YORK INTERNATIONAL
20
Installation
FIG. 20 –
FACTORY COIL CONNECTIONS
LD06340
WATER COILS - DRAINABLE WATER
Connect the water supply to the header connection on
the leaving air side of the coil to achieve the counterflow
of water and air. The return pipe will be connected to
the remaining coil connection.
Positive coil freeze protection must be used in installa-
tion where any part of the water coil is subjected to
temperatures of 32 degrees or lower. This may be ac-
complished by using a suitable antifreeze solution. If
PIPE CHASE INSTALLATION
Tools Required
• 3/8" Hex socket
• 12" Extender
• Ladder
• Tapered punch or awl
• Air or electric driver capable of 1800 - 2200 rpm.
• Ship loose package included inside unit. (3/8" x 1"
cap screws, 1 tube caulk and 1 roll of butyl tape)
• Tighten all cap screws to 30 in.-lbs. minimum
• Two-man team is recommended, pipe chase weight
100+ lbs.
Procedure
1. Remove and save all 3/8" x 1" cap screws from the
header cover.
2. Header cover will remain in place by the butyl tape
under the screw holes.
3. Apply 3/4" wide x 1/8" thick butyl tape to face side
of the header cover to cover the holes around the
perimeter. (Tape provided in package.)
4. Lift pipe chase onto frame (100 lbs.+) and align
holes to restart cap screw that were removed from
cover. Use awl or tapered punch to align holes to
start first few cap screws. Install all cap screws
and tighten. Use an extender to install the top row
and tighten. Secure the pipe chase base to the
mounting brackets located on the unit base frame.
5. Open door and secure pipe chase floor to header
cover.
6. Caulk all interior joints of cabinet with Sikaflex 221
to provide air tight seal. (See Figure 19). Caulk pro-
vided in ship loose package.
7. Place rubber pad onto the floor of the pipe chase.
8. All holes made into the pipe chase floor must be
sealed and insulated to avoid condensation entering
into the building.
YORK part number for Sikaflex 221
is 013-02966-000.
the coil is not is use, it is recommended that the coil be
completely drained and the inside of the tubes blown
dry with compressed air.
Other means of protection such as various electro-me-
chanical switches and the full constant flow of water
can be used; however, YORK will not be responsible
for water coils damaged by freezing.
Install an air vent in the return header of each coil.
