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Daikin Tubular Heater Series
Package Heater Module
ANSI Z83.8-2013/CSA 2.6-2013
WARNING
Fire or explosion hazard .
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
Failure to follow safety warnings exactly could result
in serious injury, death or property damage. Be sure
to read and understand the installation, operation and
service instructions in this manual. Improper installation,
adjustment alteration, service or maintenance can
cause serious injury, death or property damage.
Do not store or use gasoline or other flammable vapors
or liquids in the vicinity of this or any other appliance.
What to do if you small gas:
• Do not try to light an appliance
• Do not touch any electrical switch
• Do not use any telephone in the building
• Leave the building immediately
• Call the gas supplier immediately and follow the gas
supplier's instructions
• If you cannot reach the gas supplier, call the fire
department
NOTICE
DAT heater series modules are a recognized furnace
component design certified by Intertek Testing Services (ETL).
For outdoor installation and installation downstream from
refrigeration systems in cabinet applications.
This furnace must be installed in the designated non-
combustible heat chamber of the cabinet. If it is removed, it
is only to be replaced with an approved Original Manufacture
Equipment Supplier furnace(s), installed and operated as
specified by the approved Original Manufacture Equipment
Supplier. It is not designed to have any portion of the heat
exchanger outside the cabinet in which the furnace module is
housed.
The Rating Plate/Name Plate has been permanently attached
to the furnace assembly. It contains information including gas
type, maximum and minimum input rating, manifold pressure,
maximum and minimum inlet gas pressure, maximum and
minimum airflow requirements, output capacity and electrical
rating for the furnace. The plate also includes model number,
serial number and scan code. This plate is to always remain
attached to the furnace.
This furnace must be applied in accordance with the
requirements of its listing.
Hooded and screened openings for combustion air have been
provided in the furnace(s) access door. The air opening provides
unrestricted combustion air to the burners and sized such that
a minimum free area is maintained. The minimum free area is
defined as 1 in
2
(625 mm
2
) per 4000 BTUH (2.345 kW).
The access door provides direct access to the furnace
vestibule where the burners, combustion inducer fan, ignition
controls and ignition safeties are housed.
The vent discharge is sized such that it is equal to or larger
than the discharge area of the combustion exhaust inducer fan.
A non-adjustable High Limit Switch will shut off the gas supply
to the main burners should the outlet air reach a temperature
exceed 250°F (121°C).
The cabinet supply air flow delivery package has been
designed to provide sufficiently well distributed air flow across
the heat exchanger to limit temperature rise as follows:
• Aluminized Steel: 1030°F (575°C)
• 409 Stainless Steel: 1080°F (600°C)
Clearance from combustibles to be no less than as listed below:
• Sides and back
. . . . . . . . . . . . . . . . . . . . . .
6 in (152 mm)
•
Bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 in (51 mm)
•
Top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 in (152 mm)
•
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36 in (914 mm)
• Vent pipe to any combustible surface
. . . . .
6 in (152 mm)
Do not use this package heater if any part has been under
water. Immediately call a qualified service technician to inspect
the heater and any gas control which has been under water.
Gas Furnace Design
If the 10th digit in the model number is a “G”, the rooftop
unit was furnished with a factory installed furnace (Example,
DPS010AHCG). The Rebel commercial rooftop units are
available with either the low, medium and high heat input
furnace (see capacities in
Table 14
). This packaged gas heat
rooftop unit is designed for outdoor non-residential installations
only. Furnace to be supplied with natural gas or LP only.
The gas heat furnace design consists of a tubular heat
exchanger, in-shot burner manifold with gas valve, induced
combustion blower, gas heat DDC control module and all
operational safeties. The tubular heat exchanger can come
with the standard aluminized steel construction or the optional
stainless steel construction. The safety switches include a
high-limit temperature switch, an auxiliary high-limit switch,
a combustion blower proof of airflow, and the flame roll-out
switch (see
Figure 41
).
Figure 40: Typical Gas Heat Section (Size 000 shown)
Gas
Field
Piping
IM 1125-7 • REBEL ROOFTOPS
40
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Summary of Contents for DPS005
Page 109: ...IM 1125 7 109 Addendum follows...