13
Mynute 24m
•
A 130mm hole is required for the passage of the
concentric terminal through the ceiling and/or roof.
Depending on site conditions it may be preferable
to install the terminal assembly prior to fitting the
twin flue pipes. Fit the appropriate flashing plate to
the roof and insert the vertical flue terminal through
the flashing plate from the outside, ensuring that
the collar on the flue terminal fits over the flashing.
Push-fit the twin flue pipes onto the concentric to
twin converter ensuring that the exhaust pipe
connects to the exhaust connection on the con-
centric to twin converter. If necessary cut the plain
ends (male) of the twin flue pipes to allow connec-
tion to the concentric to twin converter.
NOTE
•
Before cutting twin flue pipes ensure allowances
have been made for connection onto the previ-
ous piece and onto the concentric to twin con-
verter. The last twin flue pipes must be pushed
50mm onto the male spigots of the concentric to
twin converter.
•
You must ensure that the entire flue system is
properly supported and connected.
•
Ensure that any horizontal sections of pipe have
a 1° fall towards the appliance (17mm per
1000mm).
4.6
CONNECTING THE GAS AND WATER
The appliance is supplied with an accessories
pack that contains sealing washers and service
valves. The service valves are of the compression
type. When connecting pipe work to the valves,
tighten the compression end first then insert the
sealing washers before tightening the valve to the
appliance.
NOTE
It will be necessary to hold the valve with one
spanner whilst tightening with another.
4.6.1
GAS (fig. 6)
The appliance is supplied with a 15 mm service
Fig. 13
valve, connect a 15 mm pipe to the inlet of the
valve, and tighten both nuts.
NOTE
It will be necessary to calculate the diameter of the
gas pipe to ensure the appliance has an adequate
supply of gas.
4.6.2
FLOW & RETURN (fig. 6)
The appliance is supplied with 22 mm service
valves for the flow and return connections, connect
a 22 mm pipe to the inlet of each valve and tighten
both nuts.
4.6.3
SAFETY VALVE (fig. 6)
Connect the safety valve discharge pipe to the
safety valve outlet and tighten. The discharge pipe
must have a continuous fall away from the appli-
ance to outside and allow any water to drain away
thereby eliminating the possibility of freezing. The
discharge pipe must terminate in a position where
any water - possibly boiling - discharges safely
without causing damage or injury, but is still
visible.
4.7
ELECTRICAL CONNECTIONS
The electrical supply must be as specified in 3.7/
3.7a. The appliance is supplied, pre-wired with a
1.0 metre length of flex, connect the wires as
follows:
•
connect the Brown wire to the L (Live) terminal
of the plug or fused isolator;
•
connect the Blue wire to the N (Neutral) terminal
of the plug or fused isolator;
•
connect the Green/Yellow wire to the E (Earth)
terminal of the plug or isolator;
•
ensure the plug or fused isolator is fitted with a
3AMP fuse.
If this method of connection is unsuitable, please
refer to section 8. A qualified electrician should
connect the electrical supply to the appliance. If
controls - external to the appliance - are required,
a competent person must undertake the design of
any external electrical circuits, please refer to
Section 8 for detailed instructions. ANY EXTER-
NAL CONTROL OR WIRING MUST BE SERVED
FROM THE SAME ISOLATOR AS THAT OF THE
APPLIANCE. The supply cable from the isolator
to the appliance must be 3-core flexible sized
0.75mm to BS 6500. Wiring to the appliance must
be rated for operation in contact with surfaces up
to 90ºC.
4.7.1
CASING REMOVAL
To gain access to the appliance electrical connec-
tions you must first remove the casing, proceed as
follows:
•
locate and remove the 3 screws that secure the
outer casing to the appliance (fig 14);
•
gently pull the right-hand side of the casing then
the left-hand to disengage it from the retaining
clips;
•
lift the casing upward to disengage it from the top
locating hooks and then remove;
•
store the casing and screws safely until re-
quired. Re-fit in the reverse order.
convertor box
condensate trap
