EHC ECOSAVE 21K, Инструкция по эксплуатации

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15 Installation Requirements EHC
Condensate Drain 6.7
General instructions
Important
The condensate must be drained from the
appliance in accordance with applicable
rules and regulations.
Note Reliable operation of the appliance will
be afected by an improperly connected
condensate piping.
The condensate pipe must retain a
downward slope of at least 2.5 degrees
throughout.
This appliance is a high efficiency gas appliance that
creates condensate when operating. The condensate must
be discharged in accordance with any national or local
regulations in force since the condensate has an acidity (pH)
of approximately 3 - 4 (BS 6798:2000 & Part H1 of the Building
Regulations give further guidance).
A condensate trap is built into the appliance as standard.
Options for the condensate drain (see the figures on the
next page).
From the appliance to the drain/gully via a sink waste 1.
(the bottom of the appliance must be above the top of the
sink and must be downward-sloping to properly discharge
condensate)
From the appliance to the internal soil and vent stack 2.
From the appliance to a soakaway hole surrounded by 3.
limestone chipping
From the a 4. ppliance to the drain/gully
Of the above options, EHC recommends option 1 as the soap
from the sink neutralizes the acidic condensate.
If a sink waste is not abilable, EHC recommends options 2, 3, or
4. If permitted by local regulations, the condensate may
be drained directly into the drain/gully.
Note
If a soakaway hole is installed, periodical
replacement of the limestone chipping (or
neutralizing agent) is required. The rate of depletion
of the limestone varies depending on the usage
of the appliance. Occasionally check the depletion
of the neutralizer, and replace the limestone if any
depletion is observed.
CAUTION
Requirements for the condensate piping are as follows.
So that condensate can be properly drained the
t
diameter of the plastic piping should be a minimum of
22 mm.
The condensate pipe should be made of a non-corrosive
t
material, such as PVC, PVC-U, ABS, PVC-C or PP. Metal
materials are NOT suitable.
For safety reasons the ends of the pipes should extend
t
as close as possible to the ground or drain/gully.
To reduced the risk of the condensate becoming trapped
as few elbows and fttings as possible should be used.
When draining the condensate into an internal soil and t
vent stack, the plumbing effect must be considered.
If the pipes are easily affected by internal pressure
fluctuations, when WC's are flushed or sinks are emptied,
back-pressure may force water out of the appliance trap
and a lockout may occur.
The length of the external pipework should be kept to
t
a minimum and routed as vertically as possible. Where
the pipework is subjected to extreme cold or windchill,
weatherproof insulation should be used. If insulation is
not used then the condensate pipework should have a
minimum diameter of 32 mm.
For 22 mm diameter condensate drainage pipe, the t
maximum length is 3 metres.
If the appliance is fitted in an unheated location, the
t
entire pipe system should be treated as an external run.
In order to prevent sagging, any external runs need to t
be propped up with supporting clips.