Bosch C 1210 ESC - Fan Speed Adjustment

6 720 644 887
Installation instructions
21
NG LPG NG/LPG
Altitude
(above sea
level)
Vent
terminal
Total equivalent
vent length
1)
Minimum
power fan
speed (P2)
Minimum
power fan
speed (P2)
Maximum
power fan
speed (P1)
0 - 2000 ft
(0 - 610 m)
Concentric
6 - 25 ft
12 12
No
modification
For operation at
elevations above
2,000 ft (610 m)
the equipment
ratings shall be
reduced at the
rate of 4% for
each 1,000 ft
(305 m) above
sea level
26 - 46 ft
12 13
Twin
system
6 - 37 ft 12 12
38 - 62 ft 12 14
2000 - 4500 ft
(610 - 1372 m)
Concentric
6 - 25 ft 12 14
26 - 46 ft
13 14
Twin
system
6 - 37 ft
12 13
38 - 62 ft
13 14
4500 - 8000 ft
(1372 - 2439 m)
Concentric
6 - 25 ft
13 14
26 - 46 ft
13 15
Twin
system
6 - 37 ft
13 14
38 - 62 ft 13 15
Table 18 Fan speed adjustment for 3" piping
1) Full equivalent length (inlet + outlet piping + fittings)
NG LPG NG/LPG
Altitude
(above sea
level)
Vent
terminal
Total equivalent
vent length
1)
Minimum
power fan
speed (P2)
Minimum
power fan
speed (P2)
Maximum
power fan
speed (P1)
0 - 2000 ft
(0 - 610 m)
Concentric
3.5 - 25 ft 12 12
No
modification
required
For operation at
elevations above
2,000 ft (610 m)
the equipment rat-
ings shall be
reduced at the rate
of 4% for each
1,000 ft (305 m)
above sea level
26 - 46 ft 12 13
Twin
system
3.5 - 59 ft 12 12
60 - 126 ft 12
14
2000 - 4500 ft
(610 - 1372 m)
Concentric
3.5 - 25 ft 12* 14*
26 - 46 ft 13* 14*
Twin
system
3.5 - 59 ft 12* 13*
60 - 126 ft 13* 14*
4500 - 8000 ft
(1372 - 2439 m)
Concentric
3.5 - 25 ft 13* 14*
26 - 46 ft 13* 14*
Twin
system
3.5 - 59 ft 13* 14*
60 - 126 ft 13* 15*
* Above 2000 ft, CO2 levels must be checked with a combustion gas analyzer, see section 6.5 for instructions.
Table 19 Fan speed adjustment for 4" piping
1) Full equivalent length (inlet + outlet piping + fittings)