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Altitude Conversion
For elevations up to 2000 feet, rating plate input ratings apply.
For high altitudes (elevations over 2000 ft) contact Daikin
Applied Parts. See
Table 20
for part numbers. Or contact local
gas supplier to confirm gas heating value has been devalued
for applicable elevations.
Table 20: Furnace Identification for Altitude (DPS 016–028)
Elevation
Part Number
Natural Gas Fired Furnace with 50 MBH Burners
2000–2999
910166410
3000–3999
910166411
4000–4999
910166412
5000–5999
910166413
6000–6999
910166415
Natural Gas Fired Furnace with 45 MBH Burners
2000–2999
910166412
3000–3999
910166416
4000–4999
910166417
5000–5999
910166415
6000–6999
910166418
LPG Gas Fired Furnace with 50 MBH Burners
2000–2999
910166419
3000–3999
910166420
4000–4999
910166421
5000–5999
910166422
6000–6999
910166424
LPG Gas Fired Furnace with 45 MBH Burners
2000–2999
910166425
3000–3999
910166422
4000–4999
910166427
5000–5999
910166428
6000–6999
910166429
Start-Up Procedures
Start-Up Responsibility
DANGER
Overheating or failure of the gas supply to shut
off can cause equipment damage, severe personal
injury or death .
Turn off the manual gas valve to the
appliance before shutting off the electrical supply.
The start-up organization is responsible for determining that
the furnace, as installed and as applied, will operate within the
limits specified on the furnace rating plate.
1 .
The furnace must not operate at insufficient airflow or
temperature rise greater than specified (refer to
Table
14 on page 41
). On variable air volume systems it
must be determined that the furnace will not be operated
if or when system cfm is reduced below the specified
minimum airflow cfm.
2 .
It must be established that the gas supply is within the
proper pressure range (refer to
Table 14 on page 41
).
Start-up and service of this equipment must be performed by
trained and experienced technicians .
It is highly recommended
that the initial start-up and future service be performed by
Daikin trained technicians who are familiar with working on
live equipment. A representative of the owner or the operator
of the equipment should be present during start-up to receive
instructions in the operation, care and adjustment of the unit.
Before Start-Up
1 .
Notify inspectors or representatives who may be required
to be present during start-up of gas fuel equipment.
These could include the gas utility company, city gas
inspectors, heating inspectors, etc.
2 .
Review the equipment and service literature and become
familiar with the location and purpose of the furnace
controls. Determine where the gas and power can be
turned off at the unit and before the unit.
3 .
Determine that power is connected to the unit and
available.
4 .
Determine that the gas piping, meter, and service
regulator have been installed, tested, and meet the
equipment requirements .
5 .
Determine that proper instruments will be available for
the start-up. A proper start-up requires the following:
voltmeter, manometer or gauges with ranges for both
manifold pressure and inlet gas pressure.
Start-Up Preliminary
Close gas main.
1 .
Check the burner fan wheel for binding, rubbing, or loose
setscrews.
2 .
Check power.
3 .
Purge the gas lines.
4 .
Leak check. Using a rich soap-water mixture and a
brush, check the gas lines for leaks. Correct all leaks
before starting furnace.
IM 1125-7 • REBEL ROOFTOPS
50
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Summary of Contents for DPS005
Page 109: ...IM 1125 7 109 Addendum follows...