York YWC User Manual
FAN COIL
AIR CONDITIONERS
INSTALLATION, OPERATION, & MAINTENANCE
YVC
YVF/YVS
00803VIPa
Supersedes: Form 115.20-NOM3 (105)
MODEL YVC -Vertical Concealed Model
The YVC model fan coil is designed to be furred into the
wall where the supply and return or both are connected
to short runs of ductwork. These units are often used
for perimeter heating and cooling of offices, corridors,
hospitals, apartments, hotels, and other multi-room
00563VIPa
buildings.
MODEL YVS I YVF -Vertical Cabinet Models YVS
(Slant Top), YVF (Flat Top)
The YVS I YVF model fan coils have the addition of an
attractive, painted cabinet to blend with any decor. These
units will have heavy-duty stamped face louvered grilles
(Style A), plastic discharge grilles (Style A), or metal
grilles (Style B). These units are typically installed in
plain sight, under windows or against walls in schools,
hospitals, office buildings, and other institutions.
Form 115.20-NOM3 (1006)
MODEL YWC -Vertical Recessed Wall Model
The YWC model fan coil is designed to be recessed
into the wall. These units are engineered to be quiet and
designed to be easy to install and service. These units
are ideal for perimeter heating and cooling in hotels,
YWC
apartments, hospitals, public office buildings, offices,
corridors, and other multi-room buildings. This unit
comes standard with a decorative wall panel for front
00771VIPa
Notes:
1. 2-Pipe units have one water coil. 4-Pipe units have two water coils.
2. Changeover is used to select heating or cooling mode.
3. YORK International does not recommend “fan cycle” applications for cooling on unit mounted thermostats.
4. For proper operation, control valve must be normally closed.
5. Aquastats provided where required.
supply and return air.
***** WARNING TO INSTALLER, SERVICE PERSONNEL AND OWNER *****
Altering the product or replacing parts with non authorized factory parts voids all warranty or
implied warranty and may result in adverse operational performance and/or a possible hazardous
safety condition to service personnel and occupants. Company employees and/or contractors are
not authorized to waive this warning.
L23953Y 1006
YORK INTERNATIONAL
2
FORM 115.20-NOM3 (1006)
TABLE OF CONTENTS
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WIRING
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12 - - - -YVC 126 31 R YPP* N1
CFM (100'S)
3,4,6,8,10,12
CONTROL OPTIONS
VALVE PACKAGE
COIL CONNECTIONS
R - Right Hand
L - Left Hand
COIL TYPE
3 - 3 Row
4 - 4 Row
31 - 3 Row Cool, 1 Row Heat
41 - 4 Row Cool, 1 Row Heat
UNIT STYLE
YVC - Concealed
YVF - Cabinet Flat Top
YVS - Cabinet Slope Top
YWC - Recessed Wall
UNIT VOLTAGE
126 - 120V - 1PH - 60Hz
246 - 208/240V - 1PH - 60Hz
225 - 220V - 1PH - 50Hz
277 - 277V - 1PH - 60Hz
INSTALLATION
FORM 115.20-NOM3 (1006)
RECEIVING
Material in this shipment has been inspected at the
factory and released to the transportation agency in
good condition. When received, a visual inspection of
all cartons should be made immediately. Any evidence
of rough handling or apparent damage should be noted
on the delivery receipt and the material inspected in the
presence of the carrier's representative.
If damage is found, a claim should be
filed against the carrier immediately.
STORAGE
If the equipment is not to be immediately installed, store
it in a dry location with the motor protected against
moisture, dust, corrosion and physical damage.
PREPARE WALL FOR MOUNTING
Depending upon building construction, provisions
for mounting the unit must be made by the contractor
according to architects; drawings.
It is recommended that all mounting
holes be used for proper installation.
Unit must not be operated during
building construction due to excessive
airborne dust and debris. The units
must not be operated under any circumstances without an air filter in
place.
YVS / YVF UNIT STYLE (VERTICAL CABINET)
See Fig 7 for unit details and dimensions.
Mounting location must allow enough clearance to
permit the removal of screws that secure the cabinet
panels. After selecting the location for the unit, remove
the front panel. The front panel must be removed on
the YVS or YVF unit to gain access to the coil, drain
connections and electrical junction box. To accomplish
this:
1. Pull firmly on the lower cabinet door (each side)
until the cabinet releases from its friction fastener.
2. Proceed to lift the door assembly straight up and
off the cabinet frame.
YVC UNIT STYLE ( VERTICAL CONCEALED)
See Fig 8 for unit details and dimensions.
Mounting location must allow enough clearance to
permit the removal of screws that secure the cabinet
panels. After selecting the location for the unit:
1. Remove the front panel.
2. Position the unit in its permanent location, making
sure it is level to insure proper drainage and operation, and secure the unit in place.
3. Secure the unit to the wall using the four, 1/2 inch
holes provided (two on each end of the unit).
Access must be provided for servicing the unit. If this
access is provided by a removable panel, ample space
must be allowed for access to electrical and plumbing
controls.
YWC UNIT STYLE (RECESSED WALL)
See Fig 9 for unit details and dimensions.
Mounting location must allow enough clearance to
permit the removal of all mechanical parts within the
unit.
1. Frame the unit as required so the front panel of the
wall unit will be flush with the drywall surface when
installed.
2. Frame around the perimeter of the unit as required
for securing the drywall. See Table 1 below for
drywall openings.
MODEL NUMBER DRYWALL CUTOUT DIM
HT x WD
3YWC 28 x 42
4YWC 28 x 50
6YWC 28 x 58
8YWC 28 x 66
10YWC 28 x 74
12YWC 28 x 82
TABLE 1 – DRYWALL OPENINGS
YORK INTERNATIONAL
3
INSTALLATION
4
VA L V E
L (L 1)
N (L 2)
P OW E R
S U P P L Y
G R D
1
2
3
4
1
2
3
T B 1-1
T B 1-2
T B 3-1 TB 3 -2
T B 2-2
T B 2-4
T B 2-3
T B 1-4
T B 2-1
HE AT
OF F
C OO L
ME D
HI
HE AT
C OO L
L O
L 1
T B 3-3 T B 2-5
MO TO R
TB 1 -1
TB 1 -2
TB 3 -1
TB 2 -2
TB 3 -2
TB 2 -3
TB 2 -4
TB 1 -4
TB 2 -1
TB 3 -3
MOT O R
OF F
C OO L
ME D
HI
LO
L
(L 1)
N ( L2)
L1
ON
VA LV E
R IS E
AQ UA S T AT
P OW E R
S U P P LY
G R D
HE A T
TB 2 -5
1
2
3
4
1
2
34
TH E R MIS T O R
(U NIT -M TD )
(O P T ION AL )
WIRING
FORM 115.20-NOM3 (1006)
3. Mount the unit in its permanent location; making
sure it is level to insure proper drainage
and operation. 2 – ½” holes have been provided on
each end of the unit for securing the unit to the wall
studs.
4. After the drywall has been installed, recheck to
make sure the unit’s front panel is flush with the
exterior drywall surface. Shimming of the unit
may be required to get a seal between the unit and
panel.
5. Install the wall panel to the front of the unit using the
¼-20 x 1-1/2” long, painted, Phillips head screws
(4 on unit sizes 3,4,6 and 8; 6 on unit sizes 10 and
12). ¼” cage nuts are located in the slotted front
panel of the unit.
6. Remove the lower return air grille to get access to
the filter.
2-PIPE HEAT / COOL
All wiring must comply with the local and national code
requirements. Units are provided with wiring diagrams
and nameplate data to provide information required for
necessary field wiring.
For power wiring a control box is provided on the
cabinet for connection of power supply and is located
on the opposite side of piping.
Any devices such as fan switches or
thermostats that have been furnished
by the factory for field installation
must be wired in strict accordance
with the wiring diagram that is supplied with the unit. Failure to do so
could result in damage or injury.
FIG. 2 - MANUAL CHANGEOVER,
CONTINUOUS FAN, T420 THERMOSTAT.
NO AQUASTAT LOCKOUT
4
LDO6889
LDO6890
FIG. 3 - AUTO CHANGEOVER,
CONTINUOUS FAN, T421 THERMOSTAT.
YORK INTERNATIONAL
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