3
JOHNSON CONTROLS
FORM 115.20-NOM6 (1106)
INSTALLATION
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.
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.
If units are to be stored for six months or longer,
see
long term storage requirements (Form 50.20-NM3).
DESCRIPTION
The YCW models are available as 2-pipe cooling
(YCW), 2-pipe cooling with electric heat (YCWE)
and a 4-pipe heating/cooling (YCW-HW). All units are
provided with a 3-speed fan control in the control box
in the fan section (left side), with 24v access on the top
panel, left. Manual and auto changeover thermostats
and the T200 auto speed control thermostats can be
used with this unit. Twenty-four volt (24 v) power is
provided in the unit for thermostat operation.
The 2-pipe cooling unit is provided with a single coil
with connections on the top panel, right side.
The 2-pipe cooling with electric heat is provided
with a single chilled water coil and electric heat ele-
ments; coil connections are on the top panel, right
side; electrical connections are on the top panel, left
side and the units are provided with a disconnect on
the front panel.
The 4-pipe heating/cooling unit is provided with 2
coils with single end sheets – cooling connections are
on the top panel, right side and the hot water connec-
tions are on the top panel, middle front.
This unit is designed to be installed vertically in the
upflow position and can be installed on a closet plat-
If damage is found, a claim should be
filed against the carrier immediately.
form (platform not provided), hung on a closet wall
(use wall hanging kit option) or recessed in a wall
between wall studs (use front panel kit option).
FEATURES
Non-corrosive drain pan, installed in sloped position,
¾” female primary and secondary connections acces-
sible from either side or bottom.
Filters provided, are 1” throwaway accessible from
the front.
Coils and fan motor/blower assemblies accessible
from the front, when installed with the optional front
panel assembly.
Front air return standard, optional bottom return avail-
able but requires bottom return option.
Options available are thermostats, wall front panels,
condensate pan overflow switch, closet hanger bracket
kit, bottom return air kit and chilled water coil valve
packages. Consult applications group
@
717-771-
7073 for details on ordering and availability of these
options.
Cabinet is fully insulated with 1” coated fiberglass
panels.
All units have 0” clearance to combustible surfaces,
so the units can be installed against wall studs and
drywall.
CLEARANCES
Clearance required in front of the unit to provide
access to coils, electrical controls and motor/blower
assembly. This clearance should be equal to the depth
of the cabinet.
MOUNTING - YCW UNIT STYLE
Recessed In Wall
All units must be installed level to insure proper drain-
age and operation.
1. Frame the unit as required so the front panel
of the wall unit will be flush with the drywall
surface when installed
(see Fig. 3).
