Thermal Solutions APEX APX425C Installation, Operating And Service Instructions page 152

Appendix A
(continued)
Table A-4: Apex Altitude Adjustments
Altitude
2,001 ft.
to 4,500 ft.
4,001 ft.
to 6,000 ft.
6,001 ft.
to 7,800 ft.
7,801 ft.
to 10,100 ft.
NOTE: De-rate's per 1,000 ft. are approximate
**Based on minimum vent length**
152
Instructions for High Altitude Installations Above 2,000 ft.
Model Fuel
NG
APX425C
LP
NG
APX525C
LP
NG
APX625C
LP
NG
APX725C
LP
NG
APX825C
LP
NG
APX425C
LP
NG
APX525C
LP
NG
APX625C
LP
NG
APX725C
LP
NG
APX825C
LP
NG
APX425C
LP
NG
APX525C
LP
NG
APX625C
LP
NG
APX725C
LP
NG
APX825C
LP
NG
APX425C
LP
NG
APX525C
LP
NG
APX625C
LP
NG
APX725C
LP
NG
APX825C
LP
APEX Installation, Operating, & Service Instructions
Recommended CO Range
2
8.6-9.2
9.4-10.2
8.7-9.2
9.8-10.1
8.6-9.2
9.4-9.9
8.2-8.7
9.2-9.7
8.2-9.1
9.4-10.0
8.6-9.2
9.4-10.2
8.7-9.2
9.8-10.1
8.6-9.2
9.4-9.9
8.2-8.7
9.2-9.7
8.2-9.1
9.4-10.0
8.6-9.2
9.4-10.0
8.7-9.2
No Application
8.6-9.2
9.4-9.7
8.2-8.7
9.2-9.5
No Application
9.4-9.8
8.6-9.2
9.4-9.8
8.7-9.2
No Application
8.6-9.2
9.4-9.8
8.2-8.7
No Application
No Application
9.4-9.7
Percentage Derate
(approx. per 1,000 ft.)
2.3%
4.1%
0.0%
1.7%
1.2%
0.0%
2.3%
4.1%
0.0%
0.0%
1.2%
0.0%
2.2%
3.6%
No Application
0.7%
1.2%
0.8%
No Application
1.4%
2.2%
3.4%
No Application
2.0%
2.0%
No Application
No Application
2.8%
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