Trane DHMB060BCV3VB, Руководство по установке

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36 18-CD30D1-12
Installer’s Guide
HIGH ALTITUDE DERATE
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CAUTION
!
CAUTION
Maintain manifold pressure as specified in Table 15
in high altitude installations. Failure to do so may
result in poor ignition characteristics.
Input ratings (BTUH) of these furnaces are based on sea
level operation and should not be changed at elevations
up to 2,000 ft. (610m).
If the installation is 2,000 ft. (610m) or above, the furnace
input rate (BTUH) shall be reduced 4% for each 1,000 ft.
above sea level.
Installation of this furnace at altitudes above 2,000 ft.
(610m) shall be in accordance with local codes, or in the
absence of local codes, the
National Fuel Gas Code,
ANSI Z223.1/NFPA 54 or National Standard of Canada,
Natural Gas and Propane Installation Code, CSA B149.1.
The furnace input rate shall be checked by using the
methods of Combustion and Input Check. High altitude
kits are listed in Table 15A.
Table 15A
High Altitude Kit Used with Model:
BAYSWT07AHALTA *UHMB060ACV3V
*DHMB060BCV3V
BAYSWT09AHALTA *UHMB080ACV3V
*DHMB080ACV3V
*UHMC100ACV4V
*DHMC100ACV4V
BAYSWT08AHALTA *UHMD120ACV5V
*DHMD120BCV5V
* May be "A" or "T"
COMBUSTION AND INPUT CHECK
(SEE ALSO HIGH ALTITUDE DERATE)
NOTE: Before checking or adjusting the gas pressure,
make sure the condensate trap has been primed.
1. Make sure all Gas appliances are off except the fur-
nace.
2. Clock the Gas Meter with the furnace operating on
high heat for one revolution. Table 18 shows the flow
rate in cubic feet per hour for a measured time of
one revolution for a meter on which one revolution
indicates 2 cubic feet per hour of gas flow. For other
meters, use the following conversions:
a. For 1 Cu. Ft. Dial Gas Flow CFH = Chart Flow
Reading ÷ 2
b. For 1/2 Cu Ft. Dial Gas Flow CFH = Chart Flow
Reading ÷ 4
c. For 5 Cu. Ft. Dial Gas Flow CFH = 10X Chart Flow
Reading ÷ 4
3. Multiply the final figure by the heating value of the
gas obtained from the utility company and compare to the
nameplate rating. This must not exceed the nameplate
rating.
4. Repeat steps 2 and 3 with the furnace operating on
low heat.
5. Changes can be made by adjusting the manifold
pressure (See Table 15), or changing orifices (orifice
change may not always be required).
TABLE 15
Furnace Input rate
(KBTU/hr)
FINAL LP MANIFOLD PRESSURE SETTINGS (inches w.c.)
40% 65% 100%
60 2.1 ± 0.5 Not Adjustable 10.0 ± 0.5
80 2.1 ± 0.5 Not Adjustable 10.0 ± 0.5
100 2.1 ± 0.5 Not Adjustable 10.0 ± 0.5
Downflow 120 2.1 ± 0.5 Not Adjustable 10.0 ± 0.5
Upflow 120 2.9 ± 0.5 Not Adjustable 10.0 ± 0.5
For upflow 120KBTU/hr model, 1st stage is 45%
Manifold pressures apply for Propane applications ONLY
Furnace Input rate
(KBTU/hr)
FINAL NG MANIFOLD PRESSURE SETTINGS (inches w.c.)
40% 65% 100%
60 0.7 + 0.2 / - 0.0 Not Adjustable 3.5 ± 0.2
80 0.7 + 0.2 / - 0.0 Not Adjustable 3.5 ± 0.2
100 0.7 + 0.2 / - 0.0 Not Adjustable 3.5 ± 0.2
Downflow 120 0.7 + 0.2 / - 0.0 Not Adjustable 3.5 ± 0.2
Upflow 120 0.9 + 0.2 / - 0.0 Not Adjustable 3.5 ± 0.2
For upflow 120KBTU/hr model, 1st stage is 45%
Manifold pressures apply for Natural Gas applications ONLY