High Altitude Parameter - UTICA BOILERS MAH-125 Installation, Operation And Maintenance Manual

12.3 High Altitude Parameter

For elevations between 2000 ft (600m) and 10,000 ft (3048m), use the following information:
Model
Altitude
Number
MAH-125
MAC-150
2,000-4,500 ft
(600m-1350m)
MAH-165
MAC-205
MAH-165
4,501-6,500 ft
(1372m-1981m)
MAC-205
MAH-165
6,501-10,000 ft
(1982m-3048m)
MAC-205
Max CH Supply temp 176° F (80° C) for MAH-125 and MAC-150
*
Max DHW temp 140° F (60° C)
*
12 - RATINGS AND CAPACITIES
Input, MBH (KW)
Heating
Capacity,
Maximum Minimum
113 22
113 22
147 26.5
147 26.5
135 24.1
135 24.1
113 20.3
113 20.3
AFUE, %
Max Input,
MBH* MBH
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
**MAC-150 Max DHW Flow rate 3.5 GPM (13.2 l/min)
MAC-205 Max DHW flow rate 5.0 GPM (18.9L/min)
**
57
Domestic Hot Water (DHW) Circuit
Min Input, Max Output,
MBH MBH
22 122
26.5 157
24.1 143
20.3 120
240011941 REV B, [03/31/2018]
**
Min Output,
MBH
19
23
20
17