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IM 1287-4 • REBEL APPLIED ROOFTOP 112 www.DaikinApplied.com
Unit Maintenance
General Gas Furnace Information
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. Louvred 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 before the outlet air exceeds 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 heat exchanger temperatures to
1330 °F (721°C).
Gas Furnace Sequence of Operation
Figure 161: MQ108MV 200 MBH, 2 Stage; 5:1
Daikin MQ108MV furnaces are configured as a single manifold
as shown in
. One furnace control board is supplied
with this furnace model. The VB1285 control board controls
the modulating Section A of the furnace manifold. The VB1285
board requires a 0-10VDC signal as well as a permissive dry
contact. These connections can be made in Terminal Block 2
(TB-2). Furnace controls must sequenced in acending voltage
signal to produce full turn down.
Содержание Rebel Applied DPSA
Страница 15: ...Introduction www DaikinApplied com 15 IM 1287 4 REBEL APPLIED ROOFTOP Figure 17 VFD Inverter Box Components ...
Страница 109: ...Unit Maintenance www DaikinApplied com 109 IM 1287 4 REBEL APPLIED ROOFTOP Figure 159 10kW 50kW Full SCR Control ...
Страница 144: ...IM 1287 4 REBEL APPLIED ROOFTOP 144 www DaikinApplied com Furnace Wiring Diagrams Figure 178 600 MBH 2 Stage ...
Страница 145: ...Furnace Wiring Diagrams www DaikinApplied com 145 IM 1287 4 REBEL APPLIED ROOFTOP Figure 179 600 MBH 4 Stage ...
Страница 147: ...Figure 181 600 MBH 5 1 Modulation 400 MBH and 600 MBH 10 1 Modulation ...
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