Potterton PROFILE LPG 100e, Installation And Servicing Instructions, Page: 7 / 30

TECHNICAL DATA - Page 7
BOILER
SIZE
INJECTOR
SIZE
GAS RATE at
95.0 MJ/m3
(2500 Btu/W)
m3/h (W/h)
INPUT
kW (Btu/h)
OUTPUT
kW (Btu/h)
BURNER
PRESSURE
mbar (in wg)
SUPPLY
PRESSURE
mbar (in wg)
50e 2.2mm 0.73 (25.8) 18.88 (64,400) 15.1 (51,500) 35.7 (14.3) 37 (14.8)
60e 2.4mm 0.89 (31.4) 23.0 (78,500) 18.4 (62,800) 35.7 (14.3) 37 (14.8)
80e 2.7mm 1.13 (40.0) 29.31 (100,000) 23.45 (80,000) 34.1 (13.7) 37 (14.8)
100e 3.0mm 1.42 (50.0) 36.64 (125,000) 29.3 (100,000) 33.2 (13.3) 37 (14.8)
CIRCULATION PUMP SELECTION
The resistance through the heat exchanger when operating
with a water flow rate producing an 11 0C temperature rise
at maximum boiler output are shown in TABLE 2. If other
controls, such as three-position valves are used in the
system, the resistance through them, quoted in their
manufacturer’s literature must be taken into account The
pump may be fitted on either the flow or return and MUST be
wired directly to the boiler terminal block, see FIG. 23. It
must be fitted with two isolating valves which are positioned
as close to the pump as possible. Closing of any valve must
always leave the open vent unobstructed. TABLE 2
FIG. 5 PRESSURE LOSS ACROSS BOILER