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YORK INTERNATIONAL

4

FORM 115.20-NOM3 (1006)

INSTALLATION

WIRING

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 sup-

plied with the unit. Failure to do so 

could result in damage or injury.

4

V A L V E

L (L 1)
N (L 2)

P OWE R
S UP 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 T B 3-2

T B 2-2

T B 2-4

T B 2-3

T B 1-4 TB 2-1

HE A T

OF F

C OOL

ME D

HI

HE A T

C OOL

L O

L 1

T B 3-3

T B 2-5

MOT OR

T B 1-1 T B 1-2

T B 3-1

T B 2-2

T B 3-2

T B 2-3 T B 2-4 T B 1-4 T B 2-1

T B 3-3

MOT OR

OF F

C OOL

ME D

HI

LO

L (L1)
N (L2)

L1

ON

V ALV E

R IS E

AQUAS T AT

P OWE R

S UP P LY

G R D

HE AT

T B 2-5

1

2

3

4

1

2

3

4

T HE R MIS T OR

(UNIT -MT D)

(OP T IONAL)

FIG. 2 - MANUAL CHANGEOVER,

 

CONTINUOUS FAN, T420 THERMOSTAT.

 

NO AQUASTAT LOCKOUT

2-PIPE HEAT / COOL

FIG. 3 - AUTO CHANGEOVER,

 

CONTINUOUS FAN, T421 THERMOSTAT.

LDO6889

LDO6890

 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.

Summary of Contents for 10YWC

Page 1: ...d 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 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 dut...

Page 2: ...ough Publications Dept or downloaded http intranet york com web0003 library default asp LDO6704 INSTALLATION 3 10 RECEIVING 3 STORAGE 3 PREPARE WALL FOR MOUNTING 3 WIRING 4 PIPING 5 STARTUP CHECKLIST 11 MAINTENANCE 12 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 Coo...

Page 3: ... 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 Mou...

Page 4: ...B2 2 TB3 2 TB2 3 TB2 4 TB1 4 TB2 1 TB3 3 MOTOR OFF COOL ME D HI LO L L1 N L2 L1 ON VALVE R IS E AQUAS TAT POWE R S UPPLY GR D HE AT TB2 5 1 2 3 4 1 2 3 4 THE R MIS TOR UNIT MTD OPTIONAL FIG 2 MANUAL CHANGEOVER CONTINUOUS FAN T420 THERMOSTAT NO AQUASTAT LOCKOUT 2 PIPE HEAT COOL FIG 3 AUTO CHANGEOVER CONTINUOUS FAN T421 THERMOSTAT LDO6889 LDO6890 3 Mount the unit in its permanent location making sur...

Page 5: ...es PIPE SIZES Tubing connections are 5 8 OD on all models Manual air vents are provided standard on all coils All chilled water piping must be insulated to prevent condensation PRECAUTIONS 1 Flush all field piping prior to connection to remove all debris 2 Use wet cotton rags to cool valve bodies when soldering 3 Open all valves mid way for hand valves manually open on motorized valves prior to sol...

Page 6: ...d be installed with consideration of additional space for any electrical routing that may be required 11 Hydronic systems are not designed to hold pres surized air and should only be tested with water After the system has been proven leak free all lines and valve control packages must be insulated as specified on the building plans DRAIN PIPING Drain line installation must adhere to all code requir...

Page 7: ...ITS WITH NONSTANDARD VALVE PACKAGES 9 5 16 SECONDARY PLASTIC DRAIN PAN 0 84 O D FOR 3 4 PVC PIPE C L UNIT SIZES 10 12 Have two openings 2 apart centered on center line 16 2 1 2 1 2 YVS YVF BACK TOP FRONT END END 1 2 PERMANENT FILTER REMOVABLE THRU RETURN AIR OPENING PLASTIC DISCHARGE GRILLE LEFT HAND UNIT SHOWN RH LH 7 1 4 5 1 8 9 1 4 2 3 8 25 3 3 4 4 1 2 7 7 8 9 1 4 3 3 4 27 5 8 4 1 2 7 7 8 GENER...

Page 8: ...RONT ACCESS PANEL CONTROL BOX RETURN AIR OPENING MTG HOLES 1 2 PERMANENT FILTER REMOVABLE THRU RETURN AIR OPENING 1 SUPPLY DUCT COLLAR TOP FRONT END A E D C B 1 7 8 1 7 8 7 8 7 8 8 7 1 4 5 1 8 19 3 8 6 5 8 5 5 9 1 4 2 24 1 2 3 5 RIGHT HAND UNIT SHOWN Hand of unit determined by cooling coil connection when facing the front of unit LDO10367 GENERAL DIMENSIONS IN INCHES MODEL A B C D E 3 YVC 27 1 2 1...

Page 9: ...10 YWC 59 1 2 57 1 2 58 1 2 55 3 4 12 YWC 67 1 2 65 1 2 66 1 2 63 3 4 22 3 8 DIMENSIONS VARY FOR UNITS WITH NON STANDARD VALVE PACKAGES ALL DIMENSIONS ARE IN INCHES SUPPLY RETURN WATER CONNECTIONS 1 2 DIA MTG HOLES 2 EACH SIDE SECONDARY PLASTIC DRAIN PAN 0 84 O D FOR 3 4 PVC PIPE CONTROL BOX RETURN AIR OPENING MTG HOLES 1 2 PERMANENT FILTER REMOVABLE THRU RETURN AIR OPENING TOP FRONT RIGHT HAND UN...

Page 10: ...ES 2 EACH SIDE WIDTH HEIGHT RETURN AIR OPENING RIGHT HAND UNIT SHOWN RIGHT HAND UNIT SHOWN A MODEL DRYWALL CUTOUT DIMENSIONS MODEL HEIGHT WIDTH MINIMUM HEIGHT ABOVE FLOOR A 3YWC 28 42 6 4YWC 28 50 6 6YWC 28 58 6 8YWC 28 68 6 10YWC 28 74 6 12YWC 28 82 6 FIG 10 YWC FAN COIL INSTALLATION LOCATION DIMENSIONS ...

Page 11: ...d Unit checked for damage interior and exterior Make sure all ductwork is complete and available for full air flow Unit installed level to ensure proper drainage and operation Unit installed with proper clearances Ensure condensate water will drain toward the drain connection An overflow drain may be required as a back up to a clogged primary drain Check that coil s valves and piping have been leak ...

Page 12: ...six to eight weeks The filter is a permanent type and may be removed and washed with a garden hose Filter should be completely dry before reinstalling To remove the filter rotate the retaining rod holding the front edge of the filter so it can drop below the front panel of the cabinet then pull outward to remove To reinstall the filter slide the filter into the filter channels on both sides of the unit ...

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