Daikin DBG Series User manual
INSTALLATION INSTRUCTIONS
IOD-1048
03/2020
©2020
www.daikincomfort.com
Only personnel that have been trained to install, adjust, service or
requirements embodied in The American National Standard
/ National Standard of Canada
WARNING
Cancer and Reproductive Harm -
2
Replacement parts for this appliance are available through
These installation instructions cover the outdoor
•
•
•
3
Carbon monoxide producing devices (such as an automobile, space
heater, gas water heater, etc.) should not be operated in enclosed areas
such as unvenlated garages, ulity rooms or parking areas because of
the danger of carbon monoxide (CO) poisoning resulng from the exhaust
emissions. If a furnace or air handler is installed in an enclosed area such
as a garage, ulity room or parking area and a carbon monoxide producing
device is operated therein, there must be adequate, direct outside
venlaon.
CARBON MONOXIDE POISONING HAZARD
Special Warnin g for Installaon of Furnace or Air Handling Units in
Enclosed Areas su ch as Garages, Ulity Rooms or Parking Areas
This venlaon is necessary to avoid the danger of CO poisoning which
can occur if a carbon monoxide producing device connues to operate in
the enclosed area. Carbon monoxide emissions can be (re)circulated
throughout the structure if the furnace or air handler is operang in any
mode.
B10259-216
CO can cause serious illness including permanent brain
damage or death.
Los equipos ó aparatos que producen monóxido
(tal como automóvil, calentador de gas, calentador de
carbono (CO) que resulta de las
emisiones de gases de com busón.
gas, etc) no deben ser operados en áreas cerradas debido al riesgo
de envenenamiento por monóxido de
Si el equipo ó aparato se opera en
dichas áreas, debe exisr una adecuada venlación directa al exterior.
de carbono
agua por medio de
Advertencia especial para la instalación de calentadores ómanejadoras
de aire en áreas cerradas como estacionamientos ó cuartos de servicio.
B10259-216
RIESGO DE INTOXICACIÓN PORMONÓXIDO DE CARBONO
El monóxido de carbono puede causar enfermedades severas
como daño cerebral permanente ó muerte.
Las emisiones de monóxido de carbono pueden circular a través
del aparato cuando se opera en cualquier modo.
Averssement special au sujet de l'installaon d'appareils de chauffage
ou de traitement d'air dans des endroits clos, tets les garages, les
locaux d'entreen et les staonnements.
B10259-216
RISQUE D'EMPOISONNEMENT AUMONOXYDE DE CARBONE
Evitez de mere en marche les appareils produisant du monoxyde
de carbone (tels que les automobile, les appareils de chauffage
autonome,etc.) dans des endroits non venlés tels que les
d'empoisonnement au monoxyde de carbone. Si vous devez faire
fonconner ces appareils dans un endroit clos, assures-vous
qu'il y ait une venlaon directe provenant de l'exterier.
Le monoxyde de
des
carbone peut causer des maladies graves telles que
dommages permanents au cerveau et meme la mort.
Les émissions de monoxyde de carbone peuvent etre recircules dans les
endroits clos, si l'appareil de chauffage ou de traitement d'air sont
en marche.
Cee venlaon est nécessaire pour éviter le danger d'intoxicaon
au CO pouvant survenir si un appareil produisant du monoxyde
de carbone connue de fonconner au sein de la zo ne confinée.
Esta venlaciónes necesaria para evitar el peligro de envenenamiento
por CO, que puede ocurrir si un monóxido
de carbono sigue operando en el lugar cerrado .
disposivo que produc e
4
and then select the submenu for the type of product to be
This product is designed and manufactured to permit
installer’s responsibility to install the product in accordance
The heating and cooling capacities of the unit should be
greater than or equal to the design heating and cooling
American National Standards Institute
manufacturer assumes no responsibility for equipment
building services; supply and return duct connections; and
the unit are completely factory-installed and tested prior to
Units are generally installed on a steel roof mounting
installation on the roof structure prior to the arrival of the
Carefully inspect the unit for damage including damage
Original paid freight bill or indemnity in lieu
Copy of the inspection report issued by carrier
representative at the time damage is reported to
prompt inspection of damage and for a thorough
Carefully read all instructions for the installation prior
5
Unit should be energized 24 hours
prior to compressor start up to ensure crankcase
heater has sufficiently warmed the compressors.
Compressor damage may occur if this step is not
followed.
ranging from noisy operation to property or equipment
or personal property damage and that are not covered by
•
•
and combustion air inlet mounted on the unit are not
•
contaminated by compounds containing chlorine
commercial and industrial processes may also be
•
serving a separate appliance designed to burn solid
• To avoid possible illness or death of the building
•
•
economizer/manual fresh air damper/ motorized fresh
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• Do not remove any access panels until unit has been
•
6
•
adequate fastening method prior to setting the unit on the
leveling and mounting on the roof structure are the
•
•
perimeter curbs include duct connection frames to be
•
• The curbs must be supported on parallel sides by roof
• The roof members must not penetrate supply and
return duct opening areas as damage to the unit might
*In situations that have multiple units, a 36” minimum
clearance is required between the condenser coils.
access and to insure proper ventilation and condenser
7
Inspect curb to ensure that none of the utility services
Install all duct connections on the unit before placing the
8
Y
RETURN
• Unit must be lifted by the four lifting holes located at
•
•
•
sheet metal retainers and pulling the struts through
8
Refer to the Roof Curb Installation Instructions for proper
B
D
A
Width
ABD
144 222 190
144 141
142 220
9
HACR
All line voltage connections must be made through
•
• The unit must be electrically grounded in accordance
•
LOW VOLTAGE BLOCK
CONTROL BOX
NOTE: CHECK TRANSFORMER TO MATCH THE
CORRECT VOLTAGE TAP WITH LINE VOLTAGE
GROUNG LUG
Areas Without Convenience Outlet
be brought to the vicinity of the roof top unit for portable
10
unit base must be sealed (including those around conduit
Supply voltage to roof top unit must not vary by more than
Locate thermostat or remote sensor in the conditioned
condenser panel opening or through curb indicated in
11
NATURAL
The minimum supply pressure should not vary from that
1/2 3/4 11 1/4 1 1 /2
10 132 278 520 1050 1600
20 92 190 350 730 1100
30 73 152 285 590 980
40 63 130 245 500 760
50 56 115 215 440 670
60 50 105 195 400 610
70 46 96 180 370 560
80 43 90 170 350 530
90 40 84 160 320 490
100 38 79 150 305 460
Pressure= .50 PSIG or less and Pressure Drop of 0.3" W.C.
(Based on 0.60 Specific Gravity Gas)
Nominal Black Pipe Size (inches)
Length of
Pipe in Feet
Install a drip leg to trap dirt and moisture before it can
The unit must be connected to the building piping by
•
•
(Aluminum alloy tubing must not be used in
• Listed gas appliance connectors used in
that are completely in the same room as the
•
or tubing must be protected from physical
and connectors must be coated to protect
BURNER
DOOR
MANUAL
UNION
TBD
12
•
•
•
The unit is placed in operation by closing the main
All propane gas equipment must conform to the safety
sizing is available from most regulator manufacturers and
®®
Clyde’s®®
The gas supply piping location and installation for roof
13
connection to the gas valve to permit removal of the burner
Route gas piping to unit so that it does not interfere
align piping to prevent strains or misalignment of the
These units are designed for either natural or
on the entering side of the gas valve for test gauge
Another tap is provided on the manifold side of the
14
end of the unit and bottom of the drain pan for condensate
DRAIN
CONNECTION
UNIT 2" MINIMUM
3" MINIMUM
Drainage of condensate directly onto the roof may be
from the bottom connection and install it in the horizontal
Due to the fact that drain pans in any air conditioning
cleaning is necessary to prevent this build-up from plugging
proper startup of the equipment in the minimum amount of
air conditioning system startup and should be performed
the machines are used for
motors for unacceptable levels of construction dust and dirt
15
•
•
•
main supply lines must be functional and capable of
•
•
•
It is important to your safety that the unit has been properly
That nominal voltage value assigned
to a circuit or system for the purpose of designating its
That voltage assigned to a piece of
equipment for the purpose of designating its voltage class
The voltage of the line terminals
Three Phase Models Only
The drive on the supply fan is typically set in the middle
16
SANLENt
*DEFLECON
FORCE
h
C
d
D
*Apply force to the center of the span.
Standard
The driving and driven motor sheaves should be in
the belt tension and increasing or decreasing the pitch
C
B
important because some types of gas are heavier
17
the gas supply piping to the unit for tightness and purge the
system of air using methods outlined in the latest edition of
pressure tap is provided on the manifold side of the gas
NATURAL GAS
(Dia)
PROPANE (LP)
(Dia)
90,000 423,000 43 55
115,000 523,000 43 55
140,000 623,000 43 55
GAS ORIFICES
MAXIMUM IPPUT
(BTUH)
NUMBER OF
BURNERS
MAXIMUM
BTUH/BURNER
•
of total elevation and that variance in gas heating
should be made as outlined in the latest edition of
User’s Information
Manual
Connect a manometer to the inlet pressure tap of the
Inlet gas pressure can also be measured by removing the
18
NATURAL
The gas valve has a pressure tap to facilitate measurement
To measure the gas input use a gas meter and proceed as
per cubic foot and 34 seconds per cubic foot as determined
anomtr
anomtr
o
ON
O
Attach a hose and manometer to the outlet pressure
19
thermometers in supply and return air registers as close
All registers must be open; all duct dampers must be
Operation of the venter motor closes the pressure
If the control is unable to ignite the burners after its
20
Elevated temperatures at the control are normally caused
Located in the burner compartment at the top of the burner
push-button reset that cannot be actuated until the limit
The reason for elevated temperatures at the control should
be determined and repaired prior to resetting this manual
that the vibration grommets have been installed and
evacuate the system and recharge refrigerant to the unit’s
each refrigeration circuit measured at the suction service
Inspect all registers and set them to the normal open
The
Compressor contactor closes its contacts to provide
condenser fan motor is energized through the
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4
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11
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