Potterton Kingfisher Mf, Инструкция по установке и обслуживанию

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Publication No. 5102977 14 Installation Requirements
CON0015C
Fully Pumped Sealed System
Fig. 10
Circulation Pump Selection
The resistance through the heat
exchanger when operating with a
water flow rate producing an 11°C
temperature rise at maximum boiler
output are shown in Table 5. If other
controls such as 3 position valves are
used in the system, the resistance
through them, quoted in their
manufacturers literature must be taken
into account. The pump may be fitted
on either flow or return. 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.
On fully pumped
systems either return connection may
be used.