background image

MAINTENANCE

MOTOR

The blower motor should be cleaned annually and if it 

has oiling ports, it should be oiled with a good grade of 

SAE 20 oil. Normally a few drops of oil in each bearing 

is sufficient.

If  motor  service 

is 

required, 

it 

can  be  removed 

in  the 

following manner:
  1.  Disconnect electrical power to 

the 

unit at 

the 

discon-

nect switch and lock out.

  2.  Remove two screws, securing blower deck 

to 

unit.

  3.  Locate motor lead wires where they connect 

to 

the 

side panel, (lower rear on the electrical box side).

  4.  The quick connect plug needs 

to 

be squeezed on top 

and bottom to release 

it 

from 

its 

socket (dual motor 

units 

have two plugs).

  5.  Now slide blower 

motor deck out of 

unit to ser-

vice.

  6.  Reverse process to install.

COIL

The coil must be kept clean by any of the following 

methods.
 1.  Cleaning with low-pressure compressed air.
 2.  Flushing or rinsing with water (a detergent is ad-

visable for greasy surfaces).

 3.  Prior to the water system start-up and balancing, the 

chilled/hot water systems should be flushed to clean 

out dirt and debris, which may have accumulated 

during construction. All unit service valves are to 

be closed during this process. Strainers are to be 

installed in the piping mains to prevent this material 

from entering the units during normal operation.

FILTERS

Clean or Replace Air Filters Regu-

larly

The  intervals  at  which  filters  require  replacement 

depend on local conditions.

Because of dust and lint in the room, room-air filters load 

up much more rapidly than outdoor-air filters.  Under 

normal conditions, the room air filter requires cleaning 

every 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.  Rotate 

filter retaining rod on lower front edge of cabinet door 

so that it is under the filter, then push the rod upward 

into the cabinet door.

To ensure proper maintenance of the filters, it is best 

to follow an organized maintenance procedure.  The 

following one is recommended:
Divide the total number of units on the job into six 

equal groups.  Each week inspect, clean or replace the 

filters in each group, in rotation.  This insures a uniform 

servicing interval.  The interval may be lengthened or 

shortened as determined by experience.  If inspection 

shows only the room-air filter to be dirty, this one alone 

should be replaced.

Dirty filters reduce the air and heating 

capacities of the Unit.  When the filters 

are excessively dirty, the unit heating 

capacity will be so reduced that it is in-

effective for heating the room.  When 

a room fails to heat, always check the 

filters.

CLEAN UNIT INTERIOR

Once  a  year  clean  the  fans  and  coils  of  the  unit 

thoroughly.  Remove the access panel as necessary.

Wipe the interior of the unit clean with a rag.  Wipe the 

motor and inside and outside of the fan housings.  (In 

cooling units, clean out the drain pan.)

Tele. 800-861-1001

www.York.com

P.O. Box 1592, York, Pennsylvania USA  17405-1592 

Subject to change without notice. Printed in USA

Copyright © by Johnson Controls 2006 

ALL RIGHTS RESERVED

Form 115.20-NOM3 (1006) 
Supersedes: Form 115.20-NOM3 (105) 

Summary of Contents for FAN COIL YVC

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 ...

Reviews: