Ravenheat HE 25 S COMPACT, Инструкция по использованию, установке и обслуживанию

Страница: 38 / 67

38
5.26 SAFETY VALVE DISCHARGE
The safety valve is located to the rear
(15 mm copper) to permit a discharge pipe
to be connected. When connecting ensure the
discharge pipe does not restrict access. The
discharge should terminate facing downward
exterior to the building in a position where
discharging (possibly boiling water & steam)
will not create danger or nuisance, and not
to cause damage to electrical components
or wiring. The discharge must not be over an
entrance or a window or any other type of
access.
5.27 CONDENSATE DRAIN CONNECTION
It is important to verify that the
drip-plate with drain trap contains
water.
If necessary, the drip plate can be filled
using the trap provided (Fig. 49).
The condensate drain connection is a flexible
3/4” pipe and is therefore adjustable Fig. 49.
The drain pipe should have a fall of a least
2.5° away from the boiler. Condensate should,
if possible be discharged into the household
internal drainage system.
If this is not practicable, discharge can be
allowed into the external household drains or a
purpose designed soak away.
It is recommended that any external condensate
drain pipe is insulated and also must be of 40
mm (1” 1/2) diameter, through the outside wall to
prevent freezing in adverse weather conditions.
It is not necessary to provide air breaks or extra
traps in discharge pipe as there is already a 125
mm high trap inside the boiler.
Fitting an extra trap may cause the boiler siphon
to work incorrectly.
Refer to BS5546 or BS6798 for advice on
disposal of boiler condensate.
Notes: ALL EXTERNAL PIPE RUNS MUST BE IN ACCORDANCE WITH BS 6798
1 - INTERNAL TO SINK WASTE UPSTREAM OF
SINK WASTE TRAP
2 - INTERNAL CONNECTION TO SOIL VENT
STACK
Make connection to SVP using a solvent
welded saddle.
Fig. 32
Fig. 31