Daikin DCG036XXX1DXXX User manual

Copyright ©2013
RTD6412016
June 2013
This manual is to be used by qualified, professionally trained HVAC
technicians only. Daikin does not assume any responsibility for property
damage or personal injury due to improper service procedures per-
formed by an unqualified person.
•Refer to Service Manual RSD6412006 for installation, operation, and troubleshooting information.
•All safety information must be followed as provided in the Service Manual.
•Refer to the appropriate Parts Catalog for part number information.
•Models listed on page 4.
DCG Commercial Gas Units
3 - 6 Tons with R410A
TECHNICAL MANUTECHNICAL MANU
TECHNICAL MANUTECHNICAL MANU
TECHNICAL MANUALAL
ALAL
AL

2
WARNING
WARNING HIGH VOLTAGE!
Disconnect ALL power before servicing or installing this unit. Multiple power
sources may be present. Failure to do so may cause property damage, personal
injury or death.
Daikin will not be responsible for
any injury or property damage
arising from improper service or service procedures. If
you install or perform service on this unit, you assume
responsibility for any personal injury or property damage
which may result. Many jurisdictions require a license to
install or service heating and air conditioning equipment.
WARNING
WARNING WARNING
WARNING
The United States Environmental Protection Agency (“EPA”) has issued various regulations re-
garding the introduction and disposal of refrigerants introduced into this unit. Failure to follow
these regulations may harm the environment and can lead to the imposition of substantial fines.
These regulations may vary by jurisdiction. Should questions arise, contact your local EPA office.
WARNING
WARNING
Do not connect or use any device
that is not design certified by Daikin
for use with this unit. Serious prop-
erty damage, personal injury, reduced unit performance
and/or hazardous conditions may result from the use of
such non-approved devices.
WARNING
WARNING To prevent the risk of property
damage, personal injury, or death,
do not store combustible materials or use gasoline or
other flammable liquids or vapors in the vicinity of this
appliance.
WARNING
WARNING
ONLY individuals meeting (at a mini-
mum) the requirements of an "en-
try level technician" as specified by the Air-Conditioning,
Heating, and Refrigeration Institute (AHRI) may use this
information. Attempting to install or repair this unit
without such background may result in product damage,
personal injury or death.
TABLE OF CONTENTS
PRODUCT IDENTIFIACTION...................................................3 - 4
PRODUCT DESIGN
-OVERVIEW............................................................... 5
-LOCATION AND CLEARANCES.................................. 5
-ROOFTOP INSTALLATION..........................................6
-RIGGING INFORMATION............................................ 6
-HIGH ALTITUDE DERATE........................................... 7
-BLOWER PERFORMANCE DATA CHART................... 8
ELECTRICAL DATA................................................................. 7 - 9
A* REVISION UNITS
-PRODUCT DIMENSIONS...........................................10
-CORNER WEIGHTS..................................................11
-COOLING SPECIFCIATIONS................................12 - 16
-BLOWER PERFORMACE DATA..........................17 - 22
-HIGH STATIC..........................................21 - 22
-COOLING PERFORMANCE DATA........................23 - 31
-WIRING DIAGRAMS............................................32 - 51
-ACCESSORIES.........................................................52

PRODUCT IDENTIFICATION
3
The model number is used for positive identification of component parts used in manufacturing. Please use this number
when requesting service or parts information.
D C C 240 60 3 B * * * A*
1 2 3 4, 5, 6 7, 8, 9 10 11 12 13 14 15 16
Brand
DDaikin Major & Minor
Configuration
C Co mmercial Package X No Options
A Non-powered convenience outlet
Application B Powered convenience outlet
CCooling C L ow Ambient Kit
GGasHeat D Return air smoke detector
HHeatPump E Supply air smoke detector
F Non-powered convenience outlet;
Low Ambient Kit
Nominal Gross Cooling Capacity G Non-powered convenience outlet;
036 3 Tons 102 8½ Tons Return air smoke detector
048 4 Tons 120 10 T ons H Non-powered convenience outlet;
060 5 Tons 150 12½ Ton s Supp ly air smoke detector
072 6 Tons 180 15 T ons J Non-powered convenience outlet;
090 7½ Ton s 24 0 20 T ons Return & Supply air smoke detectors
K Non-powered convenience outlet;
Nominal Heating Capacity Low-ambient kit; Su pply air smo ke detector
DCG DCC/DC
H
(Factory-Installed Electric Heat) L Non-powered convenience outlet;
045 45,000 BTU/h XXX No Heat Low Ambient Kit;
090 90,000 BTU/h 010 10 kW 030 30 kW Return & Supply air smoke detectors
115 115,000 BTU/h 015 15 kW 031 30 kW M Powered convenience outlet;
140 140,000 BTU/h 016 15 kW 045 45 kW Low Ambient Kit
210 210,000 BTU/h 018 18 kW 046 46 kW N Powered convenience outlet;
350 350,000 BTU/h 020 20 kW 060 60 kW Return air smoke detector
400 400,000 BTU/h 025 25 kW O Powered convenience outlet;
Return & Supply air smoke detectors
See product spe cifications for heat size(s) available for each capacity. P Powered convenience outlet;
Supp ly air smoke detector
Vol ta ge Q Powered convenience outlet;
1 208V 1-Phase 4 460V 3-Phase Low Ambient Kit;
3 208v 3-Phase 7 575V 3-Phaze Return air smoke dete ctor
R Powered convenience outlet;
Low Ambient Kit; Supp ly air smoke detector
T Powered convenience outlet;
Supply Fan/Drive Type/Motors Low Ambient Kit;
B Belt Drive V 2-Speed Belt Drive Return & Supply air smoke de tectors
DDirectDrive U Non-powered convenience outlet;
Low-ambient kit; Return air smoke detector
V Low Ambient Kit;
Factory-Installed Options Return air smoke detector
XNoOptions W Low A mbient Kit;
A Downflow Econ omizer Return & Supply air smoke detectors
H Disconnect Switch (non-fused) Y Low Ambient Kit;
J Do wn flow Economizer ; Disconnect Switch (non-fused) Return & Supply air smoke detectors
Z Return & Supply air smoke detectors
Factory-Installed Options
Note: Not all options available for all products. X Standard Aluminized Heat Exchanger
S S tainless Steel He at Exchanger
Factory-Installed Options
• Stainless-Steel Heat Exchanger (DCG units only): A tubular heat exchanger made of 409-type
stainless steel is installed in the unit.
• Low-Ambient Kit: Allows for cooling operation at lower outdoor temperatures. On the 3-6 ton units, cooling operation is extended for 60ºF
ambient temperature to 35ºF outside air temperature. On 7½ to 20 ton units, cooling operation is extended from 35ºF ambient tem perature to 0ºF
outside air temperature.
• Economizers (Downflow): Based on air conditions, can provide outside air to cool the space.
• Electric Heat Kits (DCC and DCH units only): Available in all voltage options.
• Non-powered Convenience Outlet: A 120V,15A,GFCI outlet makes it easier for technicians to service the unit once an electrician runs power to the outlet.
• Powered Convenience Outlet: A 120V, 15A, GFCI outlet powered with a transformer built into the unit; for use when unit is not running.
• Disconnect Switch (non-fused): A disconnect switch is installed in the unit and factory wiring will be complete from the switch to the unit. Please note
that for air conditioning (DCC units) and heat pump models (DCH units), the appropriate electric heat kit must be ordered to be factory-installed along
with the disc onnect switch (non-fused) when it is ordered. Please note that for models with a powered convenienc e outlet option and a disconnect switch
(non-fused) option, the power to the powered convenience outlet will be shut off when the disconnect switch (non-fused) is in the off position.
• Return Air and/or Supply Air Smoke Detectors: Return air and/or supply air smoke detectors are installed in the unit.
Factor y-Installed Options
Revi sion Leve ls

PRODUCT IDENTIFICATION
4
The model number is used for positive identification of component parts used in manufacturing. Please use this number
when requesting service or parts information. NOTE: All unit combinations are not listed below. Models where performance
does not change are not listed individually.
DCG036XXX1DXXX
DCG036XXX3DXXX
DCG036XXX3BXXX
DCG036XXX4BXXX
DCG036XXX7BXXX
DCG048XXX1DXXX
DCG048XXX3DXXX
DCG048XXX3BXXX
DCG048XXX4BXXX
DCG048XXX7BXXX
DCG060XXX1DXXX
DCG006XXX3DXXX
DCG060XXX3BXXX
DCG060XXX4BXXX
DCG060XXX7BXXX
DCG072XXX3BXXX
DCG072XXX4BXXX
DCG072XXX7BXXX

PRODUCT DESIGN
5
DCG Light Commercial Package Gas Units are designed for
outdoor installations only, primarily in light commercial appli-
cations and are available in 208-230 volt single phase, 208-
230 volt three phase, 460 volt three phase and 575v three
phase in 3 thru 6 ton sizes with 1 compressor.
The connecting ductwork (Supply and Return) can be con-
nected for either horizontal or vertical airflow. In the vertical
application, a matching Roof Curb is recommended.
The removal of condensate water from the indoor coil can be
achieved by either the 3/4" NPT female fitting on the end of
the unit or by the 3/4" NPT female fitting located on the bot-
tom of the condensate pan. (Do not reduce the drain line
size).
Refrigerant flow control is achieved by use of flowrator type
metering device.
DCG units use the FasTest Access Fitting System which
consists of a saddle soldered to the suction and liquid lines
and then screwed into the saddle. NOTE: The core must
not be removed from the saddle until the refrigerant
charge has been removed. Failure to do so could result
in property damage or personal injury.
Filters are factory supplied in the return air compartment up-
stream from the indoor coil. The minimum filter area should
not be less than those sizes listed in the Specification Sec-
tion. Under no circumstances should the unit be operated
without return air filters.
Conditioned air is drawn through the filter(s), across the coil
and back into the conditioned space by the indoor blower.
DCG***XXX*D units indoor blower motors are PSC or EEM
type motors.
DCG***XXX*Bunits have 3 phase belt drive indoor blower mo-
tors that are energized through the blower motor contactor.
Air for condensing (cooling cycle) is drawn through the out-
door coil by a propeller fan, and is discharged vertically out
the top of the unit. The outdoor coil is designed for .0 static.
No additional restriction (ductwork) shall be applied.
DCG series package units use the Compliant Scroll com-
pressor; there are a number of design characteristics which
are different from the traditional reciprocating compressor.
- Due to their design Scroll compressors are inherently more
tolerant of liquid refrigerant. NOTE: Even though the com-
pressor section of a Scroll compressor is more tolerant
of liquid refrigerant, continued flood back or flooded start
conditions may wash oil from the bearing surfaces caus-
ing premature bearing failure.
- These Scroll compressors use "POE" or polyolester oil
which is NOT compatible with mineral oil based lubricants
like 3GS. "POE" oil must be used if additional oil is re-
quired.
- Compliant scroll compressors perform “quiet” shutdowns
that allow the compressor to restart immediately without
the need for a time delay. This compressor will restart
even if the system has not equalized.
- Operating pressures and amp draws may differ from stan-
dard reciprocating compressors. This information may be
found in the “Cooling Performance Data” section.
Location and Clearances
* In situations that have multiple units a minimum of 48" is
required between the condenser coils.
Outside Slab - Multi-positional
NOTE: A clearance of 48" is recommended on all sides of
the unit and 75" total clearance is recommended on the main
control panel side to facilitate possible fan shaft, coil, elec-
tric heat and gas furnace removal. See figure above.
Roof overhang should be no more than 36" and provisions
made to deflect the warm discharge air out from the over-
hang.
Minimum clearances are required to avoid air recirculation
and keep the unit operating at peak efficiency.

PRODUCT DESIGN
6
INSULATED
PANELS
Rooftop Installation
IIn installations where the unit is installed above ground level
and not serviceable from the ground (Example: Roof Top in-
stallations) the installer must provide service platform for ser-
vice person with rails or guards in accordance with local codes
or ordinances or in their absence with the latest edition of the
National Fuel Gas Code ANSIZ223.1.
NOTE: Unit must use roof curb or adaptor (and platform for
leveling, where necessary) to utilize bottom discharge.
WARNING
IMPORTANT: When using bottom discharge with roof curb,
ductwork should be attached to the curb prior to installing
the unit.
Refer to Roof Curb Installation Instructions for proper curb
installation. Curbing must be installed in compliance with
the National Roofing Contractors Association Manual.
Rigging Information
1. Unit must be lifted by the four lifting holes located at the
the base frame corners.
2. Lifting cables should be attached to the unit with shack-
les.
3. The distance between the crane hook and the top of the
unit must not be less than 60”.
4. Two spreader bars must span over the unit to prevent
damage to the cabinet by the lift cables. Spreader bars
must be of sufficient length so that cables do not come
in contact with the unit during transport. Remove wood
struts mounted beneath unit base frame before setting
unit on roof curb. These struts are intended to protect
unit base frame from forklift damage. Removal is ac-
complished by extracting the sheet metal retainers and
pulling the struts through the base of the unit. Refer to
rigging label on the unit.
CAUTION

PRODUCT DESIGN
7
2000 3000 4000 4500 5000 6000 7000 8000
U.S. BURNER ORIFICE 45/55 47/55 47/56 - 47/56 48/57 48/58 49/58
CANADA BURNER ORIFICE 45/55 - - 48/57 - - - -
2000 3000 4000 4500 5000 6000 7000 8000
U.S. BURNER ORIFICE 44/55 44/55 45/56 - 45/56 46/57 47/58 47/58
CANADA BURNER ORIFICE 44/55 - - 47/57 - - - -
2000 3000 4000 4500 5000 6000 7000 8000
U.S. BURNER ORIFICE 43/55 43/55 44/56 - 44/56 44/56 45/57 45/57
CANADA BURNER ORIFICE 43/55 - - 46/57 - - - -
HA-02
HA-02
INPUT/BURNER
25,000 BTUH NAT/20,000 BTUH/L. P.
ELEVATION ABOVE SEA-LEVEL (FEET)
HIGH ALTITUDE
KI T
ELEVATION ABOVE SEA-LEVEL (FEET)
20,000 BTUH NAT/20,000 BTUH/L. P.
INPUT/BURNER
INPUT/BURNER
HIGH ALTITUDE
KI T
HA-02
HIGH ALTITUDE
KI T
22,500 BTUH NAT/20,000 BTUH/L. P.
ELEVATION ABOVE SEA-LEVEL (FEET)
High Altitude Derate - U.S. Installations Only
IMPORTANT NOTE: The gas/electric units naturally derate with altitude. Do not attempt to increase the firing rate by
changing orifices or increasing the manifold pressure. This can cause poor combustion and equipment failure. At all
altitudes, the manifold pressure must be within 0.3 inches W.C. of that listed on the nameplate for the fuel used. At all
altitudes and with either fuel, the air temperature rise must be within the range listed on the unit nameplate. Refer to the
Installation Manual provided with the LP kit for conversion from natural gas to propane gas and for altitude adjustments.
When this package unit is installed at high altitude, the appropriate High Altitude orifice kit may be installed. As altitude
increases, there is a natural reduction in the density of both the gas fuel and combustion air. This kit will provide the proper
design certified input rate within the specified altitude range. High altitude kits are not approved for use in Canada. For
installations above 2,000 feet, use kit HA-02. The HA-02 kit is used for both Natural and LP gas at high altitudes.
For DCG036045, use LPT-00A propane conversion kit for propane conversions at altitudes below 2000 feet. Natural gas
installations below 2000 feet do not require a kit. For all other 3, 4 and 5 ton models, use LPM-05.
For propane conversion above 2000 feet, high altitude kit HA-02 is required in addition to propane conversion kit LPT-00A
or LPM-05.

PRODUCT DESIGN
8
30 40 50 60 70 80 90 110 120
100 130 140 150
100
90 80
70 60 50
40 30 20
10
OUTPUT BTU/HR x 1000
BTU OUTPUT vs TEMPERATURE RISE CHART
TEMPERATURE RISE
600 CFM
700
900
1000
1100
1200
1400
1600
1800
2000
2200
2400 CFM
FORMULAS
BTU OUTPUT = CFM x 1.08 x RISE
RISE = BTU OUTPUT
1.08 ÷ CFM
800

9
DCG Package Gas Units
3 - 6 Tons with R410A
A* REVISION UNITS

PRODUCT DIMENSIONS
10
DCG036-072XXX**XXXA*
For horizontal discharge, remove the supply and return duct covers and
place them over the vertical discharge return and supply openings. Install
with insulation facing up, using the longer screws provided in the litera-
ture package.
48-3/16”
47-1/2”
73-1/4”
3-5TONS
38-13/16”
6TONS
42-13/16”
DRAIN
THRU CURB
LOCATION EMBOSS
FOR
THRU THE
BASE
UTILITIES
7 13/16”
6 1/4”
19 7/16”
27 3/8”
47 1/2”
4 1/2”
7 1/2”
SUPPLY
RETURN
RETURN
SUPPLY
12”
17” 7 3/8”
11”
25”
6 1/4”
4 7/8”
V
ERTICAL DISCHARGE
HORIZONTAL DISCHARGE
BOTTOM VIEW OF UNIT
11”
12”
25”
17”