High Altitude Ratings; High Altitude Chart - ECR International Dunkirk DCB-75 Installation, Operation & Maintenance Manual

12.3 High Altitude Ratings

For elevations between 2000 ft (600 m) and 10,000 ft (3048 m), use the following information:
Model
Altitude
Number
DCB-75
DCB-100
DCC-115
2,000-4,500 ft
DCB-125
(600m-1350m)
DCC-150
DCB-165
DCC-205
DCB-165
4,501-6,500 ft
(1372 m -1981 m)
DCC-205
DCB-165
6,501-10,000 ft
(1982 m -3048 m)
DCC-205
Max CH Supply temp 176° F (80° C) for DCB-125 and DCC-150
*
Max DHW temp 140° F (60° C)
*

12.4 High Altitude Chart

75
100
115
Parameter
P71
125
High Fire
Fan Speed
150
165
205
75 & 100
115
Parameter
125
P72
Low Fire
150
Fan Speed
165
205
12 - RATINGS AND CAPACITIES
Input, MBH (KW)
Heating
Capacity,
Maximum Minimum
69.0 16.5
88.8 16.5
88.8 16.5
113 22
113 22
147 26.5
147 26.5
135 24.1
135 24.1
113 20.3
113 20.3
GAS
Model
0-2,000 ft.
[0-610 m]
Setting 75
RPM 4,600
Setting 85
RPM 5,350
Setting 220
RPM 7,200
Setting 115
RPM 6,150
Setting 220
RPM 7,200
Setting
RPM
Setting
RPM
Setting
RPM
Setting
RPM
Setting
RPM
Setting
RPM
Setting 43
RPM 1,180
Setting 40
RPM 1,150
CO Limit < 200 ppm
AFUE, % Max Input,
MBH*
MBH
62.7 92.0
81.1 95.0
81.1 95.0 109.7
101 95.0
101 95.0 137
137 95.0
137 95.0 184.5
126 95.0
126 95.0 168
105 95.0
105 95.0 141
** DCC-150 Max DHW Flow rate 3.5 gpm (13.2 l/min)
DCC-205 Max DHW flow rate 5.0 gpm (18.9 L/min)
**
Natural
Altitude
2,000- 10,000 ft
[610-3,048 m]
52
4,500
75
5,250
190
6,900
60
5,600
170
6,700
105
6,050
225
7,250
50
1,250
55
1,300
40
1,150
40
1,150
60
1,350
60
1,350
68
Domestic Hot Water (DHW) Circuit
Min Input, Max Output,
MBH MBH
16.6 100.2
22 122
26.5 157
24.1 143
20.3 120
LP
0-2,000 ft. 2,000- 10,000 ft
[0-610 m] [610-3,048 m]
75 52
4,600 4,600
85 75
5,350 5,250
220 190
7,200 6,900
65 40
5,650 5,400
170 150
6,700 6,500
120
6,200
220
7,200
70
1,450
55
1,300
25
1,000
25
1,000
45 60
1,200 1,350
45 60
1,200 1,350
240013501 REV A [03/15/2022]
**
Min Output,
MBH
15.3
19
23
20
17