Certikin MB35S, Operating, Installation And Servicing Instructions

Page: 16 / 36

Condensing Pool Heater
13
22/12/08
Condensate Connection
The direction of the plastic condensate drain pipe
connection can be altered from the factory position
on the left, to the right.
 Remove the blanking plate from the left hand
side (
See Fig. 3.1 )
 Loosen the two screws holding the Trap
bracket and swivel the trap through 90 degrees.
 Secure the bracket and fit the supplied 40 mm
pipe.
 Example installations are shown in Fig 7.0 .
 Fit blanking plate to the right hand side.
( See Fig 7.1 )
Where possible an internal termination of the con-
densate discharge pipework should be used.
If this is not possible external pipes should be kept
as short as possible and insulated.
Where fitted in pipework that includes another trap
or a pump, for example the filter backwash pipework
to drain, an Air Break should be fitted between the
Heater and that pipework.
Avoid connecting to a kitchen sink trap as the solids
and fats in the drain will cause a blockage.
It is permissible to connect to an external gully or
rain water hopper provided they connect to a com-
bined system.
The condensate should not be run into a ‘grey water’
recycle system.
If the condensate pipe is connected to a stack it
should join not less than 450 mm above the foot of
the stack. In addition it should be positioned so there
no chance of cross-flow to another connection.
Installation pipework must be in 1¼” or 40 mm
Hunter plastic pipe to a suitable drain location with a
gradient of 2.5° (45mm/ metre run) minimum. If
connected to another drainage trap, an air break is
required between the Heater drain and that trap.
(
See Fig.7.0 & 7.1 ). External runs, should, if possi-
ble, be insulated to defer problems from freezing.
Check during commissioning that there is a leak free
working connection from the Heater to the drain.
The simplest way to do this is to carefully pour some
water into the boiler flue and check it emerges at the
drain. This will also fill the trap ready for operation.
The “Guide to the Condensing Boiler Assesment
Procedure for Dwellings” can be refered to, see
http://www.planningportal.gov.uk/england/profes-
sionals/en/1115314255842.html
Electrical Connections
WARNING: The appliance MUST be earthed.
All wiring for the Heater and system controls MUST
conform to I.E.E. Wiring Regulations, and work
should be tested using a suitable meter, for Earth
Continuity, Polarity, Short Circuit and Resistance to
Earth.
The Heater supply must be through a common
isolator, a double pole 3A fused isolating switch with
a contact separation of 3mm minimum on both
poles.
The cable used should be no less than 0.75mm
2
to
BS.6500 PVC, 3 core, and fixed ensuring the earth
connection is longer than the Live and Neutral.
Access to the Heater connections is made by the
removal of the Front Top Panel and the Electrical
Chassis cover, two screws.
The simplest and most flexible control scheme is to
use a Certikin CCP01 Control Unit. This provides
an electrical safety trip and timer with outputs for
the Heater, lights and an auxilary voltage free
output. It is pre-wired and tested and provided in a
standard IP55 plastic control box.
The Heater’s internal wiring is shown in Fig.11.0 .
Connections are as follows :-
4 Way Terminal Supply Connection
Earth
N Mains Neutral
SL Switched Live
L Permanent Live
A factory installed link has been fitted between SL
and L which should be removed if the Heater is to
have its own switched supply.
For systems using an external programmer, the
electrical wiring should follow the relevant control
manufacturer’s recommendations, with the
switched live from the controls returning to SL in the
4 way push-fit connector.
It is possible to connect several Heaters together
using the Multiple Heater Kit. Details for the parts
and installation of this kit are given on Page 17.