5120416-XIM-C-0216
2
Johnson Controls Unitary Products
LIST OF FIGURES
1 DC180-300 Component Location . . . . . . . . . . . . . . . . . . 6
2 Unit 4 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Unit 6 Point Load Weight . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 DC180-300 Unit Dimensions Rear View . . . . . . . . . . . . 11
7 DC180-300 Unit Dimensions Rain Hood . . . . . . . . . . . . 12
8 Roof Curb Dimensions (All Models) . . . . . . . . . . . . . . . . 13
9 Roof Curb Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
10 Unit Curb And Applications . . . . . . . . . . . . . . . . . . . . . . 13
11 Fixed Outdoor Air Damper . . . . . . . . . . . . . . . . . . . . . . . 14
12 Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
13 Field Wiring Disconnect - Cooling Unit With/Without Electric
Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
14 Typical Field Wiring 24 Volt Thermostat . . . . . . . . . . . . 17
15 External Supply Connection External Shut-Off . . . . . . . 20
16 Bottom Supply Connection External Shut-Off . . . . . . . . 20
17 Vent and Combustion Air Hood . . . . . . . . . . . . . . . . . . . 22
18 SE-ECO1001-0 Economizer Controller . . . . . . . . . . . . . 24
19 Belt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
20 Altitude/Temperature Correction Factors Imperial . . . . . 29
21 Altitude/Temperature Correction Factors Metric . . . . . . 29
22 Pressure Drop Across A Dry Indoor Coil Vs. Supply Air CFM
For All Unit Tonnages . . . . . . . . . . . . . . . . . . . . . . . . . . 36
23 Gas Valve Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
24 Gas Heat Limit And Auxiliary Location Down Discharge
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
25 Gas Heat Limit and Auxiliary Location Side Discharge
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
26 Gas Valve and Controls . . . . . . . . . . . . . . . . . . . . . . . . . 43
27 Proper Pilot Flame Adjustment . . . . . . . . . . . . . . . . . . . 45
28 Typical Flame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
29 Typical Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
30 Unit Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
General
YORK
®
Model DC units are either single package air conditions
or single package gas-fired central heating furnaces with cooling
unit. Both are designed for outdoor installation on a rooftop or
slab.
The units are completely assembled on rigid, permanently
attached base rails. All piping, refrigerant charge, and electrical
wiring is factory installed and tested. The units require electric
power, gas connection, duct connections, installation of
combustion air inlet hood, flue gas outlet hoods and fixed
outdoor air intake damper (units without economizer or
motorized damper option only) at the point of installation.
These gas-fired heaters have aluminized-steel or optional
stainless steel, tubular heat exchangers with spark ignition with
proven pilot. All gas heaters are shipped from the factory equipped
for natural gas use, but can be field converted to L.P./Propane with
Kit Model # 1NP0418. See Gas Heat Application Data Table.
Safety Considerations
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal injury.
Understand and pay particular attention the signal words
DANGER
,
WARNING
or
CAUTION
.
DANGER
indicates an
imminently
hazardous situation, which,
if not avoided,
will result in death or serious injury.
WARNING
indicates a
potentially
hazardous situation, which,
if not avoided,
could result in death or serious injury.
CAUTION
indicates a potentially hazardous situation, which, if
not avoided
may result in minor or moderate injury.
It is also
used to alert against unsafe practices and hazards involving
only property damage.
Improper installation may create a condition where the
operation of the product could cause personal injury or
property damage. Improper installation, adjustment,
alteration, service or maintenance can cause injury or
property damage. Refer to this manual for assistance or
for additional information, consult a qualified contractor,
installer or service agency.
This product must be installed in strict compliance with
the installation instructions and any applicable local,
state and national codes including, but not limited to
building, electrical, and mechanical codes.
Before performing service or maintenance operations on
unit, turn off main power switch to unit. Electrical shock
could cause personal injury. Improper installation,
adjustment, alteration, service or maintenance can
cause injury or property damage. Refer to this manual.
For assistance or additional information consult a
qualified installer, service agency or the gas supplier.
