
INDOOR UNIT CFM
SELECTION BOARD
THERMOSTAT
(TWO STAGE COOLING
MUST BE USED)
INDOOR UNIT CFM
CONTROL BOARD
WIRE NUT
YEL
BRN
PUR
BRN
BRN
BLU
NOTE: THERMOSTAT TERMINAL “W1, W2” NOT USED FOR COOLING ONLY.
FIGURE 16: Heat Pump Wiring
DEHUMIDIFICATION CONTROL CONNECTION
(”HUMIDISTAT” JUMPER MUST BE REMOVED)
ALL WIRING TO BE IN ACCORDANCE WITH NATIONAL ELECTRIC CODE AND/OR LOCAL CODES
INDOOR UNIT
LOW VOLTAGE TERMINAL BLOCK
IN AIR HANDLER WITH ELECTRIC HEAT
3,4
THERMOSTAT OUTDOOR UNIT
DEFROST
CONTROL GND.
SCREW
**TERMINAL NOT
AVAILABLE ON ALL
THERMOSTATS.
IMPORTANT NOTE:
HEAT PUMP JUMPER
ON THE CFM
SELECTION BOARD
MUST BE REMOVED
WHEN AIR HANDLER
IS USED WITH A HEAT
PUMP UNIT.
7 WIRES
CONTROL
BOARD
CFM SELECTOR
BOARD
CONTACTOR
T2 T1
L2 L1
M
POWER WIRING
208/230-1-60
230-1-50
CHECK THE LOW VOLTAGE TERMINAL BLOCK ON THE INDOOR UNIT FOR THE ACTUAL ARRANGEMENT OF THE TERMINALS.
CONNECT POWER WIRING TO TERMINAL BLOCK 3TB ON UNITS WITHOUT ELECTRIC HEAT OR CIRCUIT BREAKER.
3
4
POWER WIRING
24V CONTROL WIRING
(NEC CLASS 2)
JUMPER TERMINALS E AND W TO HEAT ON FIRST STAGE DURING EMERGENCY HEAT.
TERMINAL NOT USED ON ALL THERMOSTATS.
1
2
FIELD
INSTALLED
JUMPER
1
GND.
LUG
CIRCUIT
BREAKER***
WIRE NUT
OR SCREW
TERMINALS
O
R
W
G
Y
T2
E2
RYG
W2 W1 OCY2 Y1 XHum
O
X
R
C
W
Y
W1
LorX
BorC
FIELD
INSTALLED
JUMPER
RED
YEL
GRN
BRN
WHT
ORG
BLK
PUR

Subject to change without notice. Printed in U.S.A. 035-14519-002 Rev. B (1204)
Copyright © by York International Corp. 2004. All rights reserved. Supersedes: 035-14519-002 Rev. A (0604)
Unitary 5005 Norman
Product York OK
Group Drive 73069
DRAIN CONNECTIONS
All drain lines should be trapped a minimum of three inches, should be
pitched away from unit drain pan and should be no smaller than the coil
drain connection.
Route the drain line so that it does not interfere with accessibility to the
coil, air handling system or filter and will not be exposed to freezing
temperatures. See Figures 2, 3 and 4.
NOTE: When the coil is installed in an attic or above a finished ceiling,
an auxiliary drain pan should be provided under the coil as is
specified by most local building codes.
Coils should be installed level or pitched slightly toward the drain end.
Suggested pitch should not exceed 1/4 inch per foot of coil.
The coil is provided with a secondary drain that should be trapped and
piped to a location that will give the occupant a visual warning that the
primary drain is clogged. If the secondary drain is not used it must be
capped.
The drain pan connections are designed to ASTM Standard D 2466
Schedule 40. Use 3/4" PVC or steel threaded pipe. Since the drains are
not subject to any pressure it is not necessary to use Schedule 40 pipe
for drain lines.
It is recommended that all drain connections be sealed with teflon tape
or equivalent.
MAINTENANCE
Filters must be cleaned or replaced when they become dirty. Inspect at
least once per month. The frequency of cleaning depends upon the
hours of operation and the local atmospheric conditions. Clean filters
keep unit efficiency high.
COIL CLEANING
If the coil needs to be cleaned or replaced, it should be washed with
Calgon coilclean (mix one part Coilclean to seven parts water). Allow
solution to remain on coil for 30 minutes before rinsing with clean water.
Solution should not be permitted to come in contact with painted sur-
faces.
LUBRICATION
The bearings of the blower motor are permanently lubricated.
CONDENSATE DRAINS
During the cooling season check the condensate drain lines to be sure
that condensate is flowing from the primary drain but not from the sec-
ondary drain. If condensate ever flows from the secondary drain the unit
should be promptly shut off and the condensate pan and drains cleaned
to insure a free flowing primary drain.
Threaded drain connection should be hand-tightened, plus no
more than 1/16 turn.
Horizontal drain cutout in the center access panel should be
removed by using a utility knife. DO NOT TRY TO KNOCK OUT.
TROUBLESHOOTING GUIDE
PROBLEM POSSIBLE CAUSE
Blower Runs all of the time
1. No heat units do not have 6-pin connector installed.
2. Limit open or not connected.
3. Blower OFF delay (approx. 1 min).
4. Thermostat fan switch in “ON” position.
Blown Fuse 1. Low voltage short to C or ground from R, Y, G, W, or O.
No 24V 1. 4-pin connector loose. 2. Loose wire from control to transformer (24V and 230V).
3. Blown fuse on control board.
No 2nd stage heat 1. Check 6-pin connector and connections to panel mount relays.
2. Verify that both W1& W2are connected at the terminal strip.
No Heat or Limited Heating
1. Check filter.
2. Closed registers.
3. Restricted airflow (supply registers or return registers)
4. Check blower motor operation.
5. If the safety limit opens 4 times, the control will not permit the heating element to operate for 1 hour.